Two independent bugs evicted the cached gateway AIAgent on every turn,
preventing the prompt cache from ever warming:
1. Model normalization mismatch: the post-run fallback-eviction check
compared _agent.model (stripped in AIAgent.__init__) against the raw
_resolve_gateway_model() config string. For vendor-prefixed config on
native providers (e.g. 'deepseek/deepseek-v4-pro' vs 'deepseek-v4-pro')
this was always unequal, so the agent was evicted after every
successful run. Normalize _cfg_model the same way (skip aggregators).
2. Discord triggering message_id leaked into the cached system prompt via
build_session_context_prompt()'s Discord IDs block. message_id changes
every turn, so the agent-cache signature (computed from the ephemeral
prompt) changed every Discord turn -> rebuild every message. The id is
now injected per-turn into the user message (where per-turn content
belongs and does not touch the cache signature); the cached IDs block
carries a static pointer to it, preserving reply/react/pin via the
discord tools.
Adapted from #28846. Bug #1 fix is the contributor's; bug #2 reworked to
be non-destructive (keeps the triggering-id capability instead of deleting
it). Redundant auto-reset eviction (already on main via #9893/#48031) and
the wrong-premise reset_context_note plumbing from the original PR were
dropped.
Co-authored-by: Hermes Agent <hermes@nousresearch.com>
OpenRouter returns 429 in two shapes: an account-level throttle on the
user's key, and an upstream-provider throttle (DeepSeek/Anthropic/etc.
rate-limiting OpenRouter's aggregate traffic). The classifier treated
both identically and rotated/exhausted OPENROUTER_API_KEY on every 429 —
burning the key for ~24min and silently disabling auxiliary features
(compression, summarization, vision) on an upstream throttle where the
key was healthy.
Add a FailoverReason.upstream_rate_limit classified from OpenRouter's
unambiguous wrapper message "Provider returned error" (the same signal
the metadata-raw parser already trusts). Recovery skips credential
rotation and defers to the fallback chain to switch models instead.
Co-authored-by: Hermes Agent <127238744+teknium1@users.noreply.github.com>
The opt-in WHATSAPP_FORWARD_OWNER_MESSAGES path in bot mode marks
fromMe inbound messages as fromOwner: true and forwards them to the
Python adapter so plugins can detect "owner just typed in this chat"
and trigger handover / sliding TTL flows. The previous implementation
bypassed the allowlist for that path: the existing allowlist gate at
the bottom of the dispatch loop is guarded by !msg.key.fromMe, so any
chat the operator happened to reply to was forwarded — even ones not
on WHATSAPP_ALLOWED_USERS.
Concretely, on a deployment with a single allowlisted customer, an
owner reply in any other chat would still wake Hermes and let the
gateway-policy plugin's owner-implicit branch create a stray handover
row keyed by the non-allowlisted chatId.
Fix: extract the bot-mode fromMe gate into a small pure helper
(`owner_message_gate.js`) that returns one of
{drop_echo, drop_disabled, drop_allowlist, forward_owner, pass} so the
new allowlist branch can be unit-tested without spinning up Baileys.
The check runs against the customer chatId (not senderId, which is
the owner's own number/LID and won't be on the allowlist by
construction). matchesAllowedUser already short-circuits true on an
empty allowlist or "*", so deployments without an allowlist see no
behavior change.
Self-chat mode is untouched — its existing isSelfChat pin is the
correct guard there.
Tests: scripts/whatsapp-bridge/owner_message_gate.test.mjs covers
echo drop, disabled drop, the new allowlist drop, the forward path,
the open-allowlist short-circuit, and the precedence of echo/disabled
checks over the allowlist check (so logs stay honest).
In `WHATSAPP_MODE=bot` the bridge currently drops every fromMe inbound
message — they are all assumed to be echoes of our own /send calls.
That makes it impossible for plugins / agents to detect when a human
owner has typed directly into a customer chat from the same WhatsApp
Business account (e.g. via a linked phone or WhatsApp Web).
