feat(tui): use server viewed state

Co-authored-by: Shoubhit Dash <shoubhit2005@gmail.com>

bun.lock

@@ -188,12 +188,15 @@
         "@types/bun": "catalog:",
         "@typescript/native-preview": "catalog:",
         "effect": "catalog:",
+        "solid-js": "catalog:",
       },
       "peerDependencies": {
         "effect": "4.0.0-beta.101",
+        "solid-js": ">=1.9.0",
       },
       "optionalPeers": [
         "effect",
+        "solid-js",
       ],
     },
     "packages/codemode": {
@@ -612,6 +615,7 @@
         "@tsconfig/bun": "catalog:",
         "@types/bun": "catalog:",
         "@typescript/native-preview": "catalog:",
+        "prettier": "3.6.2",
         "typescript": "catalog:",
       },
     },

packages/app/src/context/server-sdk.test.ts

@@ -1,18 +1,6 @@
 import { describe, expect, test } from "bun:test"
 import type { OpenCodeEvent } from "@opencode-ai/client/promise"
-import { adaptServerEvent, coalesceServerEvents, resumeStreamAfterPageShow } from "./server-sdk"
-
-describe("resumeStreamAfterPageShow", () => {
-  test("restarts a stream only after a back-forward cache restore", () => {
-    let starts = 0
-    const start = () => starts++
-
-    resumeStreamAfterPageShow({ persisted: false } as PageTransitionEvent, start)
-    resumeStreamAfterPageShow({ persisted: true } as PageTransitionEvent, start)
-
-    expect(starts).toBe(1)
-  })
-})
+import { adaptServerEvent } from "./server-sdk"
 
 describe("adaptServerEvent", () => {
   test("preserves current permission requests", () => {
@@ -43,48 +31,3 @@ describe("adaptServerEvent", () => {
     })
   })
 })
-
-describe("current event buffering", () => {
-  const delta = (id: string, value: string, ordinal = 0) =>
-    adaptServerEvent({
-      id,
-      created: 1,
-      type: "session.text.delta",
-      location: { directory: "/repo" },
-      data: { sessionID: "ses", assistantMessageID: "msg", ordinal, delta: value },
-    } as OpenCodeEvent)
-
-  test("merges adjacent text deltas for the same message and ordinal", () => {
-    const result = coalesceServerEvents([delta("evt_1", "hello "), delta("evt_2", "world")])
-
-    expect(result).toHaveLength(1)
-    expect(result[0]?.current).toMatchObject({ id: "evt_2", data: { delta: "hello world" } })
-    expect(result[0]?.properties).toMatchObject({ delta: "hello world" })
-  })
-
-  test("coalesces current tool input deltas by tool ID", () => {
-    const current = (eventID: string, id: string, delta: string) =>
-      adaptServerEvent({
-        id: eventID,
-        created: 1,
-        type: "session.tool.input.delta",
-        location: { directory: "/repo" },
-        data: { sessionID: "ses", assistantMessageID: "msg", id, delta },
-      } as OpenCodeEvent)
-    const result = coalesceServerEvents([
-      current("evt_1", "call_1", "{"),
-      current("evt_2", "call_1", "}"),
-      current("evt_3", "call_2", "[]"),
-    ])
-
-    expect(result).toHaveLength(2)
-    expect(result[0]?.current).toMatchObject({ id: "evt_2", data: { id: "call_1", delta: "{}" } })
-    expect(result[1]?.current).toMatchObject({ id: "evt_3", data: { id: "call_2", delta: "[]" } })
-  })
-
-  test("preserves boundaries between distinct delta streams", () => {
-    const events = [delta("evt_1", "a"), delta("evt_2", "b", 1), delta("evt_3", "c")]
-
-    expect(coalesceServerEvents(events).map((event) => event.current?.id)).toEqual(["evt_1", "evt_2", "evt_3"])
-  })
-})

packages/app/src/context/server-sdk.tsx

@@ -1,9 +1,8 @@
 import type { OpenCodeEvent } from "@opencode-ai/client/promise"
+import { createClientConnection, type ClientConnectionStatus } from "@opencode-ai/client/solid"
 import type { Event } from "@/types"
 import { createGlobalEmitter } from "@solid-primitives/event-bus"
-import { makeEventListener } from "@solid-primitives/event-listener"
-import { type Accessor, batch, onCleanup, onMount } from "solid-js"
-import { createStore } from "solid-js/store"
+import { type Accessor, onCleanup } from "solid-js"
 import { createApiForServer, type ServerApi } from "@/utils/server"
 import { usePlatform } from "./platform"
 import { ServerConnection } from "./servers"
@@ -12,78 +11,15 @@ import { ServerScope } from "@/utils/server-scope"
 import { useServer } from "./server"
 
 export type ServerEvent = Event & { id?: string; current?: OpenCodeEvent }
-type ServerEventMap = { [Type in ServerEvent["type"]]: Extract<ServerEvent, { type: Type }> }
-type CurrentDelta = Extract<
-  OpenCodeEvent,
-  { type: "session.text.delta" | "session.reasoning.delta" | "session.tool.input.delta" | "session.compaction.delta" }
->
 
 export function adaptServerEvent(event: OpenCodeEvent): ServerEvent {
   return { id: event.id, type: event.type, properties: event.data, current: event } as ServerEvent
 }
 
-export function coalesceServerEvents(events: ServerEvent[]) {
-  const output: ServerEvent[] = []
-  events.forEach((event) => {
-    const current = currentDelta(event.current)
-    if (current) {
-      const previous = output[output.length - 1]
-      const prior = currentDelta(previous?.current)
-      if (
-        previous &&
-        prior &&
-        prior.location?.directory === current.location?.directory &&
-        currentDeltaKey(prior) === currentDeltaKey(current)
-      ) {
-        const fragment = currentDeltaFragment(prior) + currentDeltaFragment(current)
-        const data =
-          current.type === "session.compaction.delta"
-            ? { ...current.data, text: fragment }
-            : { ...current.data, delta: fragment }
-        output[output.length - 1] = {
-          ...event,
-          properties: data,
-          current: { ...current, data } as CurrentDelta,
-        } as ServerEvent
-        return
-      }
-      output.push(event)
-      return
-    }
-    output.push(event)
-  })
-  return output
-}
-
-function currentDelta(event: OpenCodeEvent | undefined): CurrentDelta | undefined {
-  if (
-    event?.type === "session.text.delta" ||
-    event?.type === "session.reasoning.delta" ||
-    event?.type === "session.tool.input.delta" ||
-    event?.type === "session.compaction.delta"
-  )
-    return event
-}
-
-function currentDeltaKey(event: CurrentDelta) {
-  if (event.type === "session.tool.input.delta")
-    return `${event.type}:${event.data.sessionID}:${event.data.assistantMessageID}:${event.data.id}`
-  if (event.type === "session.compaction.delta") return `${event.type}:${event.data.sessionID}`
-  return `${event.type}:${event.data.sessionID}:${event.data.assistantMessageID}:${event.data.ordinal}`
-}
-
-function currentDeltaFragment(event: CurrentDelta) {
-  return event.type === "session.compaction.delta" ? event.data.text : event.data.delta
-}
-
-export function resumeStreamAfterPageShow(event: PageTransitionEvent, start: () => unknown) {
-  if (!event.persisted) return
-  start()
-}
-
+type ServerEventMap = { [Type in ServerEvent["type"]]: Extract<ServerEvent, { type: Type }> }
 type ServerEventEmitter = ReturnType<typeof createGlobalEmitter<ServerEventMap>>
 type ServerLocationEventEmitter = ReturnType<typeof createGlobalEmitter<{ [directory: string]: ServerEvent }>>
-export type ServerConnectionStatus = "connecting" | "connected" | "reconnecting"
+export type ServerConnectionStatus = ClientConnectionStatus
 type ServerSDKBase = {
   server: ServerConnection.Any
   scope: ServerScope
@@ -105,227 +41,38 @@ type ServerSDKBase = {
 
 function createServerSdkContextBase(server: ServerConnection.Any, scope: ServerScope): ServerSDKBase {
   const platform = usePlatform()
-  const abort = new AbortController()
-
-  const eventFetch = (() => {
-    if (!platform.fetch || !server) return
-    try {
-      const url = new URL(server.http.url)
-      const loopback = url.hostname === "localhost" || url.hostname === "127.0.0.1" || url.hostname === "::1"
-      if (url.protocol === "http:" && !loopback) return platform.fetch
-    } catch {
-      return
-    }
-  })()
-
-  const eventApi = createApiForServer({ server: server.http, fetch: eventFetch })
+  const api = createApiForServer({ server: server.http, fetch: platform.fetch })
   const emitter = createGlobalEmitter<ServerEventMap>()
   const locations = createGlobalEmitter<{ [directory: string]: ServerEvent }>()
 
-  const FLUSH_FRAME_MS = 16
-  const STREAM_YIELD_MS = 8
-  const CONNECT_TIMEOUT_MS = 2_000
-  const RECONNECT_DELAY_MS = 1_000
-
-  let queue: ServerEvent[] = []
-  let buffer: ServerEvent[] = []
-  let timer: ReturnType<typeof setTimeout> | undefined
-  let last = 0
-
-  function flush() {
-    if (timer) clearTimeout(timer)
-    timer = undefined
-
-    if (queue.length === 0) return
-
-    const events = queue
-    queue = buffer
-    buffer = events
-    queue.length = 0
-
-    last = Date.now()
-    const output = coalesceServerEvents(events)
-    batch(() => {
-      output.forEach((event) => {
-        emitter.emit(event.type, event)
-        const directory = event.current?.location?.directory
-        if (directory) locations.emit(directory, event)
-      })
-    })
-
-    buffer.length = 0
-  }
-
-  function schedule() {
-    if (timer) return
-    const elapsed = Date.now() - last
-    timer = setTimeout(flush, Math.max(0, FLUSH_FRAME_MS - elapsed))
-  }
-
-  function publish(event: OpenCodeEvent) {
-    queue.push(adaptServerEvent(event))
-    schedule()
-  }
-
-  function wait(delay: number, signal: AbortSignal) {
-    return new Promise<void>((resolve) => {
-      const timer = setTimeout(done, delay)
-      signal.addEventListener("abort", done, { once: true })
-      function done() {
-        clearTimeout(timer)
-        signal.removeEventListener("abort", done)
-        resolve()
-      }
-    })
-  }
-  let attempt: AbortController | undefined
-  let run: Promise<void> | undefined
-  let started = false
-  let generation = 0
-  const [connection, setConnection] = createStore<{
-    status: ServerConnectionStatus
-    attempt: number
-    error?: string
-  }>({ status: "connecting", attempt: 0 })
-
-  async function connect(signal: AbortSignal): Promise<{ error: unknown; connectedAt: number | undefined }> {
-    let connectedAt: number | undefined
-
-    // Bound the initial handshake and tie this request to the stream lifetime.
-    const request = new AbortController()
-    const cancel = () => request.abort(signal.reason)
-    const timeout = setTimeout(() => request.abort(new Error("Timed out connecting to server")), CONNECT_TIMEOUT_MS)
-    signal.addEventListener("abort", cancel, { once: true })
-
-    try {
-      // Open the event stream and validate its initial handshake.
-      const iterator = eventApi.event.subscribe({ signal: request.signal })[Symbol.asyncIterator]()
-      const first = await iterator.next()
-
-      if (signal.aborted) return { error: undefined, connectedAt }
-      if (first.done) {
-        const error =
-          request.signal.reason instanceof Error ? request.signal.reason : new Error("Event stream disconnected")
-        return { error, connectedAt }
-      }
-      if (first.value.type !== "server.connected")
-        return { error: new Error("Event stream did not start with server.connected"), connectedAt }
-
-      // Publish the connected state before forwarding live events.
-      clearTimeout(timeout)
-      publish(first.value)
-      connectedAt = Date.now()
-      setConnection({ status: "connected", attempt: 0, error: undefined })
-
-      // Forward events until the stream closes or this connection is cancelled.
-      let yielded = Date.now()
-      while (!signal.aborted) {
-        const event = await iterator.next()
-        if (signal.aborted) return { error: undefined, connectedAt }
-        if (event.done) return { error: new Error("Event stream disconnected"), connectedAt }
-        publish(event.value)
-        if (Date.now() - yielded < STREAM_YIELD_MS) continue
-        yielded = Date.now()
-        await wait(0, signal)
-      }
-      return { error: undefined, connectedAt }
-    } catch (error) {
-      return { error, connectedAt }
-    } finally {
-      request.abort()
-      clearTimeout(timeout)
-      signal.removeEventListener("abort", cancel)
-    }
-  }
-
-  async function runStream(active: number) {
-    let retries = 0
-    // oxlint-disable-next-line no-unmodified-loop-condition -- stop() changes the lifecycle flags and aborts the active request
-    while (!abort.signal.aborted && started && generation === active) {
-      setConnection({ status: retries === 0 ? "connecting" : "reconnecting", attempt: retries, error: undefined })
-      const controller = new AbortController()
-      attempt = controller
-      const onAbort = () => controller.abort()
-      abort.signal.addEventListener("abort", onAbort)
-      const result = await connect(controller.signal)
-      abort.signal.removeEventListener("abort", onAbort)
-
-      if (abort.signal.aborted || !started || generation !== active) {
-        if (attempt === controller) attempt = undefined
-        return
-      }
-      if (result.connectedAt !== undefined && Date.now() - result.connectedAt >= 1_000) retries = 0
-      retries += 1
-      const message =
-        result.error === undefined
-          ? undefined
-          : result.error instanceof Error
-            ? result.error.message
-            : String(result.error)
-      console.info("[global-sdk] event stream disconnected", {
-        url: server.http.url,
-        fetch: eventFetch ? "platform" : "webview",
-        attempt: retries,
-        error: message,
-      })
-      setConnection({ status: "reconnecting", attempt: retries, error: message })
-      await wait(RECONNECT_DELAY_MS, controller.signal)
-      if (attempt === controller) attempt = undefined
-    }
-  }
-
-  function start() {
-    if (started) return run
-    started = true
-    const active = ++generation
-    const previous = run
-    const current = (async () => {
-      if (previous) await previous
-      await runStream(active)
-    })().finally(() => {
-      if (run !== current) return
-      run = undefined
-      flush()
-    })
-    run = current
-    return run
-  }
-
-  function stop() {
-    started = false
-    generation++
-    attempt?.abort()
-  }
-
-  onMount(() => {
-    makeEventListener(window, "pagehide", stop)
-    makeEventListener(window, "pageshow", (event) => resumeStreamAfterPageShow(event, start))
-    void start()
+  const connection = createClientConnection(api, {
+    flushInterval: 16,
+    pageLifecycle: true,
+    onEvent(event) {
+      const adapted = adaptServerEvent(event)
+      emitter.emit(adapted.type, adapted)
+      const directory = event.location?.directory
+      if (directory) locations.emit(directory, adapted)
+    },
+    log: {
+      info(message, data) {
+        if (message !== "event stream disconnected") return
+        console.info("[global-sdk] event stream disconnected", { url: server.http.url, ...data })
+      },
+    },
   })
 
   onCleanup(() => {
-    stop()
-    abort.abort()
-    if (timer) clearTimeout(timer)
-    timer = undefined
-    queue = []
-    buffer = []
     emitter.clear()
     locations.clear()
   })
 
-  const api = createApiForServer({ server: server.http, fetch: platform.fetch })
-
   return {
     server,
     scope,
     url: server.http.url,
     api,
-    connection: {
-      status: () => connection.status,
-      attempt: () => connection.attempt,
-      error: () => connection.error,
-    },
+    connection,
     event: {
       on: emitter.on.bind(emitter),
       listen: emitter.listen.bind(emitter),

packages/client/package.json

@@ -20,6 +20,7 @@
     "./promise": "./src/promise/index.ts",
     "./promise/api": "./src/promise/api.ts",
     "./service": "./src/promise/service.ts",
+    "./solid": "./src/solid/index.ts",
     "./effect": "./src/effect/index.ts",
     "./effect/api": "./src/effect/api.ts",
     "./effect/service": "./src/effect/service.ts"
@@ -36,11 +37,15 @@
     "@opencode-ai/protocol": "workspace:*"
   },
   "peerDependencies": {
-    "effect": "4.0.0-beta.101"
+    "effect": "4.0.0-beta.101",
+    "solid-js": ">=1.9.0"
   },
   "peerDependenciesMeta": {
     "effect": {
       "optional": true
+    },
+    "solid-js": {
+      "optional": true
     }
   },
   "devDependencies": {
@@ -49,6 +54,7 @@
     "@tsconfig/bun": "catalog:",
     "@types/bun": "catalog:",
     "@typescript/native-preview": "catalog:",
-    "effect": "catalog:"
+    "effect": "catalog:",
+    "solid-js": "catalog:"
   }
 }

packages/client/src/effect/api/api.ts

@@ -382,6 +382,15 @@ export type Endpoint5_31Output =
           readonly location?: Location.Ref | undefined
           readonly data: { readonly sessionID: Session.ID; readonly title: string }
         }
+      | {
+          readonly id: Event.ID
+          readonly created: number
+          readonly metadata?: { readonly [x: string]: unknown } | undefined
+          readonly type: "session.viewed"
+          readonly durable: { readonly aggregateID: string; readonly seq: Event.Seq; readonly version: Event.Version }
+          readonly location?: Location.Ref | undefined
+          readonly data: { readonly sessionID: Session.ID }
+        }
       | {
           readonly id: Event.ID
           readonly created: number
@@ -914,6 +923,10 @@ export type Endpoint5_34Input = { readonly sessionID: Session.ID; readonly messa
 export type Endpoint5_34Output = SessionMessage.Info
 export type SessionMessageOperation<E = never> = (input: Endpoint5_34Input) => Effect.Effect<Endpoint5_34Output, E>
 
+export type Endpoint5_35Input = { readonly sessionID: Session.ID }
+export type Endpoint5_35Output = void
+export type SessionViewOperation<E = never> = (input: Endpoint5_35Input) => Effect.Effect<Endpoint5_35Output, E>
+
 export interface SessionApi<E = never> {
   readonly list: SessionListOperation<E>
   readonly create: SessionCreateOperation<E>
@@ -958,6 +971,7 @@ export interface SessionApi<E = never> {
   readonly interrupt: SessionInterruptOperation<E>
   readonly background: SessionBackgroundOperation<E>
   readonly message: SessionMessageOperation<E>
+  readonly view: SessionViewOperation<E>
 }
 
 export type Endpoint6_0Input = {

packages/client/src/effect/generated/client.ts

@@ -86,6 +86,8 @@ import type {
   Endpoint5_33Output,
   Endpoint5_34Input,
   Endpoint5_34Output,
+  Endpoint5_35Input,
+  Endpoint5_35Output,
   Endpoint6_0Input,
   Endpoint6_0Output,
   Endpoint7_0Input,
@@ -610,6 +612,11 @@ const Endpoint5_34 = (raw: RawClient["server.session"]) => (input: Endpoint5_34I
     ),
   )
 
+const Endpoint5_35 = (raw: RawClient["server.session"]) => (input: Endpoint5_35Input) =>
+  preserveEffect<Endpoint5_35Output>()(
+    raw["session.view"]({ params: { sessionID: input["sessionID"] } }).pipe(Effect.mapError(mapClientError)),
+  )
+
 const adaptGroup5 = (raw: RawClient["server.session"]) => ({
   list: Endpoint5_0(raw),
   create: Endpoint5_1(raw),
@@ -639,6 +646,7 @@ const adaptGroup5 = (raw: RawClient["server.session"]) => ({
   interrupt: Endpoint5_32(raw),
   background: Endpoint5_33(raw),
   message: Endpoint5_34(raw),
+  view: Endpoint5_35(raw),
 })
 
 const Endpoint6_0 = (raw: RawClient["server.message"]) => (input: Endpoint6_0Input) =>

packages/client/src/promise/generated/client.ts

@@ -80,6 +80,8 @@ import type {
   SessionBackgroundOutput,
   SessionMessageInput,
   SessionMessageOutput,
+  SessionViewInput,
+  SessionViewOutput,
   MessageListInput,
   MessageListOutput,
   ModelListInput,
@@ -896,6 +898,17 @@ export function make(options: ClientOptions) {
           },
           requestOptions,
         ).then((value) => value.data),
+      view: (input: SessionViewInput, requestOptions?: RequestOptions) =>
+        request<SessionViewOutput>(
+          {
+            method: "POST",
+            path: `/api/session/${encodeURIComponent(input.sessionID)}/view`,
+            successStatus: 204,
+            declaredStatuses: [404, 401, 400],
+            empty: true,
+          },
+          requestOptions,
+        ),
     },
     message: {
       list: (input: MessageListInput, requestOptions?: RequestOptions) =>

packages/client/src/promise/generated/types.ts

@@ -479,6 +479,16 @@ export type SessionRenamed = {
   data: { sessionID: string; title: string }
 }
 
