diff --git a/packages/cli/src/commands/commands.ts b/packages/cli/src/commands/commands.ts
index 99bc62528d3..ef069516eb3 100644
--- a/packages/cli/src/commands/commands.ts
+++ b/packages/cli/src/commands/commands.ts
@@ -79,6 +79,7 @@ const Root = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME
       commands: [
         Spec.make("agents", { description: "List all agents" }),
         Spec.make("config", { description: "List configuration sources" }),
+        Spec.make("paths", { description: "Show global paths (data, config, cache, state)" }),
       ],
     }),
     Spec.make("console", {
diff --git a/packages/cli/src/commands/handlers/debug/paths.ts b/packages/cli/src/commands/handlers/debug/paths.ts
new file mode 100644
index 00000000000..732dae9ff2e
--- /dev/null
+++ b/packages/cli/src/commands/handlers/debug/paths.ts
@@ -0,0 +1,17 @@
+import { EOL } from "os"
+import { Effect } from "effect"
+import { Global } from "@opencode-ai/util/global"
+import { Commands } from "../../commands"
+import { Runtime } from "../../../framework/runtime"
+
+export default Runtime.handler(
+  Commands.commands.debug.commands.paths,
+  Effect.fn("cli.debug.paths")(function* () {
+    const global = yield* Global.Service
+    process.stdout.write(
+      Object.entries(global)
+        .map(([key, value]) => `${key.padEnd(10)} ${value}${EOL}`)
+        .join(""),
+    )
+  }),
+)
diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index 49eb0162d34..bbc4595b077 100755
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -27,6 +27,7 @@ const Handlers = Runtime.handlers(Commands, {
   debug: {
     agents: () => import("./commands/handlers/debug/agents"),
     config: () => import("./commands/handlers/debug/config"),
+    paths: () => import("./commands/handlers/debug/paths"),
   },
   console: {
     login: () => import("./commands/handlers/console/login"),
diff --git a/packages/cli/test/debug-paths.test.ts b/packages/cli/test/debug-paths.test.ts
new file mode 100644
index 00000000000..60e00ec4db7
--- /dev/null
+++ b/packages/cli/test/debug-paths.test.ts
@@ -0,0 +1,66 @@
+import { describe, expect, test } from "bun:test"
+import fs from "node:fs/promises"
+import os from "node:os"
+import path from "node:path"
+
+describe("debug paths command", () => {
+  test("is included in troubleshooting help", async () => {
+    const [debug, paths] = await Promise.all([cli(["debug", "--help"]), cli(["debug", "paths", "--help"])])
+
+    expect(debug.exitCode).toBe(0)
+    expect(debug.stdout).toContain("paths")
+    expect(debug.stdout).toContain("Show global paths (data, config, cache, state)")
+    expect(paths.exitCode).toBe(0)
+    expect(paths.stdout).toContain("opencode debug paths [flags]")
+  })
+
+  test("prints resolved global paths without starting a server", async () => {
+    const root = await fs.mkdtemp(path.join(os.tmpdir(), "opencode-debug-paths-"))
+
+    try {
+      const result = await cli(["debug", "paths"], {
+        XDG_DATA_HOME: path.join(root, "data"),
+        XDG_CONFIG_HOME: path.join(root, "config"),
+        XDG_CACHE_HOME: path.join(root, "cache"),
+        XDG_STATE_HOME: path.join(root, "state"),
+      })
+      const paths = Object.fromEntries(
+        result.stdout
+          .trim()
+          .split("\n")
+          .map((line) => line.trim().split(/\s+/, 2)),
+      )
+
+      expect({ exitCode: result.exitCode, stderr: result.stderr }).toEqual({ exitCode: 0, stderr: "" })
+      expect(paths).toMatchObject({
+        home: os.homedir(),
+        data: path.join(root, "data", "opencode"),
+        config: path.join(root, "config", "opencode"),
+        cache: path.join(root, "cache", "opencode"),
+        state: path.join(root, "state", "opencode"),
+        bin: path.join(root, "cache", "opencode", "bin"),
+        log: path.join(root, "data", "opencode", "log"),
+        repos: path.join(root, "data", "opencode", "repos"),
+      })
+      expect(paths.tmp).toBeTruthy()
+      expect(await Bun.file(path.join(root, "state", "opencode", "service-local.json")).exists()).toBe(false)
+    } finally {
+      await fs.rm(root, { recursive: true, force: true })
+    }
+  })
+})
+
+async function cli(args: string[], env?: Record<string, string>) {
+  const child = Bun.spawn([process.execPath, "run", path.join(import.meta.dir, "../src/index.ts"), ...args], {
+    cwd: path.join(import.meta.dir, ".."),
+    env: { ...process.env, ...env },
+    stdout: "pipe",
+    stderr: "pipe",
+  })
+  const [stdout, stderr, exitCode] = await Promise.all([
+    new Response(child.stdout).text(),
+    new Response(child.stderr).text(),
+    child.exited,
+  ])
+  return { stdout, stderr, exitCode }
+}