This adds an opt-in `WHATSAPP_FORWARD_OWNER_MESSAGES` env var. When
true, the bridge classifies fromMe inbound by looking up `key.id` in a
bounded LRU of recently-sent message IDs (the existing 50-entry echo
suppressor, bumped to 512 and extracted to a testable
`outbound_ids.js` helper). Hits in the LRU are still dropped (echoes);
misses are forwarded to the Python adapter with `fromOwner: true`.
The Python adapter lifts that flag onto
`MessageEvent.metadata["whatsapp_from_owner"]`. `metadata` is a new
free-form dict on the event so future per-platform signals don't each
need their own field. Default behaviour is unchanged: with the env
flag unset, bot mode still drops every fromMe message exactly as
before.
Use cases for downstream consumers:
- Implicit handover activation when the owner replies manually
- Sliding TTL on owner activity (keep an active session alive while
the owner is engaged)
- Audit trails of owner interventions
- Analytics on human-vs-bot reply ratios
Heuristic limitation (documented in code): the LRU is in-memory. After
a bridge restart, in-flight delivery receipts of pre-restart sends will
briefly look like owner-typed for a few seconds until the set is
repopulated. Persisting isn't worth the disk churn — downstream
consumers should treat the flag as best-effort.
Tests:
- tests/gateway/test_whatsapp_from_owner.py (new): adapter sets the
metadata flag iff the bridge payload has `fromOwner: true`; absent
otherwise.
- scripts/whatsapp-bridge/outbound_ids.test.mjs (new): LRU bounds,
eviction order, falsy-id handling.
Backwards compatibility: with the env flag unset, every code path is
identical to before. No existing deployment is affected.
Adds tests/agent/test_model_extra_type_guard.py exercising the real
ChatCompletionsTransport.normalize_response path with string/list/None/dict
model_extra; adds the AUTHOR_MAP entry for the contributor.
Vision requests routed through the OpenAI-compat API server forward the
raw multi-part content list ([{type:"text"}, {type:"image_url"}, ...])
straight through as user_message. The codex intermediate-ack detector
flattened it with (user_message or "").strip(), so a truthy list survived
and .strip() raised AttributeError — killing any Codex-routed vision turn
that took the require_workspace path.
Route through the existing _summarize_user_message_for_log helper (which
already backs the logging/banner previews on main), and widen the param
type hint from str to Any to match how the function is actually called.
The two logging-preview sites the original PR also touched were fixed
independently on main by the conversation-loop refactor.
Co-authored-by: Hermes Agent <agent@nousresearch.com>
delegate_task's per-task completion display emitted lines like
"✓ [1/3] Research done (17.92s)" via a bare print(). Under ACP (and any
headless JSON-RPC stdio host where AIAgent routes human output to stderr
via a custom _print_fn), these landed on stdout and corrupted the
protocol frame stream, surfacing as "Failed to parse JSON message: ✓
[3/3] …" in the ACP adapter.
Add _emit_parent_console() which prefers parent_agent._safe_print (the
same hook AIAgent uses for every other user-facing print) and falls back
to print() only when no router is wired up or it raises. CLI behavior is
unchanged.
The PR's other fix (preset toolset expansion) is already covered on main
by _expand_parent_toolsets(), so only the stdio-safe printing change is
salvaged here.
Batch delegation returned each subagent's full final_response verbatim
into the parent's context. A fan-out of N children could dump 60k+ tokens
at once, blowing the parent's context window and — on rate-limited
providers — triggering a compression/429 death spiral (429 misread as
context-too-large -> window step-down -> retry loop -> conversation dies).
Cap each summary against the parent's *remaining* context headroom split
across the batch (not a magic char count). When trimming, mirror the
web_extract convention: spill the full text to cache/delegation (mounted
into remote backends via credential_files._CACHE_DIRS) and return a
head+tail window (75/25, line-snapped) plus a footer with the exact
read_file offset to page the omitted middle. Both the subagent's opening
AND its closing (outcomes / files-changed / issues, which live at the end)
survive in-context, and nothing is lost — the parent can read_file the
full version on any backend.
delegation.max_summary_chars (default 24000) is a static ceiling layered
on top as belt-and-suspenders for models that ignore 'be concise'; 0
disables it. Child prompt tightened to lead with outcomes / bullets.