+export type SessionViewed = {
+  id: string
+  created: number
+  metadata?: { [x: string]: any }
+  type: "session.viewed"
+  durable: { aggregateID: string; seq: number; version: 1 }
+  location?: LocationRef
+  data: { sessionID: string }
+}
+
 export type SessionDeleted = {
   id: string
   created: number
@@ -1510,7 +1520,7 @@ export type SessionInfo = {
   model?: ModelRef
   cost: MoneyUSD
   tokens: TokenUsageInfo
-  time: { created: number; updated: number; archived?: number }
+  time: { created: number; updated: number; idle?: number; viewed?: number; archived?: number }
   title?: string
   location: LocationRef
   subpath?: string
@@ -1923,6 +1933,7 @@ export type SessionEventDurable =
   | SessionModelSelected
   | SessionMoved
   | SessionRenamed
+  | SessionViewed
   | SessionDeleted
   | SessionForked
   | SessionInboxDelivered
@@ -2013,6 +2024,7 @@ export type V2Event =
   | SessionModelSelected
   | SessionMoved
   | SessionRenamed
+  | SessionViewed
   | SessionUsageUpdated
   | SessionDeleted
   | SessionForked
@@ -2476,7 +2488,13 @@ export type SessionImportInput = {
         readonly reasoning: number
         readonly cache: { readonly read: number; readonly write: number }
       }
-      readonly time: { readonly created: number; readonly updated: number; readonly archived?: number }
+      readonly time: {
+        readonly created: number
+        readonly updated: number
+        readonly idle?: number
+        readonly viewed?: number
+        readonly archived?: number
+      }
       readonly title?: string
       readonly location: { readonly directory: string; readonly workspaceID?: string }
       readonly subpath?: string
@@ -2743,7 +2761,13 @@ export type SessionImportInput = {
         readonly reasoning: number
         readonly cache: { readonly read: number; readonly write: number }
       }
-      readonly time: { readonly created: number; readonly updated: number; readonly archived?: number }
+      readonly time: {
+        readonly created: number
+        readonly updated: number
+        readonly idle?: number
+        readonly viewed?: number
+        readonly archived?: number
+      }
       readonly title?: string
       readonly location: { readonly directory: string; readonly workspaceID?: string }
       readonly subpath?: string
@@ -3010,7 +3034,13 @@ export type SessionImportInput = {
         readonly reasoning: number
         readonly cache: { readonly read: number; readonly write: number }
       }
-      readonly time: { readonly created: number; readonly updated: number; readonly archived?: number }
+      readonly time: {
+        readonly created: number
+        readonly updated: number
+        readonly idle?: number
+        readonly viewed?: number
+        readonly archived?: number
+      }
       readonly title?: string
       readonly location: { readonly directory: string; readonly workspaceID?: string }
       readonly subpath?: string
@@ -3936,6 +3966,10 @@ export type SessionMessageInput = {
 
 export type SessionMessageOutput = { data: SessionMessageInfo }["data"]
 
+export type SessionViewInput = { readonly sessionID: { readonly sessionID: string }["sessionID"] }
+
+export type SessionViewOutput = void
+
 export type MessageListInput = {
   readonly sessionID: { readonly sessionID: string }["sessionID"]
   readonly limit?: {

packages/client/src/solid/connection.ts

@@ -0,0 +1,218 @@
+import { batch, onCleanup, onMount } from "solid-js"
+import { createStore } from "solid-js/store"
+import type { OpenCodeClient, OpenCodeEvent } from "../promise"
+
+export type ClientConnectionStatus = "connected" | "connecting" | "reconnecting"
+export type ClientConnectionEvent = {
+  readonly type: "client.connection"
+  readonly created: number
+  readonly data: {
+    readonly status: "connecting" | "connected" | "disconnected" | "reconnecting"
+    readonly attempt: number
+    readonly error?: string
+  }
+}
+
+export type ClientConnectionOptions = {
+  readonly reconnect?: (signal: AbortSignal) => Promise<OpenCodeClient>
+  readonly onEvent: (event: OpenCodeEvent) => void
+  readonly flushInterval?: number
+  readonly pageLifecycle?: boolean
+  readonly log?: {
+    readonly debug?: (message: string, data?: Readonly<Record<string, unknown>>) => void
+    readonly info?: (message: string, data?: Readonly<Record<string, unknown>>) => void
+  }
+}
+
+const connectTimeout = 2_000
+const reconnectDelay = 1_000
+const connectionHistoryLimit = 50
+
+export function createClientConnection(initialApi: OpenCodeClient, options: ClientConnectionOptions) {
+  const abort = new AbortController()
+  const history: ClientConnectionEvent[] = []
+  const [connection, setConnection] = createStore<{
+    status: ClientConnectionStatus
+    attempt: number
+    error?: string
+  }>({ status: "connecting", attempt: 0 })
+  let api = initialApi
+  let pending: OpenCodeEvent[] = []
+  let flushTimer: ReturnType<typeof setTimeout> | undefined
+  let stream: AbortController | undefined
+  let run: Promise<void> | undefined
+  let started = false
+  let generation = 0
+
+  function record(status: ClientConnectionEvent["data"]["status"], attempt: number, error?: string) {
+    history.push({ type: "client.connection", created: Date.now(), data: { status, attempt, error } })
+    if (history.length > connectionHistoryLimit) history.shift()
+  }
+
+  function publish(event: OpenCodeEvent) {
+    pending.push(event)
+    if (flushTimer) return
+    flushTimer = setTimeout(() => {
+      flushTimer = undefined
+      const events = pending
+      pending = []
+      batch(() => events.forEach(options.onEvent))
+    }, options.flushInterval ?? 10)
+  }
+
+  async function connect(signal: AbortSignal, attempt: number) {
+    let connectedAt: number | undefined
+    const request = new AbortController()
+    const cancel = () => request.abort(signal.reason)
+    const timeout = setTimeout(() => request.abort(new Error("Timed out connecting to server")), connectTimeout)
+    signal.addEventListener("abort", cancel, { once: true })
+
+    try {
+      record(attempt === 0 ? "connecting" : "reconnecting", attempt)
+      options.log?.info?.("event stream connecting", { attempt })
+      const iterator = api.event.subscribe({ signal: request.signal })[Symbol.asyncIterator]()
+      const first = await iterator.next()
+      if (signal.aborted) return { error: undefined, connectedAt }
+      if (first.done)
+        return {
+          error:
+            request.signal.reason instanceof Error ? request.signal.reason : new Error("Event stream disconnected"),
+          connectedAt,
+        }
+      if (first.value.type !== "server.connected")
+        return { error: new Error("Event stream did not start with server.connected"), connectedAt }
+
+      clearTimeout(timeout)
+      record("connected", attempt)
+      connectedAt = Date.now()
+      options.log?.info?.("event stream connected")
+      publish(first.value)
+      setConnection({ status: "connected", attempt: 0, error: undefined })
+
+      while (!signal.aborted) {
+        const event = await iterator.next()
+        if (signal.aborted) return { error: undefined, connectedAt }
+        if (event.done) return { error: new Error("Event stream disconnected"), connectedAt }
+        if ("durable" in event.value)
+          options.log?.debug?.("event", {
+            type: event.value.type,
+            aggregateID: event.value.durable.aggregateID,
+            seq: event.value.durable.seq,
+          })
+        publish(event.value)
+      }
+      return { error: undefined, connectedAt }
+    } catch (error) {
+      return { error, connectedAt }
+    } finally {
+      request.abort()
+      clearTimeout(timeout)
+      signal.removeEventListener("abort", cancel)
+    }
+  }
+
+  async function runStream(active: number) {
+    let attempt = 0
+    while (!abort.signal.aborted && started && generation === active) {
+      setConnection({ status: attempt === 0 ? "connecting" : "reconnecting", attempt })
+      const controller = new AbortController()
+      stream = controller
+      const cancel = () => controller.abort(abort.signal.reason)
+      abort.signal.addEventListener("abort", cancel)
+      const result = await connect(controller.signal, attempt)
+      abort.signal.removeEventListener("abort", cancel)
+      if (abort.signal.aborted || !started || generation !== active) return
+      if (result.connectedAt !== undefined && Date.now() - result.connectedAt >= reconnectDelay) attempt = 0
+      attempt += 1
+      const message = errorMessage(result.error)
+      record("disconnected", attempt, message)
+      options.log?.info?.("event stream disconnected", { attempt, error: message })
+      setConnection({ status: "reconnecting", attempt, error: message })
+
+      if (options.reconnect) {
+        const next = await options.reconnect(controller.signal).catch((error) => {
+          if (!controller.signal.aborted)
+            options.log?.info?.("server resolution failed", { attempt, error: errorMessage(error) })
+        })
+        if (abort.signal.aborted || controller.signal.aborted || !started || generation !== active) return
+        if (next) {
+          api = next
+          if (attempt === 1) continue
+        }
+      }
+      await wait(reconnectDelay, controller.signal)
+    }
+  }
+
+  function start() {
+    if (started) return run
+    started = true
+    const active = ++generation
+    const previous = run
+    const current = (async () => {
+      if (previous) await previous
+      await runStream(active)
+    })().finally(() => {
+      if (run !== current) return
+      run = undefined
+    })
+    run = current
+    return run
+  }
+
+  function stop() {
+    started = false
+    generation += 1
+    stream?.abort()
+  }
+
+  onMount(() => {
+    if (options.pageLifecycle) {
+      const pagehide = () => stop()
+      const pageshow = (event: PageTransitionEvent) => {
+        if (event.persisted) void start()
+      }
+      window.addEventListener("pagehide", pagehide)
+      window.addEventListener("pageshow", pageshow)
+      onCleanup(() => {
+        window.removeEventListener("pagehide", pagehide)
+        window.removeEventListener("pageshow", pageshow)
+      })
+    }
+    void start()
+  })
+
+  onCleanup(() => {
+    stop()
+    abort.abort()
+    if (flushTimer) clearTimeout(flushTimer)
+    pending = []
+  })
+
+  return {
+    status: () => connection.status,
+    attempt: () => connection.attempt,
+    error: () => connection.error,
+    internal: {
+      history: () => history.slice(),
+    },
+  }
+}
+
+function errorMessage(error: unknown) {
+  if (error === undefined) return undefined
+  if (error instanceof Error) return error.message
+  return String(error)
+}
+
+function wait(delay: number, signal: AbortSignal) {
+  return new Promise<void>((resolve) => {
+    const timer = setTimeout(done, delay)
+    signal.addEventListener("abort", done, { once: true })
+    function done() {
+      clearTimeout(timer)
+      signal.removeEventListener("abort", done)
+      resolve()
+    }
+  })
+}

packages/client/src/solid/index.ts

@@ -0,0 +1,2 @@
+export * from "./data"
+export * from "./connection"

packages/client/test/effect.test.ts

@@ -136,8 +136,10 @@ test("event.subscribe terminates on Effect protocol decode failures", async () =
 
 test("session methods retain decoded Effect inputs and outputs", async () => {
   const logQueries: Array<Record<string, string>> = []
+  const requests: Array<{ method: string; url: string }> = []
   const httpClient = HttpClient.make((request) => {
     const url = request.url
+    requests.push({ method: request.method, url })
     if (url.includes("/log")) {
       logQueries.push(Object.fromEntries(request.urlParams.params))
       return Effect.succeed(
@@ -183,6 +185,7 @@ test("session methods retain decoded Effect inputs and outputs", async () => {
     const created = yield* client.session.create({
       location: Location.Ref.make({ directory: AbsolutePath.make("/tmp/project") }),
     })
+    yield* client.session.view({ sessionID: Session.ID.make("ses_test") })
     yield* client.session.switchAgent({ sessionID: Session.ID.make("ses_test"), agent: Agent.ID.make("build") })
     yield* client.session.switchModel({
       sessionID: Session.ID.make("ses_test"),
@@ -207,7 +210,11 @@ test("session methods retain decoded Effect inputs and outputs", async () => {
     return { page, active, created, admitted, context, log, message }
   }).pipe(Effect.provideService(HttpClient.HttpClient, httpClient), Effect.runPromise)
 
-  expect(DateTime.toEpochMillis(result.page.data[0].time.created)).toBe(1_717_171_717_000)
+  const listed = result.page.data[0]
+  if (!listed?.time.idle || !listed.time.viewed) throw new Error("Expected attention times")
+  expect(DateTime.toEpochMillis(listed.time.created)).toBe(1_717_171_717_000)
+  expect(DateTime.toEpochMillis(listed.time.idle)).toBe(1_717_171_717_002)
+  expect(DateTime.toEpochMillis(listed.time.viewed)).toBe(1_717_171_717_001)
   expect(result.active).toEqual({ ses_test: { type: "running" } })
   expect(Object.getPrototypeOf(result.page.data[0])).toBe(Object.prototype)
   expect(Object.getPrototypeOf(result.created)).toBe(Object.prototype)
@@ -217,11 +224,10 @@ test("session methods retain decoded Effect inputs and outputs", async () => {
   expect(DateTime.toEpochMillis(result.admitted.timeCreated)).toBe(1_717_171_717_000)
   expect(result.context).toEqual([])
   expect(logQueries[0]).toEqual({ after: "0" })
+  expect(requests).toContainEqual({ method: "POST", url: "http://localhost:3000/api/session/ses_test/view" })
   const logged = Array.from(result.log)
   expect(logged.map((item) => item.type)).toEqual(["session.model.selected", "log.synced"])
-  expect(logged[0]?.type === "session.model.selected" && DateTime.toEpochMillis(logged[0].created)).toBe(
-    1_717_171_717_000,
-  )
+  expect(logged[0]?.type === "session.model.selected" && logged[0].created).toBe(1_717_171_717_000)
   expect(logged.at(-1)).toEqual(synced)
   expect(result.message).toEqual(expect.objectContaining({ id: "msg_model", type: "model-switched" }))
 })
@@ -260,6 +266,8 @@ const session = {
     time: {
       created: 1_717_171_717_000,
       updated: 1_717_171_717_000,
+      idle: 1_717_171_717_002,
+      viewed: 1_717_171_717_001,
     },
     title: "Test",
     location: { directory: "/tmp/project" },

packages/client/test/promise.test.ts

@@ -539,6 +539,7 @@ test("session methods use the public HTTP contract", async () => {
   const page = await client.session.list({ limit: 10, order: "desc", parentID: null })
   const active = await client.session.active()
   const created = await client.session.create({ location: { directory: "/tmp/project" } })
+  await client.session.view({ sessionID: "ses_test" })
   await client.session.switchAgent({ sessionID: "ses_test", agent: "build" })
   await client.session.switchModel({
     sessionID: "ses_test",
@@ -565,6 +566,7 @@ test("session methods use the public HTTP contract", async () => {
   const message = await client.session.message({ sessionID: "ses_test", messageID: "msg_model" })
 
   expect(page.cursor.next).toBe("next")
+  expect(page.data[0].time).toMatchObject({ idle: 1_717_171_717_002, viewed: 1_717_171_717_001 })
   expect(active).toEqual({ ses_test: { type: "running" } })
   expect(created.id).toBe("ses_test")
   expect(admitted.id).toBe("msg_test")
@@ -577,6 +579,7 @@ test("session methods use the public HTTP contract", async () => {
     ["GET", "http://localhost:3000/api/session?limit=10&order=desc&parentID=null"],
     ["GET", "http://localhost:3000/api/session/active"],
     ["POST", "http://localhost:3000/api/session"],
+    ["POST", "http://localhost:3000/api/session/ses_test/view"],
     ["POST", "http://localhost:3000/api/session/ses_test/agent"],
     ["POST", "http://localhost:3000/api/session/ses_test/model"],
     ["POST", "http://localhost:3000/api/session/ses_test/prompt"],
@@ -651,6 +654,8 @@ const session = {
     time: {
       created: 1_717_171_717_000,
       updated: 1_717_171_717_000,
+      idle: 1_717_171_717_002,
+      viewed: 1_717_171_717_001,
     },
     title: "Test",
     location: { directory: "/tmp/project" },

packages/core/schema.json

@@ -1,8 +1,8 @@
 {
   "version": "7",
   "dialect": "sqlite",
-  "id": "dcde8e6b-4bf4-4f6b-b2be-4030c2c3e936",
-  "prevIds": ["5c1aa56b-c3ee-4283-9a84-c0bf626dc604"],
+  "id": "94b6c496-ad84-426f-9d5d-3e1ac3ebfb56",
+  "prevIds": ["dcde8e6b-4bf4-4f6b-b2be-4030c2c3e936"],
   "ddl": [
     {
       "name": "account_state",
@@ -1350,6 +1350,26 @@
       "entityType": "columns",
       "table": "session_v2"
     },
+    {
+      "type": "integer",
+      "notNull": false,
+      "autoincrement": false,
+      "default": null,
+      "generated": null,
+      "name": "time_idle",
+      "entityType": "columns",
+      "table": "session_v2"
+    },
+    {
+      "type": "integer",
+      "notNull": false,
+      "autoincrement": false,
+      "default": null,
+      "generated": null,
+      "name": "time_viewed",
+      "entityType": "columns",
+      "table": "session_v2"
+    },
     {
       "type": "integer",
       "notNull": false,

packages/core/src/database/migration.gen.ts

@@ -43,6 +43,7 @@ import m40 from "./migration/20260808023530_workspace_domain.js"
 import m41 from "./migration/20260811161259_execution_claim_attempts.js"
 import m42 from "./migration/20260812181746_session_inbox.js"
 import m43 from "./migration/20260812213948_worktree.js"
+import m44 from "./migration/20260815182818_session_viewed_state.js"
 
 export const migrations = [
   m00,
@@ -89,4 +90,5 @@ export const migrations = [
   m41,
   m42,
   m43,
+  m44,
 ] satisfies DatabaseMigration.Migration[]

packages/core/src/database/migration/20260815182818_session_viewed_state.ts

@@ -0,0 +1,14 @@
+import { Effect } from "effect"
+import type { DatabaseMigration } from "../migration.js"
+
+const migration: DatabaseMigration.Migration = {
+  id: "20260815182818_session_viewed_state",
+  up(tx) {
+    return Effect.gen(function* () {
+      yield* tx.run(`ALTER TABLE \`session_v2\` ADD \`time_idle\` integer;`)
+      yield* tx.run(`ALTER TABLE \`session_v2\` ADD \`time_viewed\` integer;`)
+    })
+  },
+}
+
+export default migration

packages/core/src/database/schema.gen.ts

@@ -209,6 +209,8 @@ const schema: Omit<DatabaseMigration.Migration, "id"> = {
           \`model\` text,
           \`time_created\` integer NOT NULL,
           \`time_updated\` integer NOT NULL,
+          \`time_idle\` integer,
+          \`time_viewed\` integer,
           \`time_compacting\` integer,
           \`time_archived\` integer,
           \`time_suspended\` integer,

packages/core/src/plugin/provider.ts

@@ -15,8 +15,10 @@ import { GoogleVertexPlugin } from "./provider/google-vertex.js"
 import { GroqPlugin } from "./provider/groq.js"
 import { KiloPlugin } from "./provider/kilo.js"
 import { LLMGatewayPlugin } from "./provider/llmgateway.js"
+import { LMStudioPlugin } from "./provider/lmstudio.js"
 import { MistralPlugin } from "./provider/mistral.js"
 import { NvidiaPlugin } from "./provider/nvidia.js"
+import { OllamaPlugin } from "./provider/ollama.js"
 import { OpenAIPlugin } from "./provider/openai.js"
 import { SnowflakeCortexPlugin } from "./provider/snowflake-cortex.js"
 import { OpenAICompatiblePlugin } from "./provider/openai-compatible.js"
@@ -27,6 +29,7 @@ import { SapAICorePlugin } from "./provider/sap-ai-core.js"
 import { TogetherAIPlugin } from "./provider/togetherai.js"
 import { VercelPlugin } from "./provider/vercel.js"
 import { VenicePlugin } from "./provider/venice.js"
+import { VLLMPlugin } from "./provider/vllm.js"
 import { XAIPlugin } from "./provider/xai.js"
 import { ZenmuxPlugin } from "./provider/zenmux.js"
 import type { PluginInternal } from "./internal.js"
@@ -48,8 +51,10 @@ export const ProviderPlugins: PluginInternal.InternalPlugin[] = [
   GroqPlugin,
   KiloPlugin,
   LLMGatewayPlugin,
+  LMStudioPlugin,
   MistralPlugin,
   NvidiaPlugin,
+  OllamaPlugin,
   OpencodePlugin,
   SnowflakeCortexPlugin,
   OpenAICompatiblePlugin,
@@ -60,6 +65,7 @@ export const ProviderPlugins: PluginInternal.InternalPlugin[] = [
   TogetherAIPlugin,
   VercelPlugin,
   VenicePlugin,
+  VLLMPlugin,
   XAIPlugin,
   ZenmuxPlugin,
   DynamicProviderPlugin,

