Adds the missing write path for the per-task model_override column (which
was previously only settable via manual SQL) and pairs it with a
provider_override so cross-provider switches resolve correctly:
- kanban_db: provider_override column (+migration), set_model_override()
with model_override_set event, create_task(model_override=,
provider_override=), dispatcher spawns worker with -m <model>
[--provider <name>]
- dashboard: Model row in the task drawer — dropdown fed by a new
/model-options endpoint (build_models_payload substrate, provider-grouped,
free-text fallback), PATCH + bulk model override support
- CLI: kanban create --model/--provider, new kanban set-model subcommand,
show prints the provider
- agent tools: kanban_create accepts model/provider; show/list expose
provider_override
Rate-limit recovery flow: override is settable on running tasks and takes
effect on the next dispatch, without touching the worker profile's config.
Post-rebase consolidation over the merged C7/C16/C10 work:
- _ensure_dm_conversation now records workspace ownership via
_remember_channel_team and bounds _dm_conversation_cache (cap 5000)
- module-level _slack_dm_cache (C7 standalone path) bounded oldest-first
- _user_is_bot_cache (C10) bounded with _trim_oldest_dict_entries
- caption-mode contract tests updated for the C7+C8 merged media path
Widen the #19237 send_message fix to the live adapter: send, _upload_file,
send_multiple_images, send_image, send_video, send_document,
send_exec_approval, send_slash_confirm, and send_clarify now route bare
Slack user IDs (U.../W...) through a shared _ensure_dm_conversation helper
before calling chat.postMessage / files_upload_v2, which reject user IDs.
This closes the gap in #17261 where an attachment worked when replying in
a thread but failed when directed at a user DM, and extends the DM-open
fallback to clarify/approval Block Kit prompts so gated actions can reach
a user directly.
Resolution uses the workspace-scoped client (multi-workspace installs open
the DM with the right bot token), caches per (team, user), and records the
opened D... channel in the channel→team map. On failure the original
target passes through so the downstream API call surfaces the real Slack
error.
Fixes#17261
Refs #19236
Add early auth check in _handle_slack_message() that runs BEFORE any
API calls (thread context fetch, user name resolution, file downloads)
or file processing. Unauthorized users could previously trigger Slack
API calls and file downloads before the runner's _is_user_authorized
gate rejected them.
Same pattern as Telegram fix#54164: build a SessionSource and check
the runner's _is_user_authorized at the adapter level before event
construction consumes resources.
Fixes the gap where Slack has no adapter-level auth gate while Discord
and Telegram have adapter-level allowlists.
Slack could already deliver files in-channel via the gateway, but
send_message omitted MEDIA for Slack and told the model it was
unsupported — causing agents to inconsistently refuse PDF sends.
Wire Slack through files_upload_v2 in the standalone sender.
Port of the Slack half of #13855 (by @kshitijk4poor), reimplemented against
the plugin adapter (the original PR targets the deleted
gateway/platforms/slack.py and six other legacy adapters).
Channels listed in slack.require_mention_channels (config.yaml) or
SLACK_REQUIRE_MENTION_CHANNELS ALWAYS require an explicit @mention, even
when require_mention is false globally or the channel is in
free_response_channels — the opposite direction of free_response_channels.
Instead of duplicating the PR's inline reply-to-bot-thread/mentioned-thread/
session checks, the forced channel falls through to the SAME decision chain
as normal mention gating, so all five wake checks in
_should_wake_on_unmentioned_message keep applying (single decision path).
Credit: adapted from #13855 by @kshitijk4poor (Slack half only; the other
platform halves target deleted legacy adapters and are out of scope for
this cluster).
The ignore_other_user_mentions gate relied solely on is_mentioned, which
only recognises exact <@UID> markup, so a message mentioning the bot in
pipe form (<@UID|name>) alongside a leading other-user mention was
wrongly suppressed. The gate now also scans for the bot's own mention in
either markup before ignoring a message.
Claude-Session: https://claude.ai/code/session_01TKsNdptNdo9CqT2u7JMdkH
Once the bot is @mentioned in a Slack thread it auto-follows and replies
to every later message in that thread, including ones a human addresses to
another human (e.g. "@rasha check this out"). The bot butts in.