Co-authored-by: rc-int <rcint@klaith.com>
Three independent security-scanner hardenings, re-homed onto the current
shared threat-pattern architecture (tools/threat_patterns.py):
- approval.py: add bash/sh/zsh/ksh heredoc to DANGEROUS_PATTERNS. The
existing heredoc pattern only covered python/perl/ruby/node, so
`bash <<'EOF' ... EOF` ran arbitrary shell — including exfil pipelines
whose inner commands don't individually match a pattern — with no prompt.
- threat_patterns.py: apply unicodedata.normalize("NFKC", ...) before
pattern matching so full-width / compatibility homographs (e.g.
`ｃａｔ ~/.hermes/.env`) are folded to ASCII and no longer bypass the
keyword scanners. Invisible-char detection still runs on the raw content
first (NFKC can strip those codepoints).
- code_execution_tool.py: add CREDS/BEARER/APIKEY to _SECRET_SUBSTRINGS so
vars like HERMES_LLM_CREDS, API_BEARER, MY_APIKEY are scrubbed from the
sandbox env. PASS was intentionally dropped from the original proposal —
it false-positives on BYPASS_CACHE / COMPASS_DIR / PASSENGER_HOST while
PASSWORD/PASSWD already cover the credential cases.
The original PR also proposed a 'synonym' injection pattern block
(overlook/forget/set aside/bypass/discard + developer-mode); dropped here
because it false-positives on ordinary AGENTS.md/SOUL.md prose ("don't
forget to follow the rules", "run in developer mode"), exactly the
bossy-English class threat_patterns.py is documented to avoid.
Salvaged from #9028.
Co-authored-by: Hermes Agent <agent@nousresearch.com>
Follow-up to the salvaged #8008 fix:
- Sibling-site fix: _evaluate_slash_authorization gated DISCORD_ALLOWED_CHANNELS /
DISCORD_IGNORED_CHANNELS on numeric IDs only, so name/#name config that now works
for on_message still silently failed for slash-command interactions. Refactor the
channel-key helper to _discord_channel_keys_from_channel(channel, parent) and reuse
it at the interaction gate. Fail-closed on missing channel id is preserved.
- The contributor's hardcoded 8s flush deadline could be hard-cancelled mid-flush:
_teardown_adapter already wraps cancel_background_tasks() in the per-adapter
disconnect budget (HERMES_GATEWAY_ADAPTER_DISCONNECT_TIMEOUT, default 5s). The flush
deadline now derives from that budget with headroom so it always completes inside it.
- AUTHOR_MAP: map cypher@augmentl.com -> Nickperillo for CI.
- Tests: slash-auth name/#name allow + name ignore matching.
Relocate marco0158's eviction into the dedicated auto-reset cleanup block
(single source of truth for dropping session-scoped transient state) and
add an AST invariant pinning _evict_cached_agent into that block. Add
AUTHOR_MAP entry for marco0158.
_normalize_approval_mode() previously accepted any string, so an unknown
value like 'auto' fell through every downstream mode check (off/smart) and
silently behaved like manual with no signal. Validate against the known
modes (manual/smart/off), emit a warning for anything else, and default to
manual to match the config default and the rest of the function.
Bug 1 from the original PR (/approve & /deny bypassing the running-agent
guard) already landed on main independently, so only the mode-validation
fix is salvaged here.
Fixes#4261
Co-authored-by: Hermes Agent <agent@nousresearch.com>
`hermes profile alias <profile> --name <custom>` accepted arbitrary
strings and used them verbatim as a filename under ~/.local/bin. Because
normalize_profile_name only lowercases/strips (no regex gate), a value
like `../../.bashrc` escaped the wrapper directory and clobbered
arbitrary user-writable files. remove_wrapper_script had the same sink.