packages/core/src/plugin/provider/lmstudio.ts

@@ -0,0 +1,174 @@
+import { define } from "@opencode-ai/plugin/effect/plugin"
+import { Document, type Entry } from "@opencode-ai/schema/config"
+import { Duration, Effect, Schedule, Schema, Semaphore, Stream } from "effect"
+import { HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { Config } from "../../config.js"
+import { Model } from "../../model.js"
+import { Provider } from "../../provider.js"
+import type { PluginInternal } from "../internal.js"
+
+const providerID = "lmstudio"
+
+const RemoteModel = Schema.Struct({
+  type: Schema.Literals(["llm", "embedding"]),
+  key: Schema.String,
+  display_name: Schema.String,
+  architecture: Schema.NullOr(Schema.String).pipe(Schema.optional),
+  loaded_instances: Schema.Array(
+    Schema.Struct({
+      config: Schema.Struct({ context_length: Schema.Int }),
+    }),
+  ),
+  max_context_length: Schema.Int,
+  capabilities: Schema.Struct({
+    vision: Schema.Boolean,
+    trained_for_tool_use: Schema.Boolean,
+  }).pipe(Schema.optional),
+})
+
+const Response = Schema.Struct({ models: Schema.Array(RemoteModel) })
+const discovery = new Map<string, { checked: number; apiKey?: string; models?: (typeof RemoteModel.Type)[] }>()
+const discoveryLock = Semaphore.makeUnsafe(1)
+
+export function make(origin = "http://127.0.0.1:1234", interval: Duration.Input = "30 seconds") {
+  return define({
+    id: "opencode.provider.lmstudio",
+    effect: Effect.fn(function* (ctx) {
+      const http = HttpClient.filterStatusOk(yield* HttpClient.HttpClient)
+      const config = yield* Config.Service
+      const source = { current: configured(yield* config.entries(), origin) }
+      const loaded = { models: [] as (typeof RemoteModel.Type)[], hash: "[]" }
+
+      yield* ctx.integration.transform((integrations) => {
+        if (loaded.models.length === 0) return
+        integrations.remove(providerID)
+      })
+
+      yield* ctx.catalog.transform((catalog) => {
+        if (loaded.models.length === 0) return
+        for (const model of catalog.provider.get(providerID)?.models.values() ?? []) {
+          catalog.model.remove(providerID, model.id)
+        }
+        catalog.provider.update(providerID, (provider) => {
+          provider.name = "LM Studio"
+          provider.activation = "enabled"
+          provider.package = "@opencode-ai/ai/providers/openai-compatible"
+          provider.settings = {
+            baseURL: source.current.baseURL,
+            provider: providerID,
+            apiKey: source.current.apiKey ?? "",
+          }
+          provider.integrationID = undefined
+        })
+        for (const item of loaded.models) {
+          catalog.model.update(providerID, item.key, (model) => {
+            model.modelID = Model.ID.make(item.key)
+            model.name = item.display_name || item.key
+            model.family = item.architecture ? Model.Family.make(item.architecture) : undefined
+            model.capabilities = {
+              tools: item.capabilities?.trained_for_tool_use ?? false,
+              input: ["text", ...(item.capabilities?.vision ? ["image"] : [])],
+              output: ["text"],
+            }
+            model.limit = {
+              context:
+                item.loaded_instances.length === 0
+                  ? item.max_context_length
+                  : Math.min(...item.loaded_instances.map((instance) => instance.config.context_length)),
+              output: 0,
+            }
+          })
+        }
+      })
+
+      const discover = Effect.fn("LMStudioPlugin.discover")(function* () {
+        const current = source.current
+        if (!current.endpoint) return undefined
+        return yield* discoveryLock.withPermit(
+          Effect.gen(function* () {
+            const cached = discovery.get(current.endpoint)
+            if (cached && cached.apiKey === current.apiKey && Date.now() - cached.checked < Duration.toMillis(interval))
+              return { source: current, models: cached.models }
+            discovery.set(current.endpoint, {
+              checked: Date.now(),
+              apiKey: current.apiKey,
+              models: cached && cached.apiKey === current.apiKey ? cached.models : undefined,
+            })
+            const request = current.apiKey
+              ? HttpClientRequest.get(current.endpoint).pipe(
+                  HttpClientRequest.acceptJson,
+                  HttpClientRequest.bearerToken(current.apiKey),
+                )
+              : HttpClientRequest.get(current.endpoint).pipe(HttpClientRequest.acceptJson)
+            const response = yield* http
+              .execute(request)
+              .pipe(Effect.flatMap(HttpClientResponse.schemaBodyJson(Response)), Effect.timeout("1 second"))
+            const models = response.models
+              .filter((model) => model.type === "llm" && model.key.length > 0)
+              .toSorted((a, b) => a.key.localeCompare(b.key))
+            discovery.set(current.endpoint, { checked: Date.now(), apiKey: current.apiKey, models })
+            return { source: current, models }
+          }),
+        )
+      })
+
+      const refresh = Effect.fn("LMStudioPlugin.refresh")(function* () {
+        const result = yield* discover()
+        if (!result?.models || result.source !== source.current) return
+        const hash = JSON.stringify(result.models)
+        if (hash === loaded.hash) return
+        loaded.models = result.models
+        loaded.hash = hash
+        yield* ctx.integration.reload()
+        yield* ctx.catalog.reload()
+      })
+
+      // Keep the last successful inventory through transient outages instead of flickering model availability.
+      yield* refresh().pipe(Effect.ignore, Effect.repeat(Schedule.spaced(interval)), Effect.forkScoped)
+      const reload = Effect.fn("LMStudioPlugin.reload")(function* () {
+        const next = configured(yield* config.entries(), origin)
+        if (
+          next.baseURL === source.current.baseURL &&
+          next.apiKey === source.current.apiKey &&
+          next.endpoint === source.current.endpoint
+        )
+          return
+        source.current = next
+        loaded.models = []
+        loaded.hash = "[]"
+        yield* ctx.integration.reload()
+        yield* ctx.catalog.reload()
+        yield* refresh().pipe(Effect.ignore)
+      })
+      yield* ctx.event.subscribe().pipe(
+        Stream.filter((event) => event.type === "config.updated"),
+        Stream.runForEach(reload),
+        Effect.forkScoped({ startImmediately: true }),
+      )
+    }),
+  } satisfies PluginInternal.InternalPlugin)
+}
+
+export const LMStudioPlugin = make()
+
+function configured(entries: readonly Entry[], origin: string) {
+  const settings = entries
+    .filter((entry): entry is Document => entry.type === "document")
+    .flatMap((entry) => {
+      const settings = entry.info.providers?.[providerID]?.settings
+      return settings ? [settings] : []
+    })
+    .reduce<Provider.Settings | undefined>((result, item) => Provider.mergeOverlay(result, item), undefined)
+  const baseURL = (
+    typeof settings?.baseURL === "string" ? settings.baseURL : `${origin.replace(/\/+$/, "")}/v1`
+  ).replace(/\/+$/, "")
+  const apiKey = typeof settings?.apiKey === "string" ? settings.apiKey : undefined
+  if (!URL.canParse(baseURL)) return { baseURL, apiKey }
+  const url = new URL(baseURL)
+  if (url.protocol !== "http:" && url.protocol !== "https:") return { baseURL, apiKey }
+  const prefix = url.pathname.endsWith("/v1") ? url.pathname.slice(0, -3) : url.pathname.replace(/\/+$/, "")
+  url.pathname = `${prefix}/api/v1/models`
+  url.search = ""
+  url.hash = ""
+  return { baseURL, apiKey, endpoint: url.toString() }
+}

packages/core/src/plugin/provider/ollama.ts

@@ -0,0 +1,233 @@
+import { define } from "@opencode-ai/plugin/effect/plugin"
+import { Document, type Entry } from "@opencode-ai/schema/config"
+import { Duration, Effect, Schedule, Schema, Semaphore, Stream } from "effect"
+import { HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { Config } from "../../config.js"
+import { Model } from "../../model.js"
+import { Provider } from "../../provider.js"
+import type { PluginInternal } from "../internal.js"
+
+const providerID = "ollama"
+
+const Details = Schema.Struct({
+  parent_model: Schema.String.pipe(Schema.optional),
+  format: Schema.String,
+  family: Schema.String,
+  families: Schema.Array(Schema.String).pipe(Schema.optional),
+  parameter_size: Schema.String,
+  quantization_level: Schema.String,
+})
+
+const RemoteModel = Schema.Struct({
+  name: Schema.String,
+  model: Schema.String,
+  remote_model: Schema.String.pipe(Schema.optional),
+  remote_host: Schema.String.pipe(Schema.optional),
+  modified_at: Schema.String,
+  size: Schema.Int,
+  digest: Schema.String,
+  details: Details,
+})
+
+const TagsResponse = Schema.Struct({ models: Schema.Array(RemoteModel) })
+const ShowRequest = Schema.Struct({ model: Schema.String })
+const ShowResponse = Schema.Struct({
+  parameters: Schema.String.pipe(Schema.optional),
+  license: Schema.String.pipe(Schema.optional),
+  modified_at: Schema.String.pipe(Schema.optional),
+  details: Details.pipe(Schema.optional),
+  template: Schema.String.pipe(Schema.optional),
+  capabilities: Schema.Array(Schema.String).pipe(Schema.optional),
+  model_info: Schema.Record(Schema.String, Schema.Unknown).pipe(Schema.optional),
+})
+
+type DiscoveredModel = typeof RemoteModel.Type & { show: typeof ShowResponse.Type }
+type Discovery = {
+  checked: number
+  apiKey?: string
+  models?: DiscoveredModel[]
+  shows: Map<string, { digest: string; info: typeof ShowResponse.Type }>
+}
+
+const discovery = new Map<string, Discovery>()
+const discoveryLock = Semaphore.makeUnsafe(1)
+
+export function make(origin = "http://127.0.0.1:11434", interval: Duration.Input = "30 seconds") {
+  return define({
+    id: "opencode.provider.ollama",
+    effect: Effect.fn(function* (ctx) {
+      const http = HttpClient.filterStatusOk(yield* HttpClient.HttpClient)
+      const config = yield* Config.Service
+      const source = { current: configured(yield* config.entries(), origin) }
+      const loaded = { models: [] as DiscoveredModel[], hash: "[]" }
+
+      yield* ctx.integration.transform((integrations) => {
+        if (loaded.models.length === 0) return
+        integrations.remove(providerID)
+      })
+
+      yield* ctx.catalog.transform((catalog) => {
+        if (loaded.models.length === 0) return
+        for (const model of catalog.provider.get(providerID)?.models.values() ?? []) {
+          catalog.model.remove(providerID, model.id)
+        }
+        catalog.provider.update(providerID, (provider) => {
+          provider.name = "Ollama"
+          provider.activation = "enabled"
+          provider.package = "@opencode-ai/ai/providers/openai-compatible"
+          provider.settings = {
+            baseURL: source.current.baseURL,
+            provider: providerID,
+            apiKey: source.current.apiKey ?? "",
+          }
+          provider.integrationID = undefined
+        })
+        for (const item of loaded.models) {
+          catalog.model.update(providerID, item.model, (model) => {
+            model.modelID = Model.ID.make(item.model)
+            model.name = item.name || item.model
+            model.family = item.show.details?.family
+              ? Model.Family.make(item.show.details.family)
+              : item.details.family
+                ? Model.Family.make(item.details.family)
+                : undefined
+            model.capabilities = {
+              tools: item.show.capabilities?.includes("tools") ?? false,
+              input: ["text", ...(item.show.capabilities?.includes("vision") ? ["image"] : [])],
+              output: ["text"],
+            }
+            model.limit = {
+              context:
+                Object.entries(item.show.model_info ?? {}).flatMap(([key, value]) =>
+                  key.endsWith(".context_length") && typeof value === "number" && value > 0 ? [value] : [],
+                )[0] ?? 0,
+              output: 0,
+            }
+          })
+        }
+      })
+
+      const discover = Effect.fn("OllamaPlugin.discover")(function* () {
+        const current = source.current
+        if (!current.tagsEndpoint || !current.showEndpoint) return undefined
+        return yield* discoveryLock.withPermit(
+          Effect.gen(function* () {
+            const cached = discovery.get(current.tagsEndpoint)
+            if (cached && cached.apiKey === current.apiKey && Date.now() - cached.checked < Duration.toMillis(interval))
+              return { source: current, models: cached.models }
+            const previous: Discovery =
+              cached && cached.apiKey === current.apiKey
+                ? cached
+                : { checked: 0, apiKey: current.apiKey, shows: new Map() }
+            discovery.set(current.tagsEndpoint, { ...previous, checked: Date.now(), apiKey: current.apiKey })
+            const tagsRequest = current.apiKey
+              ? HttpClientRequest.get(current.tagsEndpoint).pipe(
+                  HttpClientRequest.acceptJson,
+                  HttpClientRequest.bearerToken(current.apiKey),
+                )
+              : HttpClientRequest.get(current.tagsEndpoint).pipe(HttpClientRequest.acceptJson)
+            const response = yield* http
+              .execute(tagsRequest)
+              .pipe(Effect.flatMap(HttpClientResponse.schemaBodyJson(TagsResponse)), Effect.timeout("1 second"))
+            const summaries = response.models
+              .filter((model) => model.model.length > 0)
+              .toSorted((a, b) => a.model.localeCompare(b.model))
+            const shows = new Map<string, { digest: string; info: typeof ShowResponse.Type }>()
+            const models = yield* Effect.forEach(
+              summaries,
+              (model) =>
+                Effect.gen(function* () {
+                  const saved = previous.shows.get(model.model)
+                  const info =
+                    saved?.digest === model.digest
+                      ? saved.info
+                      : yield* HttpClientRequest.post(current.showEndpoint).pipe(
+                          HttpClientRequest.acceptJson,
+                          current.apiKey ? HttpClientRequest.bearerToken(current.apiKey) : (request) => request,
+                          HttpClientRequest.schemaBodyJson(ShowRequest)({ model: model.model }),
+                          Effect.flatMap(http.execute),
+                          Effect.flatMap(HttpClientResponse.schemaBodyJson(ShowResponse)),
+                          Effect.timeout("1 second"),
+                        )
+                  shows.set(model.model, { digest: model.digest, info })
+                  return { ...model, show: info }
+                }).pipe(Effect.catch(() => Effect.succeed(undefined))),
+              { concurrency: 4 },
+            )
+            const filtered = models.filter(
+              (model): model is DiscoveredModel =>
+                model !== undefined && (model.show.capabilities?.includes("completion") ?? false),
+            )
+            discovery.set(current.tagsEndpoint, {
+              checked: Date.now(),
+              apiKey: current.apiKey,
+              models: filtered,
+              shows,
+            })
+            return { source: current, models: filtered }
+          }),
+        )
+      })
+
+      const refresh = Effect.fn("OllamaPlugin.refresh")(function* () {
+        const result = yield* discover()
+        if (!result?.models || result.source !== source.current) return
+        const hash = JSON.stringify(result.models)
+        if (hash === loaded.hash) return
+        loaded.models = result.models
+        loaded.hash = hash
+        yield* ctx.integration.reload()
+        yield* ctx.catalog.reload()
+      })
+
+      // Keep the last successful inventory through transient outages instead of flickering model availability.
+      yield* refresh().pipe(Effect.ignore, Effect.repeat(Schedule.spaced(interval)), Effect.forkScoped)
+      const reload = Effect.fn("OllamaPlugin.reload")(function* () {
+        const next = configured(yield* config.entries(), origin)
+        if (
+          next.baseURL === source.current.baseURL &&
+          next.apiKey === source.current.apiKey &&
+          next.tagsEndpoint === source.current.tagsEndpoint
+        )
+          return
+        source.current = next
+        loaded.models = []
+        loaded.hash = "[]"
+        yield* ctx.integration.reload()
+        yield* ctx.catalog.reload()
+        yield* refresh().pipe(Effect.ignore)
+      })
+      yield* ctx.event.subscribe().pipe(
+        Stream.filter((event) => event.type === "config.updated"),
+        Stream.runForEach(reload),
+        Effect.forkScoped({ startImmediately: true }),
+      )
+    }),
+  } satisfies PluginInternal.InternalPlugin)
+}
+
+export const OllamaPlugin = make()
+
+function configured(entries: readonly Entry[], origin: string) {
+  const settings = entries
+    .filter((entry): entry is Document => entry.type === "document")
+    .flatMap((entry) => {
+      const settings = entry.info.providers?.[providerID]?.settings
+      return settings ? [settings] : []
+    })
+    .reduce<Provider.Settings | undefined>((result, item) => Provider.mergeOverlay(result, item), undefined)
+  const baseURL = (
+    typeof settings?.baseURL === "string" ? settings.baseURL : `${origin.replace(/\/+$/, "")}/v1`
+  ).replace(/\/+$/, "")
+  const apiKey = typeof settings?.apiKey === "string" ? settings.apiKey : undefined
+  if (!URL.canParse(baseURL)) return { baseURL, apiKey }
+  const url = new URL(baseURL)
+  if (url.protocol !== "http:" && url.protocol !== "https:") return { baseURL, apiKey }
+  const prefix = url.pathname.endsWith("/v1") ? url.pathname.slice(0, -3) : url.pathname.replace(/\/+$/, "")
+  url.pathname = `${prefix}/api/tags`
+  url.search = ""
+  url.hash = ""
+  const tagsEndpoint = url.toString()
+  url.pathname = `${prefix}/api/show`
+  return { baseURL, apiKey, tagsEndpoint, showEndpoint: url.toString() }
+}

packages/core/src/plugin/provider/vllm.ts

@@ -0,0 +1,162 @@
+import { define } from "@opencode-ai/plugin/effect/plugin"
+import { Document, type Entry } from "@opencode-ai/schema/config"
+import { Duration, Effect, Schedule, Schema, Semaphore, Stream } from "effect"
+import { HttpClient, HttpClientRequest, HttpClientResponse } from "effect/unstable/http"
+import { Config } from "../../config.js"
+import { Model } from "../../model.js"
+import { Provider } from "../../provider.js"
+import type { PluginInternal } from "../internal.js"
+
+const providerID = "vllm"
+
+const RemoteModel = Schema.Struct({
+  id: Schema.String,
+  owned_by: Schema.String,
+  max_model_len: Schema.NullOr(Schema.Int),
+})
+
+const Response = Schema.Struct({ data: Schema.Array(RemoteModel) })
+const discovery = new Map<string, { checked: number; apiKey?: string; models?: (typeof RemoteModel.Type)[] }>()
+const discoveryLock = Semaphore.makeUnsafe(1)
+
+export function make(origin = "http://127.0.0.1:8000", interval: Duration.Input = "30 seconds") {
+  return define({
+    id: "opencode.provider.vllm",
+    effect: Effect.fn(function* (ctx) {
+      const http = HttpClient.filterStatusOk(yield* HttpClient.HttpClient)
+      const config = yield* Config.Service
+      const source = { current: configured(yield* config.entries(), origin) }
+      const loaded = { models: [] as (typeof RemoteModel.Type)[], hash: "[]" }
+
+      yield* ctx.integration.transform((integrations) => {
+        if (loaded.models.length === 0) return
+        integrations.remove(providerID)
+      })
+
+      yield* ctx.catalog.transform((catalog) => {
+        if (loaded.models.length === 0) return
+        for (const model of catalog.provider.get(providerID)?.models.values() ?? []) {
+          catalog.model.remove(providerID, model.id)
+        }
+        catalog.provider.update(providerID, (provider) => {
+          provider.name = "vLLM"
+          provider.package = "@opencode-ai/ai/providers/openai-compatible"
+          provider.settings = {
+            baseURL: source.current.baseURL,
+            provider: providerID,
+            apiKey: source.current.apiKey ?? "",
+          }
+          provider.integrationID = undefined
+          provider.activation = "enabled"
+        })
+        for (const item of loaded.models) {
+          catalog.model.update(providerID, item.id, (model) => {
+            model.modelID = Model.ID.make(item.id)
+            model.name = item.id
+            // Tool calling depends on vLLM server flags and parsers that model discovery does not report.
+            model.capabilities = { tools: false, input: ["text"], output: ["text"] }
+            model.limit = { context: item.max_model_len ?? 0, output: 0 }
+          })
+        }
+      })
+
+      const discover = Effect.fn("VLLMPlugin.discover")(function* () {
+        const current = source.current
+        if (!current.healthEndpoint || !current.modelsEndpoint) return undefined
+        return yield* discoveryLock.withPermit(
+          Effect.gen(function* () {
+            const endpoint = `${current.healthEndpoint}\n${current.modelsEndpoint}`
+            const cached = discovery.get(endpoint)
+            if (cached && cached.apiKey === current.apiKey && Date.now() - cached.checked < Duration.toMillis(interval))
+              return { source: current, models: cached.models }
+            discovery.set(endpoint, {
+              checked: Date.now(),
+              apiKey: current.apiKey,
+              models: cached && cached.apiKey === current.apiKey ? cached.models : undefined,
+            })
+            const request = (endpoint: string) =>
+              current.apiKey
+                ? HttpClientRequest.get(endpoint).pipe(
+                    HttpClientRequest.acceptJson,
+                    HttpClientRequest.bearerToken(current.apiKey),
+                  )
+                : HttpClientRequest.get(endpoint).pipe(HttpClientRequest.acceptJson)
+            yield* http.execute(request(current.healthEndpoint)).pipe(Effect.timeout("1 second"))
+            const response = yield* http
+              .execute(request(current.modelsEndpoint))
+              .pipe(Effect.flatMap(HttpClientResponse.schemaBodyJson(Response)), Effect.timeout("1 second"))
+            const models = response.data
+              .filter((model) => model.owned_by === providerID && model.id.length > 0)
+              .toSorted((a, b) => a.id.localeCompare(b.id))
+            discovery.set(endpoint, { checked: Date.now(), apiKey: current.apiKey, models })
+            return { source: current, models }
+          }),
+        )
+      })
+
+      const refresh = Effect.fn("VLLMPlugin.refresh")(function* () {
+        const result = yield* discover()
+        if (!result?.models || result.source !== source.current) return
+        const hash = JSON.stringify(result.models)
+        if (hash === loaded.hash) return
+        loaded.models = result.models
+        loaded.hash = hash
+        yield* ctx.integration.reload()
+        yield* ctx.catalog.reload()
+      })
+
+      // Keep the last successful inventory through transient outages instead of flickering model availability.
+      yield* refresh().pipe(Effect.ignore, Effect.repeat(Schedule.spaced(interval)), Effect.forkScoped)
+      const reload = Effect.fn("VLLMPlugin.reload")(function* () {
+        const next = configured(yield* config.entries(), origin)
+        if (
+          next.baseURL === source.current.baseURL &&
+          next.apiKey === source.current.apiKey &&
+          next.healthEndpoint === source.current.healthEndpoint &&
+          next.modelsEndpoint === source.current.modelsEndpoint
+        )
+          return
+        source.current = next
+        loaded.models = []
+        loaded.hash = "[]"
+        yield* ctx.integration.reload()
+        yield* ctx.catalog.reload()
+        yield* refresh().pipe(Effect.ignore)
+      })
+      yield* ctx.event.subscribe().pipe(
+        Stream.filter((event) => event.type === "config.updated"),
+        Stream.runForEach(reload),
+        Effect.forkScoped({ startImmediately: true }),
+      )
+    }),
+  } satisfies PluginInternal.InternalPlugin)
+}
+
+export const VLLMPlugin = make()
+
+function configured(entries: readonly Entry[], origin: string) {
+  const settings = entries
+    .filter((entry): entry is Document => entry.type === "document")
+    .flatMap((entry) => {
+      const settings = entry.info.providers?.[providerID]?.settings
+      return settings ? [settings] : []
+    })
+    .reduce<Provider.Settings | undefined>((result, item) => Provider.mergeOverlay(result, item), undefined)
+  const baseURL = (
+    typeof settings?.baseURL === "string" ? settings.baseURL : `${origin.replace(/\/+$/, "")}/v1`
+  ).replace(/\/+$/, "")
+  const apiKey = typeof settings?.apiKey === "string" ? settings.apiKey : undefined
+  if (!URL.canParse(baseURL)) return { baseURL, apiKey }
+  const models = new URL(baseURL)
+  if (models.protocol !== "http:" && models.protocol !== "https:") return { baseURL, apiKey }
+  models.pathname = `${models.pathname.replace(/\/+$/, "")}/models`
+  models.search = ""
+  models.hash = ""
+  const health = new URL(baseURL)
+  const path = health.pathname.replace(/\/+$/, "")
+  const prefix = path.endsWith("/v1") ? path.slice(0, -3) : path
+  health.pathname = `${prefix}/health`
+  health.search = ""
+  health.hash = ""
+  return { baseURL, apiKey, healthEndpoint: health.toString(), modelsEndpoint: models.toString() }
+}

packages/core/src/plugin/skill/opencode.md

@@ -29,10 +29,41 @@ V1 documentation and syntax may be consulted only when the user explicitly
 asks about V1 or when needed as migration input. Outputs and recommendations
 must still use V2 unless the user specifically requests a V1 result.
 
