fix(opencode): redact secrets from config responses

packages/opencode/src/config/config.ts

@@ -114,6 +114,77 @@ type Info = ConfigV1.Info & {
   plugin_origins?: ConfigPlugin.Origin[]
 }
 
+const redacted = "[redacted]"
+
+export function toPublicInfo(info: Info): Info {
+  return {
+    ...info,
+    provider: info.provider
+      ? Object.fromEntries(
+          Object.entries(info.provider).map(([id, provider]) => [
+            id,
+            {
+              ...provider,
+              options: provider.options
+                ? (redactProviderOptions(provider.options) as typeof provider.options)
+                : undefined,
+            },
+          ]),
+        )
+      : undefined,
+    mcp: info.mcp
+      ? Object.fromEntries(
+          Object.entries(info.mcp).map(([id, server]) => {
+            if (!("type" in server)) return [id, server]
+            if (server.type === "local") {
+              return [
+                id,
+                {
+                  ...server,
+                  environment: server.environment
+                    ? Object.fromEntries(Object.keys(server.environment).map((key) => [key, redacted]))
+                    : undefined,
+                },
+              ]
+            }
+            return [
+              id,
+              {
+                ...server,
+                headers: server.headers
+                  ? Object.fromEntries(Object.keys(server.headers).map((key) => [key, redacted]))
+                  : undefined,
+                oauth:
+                  server.oauth && server.oauth.clientSecret
+                    ? { ...server.oauth, clientSecret: redacted }
+                    : server.oauth,
+              },
+            ]
+          }),
+        )
+      : undefined,
+  }
+}
+
+function redactProviderOptions(value: unknown, key?: string): unknown {
+  const normalized = key?.replaceAll(/[-_]/g, "").toLowerCase()
+  if (
+    normalized &&
+    (normalized.endsWith("apikey") ||
+      normalized.endsWith("token") ||
+      normalized.includes("secret") ||
+      normalized.includes("password") ||
+      normalized.includes("credential") ||
+      normalized === "accesskeyid" ||
+      normalized === "authorization" ||
+      normalized.endsWith("cookie"))
+  )
+    return redacted
+  if (Array.isArray(value)) return value.map((item) => redactProviderOptions(item))
+  if (!isRecord(value)) return value
+  return Object.fromEntries(Object.entries(value).map(([key, item]) => [key, redactProviderOptions(item, key)]))
+}
+
 type State = {
   config: Info
   directories: string[]

packages/opencode/src/server/routes/instance/httpapi/handlers/config.ts

@@ -12,7 +12,7 @@ export const configHandlers = HttpApiBuilder.group(InstanceHttpApi, "config", (h
     const configSvc = yield* Config.Service
 
     const get = Effect.fn("ConfigHttpApi.get")(function* () {
-      return yield* configSvc.get()
+      return Config.toPublicInfo(yield* configSvc.get())
     })
 
     const update = Effect.fn("ConfigHttpApi.update")(function* (ctx) {

packages/opencode/src/server/routes/instance/httpapi/handlers/global.ts

@@ -80,7 +80,7 @@ export const globalHandlers = HttpApiBuilder.group(RootHttpApi, "global", (handl
     })
 
     const configGet = Effect.fn("GlobalHttpApi.configGet")(function* () {
-      return yield* config.getGlobal()
+      return Config.toPublicInfo(yield* config.getGlobal())
     })
 
     const configUpdate = Effect.fn("GlobalHttpApi.configUpdate")(function* (ctx) {

packages/opencode/test/server/httpapi-config.test.ts

@@ -64,6 +64,93 @@ describe("config HttpApi", () => {
     }),
   )
 
+  it.live(
+    "redacts resolved provider and MCP secrets",
+    Effect.gen(function* () {
+      const secrets = [
+        "CANARY_PROVIDER_API_KEY",
+        "CANARY_PROVIDER_CLIENT_SECRET",
+        "CANARY_PROVIDER_NESTED_TOKEN",
+        "CANARY_MCP_ENV",
+        "CANARY_MCP_HEADER",
+        "CANARY_MCP_CLIENT_SECRET",
+      ]
+      const tmp = yield* tmpdirEffect({
+        init: (dir) =>
+          Promise.all(secrets.map((secret, index) => Bun.write(path.join(dir, `secret-${index}`), secret))),
+        config: {
+          formatter: false,
+          lsp: false,
+          provider: {
+            canary: {
+              name: "Canary Provider",
+              options: {
+                apiKey: "{file:secret-0}",
+                clientSecret: "{file:secret-1}",
+                nested: { accessToken: "{file:secret-2}", temperature: 0.5 },
+                baseURL: "https://provider.example.com",
+              },
+            },
+          },
+          mcp: {
+            local: {
+              type: "local",
+              command: ["canary-command"],
+              environment: { TOKEN: "{file:secret-3}" },
+              enabled: false,
+            },
+            remote: {
+              type: "remote",
+              url: "https://mcp.example.com",
+              headers: { Authorization: "{file:secret-4}" },
+              oauth: { clientId: "canary-client", clientSecret: "{file:secret-5}", scope: "read" },
+              enabled: false,
+            },
+          },
+        },
+      })
+
+      const response = yield* Effect.promise(() =>
+        Promise.resolve(
+          app().request("/config", {
+            headers: {
+              "x-opencode-directory": tmp.path,
+            },
+          }),
+        ),
+      )
+      const text = yield* Effect.promise(() => response.text())
+      const body = JSON.parse(text)
+
+      expect(response.status).toBe(200)
+      secrets.forEach((secret) => expect(text).not.toContain(secret))
+      expect(body).toMatchObject({
+        provider: {
+          canary: {
+            name: "Canary Provider",
+            options: {
+              apiKey: "[redacted]",
+              clientSecret: "[redacted]",
+              nested: { accessToken: "[redacted]", temperature: 0.5 },
+              baseURL: "https://provider.example.com",
+            },
+          },
+        },
+        mcp: {
+          local: {
+            command: ["canary-command"],
+            environment: { TOKEN: "[redacted]" },
+          },
+          remote: {
+            url: "https://mcp.example.com",
+            headers: { Authorization: "[redacted]" },
+            oauth: { clientId: "canary-client", clientSecret: "[redacted]", scope: "read" },
+          },
+        },
+      })
+    }),
+  )
+
   it.live(
     "serves config with active provider model status",
     Effect.gen(function* () {