Add validate_alias_name (reusing the profile-id regex, which forbids
`/`, `.`, and `..`) and wire it into check_alias_collision,
create_wrapper_script, remove_wrapper_script, and the CLI alias action so
the rejection surfaces a clear "Invalid alias name" error instead of
silently writing or unlinking outside the wrapper dir.
Co-authored-by: Gutslabs <gutslabsxyz@gmail.com>
Co-authored-by: Xowiek <xowiekk@gmail.com>
* fix(terminal): require approval for host-bound Docker commands
The Docker terminal backend blanket-skips dangerous-command approval on
the assumption that the container is isolated from the host. That holds
only when nothing is bind-mounted in. Once a host path is exposed (via
TERMINAL_DOCKER_MOUNT_CWD_TO_WORKSPACE or a host-path entry in
TERMINAL_DOCKER_VOLUMES), a command like `rm -rf /workspace` reaches
real host files but is still auto-approved.
Detect host bind mounts and route those sessions through the normal
approval flow. Isolated Docker keeps the fast path. The same gating is
applied to the execute_code guard, which had the identical blanket skip.
Co-authored-by: Hermes Agent <agent@nousresearch.com>
* chore: add AUTHOR_MAP entry for PR #6436 salvage (Kolektori)
* test: accept has_host_access kwarg in _check_all_guards mocks
The host-bound Docker approval fix adds a has_host_access kwarg to the
_check_all_guards wrapper. Six pre-existing tests monkeypatch it with a
fixed (command, env_type) / (cmd, env) lambda signature, which now
raises TypeError when terminal_tool passes the new kwarg. Widen those
mock signatures to accept **kwargs.
---------
Co-authored-by: Kolektori <256073454+Kolektori@users.noreply.github.com>
Co-authored-by: Hermes Agent <agent@nousresearch.com>
On Windows, uv pip install -e . can register hermes.exe in package metadata
while the launcher never lands on disk. Detect missing [project.scripts]
shims and reinstall entry points under the existing quarantine path in
hermes update and install.ps1.
Removed/unauthorized Telegram users could inject prompt content before the
per-user auth gate fired. The adapter ran `_should_process_message`,
`_build_message_event`, and text/photo batching — and dispatched to the
runner — before `_is_user_authorized()` (gateway/authz_mixin.py) rejected
the sender. Unmentioned group chatter from a removed user was also
persisted into the session transcript via `_observe_unmentioned_group_message`,
leaking into the agent's observed context independent of dispatch.
Add `_is_user_authorized_from_message()` as an intake prefilter that runs
in `_handle_text_message`, `_handle_command`, `_handle_location_message`,
and `_handle_media_message` BEFORE batching, event construction, and the
unmentioned-group observe branch. It reuses the runner's
`_is_user_authorized()` with a correctly-shaped SessionSource (group vs
forum vs dm, real chat_id for TELEGRAM_GROUP_ALLOWED_* allowlists),
falls back to env allowlists, and only rejects when an allowlist actually
exists — unknown DMs with no allowlist still reach the pairing flow.
Channel posts authorize via `sender_chat` identity when `from_user` is
absent.
Co-authored-by: liuhao1024 <sunsky.lau@gmail.com>
Co-authored-by: Carlos Manuel Cejas <carlosmcejas@gmail.com>
On macOS app.quit() closes windows but window-all-closed deliberately keeps
the process alive (Dock convention). Every detached hand-off (update swap,
relaunch, Windows bootstrap recovery, uninstall cleanup) waits for the
desktop PID to exit before replacing/removing the bundle — so the process
never dying means the script spins its full PID-wait and the user sees a
blank app, or an uninstall that appears to do nothing.
Add a module-level isQuittingForHandoff flag, set before every hand-off
app.quit(); window-all-closed then quits on all platforms when it's set.
Covers all five hand-off sites including the Linux relaunch path.