Add slack.ignore_other_user_mentions (env SLACK_IGNORE_OTHER_USER_MENTIONS,
default off). When on, a channel/thread message whose first token @mentions
someone other than the bot is treated as addressed to that person and the
bot stays silent unless it is also mentioned. This is Slack parity for the
Discord option of the same name (#33501), adapted to Slack's thread model:
the trigger is a leading mention ("addressed to"), so a message that merely
references another user mid-sentence still reaches the bot.
The gate sits ahead of the free-response / require_mention ladder so it also
overrides the mentioned-thread auto-follow. DMs are never filtered.
Follow-up rework on the #51627 cherry-pick:
- Guard the 5th wake check (parent-mentioned-bot, #24848) against a None
parent_text — _fetch_thread_parent_text is typed to return str but tests
(and defensive callers) can surface None; 'in None' raised TypeError.
- Drop the PR's fixture-level _fetch_thread_parent_text/_fetch_thread_context
AsyncMocks from TestThreadReplyHandling/TestAssistantThreadLifecycle: main's
#24848 tests exercise the real parent-text path via conversations_replies
side effects, and the blanket mocks broke them.
- _resolve_user_is_bot reworked to the workspace-scoped (team_id, user_id)
cache key introduced by the multi-workspace name cache on main.
Widening pass over the whole adapter following the cluster-C16 audit
(#51019, #51097, #23676, #23375): every in-memory structure that
accumulates per-message, per-user, or per-thread state is now bounded,
and every eviction is oldest-first — never arbitrary set-iteration
order, which is the #51019 failure mode (bot silently going quiet on
the most ACTIVE thread because set.pop-order eviction removed it).
Newly bounded:
- _approval_resolved / _clarify_resolved (caps 1000): unclicked
approval/clarify prompts leaked their double-click-guard entries
forever; oldest-insertion eviction via _trim_oldest_dict_entries.
- _reacting_message_ids (cap 5000): reaction lifecycle entries leaked
when an exception fired between add and finalize; oldest-ts eviction.
- _active_status_threads (cap 1000): statuses abandoned by error paths
accumulated; oldest-thread-ts eviction so the newest live status is
never cleared.
- _channel_team (cap 10000): grew with every DM channel the bot ever
saw (DM channel IDs are per-user). All four write sites now route
through _remember_channel_team; eviction is safe because entries are
re-learned from the next event and _get_client falls back to the
primary client.
- _slash_command_contexts (cap 1000): TTL cleanup only ran on lookup,
so contexts whose ephemeral replies never happened accumulated;
overflow purges expired entries first, then oldest-stash-first.
Converted from arbitrary set-order eviction to oldest-first:
- _titled_assistant_threads: keys are (team, channel, thread_ts) —
now evicts oldest thread first via _discard_oldest_by_thread_ts.
- _thread_rehydration_checked: keys are team:channel:thread_ts[:user] —
arbitrary eviction here would re-run an ACTIVE thread's restart
rehydration check and re-inject the missed-delta context; now evicts
oldest thread first.
- _reacting_message_ids uses #51097's _discard_oldest_slack_timestamps.
Deliberately NOT bounded (naturally tiny, per-workspace):
_team_clients, _team_bot_user_ids, _team_bot_names (one entry per
installed workspace), _assistant_threads / _agent_view_contexts /
_bot_message_ts / _mentioned_threads / _user_name_cache /
_thread_context_cache (already bounded), _dedup (MessageDeduplicator
has max_size + TTL internally).
New helpers: _trim_oldest_dict_entries (dicts preserve insertion
order, so oldest-first is exact) and _discard_oldest_by_thread_ts
(chronological sort on the embedded Slack ts for keyed sets).
Tests: caps hold under churn, eviction removes OLDEST not arbitrary
entries, newest/active entries survive eviction pressure (regression
shape for #51019), plus end-to-end paths through _resolve_user_name
and _handle_slash_command.
Part of the C16 cache-bounds consolidation with #51097 (markoub),
#23676 and #23375 (EloquentBrush). Fixes#51019.
