refactor: unify monitor abort lifecycle handling

changelog/fragments/README.md

@@ -0,0 +1,13 @@
+# Changelog Fragments
+
+Use this directory when a PR should not edit `CHANGELOG.md` directly.
+
+- One fragment file per PR.
+- File name recommendation: `pr-<number>.md`.
+- Include at least one line with both `#<pr>` and `thanks @<contributor>`.
+
+Example:
+
+```md
+- Fix LINE monitor lifecycle wait ownership (#27001) (thanks @alice)
+```

extensions/line/src/channel.startup.test.ts

@@ -129,50 +129,4 @@ describe("linePlugin gateway.startAccount", () => {
     abort.abort();
     await task;
   });
-
-  it("stays pending until abort signal fires (no premature exit)", async () => {
-    const { runtime, monitorLineProvider } = createRuntime();
-    setLineRuntime(runtime);
-
-    const abort = new AbortController();
-    let resolved = false;
-
-    const task = linePlugin.gateway!.startAccount!(
-      createStartAccountCtx({
-        token: "token",
-        secret: "secret",
-        runtime: createRuntimeEnv(),
-        abortSignal: abort.signal,
-      }),
-    ).then(() => {
-      resolved = true;
-    });
-
-    // Allow async internals to flush
-    await new Promise((r) => setTimeout(r, 50));
-
-    expect(monitorLineProvider).toHaveBeenCalled();
-    expect(resolved).toBe(false);
-
-    abort.abort();
-    await task;
-    expect(resolved).toBe(true);
-  });
-
-  it("resolves immediately when abortSignal is already aborted", async () => {
-    const { runtime } = createRuntime();
-    setLineRuntime(runtime);
-
-    const abort = new AbortController();
-    abort.abort();
-
-    await linePlugin.gateway!.startAccount!(
-      createStartAccountCtx({
-        token: "token",
-        secret: "secret",
-        runtime: createRuntimeEnv(),
-        abortSignal: abort.signal,
-      }),
-    );
-  });
 });

extensions/line/src/channel.ts

@@ -661,18 +661,6 @@ export const linePlugin: ChannelPlugin<ResolvedLineAccount> = {
         webhookPath: account.config.webhookPath,
       });
 
-      // Keep the provider alive until the abort signal fires.  Without this,
-      // the startAccount promise resolves immediately after webhook registration
-      // and the channel supervisor treats the provider as "exited", triggering an
-      // auto-restart loop (up to 10 attempts).
-      await new Promise<void>((resolve) => {
-        if (ctx.abortSignal.aborted) {
-          resolve();
-          return;
-        }
-        ctx.abortSignal.addEventListener("abort", () => resolve(), { once: true });
-      });
-
       return monitor;
     },
     logoutAccount: async ({ accountId, cfg }) => {

scripts/pr

@@ -664,6 +664,61 @@ validate_changelog_entry_for_pr() {
   echo "changelog validated: found PR #$pr (contributor handle unavailable, skipping thanks check)"
 }
 
+changed_changelog_fragment_files() {
+  git diff --name-only origin/main...HEAD -- changelog/fragments | rg '^changelog/fragments/.*\.md$' || true
+}
+
+validate_changelog_fragments_for_pr() {
+  local pr="$1"
+  local contrib="$2"
+  shift 2
+
+  if [ "$#" -lt 1 ]; then
+    echo "No changelog fragments provided for validation."
+    exit 1
+  fi
+
+  local pr_pattern
+  pr_pattern="(#$pr|openclaw#$pr)"
+
+  local added_lines
+  local file
+  local all_added_lines=""
+  for file in "$@"; do
+    added_lines=$(git diff --unified=0 origin/main...HEAD -- "$file" | awk '
+      /^\+\+\+/ { next }
+      /^\+/ { print substr($0, 2) }
+    ')
+
+    if [ -z "$added_lines" ]; then
+      echo "$file is in diff but no added lines were detected."
+      exit 1
+    fi
+
+    all_added_lines=$(printf '%s\n%s\n' "$all_added_lines" "$added_lines")
+  done
+
+  local with_pr
+  with_pr=$(printf '%s\n' "$all_added_lines" | rg -in "$pr_pattern" || true)
+  if [ -z "$with_pr" ]; then
+    echo "Changelog fragment update must reference PR #$pr (for example, (#$pr))."
+    exit 1
+  fi
+
+  if [ -n "$contrib" ] && [ "$contrib" != "null" ]; then
+    local with_pr_and_thanks
+    with_pr_and_thanks=$(printf '%s\n' "$all_added_lines" | rg -in "$pr_pattern" | rg -i "thanks @$contrib" || true)
+    if [ -z "$with_pr_and_thanks" ]; then
+      echo "Changelog fragment update must include both PR #$pr and thanks @$contrib on the entry line."
+      exit 1
+    fi
+    echo "changelog fragments validated: found PR #$pr + thanks @$contrib"
+    return 0
+  fi
+
+  echo "changelog fragments validated: found PR #$pr (contributor handle unavailable, skipping thanks check)"
+}
+
 prepare_gates() {
   local pr="$1"
   enter_worktree "$pr" false
@@ -684,13 +739,30 @@ prepare_gates() {
     docs_only=true
   fi
 