-## [Configuration](https://opencode.ai/v2/docs/config)
+## [CLI](https://opencode.ai/v2/docs/cli)
 
-OpenCode configuration uses JSON or JSONC. Include the published schema so the
-user's editor can validate fields and provide autocomplete:
+For questions about the terminal interface, command-line invocation, `run`,
+`mini`, terminal providers, or other CLI behavior, fetch the
+[CLI guide](https://opencode.ai/v2/docs/cli) and the relevant page linked from
+that section.
+
+CLI and TUI preferences are separate from OpenCode's server and project
+configuration. They live in the global `~/.config/opencode/cli.json`, or
+`$XDG_CONFIG_HOME/opencode/cli.json` when `XDG_CONFIG_HOME` is set. There is no
+project-local CLI configuration. Most preferences can also be changed from the
+TUI by pressing `Ctrl+P` and selecting **Open settings**.
+
+Fetch the full [CLI configuration guide](https://opencode.ai/v2/docs/cli/config)
+before editing `cli.json`. It covers terminal-only settings such as themes,
+keybindings, terminal plugins, scrolling, attention alerts, diff presentation,
+and terminal integration. Do not put these settings in `opencode.json(c)`.
+
+### [Keybinds](https://opencode.ai/v2/docs/cli/keybinds)
+
+Configure keybindings under `keybinds` in `cli.json`. The leader key is the
+`keybinds.leader` entry; leader timing is configured separately under
+`leader.timeout`. Bindings can use a string, an array of strings, or an object
+when event behavior such as `preventDefault` is required. Disable a binding
+with `"none"` or `false`.
+
+Never guess a command ID, default binding, or accepted key syntax. Fetch the
+full [keybind reference](https://opencode.ai/v2/docs/cli/keybinds), which lists
+the current IDs and defaults, before answering or editing a binding.
+
+## [OpenCode configuration](https://opencode.ai/v2/docs/config)
+
+OpenCode's server and project configuration uses JSON or JSONC. Include the
+published schema so the user's editor can validate fields and provide
+autocomplete:
 
 ```jsonc
 {
@@ -55,6 +86,10 @@ Common configuration fields include `model`, `default_agent`, `permissions`,
 `agents`, `commands`, `plugins`, `providers`, `mcp`, `skills`, `instructions`,
 `references`, `formatter`, and `lsp`.
 
+This configuration is distinct from `cli.json`. Use the
+[CLI configuration guide](https://opencode.ai/v2/docs/cli/config) for terminal
+preferences, especially themes and keybindings.
+
 Do not guess field names or shapes. Fetch the V2 configuration guide and its
 linked topic guide as the source of truth, and preserve unrelated settings when
 editing an existing file. Keep the published `$schema` URL in configuration

packages/core/src/session.ts

@@ -165,6 +165,7 @@ export interface Interface {
     input: ForkInput,
   ) => Effect.Effect<SessionSchema.Info, NotFoundError | MessageNotFoundError | ForkEmptyError>
   readonly get: (sessionID: SessionSchema.ID) => Effect.Effect<SessionSchema.Info, NotFoundError>
+  readonly view: (input: { sessionID: SessionSchema.ID }) => Effect.Effect<void, NotFoundError>
   readonly remove: (sessionID: SessionSchema.ID) => Effect.Effect<void, NotFoundError>
   readonly messages: (input: {
     sessionID: SessionSchema.ID
@@ -447,6 +448,17 @@ const layer = Layer.effect(
         if (!session) return yield* new NotFoundError({ sessionID })
         return session
       }),
+      view: Effect.fn("Session.view")(function* (input) {
+        const row = yield* db
+          .select({ idle: SessionTable.time_idle, viewed: SessionTable.time_viewed })
+          .from(SessionTable)
+          .where(eq(SessionTable.id, input.sessionID))
+          .get()
+          .pipe(Effect.orDie)
+        if (!row) return yield* new NotFoundError({ sessionID: input.sessionID })
+        if (row.idle === null || (row.viewed !== null && row.viewed >= row.idle)) return
+        yield* bus.publish(SessionEvent.Viewed, { sessionID: input.sessionID })
+      }),
       remove: Effect.fn("Session.remove")(function* (sessionID) {
         const session = yield* result.get(sessionID)
         yield* execution.interrupt(sessionID)

packages/core/src/session/info.ts

@@ -53,6 +53,8 @@ export function fromRow(row: typeof SessionTable.$inferSelect): SessionSchema.In
     time: {
       created: DateTime.makeUnsafe(row.time_created),
       updated: DateTime.makeUnsafe(row.time_updated),
+      idle: row.time_idle === null ? undefined : DateTime.makeUnsafe(row.time_idle),
+      viewed: row.time_viewed === null ? undefined : DateTime.makeUnsafe(row.time_viewed),
       archived: row.time_archived ? DateTime.makeUnsafe(row.time_archived) : undefined,
     },
   })

packages/core/src/session/message-updater.ts

@@ -60,6 +60,7 @@ export function update(adapter: Adapter, event: SessionEvent.DurableEvent) {
     Match.type<SessionEvent.DurableEvent>(),
     Match.discriminatorsExhaustive("type")({
       "session.created": () => Effect.void,
+      "session.viewed": () => Effect.void,
       "session.usage.recorded": () => Effect.void,
       "session.agent.selected": (event) => {
         return Effect.gen(function* () {

packages/core/src/session/projector.ts

@@ -391,6 +391,30 @@ function insertMessage(db: DatabaseService, event: SessionEvent.DurableEvent, me
     .pipe(Effect.orDie)
 }
 
+function projectIdle(
+  db: DatabaseService,
+  event:
+    | typeof SessionEvent.Execution.Succeeded.Type
+    | typeof SessionEvent.Execution.Failed.Type
+    | typeof SessionEvent.Execution.Interrupted.Type,
+) {
+  return Effect.gen(function* () {
+    yield* run(db, event)
+    if (event.type === SessionEvent.Execution.Interrupted.type && event.data.reason === "shutdown") return
+    const time = event.created
+    yield* db
+      .update(SessionTable)
+      .set({
+        // Unread uses a strict timestamp comparison, so every terminal must advance even within one millisecond.
+        time_idle: sql`max(${time}, coalesce(${SessionTable.time_idle} + 1, ${time}))`,
+        time_updated: sql`${SessionTable.time_updated}`,
+      })
+      .where(eq(SessionTable.id, event.data.sessionID))
+      .run()
+      .pipe(Effect.orDie)
+  })
+}
+
 const layer = Layer.effectDiscard(
   Effect.gen(function* () {
     const bus = yield* Bus.Service
@@ -512,6 +536,17 @@ const layer = Layer.effectDiscard(
         .run()
         .pipe(Effect.orDie),
     )
+    yield* bus.project(SessionEvent.Viewed, (event) =>
+      db
+        .update(SessionTable)
+        .set({
+          time_viewed: sql`${SessionTable.time_idle}`,
+          time_updated: sql`${SessionTable.time_updated}`,
+        })
+        .where(eq(SessionTable.id, event.data.sessionID))
+        .run()
+        .pipe(Effect.orDie),
+    )
     yield* bus.project(SessionEvent.UsageRecorded, (event) => applyUsage(db, event.data.sessionID, event.data))
     yield* bus.project(SessionEvent.Forked, (event) => projectFork(db, event))
     yield* bus.project(SessionEvent.InboxDelivered, (event) =>
@@ -580,9 +615,9 @@ const layer = Layer.effectDiscard(
         delivery: event.data.delivery,
       }),
     )
-    yield* bus.project(SessionEvent.Execution.Succeeded, (event) => run(db, event))
-    yield* bus.project(SessionEvent.Execution.Failed, (event) => run(db, event))
-    yield* bus.project(SessionEvent.Execution.Interrupted, (event) => run(db, event))
+    yield* bus.project(SessionEvent.Execution.Succeeded, (event) => projectIdle(db, event))
+    yield* bus.project(SessionEvent.Execution.Failed, (event) => projectIdle(db, event))
+    yield* bus.project(SessionEvent.Execution.Interrupted, (event) => projectIdle(db, event))
     yield* bus.project(SessionEvent.InstructionsUpdated, (event) =>
       Effect.gen(function* () {
         yield* run(db, event)

packages/core/src/session/sql.ts

@@ -56,6 +56,8 @@ export const SessionTable = sqliteTable(
       variant?: string
     }>(),
     ...Timestamps,
+    time_idle: integer(),
+    time_viewed: integer(),
     time_compacting: integer(),
     time_archived: integer(),
     /** The execution claim timestamp (historical column name; see SessionStore.claim). */

packages/core/src/session/transfer.ts

@@ -117,6 +117,10 @@ const layer = Layer.effect(
                       tokens_cache_write: input.data.info.tokens.cache.write,
                       time_created: DateTime.toEpochMillis(input.data.info.time.created),
                       time_updated: DateTime.toEpochMillis(input.data.info.time.updated),
+                      time_idle: input.data.info.time.idle ? DateTime.toEpochMillis(input.data.info.time.idle) : null,
+                      time_viewed: input.data.info.time.viewed
+                        ? DateTime.toEpochMillis(input.data.info.time.viewed)
+                        : null,
                       time_archived: input.data.info.time.archived
                         ? DateTime.toEpochMillis(input.data.info.time.archived)
                         : null,

packages/core/test/database-migration.test.ts

@@ -13,6 +13,7 @@ import { tmpdir } from "./fixture/tmpdir"
 import type { SqlClient } from "effect/unstable/sql/SqlClient"
 import legacyCredentialsMigration from "@opencode-ai/core/database/migration/20260805200742_import_legacy_credentials"
 import worktreeMigration from "@opencode-ai/core/database/migration/20260812213948_worktree"
+import sessionViewedStateMigration from "@opencode-ai/core/database/migration/20260815182818_session_viewed_state"
 import { Global } from "@opencode-ai/util/global"
 
 const run = <A, E>(
@@ -73,6 +74,27 @@ describe("DatabaseMigration", () => {
     )
   })
 
+  test("adds nullable attention state to existing sessions", async () => {
+    await run(
+      Effect.gen(function* () {
+        const db = yield* makeDb
+        yield* db.run(sql`CREATE TABLE session_v2 (id text PRIMARY KEY, title text)`)
+        yield* db.run(sql`INSERT INTO session_v2 (id, title) VALUES ('ses_existing', 'Existing')`)
+
+        yield* DatabaseMigration.applyOnly(db, [sessionViewedStateMigration])
+        yield* DatabaseMigration.applyOnly(db, [sessionViewedStateMigration])
+
+        expect(yield* db.get(sql`SELECT id, title, time_idle, time_viewed FROM session_v2`)).toEqual({
+          id: "ses_existing",
+          title: "Existing",
+          time_idle: null,
+          time_viewed: null,
+        })
+        expect(yield* db.get(sql`SELECT count(*) AS count FROM migration`)).toEqual({ count: 1 })
+      }),
+    )
+  })
+
   test("rejects a non-empty database without a session table", async () => {
     await expect(
       run(

packages/core/test/plugin/provider-lmstudio.test.ts

@@ -0,0 +1,341 @@
+import { Bus } from "@opencode-ai/core/bus"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { Config } from "@opencode-ai/core/config"
+import { Integration } from "@opencode-ai/core/integration"
+import { Model } from "@opencode-ai/core/model"
+import { Plugin } from "@opencode-ai/core/plugin"
+import { PluginHost } from "@opencode-ai/core/plugin/host"
+import { LMStudioPlugin, make } from "@opencode-ai/core/plugin/provider/lmstudio"
+import { ProviderPlugins } from "@opencode-ai/core/plugin/provider"
+import { Provider } from "@opencode-ai/core/provider"
+import { Document, Event, Info } from "@opencode-ai/schema/config"
+import { describe, expect } from "bun:test"
+import { Duration, Effect, Layer, Schema } from "effect"
+import { testEffect } from "../lib/effect"
+import { PluginTestLayer } from "./fixture"
+
+const it = testEffect(Layer.merge(PluginTestLayer, Config.testLayer()))
+const decode = Schema.decodeUnknownSync(Info)
+
+const addPlugin = Effect.fn(function* (origin: string, interval: Duration.Input = "1 hour") {
+  const plugin = yield* Plugin.Service
+  const host = yield* PluginHost.make(plugin)
+  yield* make(origin, interval).effect(host)
+})
+
+function eventually<A>(
+  effect: Effect.Effect<A>,
+  predicate: (value: A) => boolean,
+  remaining = 3000,
+): Effect.Effect<A, Error> {
+  return Effect.gen(function* () {
+    const value = yield* effect
+    if (predicate(value)) return value
+    if (remaining === 0) return yield* Effect.fail(new Error("Timed out waiting for value"))
+    yield* Effect.promise(() => Bun.sleep(1))
+    return yield* eventually(effect, predicate, remaining - 1)
+  })
+}
+
+describe("LMStudioPlugin", () => {
+  it.effect("is registered as a built-in provider plugin", () =>
+    Effect.sync(() => {
+      expect(LMStudioPlugin.id).toBe("opencode.provider.lmstudio")
+      expect(ProviderPlugins.map((item) => item.id)).toContain("opencode.provider.lmstudio")
+    }),
+  )
+
+  it.live("discovers local language models with their capabilities and effective context", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() =>
+        Bun.serve({
+          port: 0,
+          fetch: () =>
+            Response.json({
+              models: [
+                {
+                  type: "llm",
+                  key: "google/gemma-4-26b-a4b",
+                  display_name: "Gemma 4 26B A4B",
+                  architecture: "gemma4",
+                  loaded_instances: [{ config: { context_length: 32_768 } }, { config: { context_length: 16_384 } }],
+                  max_context_length: 262_144,
+                  capabilities: { vision: true, trained_for_tool_use: true },
+                },
+                {
+                  type: "llm",
+                  key: "deepseek-r1",
+                  display_name: "DeepSeek R1",
+                  architecture: "deepseek",
+                  loaded_instances: [],
+                  max_context_length: 131_072,
+                  capabilities: { vision: false, trained_for_tool_use: false },
+                },
+                {
+                  type: "embedding",
+                  key: "nomic-embed",
+                  display_name: "Nomic Embed",
+                  loaded_instances: [],
+                  max_context_length: 2048,
+                },
+              ],
+            }),
+        }),
+      ),
+      (server) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          yield* addPlugin(server.url.origin)
+          const providerID = Provider.ID.make("lmstudio")
+          const gemma = yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("google/gemma-4-26b-a4b")),
+            (model) => model !== undefined,
+          )
+
+          expect(yield* catalog.provider.get(providerID)).toEqual({
+            id: providerID,
+            name: "LM Studio",
+            activation: "enabled",
+            package: "@opencode-ai/ai/providers/openai-compatible",
+            settings: { baseURL: `${server.url.origin}/v1`, provider: "lmstudio", apiKey: "" },
+          })
+          expect((yield* catalog.provider.available()).map((provider) => provider.id)).toContain(providerID)
+          expect(gemma).toMatchObject({
+            family: "gemma4",
+            name: "Gemma 4 26B A4B",
+            capabilities: { tools: true, input: ["text", "image"], output: ["text"] },
+            limit: { context: 16_384, output: 0 },
+          })
+          expect(yield* catalog.model.get(providerID, Model.ID.make("deepseek-r1"))).toMatchObject({
+            capabilities: { tools: false, input: ["text"], output: ["text"] },
+            limit: { context: 131_072, output: 0 },
+          })
+          expect(yield* catalog.model.get(providerID, Model.ID.make("nomic-embed"))).toBeUndefined()
+        }),
+      (server) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live("refreshes the catalog when LM Studio models change", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const models: Array<Record<string, unknown>> = []
+        return {
+          models,
+          server: Bun.serve({ port: 0, fetch: () => Response.json({ models }) }),
+        }
+      }),
+      ({ models, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const providerID = Provider.ID.make("lmstudio")
+          yield* addPlugin(server.url.origin, "5 millis")
+          expect(yield* catalog.provider.get(providerID)).toBeUndefined()
+
+          models.push({
+            type: "llm",
+            key: "qwen/qwen3-coder",
+            display_name: "Qwen 3 Coder",
+            architecture: "qwen3",
+            loaded_instances: [],
+            max_context_length: 65_536,
+            capabilities: { vision: false, trained_for_tool_use: true },
+          })
+          expect(
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("qwen/qwen3-coder")),
+              (model) => model !== undefined,
+            ),
+          ).toMatchObject({ name: "Qwen 3 Coder" })
+
+          models.splice(0)
+          yield* eventually(catalog.provider.get(providerID), (provider) => provider === undefined)
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live(
+    "discovers from configured endpoints with bearer authentication",
+    () =>
+      Effect.acquireUseRelease(
+        Effect.sync(() => {
+          const requests: Array<{ authorization: string | null; path: string }> = []
+          const model = (key: string) => ({
+            type: "llm",
+            key,
+            display_name: key,
+            loaded_instances: [],
+            max_context_length: 32_768,
+          })
+          return {
+            requests,
+            initial: Bun.serve({ port: 0, fetch: () => Response.json({ models: [model("initial-model")] }) }),
+            configured: Bun.serve({
+              port: 0,
+              fetch: (request) => {
+                requests.push({
+                  authorization: request.headers.get("authorization"),
+                  path: new URL(request.url).pathname,
+                })
+                return Response.json({ models: [model("configured-model")] })
+              },
+            }),
+          }
+        }),
+        ({ requests, initial, configured }) =>
+          Effect.gen(function* () {
+            const bus = yield* Bus.Service
+            const catalog = yield* Catalog.Service
+            const config = yield* Config.Test
+            const providerID = Provider.ID.make("lmstudio")
+            yield* addPlugin(initial.url.origin)
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("initial-model")),
+              (model) => model !== undefined,
+            )
+
+            const baseURL = `${configured.url.origin}/proxy/v1`
+            yield* config.setEntries([configuration(baseURL, "secret")])
+            yield* bus.publish(Event.Updated, {})
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("configured-model")),
+              (model) => model !== undefined,
+            )
+
+            expect(requests).toContainEqual({ authorization: "Bearer secret", path: "/proxy/api/v1/models" })
+            expect(yield* catalog.model.get(providerID, Model.ID.make("initial-model"))).toBeUndefined()
+            expect((yield* catalog.provider.get(providerID))?.settings).toEqual({
+              baseURL,
+              provider: "lmstudio",
+              apiKey: "secret",
+            })
+
+            requests.splice(0)
+            yield* config.setEntries([configuration(baseURL, "secret"), configuration(baseURL, null)])
+            yield* bus.publish(Event.Updated, {})
+            yield* eventually(catalog.provider.get(providerID), (provider) => provider?.settings?.apiKey === "")
+            expect(requests).toContainEqual({ authorization: null, path: "/proxy/api/v1/models" })
+          }),
+        ({ initial, configured }) => Effect.promise(() => Promise.all([initial.stop(true), configured.stop(true)])),
+      ),
+    10_000,
+  )
+
+  it.live("shares discovery requests across plugin instances", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const requests = { count: 0 }
+        return {
+          requests,
+          server: Bun.serve({
+            port: 0,
+            fetch: () => {
+              requests.count++
+              return Response.json({
+                models: [
+                  {
+                    type: "llm",
+                    key: "shared-model",
+                    display_name: "Shared Model",
+                    loaded_instances: [],
+                    max_context_length: 32_768,
+                  },
+                ],
+              })
+            },
+          }),
+        }
+      }),
+      ({ requests, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          yield* addPlugin(server.url.origin)
+          yield* addPlugin(server.url.origin)
+          yield* eventually(
+            catalog.model.get(Provider.ID.make("lmstudio"), Model.ID.make("shared-model")),
+            (model) => model !== undefined,
+          )
+          expect(requests.count).toBe(1)
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live("replaces the credential-gated Models.dev catalog when discovery succeeds", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const models = [
+          {
+            type: "llm",
+            key: "discovered-model",
+            display_name: "Discovered Model",
+            loaded_instances: [],
+            max_context_length: 32_768,
+          },
+        ]
+        return { models, server: Bun.serve({ port: 0, fetch: () => Response.json({ models }) }) }
+      }),
+      ({ models, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const integrations = yield* Integration.Service
+          const providerID = Provider.ID.make("lmstudio")
+          yield* integrations.transform((draft) => {
+            draft.update(Integration.ID.make("lmstudio"), (integration) => {
+              integration.name = "LMStudio"
+            })
+            draft.method.update({
+              integrationID: Integration.ID.make("lmstudio"),
+              method: { type: "env", names: ["LMSTUDIO_API_KEY"] },
+            })
+          })
+          yield* catalog.transform((draft) => {
+            draft.provider.update(providerID, (provider) => {
+              provider.name = "LMStudio"
+              provider.package = "aisdk:@ai-sdk/openai-compatible"
+              provider.integrationID = Integration.ID.make("lmstudio")
+            })
+            draft.model.update(providerID, Model.ID.make("static-model"), () => {})
+          })
+
+          expect((yield* catalog.provider.available()).map((provider) => provider.id)).not.toContain(providerID)
+          yield* addPlugin(server.url.origin, "5 millis")
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("discovered-model")),
+            (model) => model !== undefined,
+          )
+
+          expect(yield* integrations.get(Integration.ID.make("lmstudio"))).toBeUndefined()
+          expect((yield* catalog.provider.get(providerID))?.integrationID).toBeUndefined()
+          expect(yield* catalog.model.get(providerID, Model.ID.make("static-model"))).toBeUndefined()
+          expect((yield* catalog.provider.available()).map((provider) => provider.id)).toContain(providerID)
+
+          yield* integrations.transform((draft) => {
+            draft.update(Integration.ID.make("lmstudio"), (integration) => {
+              integration.name = "Configured LM Studio"
+            })
+            draft.method.update({ integrationID: Integration.ID.make("lmstudio"), method: { type: "key" } })
+          })
+          expect((yield* catalog.provider.available()).map((provider) => provider.id)).toContain(providerID)
+
+          models.splice(0)
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("static-model")),
+            (model) => model !== undefined,
+          )
+          expect(yield* catalog.model.get(providerID, Model.ID.make("discovered-model"))).toBeUndefined()
+          expect(yield* integrations.get(Integration.ID.make("lmstudio"))).toBeDefined()
+          expect((yield* catalog.provider.get(providerID))?.integrationID).toBe(Integration.ID.make("lmstudio"))
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+})
+
+function configuration(baseURL: string, apiKey: string | null) {
+  return new Document({
+    type: "document",
+    info: decode({ providers: { lmstudio: { settings: { baseURL, apiKey } } } }),
+  })
+}

packages/core/test/plugin/provider-ollama.test.ts

@@ -0,0 +1,342 @@
+import { Bus } from "@opencode-ai/core/bus"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { Config } from "@opencode-ai/core/config"
+import { Integration } from "@opencode-ai/core/integration"
+import { Model } from "@opencode-ai/core/model"
+import { Plugin } from "@opencode-ai/core/plugin"
+import { PluginHost } from "@opencode-ai/core/plugin/host"
+import { OllamaPlugin, make } from "@opencode-ai/core/plugin/provider/ollama"
+import { ProviderPlugins } from "@opencode-ai/core/plugin/provider"
+import { Provider } from "@opencode-ai/core/provider"
+import { Document, Event, Info } from "@opencode-ai/schema/config"
+import { describe, expect } from "bun:test"
+import { Duration, Effect, Layer, Schema } from "effect"
+import { testEffect } from "../lib/effect"
+import { PluginTestLayer } from "./fixture"
+
+const it = testEffect(Layer.merge(PluginTestLayer, Config.testLayer()))
+const decode = Schema.decodeUnknownSync(Info)
+const decodeShowRequest = Schema.decodeUnknownSync(Schema.Struct({ model: Schema.String }))
+
+const addPlugin = Effect.fn(function* (origin: string, interval: Duration.Input = "1 hour") {
+  const plugin = yield* Plugin.Service
+  const host = yield* PluginHost.make(plugin)
+  yield* make(origin, interval).effect(host)
+})
+
+function eventually<A>(
+  effect: Effect.Effect<A>,
+  predicate: (value: A) => boolean,
+  remaining = 3000,
+): Effect.Effect<A, Error> {
+  return Effect.gen(function* () {
+    const value = yield* effect
+    if (predicate(value)) return value
+    if (remaining === 0) return yield* Effect.fail(new Error("Timed out waiting for value"))
+    yield* Effect.promise(() => Bun.sleep(1))
+    return yield* eventually(effect, predicate, remaining - 1)
+  })
+}
+
+describe("OllamaPlugin", () => {
+  it.live("discovers local completion models and native metadata", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const requests: Array<{ method: string; path: string; model?: string }> = []
+        return {
+          requests,
+          server: Bun.serve({
+            port: 0,
+            fetch: async (request) => {
+              const path = new URL(request.url).pathname
