Review findings on the salvaged #60332 breaker, fixed as follow-ups:
- restore_primary_runtime() now resets the streak (third provider-swap
path; without it a recovered primary was short-circuited before a
single attempt and could never be re-proven healthy except via /model).
- interruptible_api_call (non-streaming) now carries the same breaker
(guard at entry, bump on stale_call_kill, reset on success). Quiet-mode
/ subagent / headless sessions — the profile most like #58962's
unattended 494-failure session — take this path and had the identical
infinite stale-retry class.
- Partial-stream stub return now resets the streak (chunks were received,
provider demonstrably responsive).
- Consolidated the triple-duplicated counter arithmetic into shared
helpers (_stale_streak/_bump_stale_streak/_reset_stale_streak/
_check_stale_giveup) with one canonical comment block; error message
now says 'consecutive stale attempts' (the counter counts kills, not
turns — a single turn can produce several).
4 new tests (restore resets / no-op restore keeps latch / non-streaming
short-circuit / non-streaming success reset).
Follow-up for the salvaged #60332 circuit breaker. The breaker latches:
once the streak trips, interruptible_streaming_api_call raises before any
stream is attempted, so the on-success reset can never run again. The
error text tells the user to switch models and retry — but neither
switch_model() nor try_activate_fallback() cleared the streak, so a
freshly selected healthy provider kept short-circuiting forever (only
/new recovered), and the automatic fallback chain was wedged the same way.
Reset the streak at both swap sites (after a successful rebuild only;
rollback/exhaustion paths keep the latch). 4 tests.
A session wedged against an unresponsive OpenAI-compatible provider can hit the stale-stream detector on every turn and loop forever, burning the full 180s x retries each turn with no response. Issue #58962 reports 494 consecutive failures over 3+ days on a single session.
The streaming retry path already caps retries WITHIN a turn (HERMES_STREAM_RETRIES, default 2) but has no cross-turn cap. Once a session's conversation state makes every turn stale, it retries indefinitely across turns and never notifies the user.
Add a per-session consecutive-stale-stream counter on the agent:
- incremented on every stale-stream kill in the outer poll loop;
- reset to 0 only when a stream actually completes;
- when it reaches HERMES_STREAM_STALE_GIVEUP (default 5), the next turn aborts immediately with a clear, actionable RuntimeError instead of spending 180s x retries again.
This is distinct from the existing stale-stream work (local-provider hard ceiling #44938, backoff/parse-error #60031): those bound a single hung stream, while this bounds repeated cross-turn staleness and surfaces a user-visible error.
Adds tests/run_agent/test_stream_stale_circuit_breaker.py covering the short-circuit, the success-reset, and the increment.
Drop the Responses-API native compaction path and its opt-in umbrella
flag from the salvaged feature. On the Codex OAuth chat route Hermes
owns the message list and the summary compressor works (and stays
provider-portable — encrypted compaction items would lock the session
history to chatgpt.com and break /model switches and provider
fallback). On the app-server runtime (codex CLI/agent) the codex agent
owns the real thread context, so thread/compact/start is the only
mechanism that can actually shrink it (#36801) — that path is now the
default behavior for codex_app_server sessions, controlled by
compression.codex_app_server_auto (native|hermes|off), no umbrella
flag.
Removed: responses.compact() call path, codex_compaction_items replay/
persistence plumbing, codex_native_compaction + codex_responses_threshold
config keys, desktop settings fields, and their tests. Kept: everything
app-server (compact_thread(), compaction notifications, bookkeeping,
docs, tests) plus cache-busting keys for the surviving knobs.
The provider-mismatch guard now checks pool_provider and
current_provider != pool_provider. MagicMock.provider returns
a truthy child mock by default, which would trigger the guard
and skip the pool recovery tests. Set pool.provider='' explicitly.
When context.engine selects a plugin engine (e.g. LCM), the host
compression threshold — including the Codex gpt-5.5 50% -> 85%
autoraise — only configures the built-in ContextCompressor and never
reaches the plugin. The autoraise notice still fired, telling the user
auto-compaction was raised when nothing actually changed, and the
startup context-limit line printed the host percent next to the
engine's own threshold_tokens, contradicting itself.
- Clear _compression_threshold_autoraised when a plugin engine is
selected, suppressing both the CLI startup notice and the gateway
turn-1 replay via _compression_warning.
- Print the active engine's own threshold_percent in the startup
context-limit line so percent and token count agree.
- Built-in behavior is preserved, including the fallback path where a
configured engine fails to load and the built-in compressor takes
over.
Fixes#44439
gpt-5.3-codex-spark has a native 128K context window but the default
50% compaction trigger fires at ~64K, wasting half the usable window
before the session has accumulated enough turns to summarize
meaningfully. This raises the trigger to 70% (~90K) on the Codex OAuth
route only, leaving ~38K headroom for the summary and continued
conversation before the 128K hard limit.