-  # Enforce workflow policy: every prepared PR must include a changelog update.
+  local has_changelog_update=false
-  if ! printf '%s\n' "$changed_files" | rg -q '^CHANGELOG\.md$'; then
+  if printf '%s\n' "$changed_files" | rg -q '^CHANGELOG\.md$'; then
-    echo "Missing CHANGELOG.md update in PR diff. This workflow requires a changelog entry."
+    has_changelog_update=true
+  fi
+  local fragment_files
+  fragment_files=$(changed_changelog_fragment_files)
+  local has_fragment_update=false
+  if [ -n "$fragment_files" ]; then
+    has_fragment_update=true
+  fi
+  # Enforce workflow policy: every prepared PR must include either CHANGELOG.md
+  # or one or more changelog fragments.
+  if [ "$has_changelog_update" = "false" ] && [ "$has_fragment_update" = "false" ]; then
+    echo "Missing changelog update. Add CHANGELOG.md changes or changelog/fragments/*.md entry."
     exit 1
   fi
   local contrib="${PR_AUTHOR:-}"
-  validate_changelog_entry_for_pr "$pr" "$contrib"
+  if [ "$has_changelog_update" = "true" ]; then
+    validate_changelog_entry_for_pr "$pr" "$contrib"
+  fi
+  if [ "$has_fragment_update" = "true" ]; then
+    mapfile -t fragment_file_list <<<"$fragment_files"
+    validate_changelog_fragments_for_pr "$pr" "$contrib" "${fragment_file_list[@]}"
+  fi
 
   run_quiet_logged "pnpm build" ".local/gates-build.log" pnpm build
   run_quiet_logged "pnpm check" ".local/gates-check.log" pnpm check

src/discord/monitor/gateway-error-guard.test.ts

@@ -0,0 +1,33 @@
+import { EventEmitter } from "node:events";
+import { describe, expect, it, vi } from "vitest";
+import { attachEarlyGatewayErrorGuard } from "./gateway-error-guard.js";
+
+describe("attachEarlyGatewayErrorGuard", () => {
+  it("captures gateway errors until released", () => {
+    const emitter = new EventEmitter();
+    const fallbackErrorListener = vi.fn();
+    emitter.on("error", fallbackErrorListener);
+    const client = {
+      getPlugin: vi.fn(() => ({ emitter })),
+    };
+
+    const guard = attachEarlyGatewayErrorGuard(client as never);
+    emitter.emit("error", new Error("Fatal Gateway error: 4014"));
+    expect(guard.pendingErrors).toHaveLength(1);
+
+    guard.release();
+    emitter.emit("error", new Error("Fatal Gateway error: 4000"));
+    expect(guard.pendingErrors).toHaveLength(1);
+    expect(fallbackErrorListener).toHaveBeenCalledTimes(2);
+  });
+
+  it("returns noop guard when gateway emitter is unavailable", () => {
+    const client = {
+      getPlugin: vi.fn(() => undefined),
+    };
+
+    const guard = attachEarlyGatewayErrorGuard(client as never);
+    expect(guard.pendingErrors).toEqual([]);
+    expect(() => guard.release()).not.toThrow();
+  });
+});