_fetch_thread_context() caches per-thread Slack history under a
60-second TTL, but expired entries are never removed. On the current
adapter this is worse than when first reported: each entry now also
retains the raw conversations.replies payloads (messages) for
watermark re-formatting, so a busy multi-channel workspace accumulates
full message lists forever. _bot_message_ts, _mentioned_threads, and
_assistant_threads all enforce a MAX constant with active eviction in
the same __init__; _thread_context_cache had the TTL declared but no
matching eviction path.
Fix: add _THREAD_CACHE_MAX = 2500 and purge expired entries
(fetched_at older than _THREAD_CACHE_TTL) whenever a new write pushes
the cache past the limit. TTL-based eviction is used instead of LRU
because fresh entries are still needed; evicting them would
immediately re-trigger a rate-limited conversations.replies call.
Adds two unit tests: one verifying stale entries are purged on
overflow, one verifying fresh entries survive.
Reapplied from #23375 onto the current adapter (moved to
plugins/platforms/slack/adapter.py; cache entries now carry raw
message payloads and parent_user_id).
_resolve_user_name() caches every resolved (team_id, user_id) → display
name but never evicts entries. On a long-running bot in a large
workspace every unique user the bot encounters adds a permanent entry.
Sibling structures _bot_message_ts (BOT_TS_MAX=5000) and
_assistant_threads (ASSISTANT_THREADS_MAX=5000) already have caps;
_user_name_cache had none.
Fix: add _USER_NAME_CACHE_MAX = 5000 and evict the oldest half on
overflow after each write, matching the existing sibling pattern.
Consolidates the two cache-write branches (success + API error) into a
single write so eviction runs once per resolution.
Reapplied from #23676 onto the current adapter (cache moved to
plugins/platforms/slack/adapter.py and is now keyed by
(team_id, user_id) tuples for multi-workspace safety).
Cron jobs targeting a Slack user (deliver=slack:U…) failed with
channel_not_found: chat.postMessage and files_upload_v2 require a
conversation ID, and a DM must be opened first via conversations.open
to obtain a D… ID. The tool-level resolution in send_message() does not
cover cron's direct _send_to_platform → standalone_sender_fn path.
Add _resolve_slack_user_dm to the Slack plugin: resolves U…/W… targets
via conversations.open (proxy-aware, cached per token+user so repeated
cron fires don't re-open the DM), wired into _standalone_send ahead of
both the text and media delivery branches so every standalone entry
point benefits.
Adapted from #17444 by @Esther-Zhu023 — the original patched the legacy
_send_slack helper in tools/send_message_tool.py, which has since moved
into the plugin as _standalone_send (#41112).
Closes#17444
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Cron/async deliveries (reply_to=None) should always go to the home/target
channel, but _resolve_thread_ts() returns metadata.thread_id/thread_ts even
when reply_to is None, routing messages to the thread where the cron job
was created instead of the configured home channel.
Add early return None when reply_to is None, so async deliveries never
inherit stale thread context from metadata.
Closes#59097
Per review (Victor): response_url failure does not mean ephemeral delivery
is impossible — chat.postEphemeral is an independent API path that keeps
the reply private. Public-channel fallback removed entirely; when both
ephemeral paths fail the reply is dropped with a logged error rather than
leaked to the channel. No config knob needed.
Two silent-loss modes in the ephemeral slash reply path:
1. Delivery failure was swallowed: _send_slash_ephemeral returned
success=True on any POST failure, so the user's actual command reply
vanished behind the stale 'Running /cmd…' ack. It now returns
success=False and send() falls back to normal channel delivery.
2. Long replies were truncated to the first ~39k chunk with no notice.
Replies are now chunked across response_url POSTs (first replaces
the ack, follow-ups append, all ephemeral), capped at Slack's 5-POST
response_url budget with an explicit truncation notice when exceeded.
Also updates the #55357 bounded-error-read test for the #26788 precise
context matching (ContextVar must be set) and channel fallback.
Fixes#19688
Commands typed in Slack could be mangled by every enrichment layer the
adapter applies to normal messages:
- Block Kit / unfurl / attachment-notice / text-file injection could
prepend or append content around a command, moving the command token
away from character zero or polluting its arguments. Commands are now
restored from canonical authored input after all enrichment
(final is_command_text guard before MessageEvent construction).