+              if (request.method === "GET") {
+                requests.push({ method: request.method, path })
+                return Response.json({
+                  models: [
+                    summary("gemma3:4b", "gemma-digest", "gemma3"),
+                    summary("nomic-embed", "embed-digest"),
+                    summary("removed-model", "removed-digest"),
+                  ],
+                })
+              }
+              const body = decodeShowRequest(await request.json())
+              requests.push({ method: request.method, path, model: body.model })
+              if (body.model === "removed-model") return new Response("Not found", { status: 404 })
+              return Response.json(
+                body.model === "gemma3:4b"
+                  ? {
+                      capabilities: ["completion", "tools", "vision"],
+                      model_info: { "gemma3.context_length": 131_072 },
+                    }
+                  : show({ family: "nomic-bert", capabilities: ["embedding"], context: 8192 }),
+              )
+            },
+          }),
+        }
+      }),
+      ({ requests, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const providerID = Provider.ID.make("ollama")
+          expect(OllamaPlugin.id).toBe("opencode.provider.ollama")
+          expect(ProviderPlugins.map((item) => item.id)).toContain("opencode.provider.ollama")
+          yield* addPlugin(server.url.origin)
+          const model = yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("gemma3:4b")),
+            (item) => item !== undefined,
+          )
+
+          expect(yield* catalog.provider.get(providerID)).toEqual({
+            id: providerID,
+            name: "Ollama",
+            activation: "enabled",
+            package: "@opencode-ai/ai/providers/openai-compatible",
+            settings: { baseURL: `${server.url.origin}/v1`, provider: "ollama", apiKey: "" },
+          })
+          expect(model).toMatchObject({
+            modelID: "gemma3:4b",
+            name: "gemma3:4b",
+            family: "gemma3",
+            capabilities: { tools: true, input: ["text", "image"], output: ["text"] },
+            limit: { context: 131_072, output: 0 },
+          })
+          expect(yield* catalog.model.get(providerID, Model.ID.make("nomic-embed"))).toBeUndefined()
+          expect(requests).toContainEqual({ method: "GET", path: "/api/tags" })
+          expect(requests).toContainEqual({ method: "POST", path: "/api/show", model: "gemma3:4b" })
+          expect(requests).toContainEqual({ method: "POST", path: "/api/show", model: "nomic-embed" })
+          expect(requests).toContainEqual({ method: "POST", path: "/api/show", model: "removed-model" })
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live("refreshes changed digests and retains inventory through transient failures", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const state = { digest: "digest-1", context: 32_768, fail: false }
+        const requests = { tags: 0, show: 0 }
+        return {
+          state,
+          requests,
+          server: Bun.serve({
+            port: 0,
+            fetch: async (request) => {
+              if (request.method === "GET") {
+                requests.tags++
+                if (state.fail) return new Response("unavailable", { status: 503 })
+                return Response.json({ models: [summary("qwen3:8b", state.digest, "qwen3")] })
+              }
+              decodeShowRequest(await request.json())
+              requests.show++
+              return Response.json(
+                show({ family: "qwen3", capabilities: ["completion", "tools"], context: state.context }),
+              )
+            },
+          }),
+        }
+      }),
+      ({ state, requests, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const providerID = Provider.ID.make("ollama")
+          const modelID = Model.ID.make("qwen3:8b")
+          yield* addPlugin(server.url.origin, "5 millis")
+          yield* eventually(catalog.model.get(providerID, modelID), (model) => model?.limit.context === 32_768)
+          yield* eventually(
+            Effect.sync(() => requests.tags),
+            (count) => count >= 2,
+          )
+          expect(requests.show).toBe(1)
+
+          state.digest = "digest-2"
+          state.context = 65_536
+          yield* eventually(catalog.model.get(providerID, modelID), (model) => model?.limit.context === 65_536)
+          expect(requests.show).toBe(2)
+
+          state.fail = true
+          yield* Effect.promise(() => Bun.sleep(30))
+          expect((yield* catalog.model.get(providerID, modelID))?.limit.context).toBe(65_536)
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live("replaces and restores the same-ID Models.dev provider", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const models = [summary("discovered-model", "digest")]
+        return {
+          models,
+          server: Bun.serve({
+            port: 0,
+            fetch: async (request) => {
+              if (request.method === "GET") return Response.json({ models })
+              decodeShowRequest(await request.json())
+              return Response.json(show({ capabilities: ["completion"], context: 32_768 }))
+            },
+          }),
+        }
+      }),
+      ({ models, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const integrations = yield* Integration.Service
+          const providerID = Provider.ID.make("ollama")
+          yield* integrations.transform((draft) => {
+            draft.update(Integration.ID.make("ollama"), (integration) => {
+              integration.name = "Ollama"
+            })
+            draft.method.update({
+              integrationID: Integration.ID.make("ollama"),
+              method: { type: "env", names: ["OLLAMA_API_KEY"] },
+            })
+          })
+          yield* catalog.transform((draft) => {
+            draft.provider.update(providerID, (provider) => {
+              provider.name = "Ollama"
+              provider.package = "aisdk:@ai-sdk/openai-compatible"
+              provider.integrationID = Integration.ID.make("ollama")
+            })
+            draft.model.update(providerID, Model.ID.make("static-model"), () => {})
+          })
+
+          yield* addPlugin(server.url.origin, "5 millis")
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("discovered-model")),
+            (model) => model !== undefined,
+          )
+          expect(yield* integrations.get(Integration.ID.make("ollama"))).toBeUndefined()
+          expect((yield* catalog.provider.get(providerID))?.activation).toBe("enabled")
+          expect(yield* catalog.model.get(providerID, Model.ID.make("static-model"))).toBeUndefined()
+
+          models.splice(0)
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("static-model")),
+            (model) => model !== undefined,
+          )
+          expect(yield* catalog.model.get(providerID, Model.ID.make("discovered-model"))).toBeUndefined()
+          expect(yield* integrations.get(Integration.ID.make("ollama"))).toBeDefined()
+          expect((yield* catalog.provider.get(providerID))?.activation).toBe("auto")
+          expect((yield* catalog.provider.get(providerID))?.integrationID).toBe(Integration.ID.make("ollama"))
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live(
+    "reloads layered endpoint and bearer authentication settings",
+    () =>
+      Effect.acquireUseRelease(
+        Effect.sync(() => {
+          const requests: Array<{ authorization: string | null; method: string; path: string }> = []
+          return {
+            requests,
+            initial: Bun.serve({
+              port: 0,
+              fetch: async (request) => {
+                if (request.method === "GET")
+                  return Response.json({ models: [summary("initial-model", "initial-digest")] })
+                decodeShowRequest(await request.json())
+                return Response.json(show({ capabilities: ["completion"], context: 4096 }))
+              },
+            }),
+            configured: Bun.serve({
+              port: 0,
+              fetch: async (request) => {
+                requests.push({
+                  authorization: request.headers.get("authorization"),
+                  method: request.method,
+                  path: new URL(request.url).pathname,
+                })
+                if (request.method === "GET")
+                  return Response.json({ models: [summary("configured-model", "configured-digest")] })
+                decodeShowRequest(await request.json())
+                return Response.json(show({ capabilities: ["completion", "vision"], context: 65_536 }))
+              },
+            }),
+          }
+        }),
+        ({ requests, initial, configured }) =>
+          Effect.gen(function* () {
+            const bus = yield* Bus.Service
+            const catalog = yield* Catalog.Service
+            const config = yield* Config.Test
+            const providerID = Provider.ID.make("ollama")
+            yield* addPlugin(initial.url.origin)
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("initial-model")),
+              (model) => model !== undefined,
+            )
+
+            const baseURL = `${configured.url.origin}/proxy/v1`
+            yield* config.setEntries([configuration({ baseURL, apiKey: "old" }), configuration({ apiKey: "secret" })])
+            yield* bus.publish(Event.Updated, {})
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("configured-model")),
+              (model) => model !== undefined,
+            )
+            expect(requests).toContainEqual({ authorization: "Bearer secret", method: "GET", path: "/proxy/api/tags" })
+            expect(requests).toContainEqual({ authorization: "Bearer secret", method: "POST", path: "/proxy/api/show" })
+            expect(yield* catalog.model.get(providerID, Model.ID.make("initial-model"))).toBeUndefined()
+            expect((yield* catalog.provider.get(providerID))?.settings).toEqual({
+              baseURL,
+              provider: "ollama",
+              apiKey: "secret",
+            })
+
+            requests.splice(0)
+            yield* config.setEntries([configuration({ baseURL, apiKey: "secret" }), configuration({ apiKey: null })])
+            yield* bus.publish(Event.Updated, {})
+            yield* eventually(catalog.provider.get(providerID), (provider) => provider?.settings?.apiKey === "")
+            expect(requests).toContainEqual({ authorization: null, method: "GET", path: "/proxy/api/tags" })
+            expect(requests).toContainEqual({ authorization: null, method: "POST", path: "/proxy/api/show" })
+          }),
+        ({ initial, configured }) => Effect.promise(() => Promise.all([initial.stop(true), configured.stop(true)])),
+      ),
+    10_000,
+  )
+})
+
+function summary(model: string, digest: string, family = "llama") {
+  return {
+    name: model,
+    model,
+    modified_at: "2026-01-01T00:00:00Z",
+    size: 1_000_000,
+    digest,
+    details: {
+      format: "gguf",
+      family,
+      families: [family],
+      parameter_size: "8B",
+      quantization_level: "Q4_K_M",
+    },
+  }
+}
+
+function show(input: { family?: string; capabilities: string[]; context: number }) {
+  const family = input.family ?? "llama"
+  return {
+    parameters: "temperature 0.7",
+    details: {
+      parent_model: "",
+      format: "gguf",
+      family,
+      families: [family],
+      parameter_size: "8B",
+      quantization_level: "Q4_K_M",
+    },
+    capabilities: input.capabilities,
+    model_info: {
+      "general.architecture": family,
+      [`${family}.context_length`]: input.context,
+    },
+  }
+}
+
+function configuration(settings: Record<string, string | null>) {
+  return new Document({
+    type: "document",
+    info: decode({ providers: { ollama: { settings } } }),
+  })
+}

packages/core/test/plugin/provider-vllm.test.ts

@@ -0,0 +1,289 @@
+import { Bus } from "@opencode-ai/core/bus"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { Config } from "@opencode-ai/core/config"
+import { Integration } from "@opencode-ai/core/integration"
+import { Model } from "@opencode-ai/core/model"
+import { Plugin } from "@opencode-ai/core/plugin"
+import { PluginHost } from "@opencode-ai/core/plugin/host"
+import { ProviderPlugins } from "@opencode-ai/core/plugin/provider"
+import { make, VLLMPlugin } from "@opencode-ai/core/plugin/provider/vllm"
+import { Provider } from "@opencode-ai/core/provider"
+import { Document, Event, Info } from "@opencode-ai/schema/config"
+import { describe, expect } from "bun:test"
+import { Duration, Effect, Layer, Schema } from "effect"
+import { testEffect } from "../lib/effect"
+import { PluginTestLayer } from "./fixture"
+
+const it = testEffect(Layer.merge(PluginTestLayer, Config.testLayer()))
+const decode = Schema.decodeUnknownSync(Info)
+
+const addPlugin = Effect.fn(function* (origin: string, interval: Duration.Input = "1 hour") {
+  const plugin = yield* Plugin.Service
+  const host = yield* PluginHost.make(plugin)
+  yield* make(origin, interval).effect(host)
+})
+
+function eventually<A>(
+  effect: Effect.Effect<A>,
+  predicate: (value: A) => boolean,
+  remaining = 3000,
+): Effect.Effect<A, Error> {
+  return Effect.gen(function* () {
+    const value = yield* effect
+    if (predicate(value)) return value
+    if (remaining === 0) return yield* Effect.fail(new Error("Timed out waiting for value"))
+    yield* Effect.promise(() => Bun.sleep(1))
+    return yield* eventually(effect, predicate, remaining - 1)
+  })
+}
+
+const remoteModel = (id: string, max_model_len = 32_768, owned_by = "vllm") => ({
+  id,
+  object: "model",
+  created: 1,
+  owned_by,
+  root: id,
+  parent: null,
+  max_model_len,
+  permission: [],
+})
+
+describe("VLLMPlugin", () => {
+  it.live("waits for readiness and discovers official vLLM model metadata", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const state = { healthy: false, models: 0 }
+        return {
+          state,
+          server: Bun.serve({
+            port: 0,
+            fetch: (request) => {
+              const path = new URL(request.url).pathname
+              if (path === "/health") return new Response(null, { status: state.healthy ? 200 : 503 })
+              state.models++
+              return Response.json({
+                object: "list",
+                data: [remoteModel("Qwen/Qwen3-Coder", 65_536), remoteModel("foreign-model", 4096, "other")],
+              })
+            },
+          }),
+        }
+      }),
+      ({ state, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const providerID = Provider.ID.make("vllm")
+          expect(VLLMPlugin.id).toBe("opencode.provider.vllm")
+          expect(ProviderPlugins.map((item) => item.id)).toContain("opencode.provider.vllm")
+          yield* addPlugin(server.url.origin, "5 millis")
+          yield* Effect.promise(() => Bun.sleep(20))
+          expect(yield* catalog.provider.get(providerID)).toBeUndefined()
+          expect(state.models).toBe(0)
+
+          state.healthy = true
+          const model = yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("Qwen/Qwen3-Coder")),
+            (item) => item !== undefined,
+          )
+          expect(yield* catalog.provider.get(providerID)).toEqual({
+            id: providerID,
+            name: "vLLM",
+            package: "@opencode-ai/ai/providers/openai-compatible",
+            settings: { baseURL: `${server.url.origin}/v1`, provider: "vllm", apiKey: "" },
+            activation: "enabled",
+          })
+          expect((yield* catalog.provider.available()).map((provider) => provider.id)).toContain(providerID)
+          expect(model).toMatchObject({
+            modelID: "Qwen/Qwen3-Coder",
+            name: "Qwen/Qwen3-Coder",
+            capabilities: { tools: false, input: ["text"], output: ["text"] },
+            limit: { context: 65_536, output: 0 },
+          })
+          expect(yield* catalog.model.get(providerID, Model.ID.make("foreign-model"))).toBeUndefined()
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live("refreshes inventory while retaining the last success through transient failures", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const state = { failing: false, models: [remoteModel("first-model")] }
+        return {
+          state,
+          server: Bun.serve({
+            port: 0,
+            fetch: (request) => {
+              if (state.failing) return new Response(null, { status: 503 })
+              if (new URL(request.url).pathname === "/health") return new Response()
+              return Response.json({ object: "list", data: state.models })
+            },
+          }),
+        }
+      }),
+      ({ state, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const providerID = Provider.ID.make("vllm")
+          yield* addPlugin(server.url.origin, "5 millis")
+          yield* eventually(catalog.model.get(providerID, Model.ID.make("first-model")), (model) => model !== undefined)
+
+          state.failing = true
+          state.models = [remoteModel("second-model")]
+          yield* Effect.promise(() => Bun.sleep(30))
+          expect(yield* catalog.model.get(providerID, Model.ID.make("first-model"))).toBeDefined()
+          expect(yield* catalog.model.get(providerID, Model.ID.make("second-model"))).toBeUndefined()
+
+          state.failing = false
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("second-model")),
+            (model) => model !== undefined,
+          )
+          expect(yield* catalog.model.get(providerID, Model.ID.make("first-model"))).toBeUndefined()
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live("replaces and restores same-ID Models.dev entries after an empty success", () =>
+    Effect.acquireUseRelease(
+      Effect.sync(() => {
+        const models = [remoteModel("discovered-model")]
+        return {
+          models,
+          server: Bun.serve({
+            port: 0,
+            fetch: (request) =>
+              new URL(request.url).pathname === "/health"
+                ? new Response()
+                : Response.json({ object: "list", data: models }),
+          }),
+        }
+      }),
+      ({ models, server }) =>
+        Effect.gen(function* () {
+          const catalog = yield* Catalog.Service
+          const integrations = yield* Integration.Service
+          const providerID = Provider.ID.make("vllm")
+          yield* integrations.transform((draft) => {
+            draft.update(Integration.ID.make("vllm"), (integration) => {
+              integration.name = "vLLM"
+            })
+            draft.method.update({
+              integrationID: Integration.ID.make("vllm"),
+              method: { type: "env", names: ["VLLM_API_KEY"] },
+            })
+          })
+          yield* catalog.transform((draft) => {
+            draft.provider.update(providerID, (provider) => {
+              provider.name = "vLLM"
+              provider.package = "aisdk:@ai-sdk/openai-compatible"
+              provider.integrationID = Integration.ID.make("vllm")
+              provider.activation = "auto"
+            })
+            draft.model.update(providerID, Model.ID.make("static-model"), () => {})
+          })
+
+          yield* addPlugin(server.url.origin, "5 millis")
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("discovered-model")),
+            (model) => model !== undefined,
+          )
+          expect(yield* integrations.get(Integration.ID.make("vllm"))).toBeUndefined()
+          expect((yield* catalog.provider.get(providerID))?.integrationID).toBeUndefined()
+          expect((yield* catalog.provider.get(providerID))?.activation).toBe("enabled")
+          expect(yield* catalog.model.get(providerID, Model.ID.make("static-model"))).toBeUndefined()
+
+          models.splice(0)
+          yield* eventually(
+            catalog.model.get(providerID, Model.ID.make("static-model")),
+            (model) => model !== undefined,
+          )
+          expect(yield* catalog.model.get(providerID, Model.ID.make("discovered-model"))).toBeUndefined()
+          expect(yield* integrations.get(Integration.ID.make("vllm"))).toBeDefined()
+          expect((yield* catalog.provider.get(providerID))?.integrationID).toBe(Integration.ID.make("vllm"))
+          expect((yield* catalog.provider.get(providerID))?.activation).toBe("auto")
+        }),
+      ({ server }) => Effect.promise(() => server.stop(true)),
+    ),
+  )
+
+  it.live(
+    "reloads layered custom endpoint and bearer authentication settings",
+    () =>
+      Effect.acquireUseRelease(
+        Effect.sync(() => {
+          const requests: Array<{ authorization: string | null; path: string }> = []
+          return {
+            requests,
+            initial: Bun.serve({
+              port: 0,
+              fetch: (request) =>
+                new URL(request.url).pathname === "/health"
+                  ? new Response()
+                  : Response.json({ object: "list", data: [remoteModel("initial-model")] }),
+            }),
+            configured: Bun.serve({
+              port: 0,
+              fetch: (request) => {
+                requests.push({
+                  authorization: request.headers.get("authorization"),
+                  path: new URL(request.url).pathname,
+                })
+                if (new URL(request.url).pathname === "/proxy/health") return new Response()
+                return Response.json({ object: "list", data: [remoteModel("configured-model")] })
+              },
+            }),
+          }
+        }),
+        ({ requests, initial, configured }) =>
+          Effect.gen(function* () {
+            const bus = yield* Bus.Service
+            const catalog = yield* Catalog.Service
+            const config = yield* Config.Test
+            const providerID = Provider.ID.make("vllm")
+            yield* addPlugin(initial.url.origin)
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("initial-model")),
+              (model) => model !== undefined,
+            )
+
+            const baseURL = `${configured.url.origin}/proxy/v1`
+            yield* config.setEntries([configuration({ baseURL }), configuration({ apiKey: "secret" })])
+            yield* bus.publish(Event.Updated, {})
+            yield* eventually(
+              catalog.model.get(providerID, Model.ID.make("configured-model")),
+              (model) => model !== undefined,
+            )
+
+            expect(requests).toContainEqual({ authorization: "Bearer secret", path: "/proxy/health" })
+            expect(requests).toContainEqual({ authorization: "Bearer secret", path: "/proxy/v1/models" })
+            expect(yield* catalog.model.get(providerID, Model.ID.make("initial-model"))).toBeUndefined()
+            expect((yield* catalog.provider.get(providerID))?.settings).toEqual({
+              baseURL,
+              provider: "vllm",
+              apiKey: "secret",
+            })
+
+            requests.splice(0)
+            yield* config.setEntries([configuration({ baseURL }), configuration({ apiKey: "next-secret" })])
+            yield* bus.publish(Event.Updated, {})
+            yield* eventually(
+              catalog.provider.get(providerID),
+              (provider) => provider?.settings?.apiKey === "next-secret",
+            )
+            expect(requests).toContainEqual({ authorization: "Bearer next-secret", path: "/proxy/health" })
+            expect(requests).toContainEqual({ authorization: "Bearer next-secret", path: "/proxy/v1/models" })
+          }),
+        ({ initial, configured }) => Effect.promise(() => Promise.all([initial.stop(true), configured.stop(true)])),
+      ),
+    10_000,
+  )
+})
+
+function configuration(settings: { baseURL?: string; apiKey?: string }) {
+  return new Document({
+    type: "document",
+    info: decode({ providers: { vllm: { settings } } }),
+  })
+}

packages/core/test/session-create.test.ts

@@ -840,7 +840,15 @@ describe("SessionTransfer", () => {
 
       const imported = yield* transfer.import({
         data: {
-          info: { ...template, id: sessionID },
+          info: {
+            ...template,
+            id: sessionID,
+            time: {
+              ...template.time,
+              idle: DateTime.makeUnsafe(200),
+              viewed: DateTime.makeUnsafe(150),
+            },
+          },
           messages: [
             {
               id: sourceMessageID,
@@ -863,13 +871,18 @@ describe("SessionTransfer", () => {
       const messages = yield* session.messages({ sessionID, order: "asc" })
 
       expect(imported).toMatchObject({ id: sessionID, title: "Exported", location })
+      expect(imported.time).toMatchObject({ idle: DateTime.makeUnsafe(200), viewed: DateTime.makeUnsafe(150) })
       expect(messages).toMatchObject([
         { id: sourceMessageID, type: "user", text: "Imported message" },
         { id: errorMessageID, type: "compaction", error: { type: "test_error", message: "Original error" } },
       ])
       expect(yield* Bus.latestSequence(db, sessionID)).toBe(2)
-      expect((yield* transfer.export({ sessionID })).messages).toEqual(messages)
-      expect((yield* transfer.export({ sessionID, sanitize: true })).messages).toMatchObject([
+      const exported = yield* transfer.export({ sessionID })
+      expect(exported.info.time).toMatchObject({ idle: DateTime.makeUnsafe(200), viewed: DateTime.makeUnsafe(150) })
+      expect(exported.messages).toEqual(messages)
+      const sanitized = yield* transfer.export({ sessionID, sanitize: true })
+      expect(sanitized.info.time).toMatchObject({ idle: DateTime.makeUnsafe(200), viewed: DateTime.makeUnsafe(150) })
+      expect(sanitized.messages).toMatchObject([
         { id: sourceMessageID, text: `[redacted:text:${sourceMessageID}]` },
         { id: errorMessageID, error: { type: "test_error", message: "Original error" } },
       ])

packages/core/test/session-view.test.ts

@@ -0,0 +1,174 @@
+import { describe, expect } from "bun:test"
+import path from "path"
+import { Bus } from "@opencode-ai/core/bus"