src/discord/monitor/gateway-error-guard.ts

@@ -0,0 +1,36 @@
+import type { Client } from "@buape/carbon";
+import { getDiscordGatewayEmitter } from "../monitor.gateway.js";
+
+export type EarlyGatewayErrorGuard = {
+  pendingErrors: unknown[];
+  release: () => void;
+};
+
+export function attachEarlyGatewayErrorGuard(client: Client): EarlyGatewayErrorGuard {
+  const pendingErrors: unknown[] = [];
+  const gateway = client.getPlugin("gateway");
+  const emitter = getDiscordGatewayEmitter(gateway);
+  if (!emitter) {
+    return {
+      pendingErrors,
+      release: () => {},
+    };
+  }
+
+  let released = false;
+  const onGatewayError = (err: unknown) => {
+    pendingErrors.push(err);
+  };
+  emitter.on("error", onGatewayError);
+
+  return {
+    pendingErrors,
+    release: () => {
+      if (released) {
+        return;
+      }
+      released = true;
+      emitter.removeListener("error", onGatewayError);
+    },
+  };
+}

src/discord/monitor/provider.ts

@@ -34,7 +34,6 @@ import { createDiscordRetryRunner } from "../../infra/retry-policy.js";
 import { createSubsystemLogger } from "../../logging/subsystem.js";
 import { createNonExitingRuntime, type RuntimeEnv } from "../../runtime.js";
 import { resolveDiscordAccount } from "../accounts.js";
-import { getDiscordGatewayEmitter } from "../monitor.gateway.js";
 import { fetchDiscordApplicationId } from "../probe.js";
 import { normalizeDiscordToken } from "../token.js";
 import { createDiscordVoiceCommand } from "../voice/command.js";
@@ -52,6 +51,7 @@ import {
 } from "./agent-components.js";
 import { resolveDiscordSlashCommandConfig } from "./commands.js";
 import { createExecApprovalButton, DiscordExecApprovalHandler } from "./exec-approvals.js";
+import { attachEarlyGatewayErrorGuard } from "./gateway-error-guard.js";
 import { createDiscordGatewayPlugin } from "./gateway-plugin.js";
 import {
   DiscordMessageListener,
@@ -230,33 +230,6 @@ function isDiscordDisallowedIntentsError(err: unknown): boolean {
   return message.includes(String(DISCORD_DISALLOWED_INTENTS_CODE));
 }
 
-type EarlyGatewayErrorGuard = {
-  pendingErrors: unknown[];
-  release: () => void;
-};
-
-function attachEarlyGatewayErrorGuard(client: Client): EarlyGatewayErrorGuard {
-  const pendingErrors: unknown[] = [];
-  const gateway = client.getPlugin<GatewayPlugin>("gateway");
-  const emitter = getDiscordGatewayEmitter(gateway);
-  if (!emitter) {
-    return {
-      pendingErrors,
-      release: () => {},
-    };
-  }
-  const onGatewayError = (err: unknown) => {
-    pendingErrors.push(err);
-  };
-  emitter.on("error", onGatewayError);
-  return {
-    pendingErrors,
-    release: () => {
-      emitter.removeListener("error", onGatewayError);
-    },
-  };
-}
-
 export async function monitorDiscordProvider(opts: MonitorDiscordOpts = {}) {
   const cfg = opts.config ?? loadConfig();
   const account = resolveDiscordAccount({

src/infra/abort-signal.test.ts

@@ -0,0 +1,29 @@
+import { describe, expect, it } from "vitest";
+import { waitForAbortSignal } from "./abort-signal.js";
+
+describe("waitForAbortSignal", () => {
+  it("resolves immediately when signal is missing", async () => {
+    await expect(waitForAbortSignal(undefined)).resolves.toBeUndefined();
+  });
+
+  it("resolves immediately when signal is already aborted", async () => {
+    const abort = new AbortController();
+    abort.abort();
+    await expect(waitForAbortSignal(abort.signal)).resolves.toBeUndefined();
+  });
+
+  it("waits until abort fires", async () => {
+    const abort = new AbortController();
+    let resolved = false;
+
+    const task = waitForAbortSignal(abort.signal).then(() => {
+      resolved = true;
+    });
+    await Promise.resolve();
+    expect(resolved).toBe(false);
+
+    abort.abort();
+    await task;
+    expect(resolved).toBe(true);
+  });
+});