- @bot /cmd (typed slash behind a mention) was never classified as a
command; the mention-strip branch now re-probes for both slash and
bang forms.
- The Slack Agent-view context label ([Slack app context: ...]) was
prepended to command events too; now command-exempt.
- Native slash payload arguments were strip()ed, destroying meaningful
spacing inside/after arguments; only the command delimiter is
nonsemantic now.
- Slash payload thread identity (thread_ts/message_ts, top-level or
nested in message/container) is preserved onto SessionSource so
session-scoped commands hit the same thread session.
- /queue and /steer queued fallbacks now propagate channel_context so a
command that triggered first-entry thread backfill doesn't lose the
history when re-queued.
Adapted from PR #66310 to the post-#69320 channel_context design (thread
history already rides MessageEvent.channel_context, never text).
Slack's send() caught all exceptions and returned a bare
SendResult(success=False) — never setting retryable=True or extracting
the server's Retry-After header. When Slack returned a 429 rate-limit
error, the base _send_with_retry() layer saw retryable=False and did
not retry, silently dropping remaining message chunks.
Reuse the existing _is_retryable_upload_error() helper (which already
detects 429, 500+, and connection-type errors) to set retryable=True,
and extract the Retry-After header from the SlackApiError response
when present so the base retry layer honors Slack's backoff schedule
instead of its own default.
Sibling of the Telegram FloodWait fix (PR #46762 / commit 404b06ac4)
which added the SendResult.retry_after plumbing to the base layer.
Adds five regression tests covering 429 with/without Retry-After,
500 server errors, 403 non-retryable errors, and connection errors.
_pop_slash_context fell back to a channel-only scan when the
_slash_user_id ContextVar was unset (i.e. send() invoked from a
non-slash code path such as a cron delivery or a normal channel reply).
That scan could steal another user's pending slash reply context: the
normal message got swallowed into an ephemeral response_url POST that
replaces the invoker's ack, and the slash invoker's actual reply then
posted publicly. Remove the fallback — when the ContextVar is unset,
match nothing.
Surgical reapply of PR #26788 (originally against gateway/platforms/slack.py).
_has_active_session_for_thread() hardcoded chat_type='group', causing
session key mismatch for DM and MPIM threads. DM sessions key as
agent:main:slack:dm:{chat_id}:{thread_ts} but the lookup built
agent:main:slack:group:{chat_id}:{user_id}:{thread_ts}.
Impact: _has_active_session_for_thread always returned False for DM
threads, causing thread context to be prepended on every message. The
prepended context broke slash command detection (get_command() checks
text.startswith('/')), so /cmd and !cmd never worked in DM threads.
Fix: accept event-derived chat_type parameter instead of hardcoding
'group'. Both call sites pass chat_type='dm' if is_dm else 'group',
where is_dm is already computed from channel_type in {'im', 'mpim'}.
This correctly handles:
- IM channels (D-prefix): chat_type='dm'
- MPIM channels (G-prefix): chat_type='dm' (was missed by D-prefix heuristic)
- Channel messages (C-prefix): chat_type='group' (unchanged)
Added regression tests covering DM thread lookup, MPIM thread lookup,
and negative cases verifying the old hardcoded 'group' behavior fails.
Slack rich_text blocks mirror the original message text. When bang
commands are rewritten from !model to /model, appending block text makes
the command arguments include a duplicate payload, so the model switcher
sees spaces in the model name and rejects valid commands like:
!model qwen3.7-plus --provider opencode-go
Skip block extraction for command messages while preserving it for
normal messages. Also preserve Slack thread_ts (top-level or nested in
message/container payload shapes) on native slash-command payloads so
session-scoped commands like /model apply to the intended thread instead
of a channel+user key the next threaded message never matches.
Surgical reapply of PR #43533 (originally against gateway/platforms/slack.py,
now plugins/platforms/slack/adapter.py). Thread-shape widening credit also
to #66310.
Removes Homebrew and PyPI wheel/sdist as Hermes distribution paths while
preserving the supported source, Docker, and Nix workflows.
Changes:
- Removes the Homebrew formula, PyPI publish workflow, sdist manifest
(MANIFEST.in), and wheel/sdist release-attachment logic from scripts/release.py.