+import { Database } from "@opencode-ai/core/database/database"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { EventTable } from "@opencode-ai/core/event/sql"
+import { Location } from "@opencode-ai/core/location"
+import { Project } from "@opencode-ai/core/project"
+import { ProjectTable } from "@opencode-ai/core/project/sql"
+import { AbsolutePath } from "@opencode-ai/core/schema"
+import { Session } from "@opencode-ai/core/session"
+import { SessionEvent } from "@opencode-ai/core/session/event"
+import { SessionExecution } from "@opencode-ai/core/session/execution"
+import { SessionProjector } from "@opencode-ai/core/session/projector"
+import { SessionTable } from "@opencode-ai/core/session/sql"
+import { SessionStore } from "@opencode-ai/core/session/store"
+import { LayerNode } from "@opencode-ai/util/effect/layer-node"
+import { DateTime, Effect, Layer } from "effect"
+import { asc, eq } from "drizzle-orm"
+import { tmpdir } from "./fixture/tmpdir"
+import { testEffect } from "./lib/effect"
+import { globalProjectLayer } from "./lib/project"
+
+const it = testEffect(
+  AppNodeBuilder.build(
+    LayerNode.group([Database.node, Bus.node, SessionProjector.node, SessionStore.node, Session.node]),
+    [
+      [Bus.node, Bus.configured({ persist: true })],
+      [Project.node, globalProjectLayer],
+      [SessionExecution.node, SessionExecution.noopLayer],
+    ],
+  ),
+)
+const location = Location.Ref.make({ directory: AbsolutePath.make("/project") })
+
+describe("Session.view", () => {
+  it.effect("copies the latest idle time without changing session recency", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const bus = yield* Bus.Service
+      const { db } = yield* Database.Service
+      const created = yield* session.create({ location })
+
+      expect(created.time.idle).toBeUndefined()
+      expect(created.time.viewed).toBeUndefined()
+
+      yield* session.view({ sessionID: created.id })
+      expect((yield* session.get(created.id)).time.viewed).toBeUndefined()
+
+      yield* bus.publish(SessionEvent.Execution.Succeeded, { sessionID: created.id })
+      const idle = yield* session.get(created.id)
+      expect(idle.time.idle).toBeDefined()
+      expect(idle.time.viewed).toBeUndefined()
+      expect(idle.time.updated).toEqual(created.time.updated)
+
+      yield* session.view({ sessionID: created.id })
+      const viewed = yield* session.get(created.id)
+      if (!viewed.time.idle || !viewed.time.viewed) return yield* Effect.die(new Error("Expected attention times"))
+      expect(viewed.time.viewed).toEqual(viewed.time.idle)
+      expect(viewed.time.updated).toEqual(created.time.updated)
+      expect(
+        yield* db
+          .select({ idle: SessionTable.time_idle, viewed: SessionTable.time_viewed })
+          .from(SessionTable)
+          .where(eq(SessionTable.id, created.id))
+          .get(),
+      ).toEqual({
+        idle: DateTime.toEpochMillis(viewed.time.idle),
+        viewed: DateTime.toEpochMillis(viewed.time.viewed),
+      })
+      expect((yield* session.list()).data.find((item) => item.id === created.id)?.time).toEqual(viewed.time)
+
+      yield* session.view({ sessionID: created.id })
+      expect((yield* session.get(created.id)).time).toEqual(viewed.time)
+
+      yield* bus.publish(SessionEvent.Execution.Failed, {
+        sessionID: created.id,
+        error: { type: "unknown", message: "failed" },
+      })
+      const unread = yield* session.get(created.id)
+      if (!unread.time.idle || !unread.time.viewed) return yield* Effect.die(new Error("Expected attention times"))
+      expect(DateTime.toEpochMillis(unread.time.idle)).toBeGreaterThan(DateTime.toEpochMillis(unread.time.viewed))
+
+      yield* session.view({ sessionID: created.id })
+      expect((yield* session.get(created.id)).time.viewed).toEqual(unread.time.idle)
+
+      yield* bus.publish(SessionEvent.Execution.Interrupted, { sessionID: created.id, reason: "shutdown" })
+      expect((yield* session.get(created.id)).time.idle).toEqual(unread.time.idle)
+
+      yield* bus.publish(SessionEvent.Execution.Interrupted, { sessionID: created.id, reason: "user" })
+      const interrupted = yield* session.get(created.id)
+      if (!interrupted.time.idle || !interrupted.time.viewed)
+        return yield* Effect.die(new Error("Expected attention times"))
+      expect(DateTime.toEpochMillis(interrupted.time.idle)).toBeGreaterThan(
+        DateTime.toEpochMillis(interrupted.time.viewed),
+      )
+      expect(
+        (yield* db
+          .select({ type: EventTable.type })
+          .from(EventTable)
+          .where(eq(EventTable.aggregate_id, created.id))
+          .all()).filter((event) => event.type === "session.viewed.1"),
+      ).toHaveLength(2)
+    }),
+  )
+
+  it.effect("rejects an unknown session", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const sessionID = Session.ID.make("ses_missing_view")
+      expect(yield* Effect.flip(session.view({ sessionID }))).toEqual(new Session.NotFoundError({ sessionID }))
+    }),
+  )
+
+  it.effect("replays viewed state into a fresh database", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const bus = yield* Bus.Service
+      const sourceDb = (yield* Database.Service).db
+      const created = yield* session.create({ id: Session.ID.make("ses_view_replay"), location })
+      yield* bus.publish(SessionEvent.Execution.Succeeded, { sessionID: created.id })
+      yield* session.view({ sessionID: created.id })
+      yield* bus.publish(SessionEvent.Execution.Failed, {
+        sessionID: created.id,
+        error: { type: "unknown", message: "failed" },
+      })
+      const expected = yield* session.get(created.id)
+      if (!expected.time.idle || !expected.time.viewed) return yield* Effect.die(new Error("Expected attention times"))
+      const expectedIdle = DateTime.toEpochMillis(expected.time.idle)
+      const expectedViewed = DateTime.toEpochMillis(expected.time.viewed)
+      const serialized = (yield* sourceDb
+        .select()
+        .from(EventTable)
+        .where(eq(EventTable.aggregate_id, created.id))
+        .orderBy(asc(EventTable.seq))
+        .all()
+        .pipe(Effect.orDie)).map((event) => ({
+        id: event.id,
+        created: event.created,
+        aggregateID: event.aggregate_id,
+        seq: event.seq,
+        type: event.type,
+        data: event.data,
+      }))
+      const tmp = yield* Effect.acquireRelease(
+        Effect.promise(() => tmpdir()),
+        (tmp) => Effect.promise(() => tmp[Symbol.asyncDispose]()),
+      )
+      const targetLayer = AppNodeBuilder.build(
+        LayerNode.group([Database.node, Bus.node, SessionProjector.node, SessionStore.node]),
+        [
+          [Database.node, Database.configured({ path: path.join(tmp.path, "target.sqlite") })],
+          [Bus.node, Bus.configured({ persist: true })],
+        ],
+      )
+
+      yield* Effect.gen(function* () {
+        const db = (yield* Database.Service).db
+        const targetBus = yield* Bus.Service
+        const store = yield* SessionStore.Service
+        yield* db
+          .insert(ProjectTable)
+          .values({ id: Project.ID.global, worktree: location.directory, sandboxes: [] })
+          .run()
+          .pipe(Effect.orDie)
+        yield* Effect.forEach(serialized, (event) => targetBus.replay(event), { discard: true })
+
+        expect((yield* store.get(created.id))?.time).toEqual(expected.time)
+        expect(expected.time.updated).toEqual(created.time.updated)
+        expect(expectedIdle).toBeGreaterThan(expectedViewed)
+      }).pipe(Effect.provide(Layer.fresh(targetLayer)))
+    }),
+  )
+})

packages/core/test/v1-migration.test.ts

@@ -60,6 +60,8 @@ const session = (
   model: null,
   time_created: 1,
   time_updated: 2,
+  time_idle: null,
+  time_viewed: null,
   time_compacting: 3,
   time_archived: null,
   time_suspended: null,

packages/protocol/openapi.json

@@ -4127,6 +4127,65 @@
         "summary": "Get session message"
       }
     },
+    "/api/session/{sessionID}/view": {
+      "post": {
+        "tags": ["session"],
+        "operationId": "v2.session.view",
+        "parameters": [
+          {
+            "name": "sessionID",
+            "in": "path",
+            "schema": {
+              "type": "string",
+              "allOf": [
+                {
+                  "pattern": "^ses"
+                }
+              ]
+            },
+            "required": true
+          }
+        ],
+        "security": [],
+        "responses": {
+          "204": {
+            "description": "<No Content>"
+          },
+          "400": {
+            "description": "InvalidRequestError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/InvalidRequestError"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "UnauthorizedError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UnauthorizedError"
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "SessionNotFoundError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/SessionNotFoundError"
+                }
+              }
+            }
+          }
+        },
+        "description": "Mark the latest recorded idle transition as viewed.",
+        "summary": "View session"
+      }
+    },
     "/api/session/{sessionID}/message": {
       "get": {
         "tags": ["session"],
@@ -12135,6 +12194,12 @@
               "updated": {
                 "type": "number"
               },
+              "idle": {
+                "type": "number"
+              },
+              "viewed": {
+                "type": "number"
+              },
               "archived": {
                 "type": "number"
               }
@@ -14276,6 +14341,71 @@
         "required": ["id", "created", "type", "durable", "data"],
         "additionalProperties": false
       },
+      "session.viewed": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string",
+            "allOf": [
+              {
+                "pattern": "^evt_"
+              }
+            ]
+          },
+          "created": {
+            "type": "number"
+          },
+          "metadata": {
+            "type": "object"
+          },
+          "type": {
+            "type": "string",
+            "enum": ["session.viewed"]
+          },
+          "durable": {
+            "type": "object",
+            "properties": {
+              "aggregateID": {
+                "type": "string"
+              },
+              "seq": {
+                "type": "integer",
+                "allOf": [
+                  {
+                    "minimum": 0
+                  }
+                ]
+              },
+              "version": {
+                "type": "number",
+                "enum": [1]
+              }
+            },
+            "required": ["aggregateID", "seq", "version"],
+            "additionalProperties": false
+          },
+          "location": {
+            "$ref": "#/components/schemas/Location.Ref"
+          },
+          "data": {
+            "type": "object",
+            "properties": {
+              "sessionID": {
+                "type": "string",
+                "allOf": [
+                  {
+                    "pattern": "^ses"
+                  }
+                ]
+              }
+            },
+            "required": ["sessionID"],
+            "additionalProperties": false
+          }
+        },
+        "required": ["id", "created", "type", "durable", "data"],
+        "additionalProperties": false
+      },
       "session.deleted": {
         "type": "object",
         "properties": {
@@ -17296,6 +17426,9 @@
           {
             "$ref": "#/components/schemas/session.renamed"
           },
+          {
+            "$ref": "#/components/schemas/session.viewed"
+          },
           {
             "$ref": "#/components/schemas/session.deleted"
           },
@@ -22664,6 +22797,9 @@
           {
             "$ref": "#/components/schemas/session.renamed"
           },
+          {
+            "$ref": "#/components/schemas/session.viewed"
+          },
           {
             "$ref": "#/components/schemas/session.usage.updated"
           },

packages/protocol/package.json

@@ -33,6 +33,7 @@
     "@tsconfig/bun": "catalog:",
     "@types/bun": "catalog:",
     "@typescript/native-preview": "catalog:",
+    "prettier": "3.6.2",
     "typescript": "catalog:"
   }
 }

packages/protocol/script/generate-openapi.ts

@@ -1,8 +1,9 @@
 import { OpenApi } from "effect/unstable/httpapi"
+import { format } from "prettier"
 import { fileURLToPath } from "url"
 import { ClientApi } from "../src/client.js"
 
-const document = JSON.stringify(OpenApi.fromApi(ClientApi), null, 2) + "\n"
+const document = await format(JSON.stringify(OpenApi.fromApi(ClientApi), null, 2), { parser: "json", printWidth: 120 })
 const target = fileURLToPath(new URL("../openapi.json", import.meta.url))
 
 if (process.argv.includes("--check")) {

packages/protocol/src/groups/session.ts

@@ -693,6 +693,19 @@ export const makeSessionGroup = <I extends HttpApiMiddleware.AnyId, S>(sessionLo
         }),
       ),
     )
+    .add(
+      HttpApiEndpoint.post("session.view", "/api/session/:sessionID/view", {
+        params: { sessionID: Session.ID },
+        success: HttpApiSchema.NoContent,
+        error: SessionNotFoundError,
+      }).annotateMerge(
+        OpenApi.annotations({
+          identifier: "v2.session.view",
+          summary: "View session",
+          description: "Mark the latest recorded idle transition as viewed.",
+        }),
+      ),
+    )
     .annotateMerge(
       OpenApi.annotations({
         title: "session",

packages/schema/src/session-event.ts

@@ -105,6 +105,13 @@ export const Renamed = Event.durable({
 })
 export type Renamed = typeof Renamed.Type
 
+export const Viewed = Event.durable({
+  type: "session.viewed",
+  ...options,
+  schema: Base,
+})
+export type Viewed = typeof Viewed.Type
+
 export const UsageRecorded = Event.durable({
   type: "session.usage.recorded",
   ...options,
@@ -580,6 +587,7 @@ export const Definitions = Event.inventory(
   ModelSelected,
   Moved,
   Renamed,
+  Viewed,
   UsageUpdated,
   Deleted,
   Forked,

packages/schema/src/session.ts

@@ -40,6 +40,8 @@ export const Info = Schema.Struct({
   time: Schema.Struct({
     created: DateTimeUtcFromMillis,
     updated: DateTimeUtcFromMillis,
+    idle: DateTimeUtcFromMillis.pipe(optional),
+    viewed: DateTimeUtcFromMillis.pipe(optional),
     archived: DateTimeUtcFromMillis.pipe(optional),
   }),
   title: Schema.String.pipe(optional),

packages/schema/test/contract-hygiene.test.ts

@@ -54,17 +54,29 @@ describe("contract hygiene", () => {
       }),
     ).toEqual({ text: "completed" })
 
+    const info = Session.Info.make({
+      id: Session.ID.make("ses_untitled"),
+      projectID: Project.ID.make("global"),
+      cost: Money.USD.zero,
+      tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+      time: {
+        created: DateTime.makeUnsafe(0),
+        updated: DateTime.makeUnsafe(0),
+        idle: undefined,
+        viewed: undefined,
+      },
+      title: undefined,
+      location: { directory: AbsolutePath.make("/project") },
+    })
+    const encoded = Schema.encodeSync(Session.Info)(info)
+    expect(encoded).not.toHaveProperty("title")
+    expect(encoded.time).toEqual({ created: 0, updated: 0 })
     expect(
       Schema.encodeSync(Session.Info)({
-        id: Session.ID.make("ses_untitled"),
-        projectID: Project.ID.make("global"),
-        cost: Money.USD.zero,
-        tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
-        time: { created: DateTime.makeUnsafe(0), updated: DateTime.makeUnsafe(0) },
-        title: undefined,
-        location: { directory: AbsolutePath.make("/project") },
-      }),
-    ).not.toHaveProperty("title")
+        ...info,
+        time: { ...info.time, idle: DateTime.makeUnsafe(2), viewed: DateTime.makeUnsafe(1) },
+      }).time,
+    ).toEqual({ created: 0, updated: 0, idle: 2, viewed: 1 })
   })
 
   test("session inbox items omit the internal enqueue sequence", () => {

packages/schema/test/event-manifest.test.ts

@@ -83,6 +83,7 @@ describe("public event manifest", () => {
         "session.model.selected.1",
         "session.moved.1",
         "session.renamed.1",
+        "session.viewed.1",
         "session.usage.recorded.1",
         "session.forked.2",
         "session.inbox.delivered.1",

packages/server/src/handlers/session.ts

@@ -180,6 +180,22 @@ export const SessionHandler = HttpApiBuilder.group(Api, "server.session", (handl
           }
         }),
       )
+      .handle(
+        "session.view",
+        Effect.fn(function* (ctx) {
+          yield* session.view({ sessionID: ctx.params.sessionID }).pipe(
+            Effect.catchTag(
+              "Session.NotFoundError",
+              (error) =>
+                new SessionNotFoundError({
+                  sessionID: error.sessionID,
+                  message: `Session not found: ${error.sessionID}`,
+                }),
+            ),
+          )
+          return HttpApiSchema.NoContent.make()
+        }),
+      )
       .handle(
         "session.remove",
         Effect.fn(function* (ctx) {

packages/server/test/fetch.test.ts

@@ -52,6 +52,36 @@ it.live("serves unauthenticated and answers CORS preflight when no password is c
   }).pipe(Effect.scoped),
 )
 
+it.live("serves the session view operation and missing-session error", () =>
+  Effect.gen(function* () {
+    const handler = yield* ServerFetch.make(options)
+    const created = yield* Effect.promise(() =>
+      handler(
+        new Request("http://opencode.local/api/session", {
+          method: "POST",
+          headers: { "content-type": "application/json" },
+          body: "{}",
+        }),
+      ).then((response) => response.json()),
+    )
+    if (typeof created !== "object" || created === null || !("data" in created))
+      return yield* Effect.die(new Error("Expected a session response"))
+    const data = created.data
+    if (typeof data !== "object" || data === null || !("id" in data) || typeof data.id !== "string")
+      return yield* Effect.die(new Error("Expected a session ID"))
+
+    const viewed = yield* Effect.promise(() =>
+      handler(new Request(`http://opencode.local/api/session/${data.id}/view`, { method: "POST" })),
+    )
+    expect(viewed.status).toBe(204)
+
+    const missing = yield* Effect.promise(() =>
+      handler(new Request("http://opencode.local/api/session/ses_missing_view/view", { method: "POST" })),
+    )
+    expect(missing.status).toBe(404)
+  }).pipe(Effect.scoped),
+)
+
 // Pins the eager-boot guarantee: the application layer is built before the handler returns, so
 // an aborted first request cannot interrupt layer construction and wedge every later request
 // (the Effect-TS/effect#6319 failure class that lazy first-request builds are prone to).

packages/tui/src/component/dialog-experiments.tsx

@@ -13,13 +13,7 @@ type Experiment = {
 // In-flight features anyone can opt into. Each entry is temporary: an
 // experiment either graduates (delete the entry, make the behavior
 // unconditional) or dies (delete the entry and the branch it gated).
-export const experiments: Experiment[] = [
-  {
-    id: "tab_scroll",
-    title: "Remember tab scroll",
-    description: "Keep each open tab's reading position and show a shortcut back to the bottom.",
-  },
-]
+export const experiments: Experiment[] = []
 
 export function DialogExperiments() {
   const config = useConfig()

packages/tui/src/context/client.tsx

@@ -1,177 +1,39 @@
 import type { OpenCodeClient, OpenCodeEvent } from "@opencode-ai/client"
+import { createClientConnection } from "@opencode-ai/client/solid"
 import { createGlobalEmitter } from "@solid-primitives/event-bus"
-import { batch, onCleanup, onMount } from "solid-js"
-import { createStore } from "solid-js/store"
-import { errorMessage } from "../util/error"
+import { onCleanup } from "solid-js"
 import { createSimpleContext } from "./helper"
 import { useLog } from "./log"
 
-export type ClientConnectionStatus = "connected" | "connecting" | "reconnecting"
-export type ClientConnectionEvent = {
-  readonly type: "client.connection"
-  readonly created: number
-  readonly data: {
-    readonly status: "connecting" | "connected" | "disconnected" | "reconnecting"
-    readonly attempt: number
-    readonly error?: string
-  }
-}
-
 type ManagedService = {
   reconnect: (signal: AbortSignal) => Promise<{ api: OpenCodeClient }>
   restart: () => Promise<void>
 }
 
 type ClientEventMap = { [Type in OpenCodeEvent["type"]]: Extract<OpenCodeEvent, { type: Type }> }
-const connectTimeout = 2_000
-const connectionHistoryLimit = 50
-const eventFlushInterval = 10
 
 export const { use: useClient, provider: ClientProvider } = createSimpleContext({
   name: "Client",
   init: (props: { api: OpenCodeClient; service?: ManagedService }) => {
     const log = useLog({ component: "client" })
-    const abort = new AbortController()
-    const history: ClientConnectionEvent[] = []
-    let api = props.api
+    const service = props.service
     const events = createGlobalEmitter<ClientEventMap>()
-    let pending: OpenCodeEvent[] = []
-    let flushTimer: ReturnType<typeof setTimeout> | undefined
-    const [connection, setConnection] = createStore<{
-      status: ClientConnectionStatus
-      attempt: number
-      error?: string
-    }>({
-      status: "connecting",
-      attempt: 0,
-    })
-    let stream: AbortController | undefined
+    let api = props.api
 
-    function record(status: ClientConnectionEvent["data"]["status"], attempt: number, error?: string) {
-      history.push({ type: "client.connection", created: Date.now(), data: { status, attempt, error } })
-      if (history.length > connectionHistoryLimit) history.shift()
-    }
-
-    function flushEvents() {
-      flushTimer = undefined
-      const queued = pending
-      pending = []
-      batch(() => queued.forEach((event) => events.emit(event.type, event)))
-    }
-
-    function emit(event: OpenCodeEvent) {
-      pending.push(event)
-      if (flushTimer) return
-      flushTimer = setTimeout(flushEvents, eventFlushInterval)
-    }
-
-    async function connect(signal: AbortSignal, attempt: number) {
-      let connectedAt: number | undefined
-
-      // Bound the initial handshake and tie this request to the stream lifetime.
-      const request = new AbortController()
-      const cancel = () => request.abort(signal.reason)
-      const timeout = setTimeout(() => request.abort(new Error("Timed out connecting to server")), connectTimeout)
-      signal.addEventListener("abort", cancel, { once: true })
-
-      try {
-        // Open the event stream and validate its initial handshake.
-        record(attempt === 0 ? "connecting" : "reconnecting", attempt)
-        log.info("event stream connecting", { attempt })
-
-        const iterator = api.event.subscribe({ signal: request.signal })[Symbol.asyncIterator]()
-        const first = await iterator.next()
-
-        if (signal.aborted) return { error: undefined, connectedAt }
-        if (first.done) {
-          const error =
-            request.signal.reason instanceof Error ? request.signal.reason : new Error("Event stream disconnected")
-          return { error, connectedAt }
-        }
-        if (first.value.type !== "server.connected")
-          return { error: new Error("Event stream did not start with server.connected"), connectedAt }
-
-        // Publish the connected state before forwarding live events.
-        clearTimeout(timeout)
-        record("connected", attempt)
-        connectedAt = Date.now()
-        log.info("event stream connected")
-        emit(first.value)
-        setConnection({ status: "connected", attempt: 0, error: undefined })
-
-        // Forward events until the stream closes or this connection is cancelled.
-        while (!signal.aborted) {
-          const event = await iterator.next()
-
-          if (signal.aborted) return { error: undefined, connectedAt }
-          if (event.done) return { error: new Error("Event stream disconnected"), connectedAt }
-
-          if ("durable" in event.value)
-            log.debug("event", {
-              type: event.value.type,
-              aggregateID: event.value.durable.aggregateID,
-              seq: event.value.durable.seq,
-            })
-
-          emit(event.value)
-        }
-
-        return { error: undefined, connectedAt }
-      } catch (error) {
-        return { error, connectedAt }
-      } finally {
-        request.abort()
-        clearTimeout(timeout)
-        signal.removeEventListener("abort", cancel)
-      }
-    }
-
-    function start() {
-      stream?.abort()
-      const controller = new AbortController()
-      stream = controller
-      void (async () => {
-        let attempt = 0
-        while (!abort.signal.aborted && !controller.signal.aborted) {
-          const result = await connect(controller.signal, attempt)
-          if (abort.signal.aborted || controller.signal.aborted) return
-          if (result.connectedAt !== undefined && Date.now() - result.connectedAt >= 1_000) attempt = 0
-          attempt += 1
-          const message = errorMessage(result.error)
-          record("disconnected", attempt, message)
-          log.info("event stream disconnected", {
-            attempt,
-            error: message,
-          })
-          setConnection({ status: "reconnecting", attempt, error: message })
-          // Re-resolve the transport before retrying: the server may have
-          // moved (service restarted on a new port) or need starting. Static
-          // transports (--server, standalone) resolve to the same address.
-          if (props.service) {
-            const next = await props.service.reconnect(controller.signal).catch((error) => {
-              if (!controller.signal.aborted)
-                log.info("server resolution failed", {
-                  attempt,
-                  error: errorMessage(error),
-                })
-            })
-            if (abort.signal.aborted || controller.signal.aborted) return
-            if (next) {
-              api = next.api
-              if (attempt === 1) continue
-            }