src/infra/abort-signal.ts

@@ -0,0 +1,12 @@
+export async function waitForAbortSignal(signal?: AbortSignal): Promise<void> {
+  if (!signal || signal.aborted) {
+    return;
+  }
+  await new Promise<void>((resolve) => {
+    const onAbort = () => {
+      signal.removeEventListener("abort", onAbort);
+      resolve();
+    };
+    signal.addEventListener("abort", onAbort, { once: true });
+  });
+}

src/line/monitor.lifecycle.test.ts

@@ -0,0 +1,92 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { OpenClawConfig } from "../config/config.js";
+import type { RuntimeEnv } from "../runtime.js";
+
+const { createLineBotMock, registerPluginHttpRouteMock, unregisterHttpMock } = vi.hoisted(() => ({
+  createLineBotMock: vi.fn(() => ({
+    account: { accountId: "default" },
+    handleWebhook: vi.fn(),
+  })),
+  registerPluginHttpRouteMock: vi.fn(),
+  unregisterHttpMock: vi.fn(),
+}));
+
+vi.mock("./bot.js", () => ({
+  createLineBot: createLineBotMock,
+}));
+
+vi.mock("../plugins/http-path.js", () => ({
+  normalizePluginHttpPath: (_path: string | undefined, fallback: string) => fallback,
+}));
+
+vi.mock("../plugins/http-registry.js", () => ({
+  registerPluginHttpRoute: registerPluginHttpRouteMock,
+}));
+
+vi.mock("./webhook-node.js", () => ({
+  createLineNodeWebhookHandler: vi.fn(() => vi.fn()),
+}));
+
+describe("monitorLineProvider lifecycle", () => {
+  beforeEach(() => {
+    createLineBotMock.mockClear();
+    unregisterHttpMock.mockClear();
+    registerPluginHttpRouteMock.mockClear().mockReturnValue(unregisterHttpMock);
+  });
+
+  it("waits for abort before resolving", async () => {
+    const { monitorLineProvider } = await import("./monitor.js");
+    const abort = new AbortController();
+    let resolved = false;
+
+    const task = monitorLineProvider({
+      channelAccessToken: "token",
+      channelSecret: "secret",
+      config: {} as OpenClawConfig,
+      runtime: {} as RuntimeEnv,
+      abortSignal: abort.signal,
+    }).then((monitor) => {
+      resolved = true;
+      return monitor;
+    });
+
+    await vi.waitFor(() => expect(registerPluginHttpRouteMock).toHaveBeenCalledTimes(1));
+    expect(resolved).toBe(false);
+
+    abort.abort();
+    await task;
+    expect(unregisterHttpMock).toHaveBeenCalledTimes(1);
+  });
+
+  it("stops immediately when signal is already aborted", async () => {
+    const { monitorLineProvider } = await import("./monitor.js");
+    const abort = new AbortController();
+    abort.abort();
+
+    await monitorLineProvider({
+      channelAccessToken: "token",
+      channelSecret: "secret",
+      config: {} as OpenClawConfig,
+      runtime: {} as RuntimeEnv,
+      abortSignal: abort.signal,
+    });
+
+    expect(unregisterHttpMock).toHaveBeenCalledTimes(1);
+  });
+
+  it("returns immediately without abort signal and stop is idempotent", async () => {
+    const { monitorLineProvider } = await import("./monitor.js");
+
+    const monitor = await monitorLineProvider({
+      channelAccessToken: "token",
+      channelSecret: "secret",
+      config: {} as OpenClawConfig,
+      runtime: {} as RuntimeEnv,
+    });
+
+    expect(unregisterHttpMock).not.toHaveBeenCalled();
+    monitor.stop();
+    monitor.stop();
+    expect(unregisterHttpMock).toHaveBeenCalledTimes(1);
+  });
+});