- Keeps setuptools metadata and entry points required by editable installs
and Docker/Nix builds, but adds a setup.py guard that rejects wheel/sdist
builds outside a sealed Nix derivation (HERMES_NIX_BUILD=1).
- Removes pip/Homebrew install detection, PyPI update checks, the pip
self-update path, the deprecation-banner state, the postinstall subcommand,
wheel data-directory fallbacks in agent/i18n.py and hermes_constants.py,
and the ACP Registry manifest/version-lockstep release logic.
- Adds /nix/store/ path detection so `nix run` / `nix profile install`
installs (which don't set HERMES_MANAGED) are correctly identified as
"nix" rather than falling through to "git"/"unknown".
- Retired install-method values ("pip", "homebrew") in existing
.install_method stamps (both code-scoped and home-scoped) are ignored by
the allowlist reader and fall through to "unknown" instead of resurrecting
a retired enum value.
- Updates Nix packaging to ship bare runtime data (locales, optional-mcps)
through store symlinks and wrapper env vars instead of wheel data-files.
- Removes the ACP Registry manifest/icon and their version-lockstep tests.
- Deletes or rewrites packaging, pip-update, Homebrew, and ACP Registry
tests; adds parametrized coverage for the packaging build guard covering
BOTH sdist and wheel paths (the guards live in separate cmdclass entries
— a passing sdist test proves nothing about the wheel path).
- Updates installation/platform documentation and related user-facing copy.
- Adjusts the supply-chain scan so deleted install-hook files do not trigger
a finding, while additions or modifications still require the existing
ci-reviewed label gate.
Supported installation paths (unchanged):
- git installer (install.sh)
- Docker
- Nix/NixOS
- editable development installs (uv sync, uv pip install -e ., pip install -e .)
Slack delivers user mentions as opaque IDs (<@U123>). The agent had no
way to tell one participant from another — or from itself — so it could
misread a mention of a human as a self-mention and answer messages
addressed to that person (the "bot thinks it's @someone-else" bug).
Two cooperating fixes:
- _humanize_user_mentions rewrites remaining <@UID> tokens (the bot's
own mention is stripped earlier) to @DisplayName in the trigger text
and reply_to_text — the Slack equivalent of Discord's clean_content.
Handles the labelled <@UID|handle> form; unresolvable IDs fall back
to the raw ID.
- _build_identity_prompt injects an ephemeral per-turn system-prompt
line via the channel_prompt seam (applied at API-call time, never
persisted — prompt caching preserved) naming the bot's own workspace
handle (per-team in multi-workspace installs) so the agent has a
positive "that's me" anchor.
Salvaged from #55340 by @benbarclay, rebased over the workspace-scoped
user-name cache (team_id-aware resolution) on main.
Two mention-tracking gaps around thread parents (#24848):
1. When a thread PARENT @-mentioned the bot (e.g. '<@bot> check this
and ask me before running'), a later bare reply like 'run' fell
through every wake check if the mention event predated this process
(restart) — _mentioned_threads is in-memory only. Add a 5th wake
check that fetches the parent text (with the bot mention preserved
via strip_bot_mention=False) and wakes when the parent addressed the
bot, registering the thread so later replies skip the fetch.
2. A TOP-LEVEL @mention starts a thread (session keying falls back to
the message ts), but only the raw event thread_ts was registered in
_mentioned_threads — so replies to a top-level mention did not
auto-trigger. Register the session-scoped thread_ts instead.
_fetch_thread_parent_text reuses the shared thread-context cache (raw
payloads) so the parent check costs at most one conversations.replies
call per thread; _register_mentioned_thread centralizes the bounded-set
eviction.
Salvaged from #24848 by @kaiyisg, rebased onto the extracted
_should_wake_on_unmentioned_message helper.
The un-mentioned wake decision relied on three checks: thread root in
_bot_message_ts (populated only by the adapter's own send() path),
_mentioned_threads (populated on @mention), and an existing session.
Two gaps (#63530):
- Gap A: bot messages posted OUTSIDE gateway send() — skills/scripts
calling chat.postMessage directly, cron/API posts — never enter
_bot_message_ts, so human replies in those threads were silently
dropped.