+    const connection = createClientConnection(api, {
+      reconnect: service
+        ? async (signal) => {
+            api = (await service.reconnect(signal)).api
+            return api
           }
-          await wait(1_000, controller.signal)
-        }
-      })()
-    }
+        : undefined,
+      onEvent(event) {
+        events.emit(event.type, event)
+      },
+      log,
+    })
 
-    onMount(start)
     onCleanup(() => {
-      abort.abort()
-      stream?.abort()
-      if (flushTimer) clearTimeout(flushTimer)
-      pending = []
       events.clear()
     })
 
@@ -183,35 +45,8 @@ export const { use: useClient, provider: ClientProvider } = createSimpleContext(
         on: events.on,
         listen: events.listen,
       },
-      connection: {
-        status() {
-          return connection.status
-        },
-        attempt() {
-          return connection.attempt
-        },
-        error() {
-          return connection.error
-        },
-        internal: {
-          history() {
-            return history.slice()
-          },
-        },
-      },
-      restart: props.service?.restart,
+      connection,
+      restart: service?.restart,
     }
   },
 })
-
-function wait(delay: number, signal: AbortSignal) {
-  return new Promise<void>((resolve) => {
-    const timer = setTimeout(done, delay)
-    signal.addEventListener("abort", done, { once: true })
-    function done() {
-      clearTimeout(timer)
-      signal.removeEventListener("abort", done)
-      resolve()
-    }
-  })
-}

packages/tui/src/context/session-tabs.tsx

@@ -25,12 +25,12 @@ import {
   type ClosedSessionTab,
   type SessionTab,
   type SessionTabHistory,
-  type SessionTabUnread,
 } from "./session-tabs-model"
 
 type TabsState = {
   tabs: SessionTab[]
-  unread: Record<string, SessionTabUnread>
+  // Read only long enough to remove the former client-owned state from persisted tab files.
+  unread?: Record<string, unknown>
 }
 
 type PersistedState = {
@@ -43,7 +43,7 @@ type ScrollAnchor = {
   screenY: number
 }
 
-const empty = (): TabsState => ({ tabs: [], unread: {} })
+const empty = (): TabsState => ({ tabs: [] })
 
 // Deliberately after connect settles: the visible session's mount syncs win the first slots.
 const TAB_PREFETCH_DELAY = 300
@@ -60,7 +60,7 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
     const paths = useTuiPaths()
     const renderer = useRenderer()
     const enabled = () => config.tabs.enabled
-    // Focus reporting emits transitions, so an interactive launch owns unread state until its first blur.
+    // Focus reporting emits transitions, so an interactive launch may acknowledge viewed sessions until its first blur.
     const [focused, setFocused] = createSignal(true)
     // Keyed reconcile keeps tab object identity across reorders, so strip rows move instead of
     // mutating in place, which per-row animations and drag state depend on.
@@ -87,11 +87,6 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       renderer.off("blur", onBlur)
     })
 
-    createEffect(() => {
-      if (config.experimental?.tab_scroll === true) return
-      scrollAnchors.clear()
-    })
-
     function state() {
       if (config.tabs.scope === "cwd") return store.cwd[paths.cwd] ?? fallback
       return store.global
@@ -110,16 +105,15 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       const session = data.session.get(sessionID)
       return session?.title ?? persisted ?? fallback ?? (session ? withTimestampedFallback(session) : undefined)
     }
+    const isUnread = (sessionID: string) => {
+      const info = data.session.get(sessionID)
+      return info?.time.idle !== undefined && (info.time.viewed === undefined || info.time.idle > info.time.viewed)
+    }
     const normalize = (value: TabsState) => ({
       tabs: value.tabs.reduce<SessionTab[]>((tabs, tab) => {
         const sessionID = root(tab.sessionID)
         return openSessionTab(tabs, { sessionID, title: title(sessionID, tab.title) })
       }, []),
-      unread: Object.entries(value.unread).reduce<Record<string, SessionTabUnread>>((result, entry) => {
-        const sessionID = root(entry[0])
-        result[sessionID] = result[sessionID] === "error" ? "error" : entry[1]
-        return result
-      }, {}),
     })
     const current = () => (route.data.type === "session" ? root(route.data.sessionID) : undefined)
     const newTab = createMemo((open = false) => {
@@ -133,7 +127,7 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       const members = data.session.family(session)
       const family = members.length > 0 ? members : [session]
       return {
-        unread: state().unread[session],
+        unread: family.some(isUnread) ? ("activity" as const) : undefined,
         promptPulse: promptPulses()[session] ?? 0,
         attention: family.some(
           (id) => (data.session.permission.list(id)?.length ?? 0) > 0 || (data.session.form.list(id)?.length ?? 0) > 0,
@@ -142,17 +136,6 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       }
     }
 
-    function markUnread(sessionID: string, unread: SessionTabUnread) {
-      if (!enabled() || !focused()) return
-      const session = root(sessionID)
-      if (current() === session || !state().tabs.some((tab) => tab.sessionID === session)) return
-      if (state().unread[session] === unread) return
-      update((draft) => {
-        if (!draft.tabs.some((tab) => tab.sessionID === session)) return
-        draft.unread[session] = unread
-      })
-    }
-
     createEffect(() => {
       if (!enabled()) return
       if (route.data.type !== "session" || route.data.sessionID === "dummy") return
@@ -176,10 +159,11 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       if (!enabled() || !focused()) return
       if (route.data.type !== "session" || route.data.sessionID === "dummy") return
       const sessionID = root(route.data.sessionID)
-      if (!state().unread[sessionID]) return
-      update((draft) => {
-        delete draft.unread[sessionID]
-      })
+      const members = data.session.family(sessionID)
+      const family = members.length > 0 ? members : [sessionID]
+      const unread = family.filter(isUnread)
+      if (unread.length === 0) return
+      void Promise.allSettled(unread.map((id) => client.api.session.view({ sessionID: id })))
     })
 
     createEffect(() => {
@@ -189,7 +173,7 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       update((draft) => {
         const next = normalize(draft)
         draft.tabs = next.tabs
-        draft.unread = next.unread
+        delete draft.unread
       })
     })
 
@@ -210,7 +194,7 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       const sessionIDs = signature.split("\n")
       let stale = false
       void (async () => {
-        await Promise.allSettled(sessionIDs.map((sessionID) => data.session.sync(sessionID)))
+        await Promise.allSettled(sessionIDs.map((sessionID) => data.session.sync(sessionID, { children: true })))
         if (stale) return
         const locations = new Map(
           sessionIDs
@@ -244,9 +228,6 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       })
     })
 
-    onCleanup(event.on("session.execution.succeeded", (evt) => markUnread(evt.data.sessionID, "activity")))
-    onCleanup(event.on("session.execution.interrupted", (evt) => markUnread(evt.data.sessionID, "activity")))
-    onCleanup(event.on("session.execution.failed", (evt) => markUnread(evt.data.sessionID, "error")))
     onCleanup(
       event.on("session.moved", (evt) => {
         if (!enabled() || !state().tabs.some((tab) => tab.sessionID === root(evt.data.sessionID))) return
@@ -282,7 +263,6 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       history = previous.history
       update((draft) => {
         draft.tabs = closeSessionTab(draft.tabs, target).tabs
-        delete draft.unread[target]
       })
       setPromptPulses((pulses) => {
         if (pulses[target] === undefined) return pulses
@@ -378,7 +358,7 @@ export const { use: useSessionTabs, provider: SessionTabsProvider } = createSimp
       cycleUnread(direction: 1 | -1) {
         if (!enabled()) return
         const tab = cycleSessionTab(state().tabs, current(), direction, (tab) =>
-          Boolean(state().unread[tab.sessionID] || status(tab.sessionID).attention),
+          Boolean(status(tab.sessionID).unread || status(tab.sessionID).attention),
         )
         if (tab) route.navigate({ type: "session", sessionID: tab.sessionID })
       },

packages/tui/src/routes/session/index.tsx

@@ -429,7 +429,6 @@ export function Session(props: { verticalTabsWidth: number }) {
     return scroll.scrollTop < Math.max(0, scroll.scrollHeight - scroll.viewport.height) - 1
   }
   function updateAwayFromBottom() {
-    if (config.experimental?.tab_scroll !== true) return
     if (awayTimer) clearTimeout(awayTimer)
     awayTimer = setTimeout(() => {
       awayTimer = undefined
@@ -440,7 +439,7 @@ export function Session(props: { verticalTabsWidth: number }) {
     })
   }
   function saveScrollAnchor() {
-    if (config.experimental?.tab_scroll !== true || !isAwayFromBottom()) {
+    if (!isAwayFromBottom()) {
       sessionTabs.setScrollAnchor(sessionID, undefined)
       return
     }
@@ -457,7 +456,7 @@ export function Session(props: { verticalTabsWidth: number }) {
     else sessionTabs.setScrollAnchor(sessionID, undefined)
   }
   function restoreScrollPosition() {
-    const anchor = config.experimental?.tab_scroll === true ? sessionTabs.scrollAnchor(sessionID) : undefined
+    const anchor = sessionTabs.scrollAnchor(sessionID)
     const index = anchor ? boundaries().indexOf(anchor.messageID) : -1
     if (!anchor || index === -1) {
       scroll.scrollTo(scroll.scrollHeight)
@@ -1195,15 +1194,21 @@ export function Session(props: { verticalTabsWidth: number }) {
               </scrollbox>
             </box>
             <box height={1} flexShrink={0} flexDirection="row" justifyContent="flex-end">
-              <Show when={config.experimental?.tab_scroll === true && awayFromBottom()}>
-                <text
-                  fg={latestHovered() ? theme.text.default : theme.text.subdued}
+              <Show when={awayFromBottom()}>
+                <box
+                  paddingLeft={1}
+                  paddingRight={1}
+                  backgroundColor={
+                    latestHovered() ? theme.background.action.primary.focused : theme.background.action.primary.default
+                  }
                   onMouseOver={() => setLatestHovered(true)}
                   onMouseOut={() => setLatestHovered(false)}
                   onMouseUp={toBottom}
                 >
-                  Latest ↓
-                </text>
+                  <text fg={latestHovered() ? theme.text.action.primary.focused : theme.text.action.primary.default}>
+                    Jump to latest ↓
+                  </text>
+                </box>
               </Show>
             </box>
             <box flexShrink={0}>

packages/tui/test/context/session-tabs.test.tsx

@@ -35,6 +35,8 @@ async function renderSessionTabs(
     persisted?: string[]
     sessionGate?: Promise<void>
     sessionDirectories?: Record<string, string>
+    sessionParents?: Record<string, string>
+    sessionTimes?: Record<string, { idle?: number; viewed?: number }>
     newLocation?: "launch" | "inherit"
   },
 ) {
@@ -53,9 +55,13 @@ async function renderSessionTabs(
   }
   const events = createEventStream()
   const sessions: string[] = []
+  const views: string[] = []
   const locations: string[] = []
   const vcsLocations: string[] = []
-  const calls = createFetch(async (url) => {
+  const sessionTimes = Object.fromEntries(
+    Object.entries(options?.sessionTimes ?? {}).map(([sessionID, time]) => [sessionID, { ...time }]),
+  )
+  const calls = createFetch(async (url, request) => {
     if (url.pathname === "/api/location") {
       const requested = url.searchParams.get("location[directory]") ?? directory
       locations.push(requested)
@@ -72,6 +78,13 @@ async function renderSessionTabs(
         data: { branch: { current: "main", default: "main" } },
       })
     }
+    const viewed = url.pathname.match(/^\/api\/session\/([^/]+)\/view$/)?.[1]
+    if (viewed && request.method === "POST") {
+      views.push(viewed)
+      const time = (sessionTimes[viewed] ??= {})
+      time.viewed = time.idle
+      return new Response(null, { status: 204 })
+    }
     const sessionID = url.pathname.match(/^\/api\/session\/([^/]+)$/)?.[1]
     if (!sessionID) return undefined
     sessions.push(sessionID)
@@ -79,12 +92,13 @@ async function renderSessionTabs(
     return json({
       data: {
         id: sessionID,
+        parentID: options?.sessionParents?.[sessionID],
         title: sessionID === initialSessionID ? options?.title : undefined,
         projectID: "project",
         location: { directory: options?.sessionDirectories?.[sessionID] ?? directory },
         cost: 0,
         tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
-        time: { created: 0, updated: 0 },
+        time: { created: 0, updated: 0, ...sessionTimes[sessionID] },
       },
     })
   }, events)
@@ -138,9 +152,13 @@ async function renderSessionTabs(
     route,
     data,
     sessions,
+    views,
     locations,
     vcsLocations,
     state,
+    setSessionTime(sessionID: string, time: { idle?: number; viewed?: number }) {
+      sessionTimes[sessionID] = time
+    },
     emit: (event: OpenCodeEvent) => events.emit({ ...event, location: { directory } }),
     focus: () => app.renderer.emit("focus"),
     blur: () => app.renderer.emit("blur"),
@@ -153,14 +171,6 @@ async function renderSessionTabs(
   }
 }
 
-const executionSucceeded = (sessionID: string): OpenCodeEvent => ({
-  id: `evt_done_${sessionID}`,
-  created: Date.now(),
-  type: "session.execution.succeeded",
-  durable: { aggregateID: sessionID, seq: 1, version: 1 },
-  data: { sessionID },
-})
-
 test("loads persisted tab metadata concurrently on connect", async () => {
   let release!: () => void
   const sessionGate = new Promise<void>((resolve) => (release = resolve))
@@ -230,56 +240,111 @@ test("stores session tabs for the current working directory by default", async (
     const file = path.join(setup.state, "test", "tui", "tabs.json")
     await wait(() => Bun.file(file).size > 0)
     const stored = await Bun.file(file).json()
-    expect(stored.global).toEqual({ tabs: [], unread: {} })
+    expect(stored.global).toEqual({ tabs: [] })
     expect(Object.keys(stored.cwd)).toEqual([directory])
     expect(stored.cwd[directory].tabs.map((tab: { sessionID: string }) => tab.sessionID)).toEqual(["first"])
-    expect(stored.cwd[directory].unread).toEqual({})
+    expect(stored.cwd[directory]).not.toHaveProperty("unread")
   } finally {
     await setup.destroy()
   }
 })
 
-test("only the foreground TUI mutates unread state", async () => {
-  await using temporary = await tmpdir()
-  let foreground: Awaited<ReturnType<typeof renderSessionTabs>> | undefined
-  let background: Awaited<ReturnType<typeof renderSessionTabs>> | undefined
+test("keeps scroll anchors for open session tabs", async () => {
+  const setup = await renderSessionTabs("first")
 
   try {
-    foreground = await renderSessionTabs("first", { state: temporary.path, persisted: ["first", "second"] })
-    background = await renderSessionTabs("second", { state: temporary.path })
-    foreground.focus()
-    background.blur()
-    await wait(() => foreground?.tabs.tabs().length === 2 && background?.tabs.tabs().length === 2, 2_000, "shared tabs")
+    await wait(() => setup.tabs.current() === "first")
+    setup.tabs.setScrollAnchor("first", { messageID: "msg_1", screenY: -3 })
 
-    const firstDone = executionSucceeded("first")
-    foreground.emit(firstDone)
-    background.emit(firstDone)
-    await Promise.all([foreground.flush(), background.flush()])
-    expect(foreground.tabs.status("first").unread).toBeUndefined()
-    expect(background.tabs.status("first").unread).toBeUndefined()
+    expect(setup.tabs.scrollAnchor("first")).toEqual({ messageID: "msg_1", screenY: -3 })
 
-    const secondDone = executionSucceeded("second")
-    foreground.emit(secondDone)
-    background.emit(secondDone)
-    await wait(
-      () =>
-        foreground?.tabs.status("second").unread === "activity" &&
-        background?.tabs.status("second").unread === "activity",
-      10_000,
-      "shared unread activity",
-    )
-
-    foreground.tabs.select("second")
-    await wait(
-      () =>
-        foreground?.tabs.status("second").unread === undefined &&
-        background?.tabs.status("second").unread === undefined,
-      10_000,
-      "shared unread clearing",
-    )
+    setup.tabs.close("first")
+    await wait(() => setup.tabs.tabs().every((tab) => tab.sessionID !== "first"))
+    expect(setup.tabs.scrollAnchor("first")).toBeUndefined()
   } finally {
-    if (foreground) await foreground.destroy()
-    if (background) await background.destroy()
+    await setup.destroy()
+  }
+})
+
+test("derives unread state from server session times", async () => {
+  const setup = await renderSessionTabs("first", {
+    home: true,
+    persisted: ["first", "second"],
+    sessionTimes: { second: { idle: 2 } },
+  })
+  try {
+    await wait(() => setup.tabs.status("second").unread === "activity")
+    expect(setup.tabs.status("first").unread).toBeUndefined()
+  } finally {
+    await setup.destroy()
+  }
+})
+
+test("refreshes server session times after terminal events", async () => {
+  const setup = await renderSessionTabs("first", { home: true, persisted: ["first"] })
+  try {
+    setup.setSessionTime("first", { idle: 2 })
+    setup.emit({
+      id: "evt_done_first",
+      created: 2,
+      type: "session.execution.succeeded",
+      durable: { aggregateID: "first", seq: 1, version: 1 },
+      data: { sessionID: "first" },
+    })
+    await wait(() => setup.tabs.status("first").unread === "activity")
+  } finally {
+    await setup.destroy()
+  }
+})
+
+test("views a selected unread session only while focused", async () => {
+  const setup = await renderSessionTabs("first", {
+    home: true,
+    persisted: ["first"],
+    sessionTimes: { first: { idle: 2 } },
+  })
+  try {
+    setup.blur()
+    setup.route.navigate({ type: "session", sessionID: "first" })
+    await wait(() => setup.tabs.current() === "first" && setup.tabs.status("first").unread === "activity")
+    await Bun.sleep(20)
+    expect(setup.views).toEqual([])
+
+    setup.focus()
+    await wait(() => setup.views.includes("first"))
+    setup.emit({
+      id: "evt_viewed_first",
+      created: 3,
+      type: "session.viewed",
+      durable: { aggregateID: "first", seq: 2, version: 1 },
+      data: { sessionID: "first" },
+    })
+    await wait(() => setup.tabs.status("first").unread === undefined)
+  } finally {
+    await setup.destroy()
+  }
+})
+
+test("views unread child sessions through their root tab", async () => {
+  const setup = await renderSessionTabs("root", {
+    home: true,
+    persisted: ["root"],
+    sessionParents: { child: "root" },
+    sessionTimes: { child: { idle: 2 } },
+  })
+  try {
+    setup.blur()
+    await setup.data.session.sync("child")
+    await wait(() => setup.tabs.status("root").unread === "activity")
+
+    setup.route.navigate({ type: "session", sessionID: "root" })
+    await Bun.sleep(20)
+    expect(setup.views).toEqual([])
+    setup.focus()
+    await wait(() => setup.views.includes("child"))
+    expect(setup.views).not.toContain("root")
+  } finally {
+    await setup.destroy()
   }
 })
 

packages/ui/src/components/animated-number.css

@@ -17,7 +17,7 @@
   }
 
   [data-slot="animated-number-digit"] {
-    display: inline-block;
+    display: inline-grid;
     width: 1ch;
     height: 1em;
     line-height: 1em;
@@ -41,19 +41,12 @@
     mask-repeat: no-repeat;
   }
 
+  [data-slot="animated-number-static"],
   [data-slot="animated-number-strip"] {
-    display: inline-flex;
-    flex-direction: column;
-    transform: translateY(calc(var(--animated-number-offset, 10) * -1em));
-    transition-property: transform;
-    transition-duration: var(--animated-number-duration, 560ms);
-    transition-timing-function: var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1));
-  }
-
-  [data-slot="animated-number-strip"][data-animating="false"] {
-    transition-duration: 0ms;
+    grid-area: 1 / 1;
   }
 
+  [data-slot="animated-number-static"],
   [data-slot="animated-number-cell"] {
     display: inline-flex;
     align-items: center;
@@ -62,6 +55,24 @@
     height: 1em;
     line-height: 1em;
   }
+
+  [data-slot="animated-number-digit"][data-animating="true"] [data-slot="animated-number-static"] {
+    visibility: hidden;
+  }
+
+  [data-slot="animated-number-strip"] {
+    display: inline-flex;
+    flex-direction: column;
+    margin-top: calc(var(--animated-number-offset, 10) * -1em);
+    transition-property: margin-top;
+    transition-duration: var(--animated-number-duration, 560ms);
+    transition-timing-function: var(--tool-motion-ease, cubic-bezier(0.22, 1, 0.36, 1));
+  }
+
+  [data-slot="animated-number-digit"][data-animating="false"] [data-slot="animated-number-strip"] {
+    transition-duration: 0ms;
+    visibility: hidden;
+  }
 }
 
 @media (prefers-reduced-motion: reduce) {
@@ -71,5 +82,12 @@
 
   [data-component="animated-number"] [data-slot="animated-number-strip"] {
     transition-duration: 0ms;
+    visibility: hidden;
+  }
+
+  [data-component="animated-number"]
+    [data-slot="animated-number-digit"][data-animating]
+    [data-slot="animated-number-static"] {
+    visibility: visible;
   }
 }

packages/ui/src/components/animated-number.tsx

@@ -43,10 +43,10 @@ function Digit(props: { value: number; direction: 1 | -1 }) {
   )
 
   return (
-    <span data-slot="animated-number-digit">
+    <span data-slot="animated-number-digit" data-animating={animating() ? "true" : "false"}>
+      <span data-slot="animated-number-static">{props.value}</span>
       <span
         data-slot="animated-number-strip"
-        data-animating={animating() ? "true" : "false"}
         onTransitionEnd={() => {
           setState("animating", false)
           setState("step", (value) => normalize(value) + 10)

packages/www/content/docs/(Configure)/models.mdx

@@ -152,6 +152,112 @@ provider and model configuration. An unknown variant fails model resolution inst
 
 ### Local models
 
+#### Ollama
+
+OpenCode automatically discovers language models from an Ollama server listening on its default address,
+`http://127.0.0.1:11434`. Discovered models use the `ollama` provider ID and Ollama's model name:
+
+```jsonc title="opencode.jsonc"
+{
+  "$schema": "https://opencode.ai/config.json",
+  "model": "ollama/gemma3:4b",
+}
+```
+
+OpenCode refreshes the inventory in the background and reads context, vision, and tool-use capabilities from Ollama.
+Embedding-only models are excluded because they cannot drive a session. Disable discovery with
+`"plugins": ["-opencode.provider.ollama"]`.
+
+For a different host or port, configure Ollama's OpenAI-compatible base URL. Models are still discovered through the
+native Ollama API at the same path prefix:
+
+```jsonc title="opencode.jsonc"
+{
+  "$schema": "https://opencode.ai/config.json",
+  "providers": {
+    "ollama": {
+      "settings": {
+        "baseURL": "http://127.0.0.1:5678/v1",
+        "apiKey": "{env:OLLAMA_API_KEY}",
+      },
+    },
+  },
+}
+```
+
+Omit `apiKey` when the Ollama endpoint does not require bearer authentication.
+
+#### LM Studio
+
+OpenCode automatically discovers language models from an unauthenticated LM Studio server listening on its default
+address, `http://127.0.0.1:1234`. Discovered models use the `lmstudio` provider ID and LM Studio's model key:
+
+```jsonc title="opencode.jsonc"
+{
+  "$schema": "https://opencode.ai/config.json",
+  "model": "lmstudio/google/gemma-4-26b-a4b",
+}
+```
+
+OpenCode refreshes the inventory in the background and reads context, vision, and tool-use capabilities from LM
+Studio. Embedding models are excluded because they cannot drive a session. Disable discovery with
+`"plugins": ["-opencode.provider.lmstudio"]`.
+
+For a different host or port, configure the OpenAI-compatible base URL. Models are still discovered automatically:
+
+```jsonc title="opencode.jsonc"
+{
+  "$schema": "https://opencode.ai/config.json",
+  "providers": {
+    "lmstudio": {
+      "settings": {
+        "baseURL": "http://127.0.0.1:5678/v1",
+        "apiKey": "{env:LMSTUDIO_API_KEY}",
+      },
+    },
+  },
+}
+```
+
+Omit `apiKey` when LM Studio authentication is disabled.
+
+#### vLLM
+
+OpenCode automatically discovers models from a vLLM server listening on its default address, `http://127.0.0.1:8000`.
+Discovered models use the `vllm` provider ID and the model ID reported by vLLM:
+
+```jsonc title="opencode.jsonc"
+{
+  "$schema": "https://opencode.ai/config.json",
+  "model": "vllm/Qwen/Qwen3-Coder-30B-A3B-Instruct",
+}
+```
+
+OpenCode checks vLLM's `/health` endpoint and refreshes `/v1/models` in the background. It uses the reported
+`max_model_len` as the context limit and only includes model cards owned by `vllm`. Discovered vLLM models advertise
+text input and output, but not vision or tools. Tool calling is conservative because vLLM enables it with server-level
+flags such as `--enable-auto-tool-choice` and `--tool-call-parser`, which model discovery does not report. Disable
+discovery with `"plugins": ["-opencode.provider.vllm"]`.
+
+For a different endpoint or an authenticated server, configure its OpenAI-compatible base URL:
+
+```jsonc title="opencode.jsonc"
+{
+  "$schema": "https://opencode.ai/config.json",
+  "providers": {
+    "vllm": {
+      "settings": {
+        "baseURL": "http://127.0.0.1:9000/v1",
+        "apiKey": "{env:VLLM_API_KEY}",
+      },
+    },
+  },
+}
+```
+
+Omit `apiKey` when authentication is disabled. Path-prefixed proxy URLs are supported; for example,
+`https://example.com/vllm/v1` checks `/vllm/health` and discovers `/vllm/v1/models`.
+
 For an OpenAI-compatible server, define a provider package, endpoint, and at least one model:
 