The override is not gated by allow_codex_gpt55_autoraise because 128K
is the model's native window (unlike gpt-5.5's artificial 272K Codex
cap). Non-Codex routes are unaffected.
Also adds a boundary regression test verifying the short-session
scenario from the issue always yields a non-empty compressible window
(no silent context wipe).
ruff check --fix --select F541 . on current main. Pure prefix removals;
adjacent-string concatenations keep the f only on interpolating fragments.
No string content or live placeholder altered.
TestMcpParallelToolBatch seeded provenance under old-style
mcp_<server>_<tool> names, which no longer pass the
is_mcp_tool_parallel_safe() prefix gate after the naming change.
coerce_tool_args only repaired the outermost value, so JSON-encoded
*elements* of array properties (and nested object sub-fields) were left
as strings. Three core tools have array<object> schemas — todo.todos,
delegate_task.tasks, memory.operations — so a model emitting
{"todos": ["{...}"]} would pass raw JSON strings into the tool and fail
downstream on item["id"]/item["goal"] access.
Adds a schema-guided recursive pass (_normalize_json_strings_for_schema)
that parses JSON-string array items and nested object fields only when
the matching schema position expects an array/object, preserving
legitimate JSON-looking string fields (type: string).
Adapted from cline/cline#11803 to hermes-agent's existing coercion layer.
Follow-up to the salvaged #58696 (devatnull) + #41343 (annguyenNous)
commits: instead of fully suppressing commentary/analysis-phase stream
deltas, fire on_reasoning_delta so the CLI/gateway display them like
thinking text. Matches Codex CLI semantics where commentary is never
the turn's final answer, while keeping the narration visible in the
reasoning display. Adds devatnull to AUTHOR_MAP.
The custom ``httpx.HTTPTransport(socket_options=[SO_KEEPALIVE, ...])``
in ``_build_keepalive_http_client()`` was introduced to fix CLOSE-WAIT
socket accumulation on long-lived connections (#10324).
That approach broke streaming for providers behind reverse proxies
(OpenResty, Cloudflare, etc.) because the custom socket options
conflict with the proxy's chunked-transfer handling (#54049, #12952).
It also stripped TCP_NODELAY, stalling TLS handshakes and SSE encoding.
Narrow per-provider bypasses were added for Copilot (#50298), Codex
(#36623, #12953), but the root cause remained.
The fix moves connection lifecycle management from the socket layer to
the HTTP pool layer:
- ``httpx.Limits(keepalive_expiry=20.0)`` tells httpx to close idle
pooled connections at 20 s, before a reverse proxy's typical 30-60 s
timeout drops them and causes CLOSE-WAIT accumulation.
- The default httpx transport preserves OS TCP defaults (including
TCP_NODELAY), so TLS handshakes and SSE chunked encoding work
correctly.
- ``trust_env=False`` prevents httpx from double-dipping on env vars
(we handle proxy detection ourselves via ``_get_proxy_for_base_url``
which respects NO_PROXY).
- The Copilot host bypass (line 3632) is no longer needed since all
providers now use the same standard httpx.Client.
Closes#54049. Supersedes #12010, #36623, #12953, #50298.
Extend the pre_tool_call plugin hook return contract with a new directive:
{"action": "approve", "message": "why this needs human confirmation"}
Previously a pre_tool_call hook could only veto a tool call (action: block)
or allow it silently. It could not escalate to the existing human-approval
flow. This unlocks user-defined runtime approval rules on ANY tool (HTTP
writes, file writes to sensitive paths, email sends), enforced at runtime —
resolving #51221 as a pure plugin, with no core approval.py rule schema.
Mechanism:
- get_pre_tool_call_directive() returns (action, message) for block|approve;
get_pre_tool_call_block_message() kept as a block-only back-compat shim.
- resolve_pre_tool_block() is the single dispatch-site chokepoint: fetches
the directive and, for approve, invokes the human gate; fail-closed to a
block on denial, timeout, or gate exception. ALL FOUR tool-dispatch sites
now call it: tool_executor (concurrent + sequential), agent_runtime_helpers,
and model_tools.handle_function_call.
- request_tool_approval() escalates via the SAME machinery as Tier-2
dangerous commands: session/permanent allowlist, prompt_dangerous_approval
(CLI) / submit_pending (gateway), [o]nce/[s]ession/[a]lways/[d]eny,
timeout fail-closed, approvals.cron_mode for cron contexts.
Architecture: extracted the shared decision core into _run_approval_gate(),
called by BOTH check_dangerous_command() and request_tool_approval() so the
fail-closed / cron / gateway / yolo / persist policy lives in ONE place and
cannot drift. Fixed a latent divergence — the plugin path now honors --yolo.
Approval grain: [a]lways is keyed on tool_name + a hash of the reason (an
explicit plugin rule_key overrides), so distinct reasons on the same tool
persist independently instead of one 'always' blanketing the whole tool.