- Gap B: _bot_message_ts is process memory; after a gateway restart the
bot stopped waking on replies to threads it started before the
restart.
Fix: add a 4th, API-derived check — _bot_authored_thread_root — which
resolves the thread root's author via conversations.replies (cached in
_thread_context_cache via the new parent_user_id field, TTL-bounded).
Root authorship comes from Slack itself, so it covers outside-send
posts and survives restarts, unlike in-memory ts tracking. The wake
decision is extracted into _should_wake_on_unmentioned_message for
direct unit testing; the legacy checks remain first (cheap, additive).
Fixes#63530.
Salvaged from #64067 by @knoal (author metadata normalized to their
GitHub identity), rebased over the thread-context formatter split and
extended with per-team bot-id resolution for multi-workspace installs.
Persistent sessions survive gateway restarts, but thread replies posted
while the gateway was DOWN never reached the session — and the adapter
had no way to notice, so the conversation silently resumed with a hole
in it.
On the first ordinary reply per thread after a restart (tracked by a
fresh-process _thread_rehydration_checked set), fetch the thread delta
past the persisted per-session watermark and inject any missed messages
as part of the new turn via channel_context. Exactly-once per thread
per process; when the watermark is empty (pre-feature sessions) the
check is a no-op. Steady-state replies keep advancing the watermark so
rehydration never re-injects messages the session already carries as
ordinary turns. Prior history is never rewritten (prompt caching safe).
Builds on the persisted watermark introduced for #23918.
Salvaged from #33215 by @vexclawx31, reworked from a repeated
full-thread injection guard into a watermark-delta injection so
rehydration adds only what the session actually missed.
Once a thread has an active session, a later reply that explicitly
@mentions the bot did not re-fetch Slack thread context, so the agent
missed messages added to the thread after the initial hydrate (e.g.
other bots/integrations replying in multi-agent workflows). The
explicit mention is a fresh intent signal and now triggers a refresh.
Mechanics:
- SessionEntry gains a small persisted metadata dict, with
SessionStore.get/set_session_metadata accessors (survives gateway
restarts via the routing index).
- The adapter stores a per-thread consumption watermark
(slack_thread_watermark:<channel>:<thread>) recording the last
thread ts the session consumed.
- On explicit mention in an active thread, _fetch_thread_context runs
with force_refresh=True (bypassing the TTL cache) and after_ts=<the
watermark>, so only NOT-yet-seen messages are injected — as part of
the new turn via channel_context. Prior conversation history is
never rewritten, preserving prompt caching.
- _fetch_thread_context caches raw conversations.replies payloads so
watermark-scoped re-formatting needs no extra API call; formatting
is split into _format_thread_context.
- Thread session keys are built once in _build_thread_session_key
(shared by the wake gate and the watermark accessors), still via
build_session_key().
Fixes#23918. Supersedes #62299 (keyword-triggered refresh limited to
'investigate' prompts — the mention signal is the general fix).
Salvaged from #23927 by @heathley, rebased onto the plugin adapter
layout and rerouted through channel_context instead of text-prepend.
Prepending cold-start thread backfill directly onto the message text
moved a recognized command (e.g. a bang-normalized "!queue ...") away
from character zero, so downstream command routing misclassified it as
conversational text and the command silently didn't run.
Route the backfill through MessageEvent.channel_context instead —
gateway.run already prepends channel_context after command dispatch
("[New message]" framing), so commands keep their COMMAND type while
the recovered history stays available to the agent.
Supersedes #68020, which dropped the fetched context entirely for
commands instead of preserving it out-of-band.
Salvaged from #66069 by @LevSky22.
_fetch_thread_context unconditionally filtered out the bot's own prior
replies, so cold-start sessions (bot posts a thread root, user replies
later, no active session) lost every assistant turn and the agent could
not reconstruct the prior conversation.
The circular-context concern the filter guarded against does not apply
here: the call site is gated by _has_active_session_for_thread, so this
method only runs when there is no session history to duplicate.
Self-bot replies are now kept and labelled with an explicit [assistant]
prefix (skipping user-name resolution — the label already communicates
authorship). Third-party bot posts and the bot-authored thread parent
keep their existing treatment.
Fixes#38861.