 ```jsonc title="opencode.jsonc"
@@ -161,7 +267,7 @@ For an OpenAI-compatible server, define a provider package, endpoint, and at lea
   "providers": {
     "local": {
       "name": "Local server",
-      "package": "aisdk:@ai-sdk/openai-compatible",
+      "package": "@opencode-ai/ai/providers/openai-compatible",
       "settings": {
         "baseURL": "http://127.0.0.1:1234/v1",
       },

packages/www/openapi.json

@@ -4127,6 +4127,65 @@
         "summary": "Get session message"
       }
     },
+    "/api/session/{sessionID}/view": {
+      "post": {
+        "tags": ["session"],
+        "operationId": "v2.session.view",
+        "parameters": [
+          {
+            "name": "sessionID",
+            "in": "path",
+            "schema": {
+              "type": "string",
+              "allOf": [
+                {
+                  "pattern": "^ses"
+                }
+              ]
+            },
+            "required": true
+          }
+        ],
+        "security": [],
+        "responses": {
+          "204": {
+            "description": "<No Content>"
+          },
+          "400": {
+            "description": "InvalidRequestError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/InvalidRequestError"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "UnauthorizedError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UnauthorizedError"
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "SessionNotFoundError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/SessionNotFoundError"
+                }
+              }
+            }
+          }
+        },
+        "description": "Mark the latest recorded idle transition as viewed.",
+        "summary": "View session"
+      }
+    },
     "/api/session/{sessionID}/message": {
       "get": {
         "tags": ["session"],
@@ -12135,6 +12194,12 @@
               "updated": {
                 "type": "number"
               },
+              "idle": {
+                "type": "number"
+              },
+              "viewed": {
+                "type": "number"
+              },
               "archived": {
                 "type": "number"
               }
@@ -14276,6 +14341,71 @@
         "required": ["id", "created", "type", "durable", "data"],
         "additionalProperties": false
       },
+      "session.viewed": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string",
+            "allOf": [
+              {
+                "pattern": "^evt_"
+              }
+            ]
+          },
+          "created": {
+            "type": "number"
+          },
+          "metadata": {
+            "type": "object"
+          },
+          "type": {
+            "type": "string",
+            "enum": ["session.viewed"]
+          },
+          "durable": {
+            "type": "object",
+            "properties": {
+              "aggregateID": {
+                "type": "string"
+              },
+              "seq": {
+                "type": "integer",
+                "allOf": [
+                  {
+                    "minimum": 0
+                  }
+                ]
+              },
+              "version": {
+                "type": "number",
+                "enum": [1]
+              }
+            },
+            "required": ["aggregateID", "seq", "version"],
+            "additionalProperties": false
+          },
+          "location": {
+            "$ref": "#/components/schemas/Location.Ref"
+          },
+          "data": {
+            "type": "object",
+            "properties": {
+              "sessionID": {
+                "type": "string",
+                "allOf": [
+                  {
+                    "pattern": "^ses"
+                  }
+                ]
+              }
+            },
+            "required": ["sessionID"],
+            "additionalProperties": false
+          }
+        },
+        "required": ["id", "created", "type", "durable", "data"],
+        "additionalProperties": false
+      },
       "session.deleted": {
         "type": "object",
         "properties": {
@@ -17296,6 +17426,9 @@
           {
             "$ref": "#/components/schemas/session.renamed"
           },
+          {
+            "$ref": "#/components/schemas/session.viewed"
+          },
           {
             "$ref": "#/components/schemas/session.deleted"
           },
@@ -22664,6 +22797,9 @@
           {
             "$ref": "#/components/schemas/session.renamed"
           },
+          {
+            "$ref": "#/components/schemas/session.viewed"
+          },
           {
             "$ref": "#/components/schemas/session.usage.updated"
           },

packages/www/public/openapi.json

@@ -4127,6 +4127,65 @@
         "summary": "Get session message"
       }
     },
+    "/api/session/{sessionID}/view": {
+      "post": {
+        "tags": ["session"],
+        "operationId": "v2.session.view",
+        "parameters": [
+          {
+            "name": "sessionID",
+            "in": "path",
+            "schema": {
+              "type": "string",
+              "allOf": [
+                {
+                  "pattern": "^ses"
+                }
+              ]
+            },
+            "required": true
+          }
+        ],
+        "security": [],
+        "responses": {
+          "204": {
+            "description": "<No Content>"
+          },
+          "400": {
+            "description": "InvalidRequestError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/InvalidRequestError"
+                }
+              }
+            }
+          },
+          "401": {
+            "description": "UnauthorizedError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UnauthorizedError"
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "SessionNotFoundError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/SessionNotFoundError"
+                }
+              }
+            }
+          }
+        },
+        "description": "Mark the latest recorded idle transition as viewed.",
+        "summary": "View session"
+      }
+    },
     "/api/session/{sessionID}/message": {
       "get": {
         "tags": ["session"],
@@ -12135,6 +12194,12 @@
               "updated": {
                 "type": "number"
               },
+              "idle": {
+                "type": "number"
+              },
+              "viewed": {
+                "type": "number"
+              },
               "archived": {
                 "type": "number"
               }
@@ -14276,6 +14341,71 @@
         "required": ["id", "created", "type", "durable", "data"],
         "additionalProperties": false
       },
+      "session.viewed": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string",
+            "allOf": [
+              {
+                "pattern": "^evt_"
+              }
+            ]
+          },
+          "created": {
+            "type": "number"
+          },
+          "metadata": {
+            "type": "object"
+          },
+          "type": {
+            "type": "string",
+            "enum": ["session.viewed"]
+          },
+          "durable": {
+            "type": "object",
+            "properties": {
+              "aggregateID": {
+                "type": "string"
+              },
+              "seq": {
+                "type": "integer",
+                "allOf": [
+                  {
+                    "minimum": 0
+                  }
+                ]
+              },
+              "version": {
+                "type": "number",
+                "enum": [1]
+              }
+            },
+            "required": ["aggregateID", "seq", "version"],
+            "additionalProperties": false
+          },
+          "location": {
+            "$ref": "#/components/schemas/Location.Ref"
+          },
+          "data": {
+            "type": "object",
+            "properties": {
+              "sessionID": {
+                "type": "string",
+                "allOf": [
+                  {
+                    "pattern": "^ses"
+                  }
+                ]
+              }
+            },
+            "required": ["sessionID"],
+            "additionalProperties": false
+          }
+        },
+        "required": ["id", "created", "type", "durable", "data"],
+        "additionalProperties": false
+      },
       "session.deleted": {
         "type": "object",
         "properties": {
@@ -17296,6 +17426,9 @@
           {
             "$ref": "#/components/schemas/session.renamed"
           },
+          {
+            "$ref": "#/components/schemas/session.viewed"
+          },
           {
             "$ref": "#/components/schemas/session.deleted"
           },
@@ -22664,6 +22797,9 @@
           {
             "$ref": "#/components/schemas/session.renamed"
           },
+          {
+            "$ref": "#/components/schemas/session.viewed"
+          },
           {
             "$ref": "#/components/schemas/session.usage.updated"
           },