The desktop install step ran npm ci / npm run pack with no wall-clock cap, and
the sibling browser-tools / TUI / agent-browser dependency installs had the same
gap. The Electron binary (~150MB) is fetched from GitHub during the pack; on a
throttled or region-blocked link that download can *stall* rather than fail —
npm never errors and never exits, so the installer sits on "Build desktop app"
(step 9/11) indefinitely with only harmless 'npm warn deprecated' lines visible.
The existing self-heal escalation (cache purge -> dist restore -> npmmirror
fallback) only fires when pack returns non-zero, so a stall bypassed it.
- run_with_timeout (generalized from run_browser_install_with_timeout): GNU
timeout --foreground -k 10 (Ctrl+C-aware, #35166) / gtimeout for external
commands, else a pure-shell process-group watchdog so stock macOS (neither
binary present) is protected. Shell functions (_desktop_pack) always take the
pure-shell path — the timeout binary can't exec a function. Integer-normalized
budget + a boundary recheck so a command finishing in the final poll second
isn't mislabeled 124. The internal wait is guarded so set -e can't abort
mid-function before the real exit code is computed.
- Wrap the desktop npm ci/install (sharing ONE budget via a computed deadline so
a stall can't cost 2x DESKTOP_BUILD_TIMEOUT) + all three _desktop_pack attempts
(DESKTOP_BUILD_TIMEOUT, default 900s), and the browser-tools / TUI / agent-
browser registry installs (NODE_DEPS_TIMEOUT, default 600s).
A stall now converts to a bounded non-zero exit that feeds the existing mirror
self-heal instead of hanging the whole install.
* test(ci): raise per-file timeout 140s to 300s to stop false timeouts
The per-file parallel runner caps each test-file subprocess at a flat
wall-clock budget. Combined with per-test subprocess isolation (a fresh
Python process per test), a large-collection file pays N x (interpreter
startup + import) of overhead before any test logic runs. That overhead
dilates under load on shared CI runners, so a file that finishes in
~100s on a quiet box can blow the old 140s cap purely from scheduling
jitter, surfacing as a false 'no tests ran' timeout (rc=124) with zero
actual test failures.
Raise the default to 300s (5 min). The Docker build matrix jobs already
take 7-10 min, so this headroom costs nothing on total CI wall time
while still bounding a genuinely hung file.
* docs: add infographic for CI per-file timeout bump
Add two tests for the self-lock guard in _recover_from_interrupted_install:
one asserting it clears the marker and skips install when hermes.exe is a
process ancestor (breaking the #52378/#45542 loop), one asserting it falls
through to a normal recovery install when the shim is NOT an ancestor.
The guard's manual-recovery hint runs only inside the Windows branch, so
quote it for cmd.exe (cd /d, double-quoted paths) — the cross-platform
fallback hint at the end of the function is left POSIX-correct.
Map Icather in scripts/release.py AUTHOR_MAP for the salvage.
When tools.environments.local can't be imported (partial install,
import-time error), _is_hermes_provider_credential() returned False —
fail-open. A skill could then register a Hermes provider credential
(ANTHROPIC_API_KEY, etc.) as env passthrough; _scrub_child_env lets
passthrough vars bypass the secret-substring net (rule 1), so the
operator's real key would land in the execute_code child. Reopens the
GHSA-rhgp-j443-p4rf bypass.
Fail closed instead: on import failure, treat the name as a protected
provider credential and refuse passthrough. Regression test exercises
the full register -> scrub path under a simulated import failure.
Co-authored-by: Hermes Agent <noreply@nousresearch.com>
Follow-up to the salvaged #37733 fix. The contributor centralized
redaction at _openai_error and the chat/responses failure paths, which
covers the OpenAI-compatible envelopes transitively. Two sibling classes
crossed the same authenticated HTTP boundary unredacted:
- 8x cron-management endpoints returning {"error": str(e)} on 500
- the session-chat SSE error event ({"message": str(exc)})
Route both through the same _redact_api_error_text(force=True) helper.