Salvaged from #38936 by @temalo, rebased from the pre-plugin
gateway/platforms/slack.py layout onto plugins/platforms/slack/adapter.py
(preserving the [unverified] trust-tag handling added on main since).
A session key that exists in the store but would be rolled to a fresh
session by the reset policy (daily/idle/suspended) is not an active
session. Treating it as active suppressed the first-turn Slack
thread-history reseed after reset (#55239).
_has_active_session_for_thread() now consults SessionStore._should_reset
so a stale entry gates like a missing one, letting _fetch_thread_context
reseed the fresh session with recent thread history.
Fixes#55239.
Salvaged from #55240 by @ooiuuii.
Slack buffers un-acked Socket Mode events and replays them when the
websocket reconnects; the replay can arrive several minutes later —
past the 300s default dedup TTL — producing a duplicate bot reply.
Default the Slack dedup window to 1 hour (memory stays bounded by the
deduplicator's max_size LRU pruning) and allow overriding via
SLACK_DEDUP_TTL_SECONDS.
Salvaged from PR #40064 by @MrAbsaroka (reapplied onto the
plugin-migrated adapter path). Fixes#4777.
The Socket Mode watchdog only reconnects when is_connected() returns False
or the receiver task dies. When the underlying aiohttp ClientSession is
closed (e.g. after a network blip), slack_sdk gets stuck retrying
"Session is closed" while is_connected() can still report healthy and the
receiver task stays alive — so the watchdog never fires and the process is
alive but deaf to Slack indefinitely.
Add a ping/pong staleness probe: Slack sends a ping roughly every
ping_interval seconds even on an idle socket, so a stale/missing
last_ping_pong_time (past a first-ping grace window) is a reliable signal
the transport is wedged. The watchdog now also reconnects on staleness,
which rebuilds the handler with a fresh session. Guards non-numeric
attributes so a mocked/partial client never triggers a spurious reconnect.
7 new tests; full test_slack.py (216) green.
SocketModeClient.connect() is a "while True" retry loop that never checks
the client's closed flag, so anything still inside it when the shared
aiohttp session is closed keeps retrying against a session that can never
work again. That is the "Failed to connect (error: Session is closed);
Retrying..." spam in #46990, at a steady ping_interval cadence that only
a process restart clears.
_stop_socket_mode_handler closed the handler first and cancelled
afterwards, which loses the race. close_async() closes that shared
session, and three things can be inside connect() when it does: our own
start_async task, monitor_current_session() (on staleness) and
receive_messages() (on a CLOSE frame), the latter two reaching it
independently through connect_to_new_endpoint(). connect() also rebinds
current_session_monitor and message_receiver to fresh tasks when it
succeeds, so the set of live tasks changes across the awaits inside
close(). Cancelling from a snapshot taken partway through races a moving
target rather than closing the window.
So cancel all four before close_async() instead. With nothing left alive
to enter connect(), no rebinding can happen during teardown and the
window cannot open at all. The client's task attributes are read with
getattr so a rename inside the SDK degrades to a no-op instead of raising
during shutdown, and the wait is asyncio.wait with a timeout rather than
an unbounded await, so a task wedged in a network call cannot hold up
shutdown.
The underlying SDK defect is tracked at slackapi/python-slack-sdk#1913.
This replaces the earlier version of this change, which added a closed
session check when building a handler and another in the watchdog. Both
are unnecessary once teardown stops leaking tasks: each
AsyncSocketModeHandler builds its own SocketModeClient with a fresh
ClientSession, so a new handler cannot inherit a closed session, and the
current handler's session is only closed by the teardown path itself.
Dropping the watchdog check also keeps this off the ping/pong staleness
trigger proposed in #52923, which addresses a wedged live connection
rather than a leaked one.
Fixes#46990
A platform with a missing dependency or missing credentials can never
succeed on retry, but connect() returned bare False, so the gateway
treated the failure as transient and queued it for background
reconnection — looping forever at the backoff cap. Set
_set_fatal_error(..., retryable=False) for missing-dependency and
missing-credential failures in the Slack, Telegram, and Discord
adapters so the reconnect watcher drops them from the retry queue.
Salvaged from PR #31057 by @dskwe (reapplied onto the plugin-migrated
adapter paths). Fixes#31049.