src/line/monitor.ts

@@ -4,6 +4,7 @@ import { dispatchReplyWithBufferedBlockDispatcher } from "../auto-reply/reply/pr
 import { createReplyPrefixOptions } from "../channels/reply-prefix.js";
 import type { OpenClawConfig } from "../config/config.js";
 import { danger, logVerbose } from "../globals.js";
+import { waitForAbortSignal } from "../infra/abort-signal.js";
 import { normalizePluginHttpPath } from "../plugins/http-path.js";
 import { registerPluginHttpRoute } from "../plugins/http-registry.js";
 import type { RuntimeEnv } from "../runtime.js";
@@ -296,7 +297,12 @@ export async function monitorLineProvider(
   logVerbose(`line: registered webhook handler at ${normalizedPath}`);
 
   // Handle abort signal
+  let stopped = false;
   const stopHandler = () => {
+    if (stopped) {
+      return;
+    }
+    stopped = true;
     logVerbose(`line: stopping provider for account ${resolvedAccountId}`);
     unregisterHttp();
     recordChannelRuntimeState({
@@ -309,7 +315,12 @@ export async function monitorLineProvider(
     });
   };
 
-  abortSignal?.addEventListener("abort", stopHandler);
+  if (abortSignal?.aborted) {
+    stopHandler();
+  } else if (abortSignal) {
+    abortSignal.addEventListener("abort", stopHandler, { once: true });
+    await waitForAbortSignal(abortSignal);
+  }
 
   return {
     account: bot.account,

src/telegram/monitor.test.ts

@@ -1,4 +1,4 @@
-import { beforeEach, describe, expect, it, vi } from "vitest";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { monitorTelegramProvider } from "./monitor.js";
 
 type MockCtx = {
@@ -160,19 +160,30 @@ vi.mock("../auto-reply/reply.js", () => ({
 }));
 
 describe("monitorTelegramProvider (grammY)", () => {
+  let consoleErrorSpy: { mockRestore: () => void } | undefined;
+
   beforeEach(() => {
     loadConfig.mockReturnValue({
       agents: { defaults: { maxConcurrent: 2 } },
       channels: { telegram: {} },
     });
     initSpy.mockClear();
-    runSpy.mockClear();
+    runSpy.mockReset().mockImplementation(() =>
+      makeRunnerStub({
+        task: () => Promise.reject(new Error("runSpy called without explicit test stub")),
+      }),
+    );
     computeBackoff.mockClear();
     sleepWithAbort.mockClear();
     startTelegramWebhookSpy.mockClear();
     registerUnhandledRejectionHandlerMock.mockClear();
     resetUnhandledRejection();
     createTelegramBotErrors.length = 0;
+    consoleErrorSpy = vi.spyOn(console, "error").mockImplementation(() => {});
+  });
+
+  afterEach(() => {
+    consoleErrorSpy?.mockRestore();
   });
 
   it("processes a DM and sends reply", async () => {

src/telegram/monitor.ts

@@ -2,6 +2,7 @@ import { type RunOptions, run } from "@grammyjs/runner";
 import { resolveAgentMaxConcurrent } from "../config/agent-limits.js";
 import type { OpenClawConfig } from "../config/config.js";
 import { loadConfig } from "../config/config.js";
+import { waitForAbortSignal } from "../infra/abort-signal.js";
 import { computeBackoff, sleepWithAbort } from "../infra/backoff.js";
 import { formatErrorMessage } from "../infra/errors.js";
 import { formatDurationPrecise } from "../infra/format-time/format-duration.ts";
@@ -172,16 +173,7 @@ export async function monitorTelegramProvider(opts: MonitorTelegramOpts = {}) {
         abortSignal: opts.abortSignal,
         publicUrl: opts.webhookUrl,
       });
-      const abortSignal = opts.abortSignal;
+      await waitForAbortSignal(opts.abortSignal);
-      if (abortSignal && !abortSignal.aborted) {
-        await new Promise<void>((resolve) => {
-          const onAbort = () => {
-            abortSignal.removeEventListener("abort", onAbort);
-            resolve();
-          };
-          abortSignal.addEventListener("abort", onAbort, { once: true });
-        });
-      }
       return;
     }