Add AUTHOR_MAP entry for coygeek and a TestRedactApiErrorText guard
covering mask/force/limit/passthrough behavior.
Follow-up on #54032 for #35166:
- Gate the PLAYWRIGHT_HOST_PLATFORM_OVERRIDE retry on the host being an apt
release newer than Playwright recognizes (Ubuntu >24.04 / Debian >13) via
playwright_host_unrecognized(), instead of retrying on ANY install failure.
A network/disk/permission failure on a supported host now surfaces unchanged
rather than getting a mismatched-glibc build forced onto it.
- detect_os() now captures DISTRO_VERSION from os-release.
- Fold in the interruptibility fix (was PR #35304, self-closed): wrap the
download in 'timeout --foreground -k 10' (probed, with plain-timeout
fallback) so a terminal Ctrl+C reaches the child and a wedged download is
force-killed after the deadline.
- Add behavioral tests that source the helpers and assert the retry fires only
on Ubuntu 26.04 / Debian 14, not on supported hosts, non-apt distros,
native-success, operator-pinned override, or unsupported arch.
On apt releases newer than the bundled Playwright recognizes (Ubuntu 26.04,
Debian 14, and future distros), 'npx playwright install --with-deps chromium'
hangs uninterruptibly at 'Installing Playwright Chromium with system
dependencies' because Playwright's resolver maps the host to a platform with
no download build (#35166).
Wrap every installer Playwright call in run_playwright_install(), which tries
the native install first and, only if it fails or times out, retries once with
PLAYWRIGHT_HOST_PLATFORM_OVERRIDE pinned to the newest known build
(ubuntu24.04-<arch>). This is the escape hatch Playwright's maintainers bless
for unrecognized platforms (microsoft/playwright#33434).
Try-native-first (not a hardcoded distro/version table) is deliberate:
- Self-correcting — when Playwright already supports the host (e.g. Ubuntu
26.04 on Playwright >=1.61) the first attempt succeeds and the override is
never applied, so we never force a mismatched-glibc build onto a release
Playwright handles correctly (microsoft/playwright#35114).
- Zero-maintenance — new distro releases work the moment Playwright adds them.
- Covers Debian 14+ and future releases, not just Ubuntu 26.04.
An operator-set PLAYWRIGHT_HOST_PLATFORM_OVERRIDE is always respected (applied
to the first attempt; retry skipped). Non-x64/arm64 arches have no fallback
build and skip the retry.
Refs #35166
When a provider's output-layer safety filter (MiniMax "output new_sensitive
(1027)", Azure content_filter, etc.) kills a streaming response after deltas
were already sent, interruptible_streaming_api_call swallows the raw error
into a finish_reason=length partial-stream stub. The conversation loop then
burned 3 continuation retries against the SAME primary — re-hitting the
content-deterministic filter every time — and gave up with "Response remained
truncated after 3 continuation attempts", never consulting fallback_providers.
Builds on @595650661's classifier change (cherry-picked) so error_classifier
recognizes the filter; then:
- chat_completion_helpers: run the swallowed error through error_classifier at
the stub-creation point and stamp _content_filter_terminated on the stub
(single source of truth — no parallel pattern list).
- conversation_loop: read the tag and activate the fallback chain BEFORE
burning any continuation retries; roll partial content back to the last
clean turn and re-issue against the new provider (restart_with_rebuilt_messages).
Plain network stalls are unaffected (only content_policy_blocked is tagged).
Credits #32479 (@sweetcornna) and #33845 (@Tranquil-Flow) which fixed the
same issue via the stub-tag and loop-escalation approaches respectively.
Live E2E confirmed: before, _try_activate_fallback called 0x; after, fallback
fires on the first stub and the fallback provider completes the turn.
The .integration.test.mjs greps bridge.js source text for the queue
wiring — a change-detector that breaks on any benign refactor of the
same code. The behavioral unit test (bridge.sendqueue.test.mjs) already
covers FIFO ordering, error isolation, timeout propagation, and
single-consumer concurrency, which is the contract that matters.
