hermes-agent/gateway
Brian D. Evans 133e0271e2 fix(slack): scope top-level channel messages by channel-only when reply_in_thread=false (#15421)
Top-level Slack channel messages previously fell back to the message's
own ``ts`` as a synthetic ``thread_ts``:

    thread_ts = event.get("thread_ts") or ts  # ts fallback for channels

That value flows into ``build_source(thread_id=thread_ts)`` at
line 1247.  The gateway session store keys sessions by
``(platform, channel_id, thread_id)``, so every top-level channel
message ended up on a unique session.  Operators who set
``reply_in_thread: false`` in ``config.yaml`` expected all top-level
channel messages to share one session (the whole point of that flag)
— instead each one spawned a fresh conversation with no context
carry-over.

### Fix

Three explicit cases in the channel branch:

| event.thread_ts | reply_in_thread | thread_ts for session keying |
|---|---|---|
| non-null (real thread reply) | either | event.thread_ts |
| null (top-level) | true (default) | ts (legacy: own-thread sessions) |
| null (top-level) | false | **None** (shared channel session) |

The outbound-reply gate at line 1264 (``reply_to_message_id =
thread_ts if thread_ts != ts else None``) still works correctly in
all three cases without further changes: ``None != ts`` is True, so
shared-channel top-level messages don't get their reply threaded
either — matching the operator's ``reply_in_thread=false`` intent
end-to-end.

Genuine thread replies still scope per-thread under both modes so
multi-person threaded conversations can't collide with unrelated
channel chatter.

### Tests (7 new in ``tests/gateway/test_slack_channel_session_scope.py``)

All drive the real ``SlackAdapter._handle_slack_message`` code path
(not a re-implementation) via the standard pytest fixture pattern
used by ``tests/gateway/test_slack.py``.  Messages @mention the bot
so the mention gate doesn't drop them — the tests are specifically
about what happens once the handler decides to emit a ``MessageEvent``.

* ``TestChannelSessionScopeDefault`` (2 cases):
  - Explicit ``reply_in_thread: true`` keeps ``thread_id = ts``
    (legacy behaviour — regression guard)
  - Unset config behaves like ``reply_in_thread: true`` (pins the
    default)
* ``TestChannelSessionScopeShared`` (3 cases):
  - ``reply_in_thread: false`` + top-level → ``thread_id is None``
    (the #15421 bug 1 fix)
  - ``reply_to_message_id is None`` in the same case (no threaded
    outbound reply)
  - Genuine thread reply still scopes per-thread when shared mode is
    on — only TOP-LEVEL messages collapse to the channel session
* ``TestThreadReplyAlwaysScopesByThread`` (2 parametrised cases):
  - Thread replies get ``thread_id = event.thread_ts`` regardless of
    ``reply_in_thread`` — critical invariant for multi-thread
    channels; a regression here would leak per-thread context across
    threads

**Regression guard verified**: reverted the else-branch to the legacy
``thread_ts = event.get("thread_ts") or ts`` one-liner;
``test_top_level_maps_to_none_when_reply_in_thread_false`` correctly
failed (asserts ``thread_id is None`` but got ``"1700000000.000003"``).
Restored → 182 slack tests pass (175 existing + 7 new).

Scope: this fixes #15421 bug 1 only.  Bug 2 (sessions.json not
persisting across compression) lives elsewhere in the session
manager and is left for a separate diff.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-06-07 21:19:59 -07:00
..
assets fix: improve telegram topic mode setup 2026-05-04 12:07:17 -07:00
builtin_hooks remove: BOOT.md built-in hook (#17093) 2026-04-28 09:50:27 -07:00
platforms fix(slack): scope top-level channel messages by channel-only when reply_in_thread=false (#15421) 2026-06-07 21:19:59 -07:00
__init__.py docs(gateway): mention Weixin in gateway help and docstrings 2026-05-12 17:08:51 -07:00
channel_directory.py refactor(ntfy): convert built-in adapter to platform plugin 2026-05-23 16:13:01 -07:00
config.py fix(gateway): bridge shared-key loop to nested platform config blocks 2026-06-04 05:31:47 -07:00
delivery.py fix(gateway): drop outbound silence-narration messages pre-send 2026-05-29 19:06:05 -07:00
display_config.py fix(gateway): keep Telegram heartbeat + interim commentary on; edit heartbeat in place (#33187) 2026-05-27 05:21:53 -07:00
hooks.py feat(hooks): expose thread_id and chat_type in agent:start/end context (#41672) 2026-06-07 19:16:36 -07:00
memory_monitor.py Port from cline/cline#10343: periodic gateway memory logging (#27102) 2026-05-16 12:55:23 -07:00
mirror.py refactor(gateway): drop _append_to_jsonl from mirror 2026-05-20 13:00:57 -07:00
pairing.py fix(gateway): preserve WhatsApp pairing approvals across JID/LID alias flips 2026-05-23 01:46:34 -07:00
platform_registry.py refactor(plugins): add apply_yaml_config_fn registry hook 2026-05-13 22:20:30 -07:00
restart.py fix(gateway): address restart review feedback 2026-04-10 21:18:34 -07:00
run.py feat(hooks): expose thread_id and chat_type in agent:start/end context (#41672) 2026-06-07 19:16:36 -07:00
runtime_footer.py chore: prune unused imports and duplicate import redefinitions 2026-05-28 22:26:25 -07:00
session.py feat(gateway): bring /undo [N] to messaging platforms (parity with CLI/TUI) (#36699) 2026-06-01 02:04:14 -07:00
session_context.py fix(desktop): stabilize project folder sessions (#37586) 2026-06-02 20:23:09 +00:00
shutdown_forensics.py chore: ruff auto-fixes — collapsible-else-if, if-stmt-min-max, dict.fromkeys (#23926) 2026-05-11 11:03:29 -07:00
slash_access.py feat(gateway): per-platform admin/user split for slash commands (salvage of #4443) (#23373) 2026-05-10 12:33:54 -07:00
status.py fix(gateway): tolerate non-UTF-8 status/pid files in gateway status reads 2026-06-04 22:05:23 -07:00
sticker_cache.py fix: guard yaml.safe_load, flock unlock, TOCTOU races, and atomic writes 2026-05-19 00:12:41 -07:00
stream_consumer.py fix(telegram): finalize sealed overflow chunk so split streamed replies render formatting 2026-06-04 17:11:12 -07:00
stream_dispatch.py feat(gateway): structured stream-event protocol + Telegram draft formatting parity (#37250) 2026-06-02 00:33:50 -07:00
stream_events.py feat(gateway): structured stream-event protocol + Telegram draft formatting parity (#37250) 2026-06-02 00:33:50 -07:00
whatsapp_identity.py fix(whatsapp_identity): pin identifier regex to ASCII, clarify it's defense-in-depth 2026-04-26 20:48:31 -07:00