Concurrent sock.sendMessage() calls on a single Baileys socket can cause
the WhatsApp protocol-level routing to misdeliver messages — responses
intended for one chat appear in another.
Add a promise-based send queue that serialises all sendMessage() calls
across concurrent HTTP /send, /edit, and /send-media handlers so only
one send is in-flight at a time.
Includes unit tests for queue ordering, error isolation, timeout
propagation, and single-consumer concurrency semantics, plus an
integration check that the queue is wired into sendWithTimeout.
The parallel runner only forwarded pytest args after a literal '--', so a
bare 'scripts/run_tests.sh tests/foo.py -q' (or -v/-x/-k/--tb=long) errored
out with 'unrecognized arguments'. This contradicted the docstring's
promise that common pytest flags pass through, and forced a retry on every
run that used pytest muscle-memory.
Now any token starting with '-' that isn't one of the runner's own options
(-j/--jobs, --paths, --slice, --file-timeout, --generate-slices, --files,
--include-integration) is routed to each per-file pytest invocation
automatically. Value-taking flags given space-separated (-k expr, -m mark,
-p plugin, -o name=val, etc.) keep their value instead of having it stolen
by positional-path discovery. The explicit '--' separator still works and
stacks with bare flags.
- scripts/run_tests_parallel.py: argv splitter routes bare unknown flags to
pytest; value-flag lookahead; updated docstring.
- scripts/run_tests.sh: usage comment reflects bare-flag passthrough.
- tests/test_run_tests_parallel.py: 4 behavior-contract tests (bare -q runs,
-k keeps its value/filters, '--' still works, positional path stays a root).
The plain-Linux overlay re-enable (#53185) left nativeOverlayWidth() at 0
for plain Linux, so the native min/max/close buttons painted on top of the
app's right-edge titlebar tools. Reserve the fallback width everywhere the
WCO overlay is painted (Windows, WSLg, plain Linux); macOS still reserves 0
since it uses traffic lights.
_restore_primary_runtime restored the construction-time api_key snapshot and
never consulted the credential pool. After the pool rotated away from a
revoked/exhausted entry mid-session, every new turn restored the dead key,
re-failed instantly, burned the remaining entries, and fell through to
cross-provider fallback.
After restoring the snapshot, re-select the pool's current best entry and
swap the live credential in via _swap_credential (which already rebuilds the
OpenAI/Anthropic client, reapplies base-url headers, and carries the #33163
base_url / OAuth-detection fixes). Falls back to the snapshot key when the
pool is absent, empty, or the entry has no usable key.
Salvaged from #25206 onto current main: the original targeted the pre-refactor
monolithic method in run_agent.py; the logic now lives in
agent/agent_runtime_helpers.py and is collapsed onto _swap_credential instead
of re-inlining the client rebuild.
Fixes#25205
A flaky external probe in a tool's check_fn (e.g. check_terminal_requirements
running `docker version` with a 5s timeout, momentarily timing out under load)
would return False for a single get_tool_definitions() call. Because file
tools delegate their check_fn to the terminal check, that one flake silently
stripped read_file/write_file/patch/search_files AND terminal from whatever
agent was being constructed at that instant — most visibly a delegate_task
subagent, which then reported "Tool read_file does not exist". This explains
both the intermittent (~80% success) user-session failures and the
deterministic cron failures in #21658 / #5304.
The existing _check_fn TTL cache made this worse: it cached the transient
False for the full 30s window, poisoning every subagent spawned in that span.
Fix: remember the last time each check_fn returned True; when a fresh probe
fails within a short grace window of that success, treat it as a flake —
serve the last-good True and do NOT cache the failure (so the next call
re-probes). A failure with no recent success, or past the grace window, is
honored normally so a backend that genuinely went down stops advertising its
tools. Probe failures now log at WARNING regardless of quiet mode, making the
previously-silent tool loss diagnosable in subagent (quiet) sessions.
Co-authored-by: Stuart Horner <5261694+djstunami@users.noreply.github.com>