Non-interactive: cron honors approvals.cron_mode (parity with commands); any
other non-interactive non-gateway context fails CLOSED for the plugin path
(the command path keeps its historical fail-open default, unchanged).
No new config schema, no new env vars, no new hook events.
Strict providers (DeepSeek) reject a payload where the same tool_call_id
appears more than once with HTTP 400 'Duplicate value for tool_call_id'.
The issue was filed as an 'orphaned tool message' compression bug, but the
pasted error is a DUPLICATE tool_call_id — orphans are already handled on
main; duplicates were not. Reproduced live on main: both shapes leaked
through repair_message_sequence and sanitize_api_messages.
Two chokepoints, two shapes:
- repair_message_sequence: consume the id from known_tool_ids on first
match so a SECOND tool result reusing it falls into the drop branch
(duplicate tool-result shape). This is @Robinlovelace's kernel from
#55436 (applied manually — that PR was ~800 commits stale and bundled
an unrelated duplicate-DB-write change for #860, which is dropped here).
- sanitize_api_messages (final pre-API pass): add a dedup pass covering
BOTH (a) duplicate tool_calls sharing an id WITHIN one assistant message
(the message[6] shape) and (b) later tool result messages reusing an
already-seen id. #55436 covered neither of these at this chokepoint.
Tests: duplicate-tool-result dedup at both functions, duplicate-assistant-
tool_call-id collapse, and a negative control proving distinct ids are
never dropped (no over-dedup).
Credit: @Robinlovelace (#55436) for the repair_message_sequence dedup kernel.
Closes#58327.
repair_message_sequence Pass 1 registered only tc.get("id") when building
the set of known assistant tool_call ids, then matched tool results against
it by tool_call_id. In the Codex Responses format an assistant tool_call
carries both id (fc_...) and a distinct call_id (call_...); a tool result's
tool_call_id may be keyed on either depending on which builder produced it.
Registering only id made a valid tool result whose tool_call_id matched
call_id look orphaned, so the pass dropped it and left the assistant
tool_call unanswered -- producing HTTP 400 on strict providers (DeepSeek,
Kimi): 'Messages with role tool must be a response to a preceding message
with tool_calls'. Long-running sessions that persisted such a sequence were
permanently broken, re-sending the orphan every turn.
Register both id and call_id for each assistant tool_call so a result
matching either key is recognized, consistent with
AIAgent._get_tool_call_id_static and the compressor's _sanitize_tool_pairs.
Apply the same call_id||id precedence to the corrupted-args sanitizer's
existing-result scan / stub insertion, which had the identical mismatch.
Adds 3 regression tests covering the codex id!=call_id case (match on
call_id, match on only call_id, match on id when both present).
The salvaged max-output/pressure fix set conversation_history=None after
the new pre-API compaction. That is only correct for legacy session-
rotation. Under the default in-place compaction (compression.in_place:
True), archive_and_compact inserts the compacted rows into the session DB
directly without stamping them with the intrinsic persisted-marker, so a
subsequent flush with conversation_history=None re-appends them — doubling
the active context and retriggering compression (the early-persist
duplicate-row trap).
Use conversation_history_after_compression(agent, messages), matching the
two existing compaction sites (post-response should_compress and the
turn-prologue preflight), which returns None for rotation and
list(messages) for in-place so the compacted dicts are skipped by identity.
Adds a regression test with a real SessionDB + real archive_and_compact
that asserts the compacted summary row is persisted exactly once (fails
with 2 copies on the None variant).
Follow-up to the per-site strips from the review gate. The two copy-site
strips are correct but positional — a copy site added after the assembly
loops would re-leak _db_persisted into the child-session flush. Add a single
terminal sweep (_strip_persistence_markers) run once on the fully-assembled
compressed list so the invariant 'no compacted message leaves compress()
carrying a persistence marker' is structural, not dependent on copy-site order.
- agent/context_compressor.py: _strip_persistence_markers() called before
compress() returns; helper docstring notes the sweep is the authoritative guard
- tests/agent/test_context_compressor.py: structural regression — neuter the
per-site helper to a leaking copy, assert the terminal sweep still strips
- tests/run_agent/test_compression_persistence.py: pin the fixture assumption
behind the exact-equality row-count assertion
Shallow messages[i].copy() during context compression propagated the
_db_persisted marker from cached gateway incremental flushes into the
post-rotation compressed list. _flush_messages_to_session_db then skipped
every row when writing to the new child session, so gateway restarts
lost the compacted transcript (severe amnesia).
Strip the marker in _fresh_compaction_message_copy() and add regression
tests for rotation flush + compressor assembly.
Fixes#57491
Replace the loopback/PKCE-callback server and manual-paste fallback with
the RFC 8628 device-code flow as the only xAI Grok OAuth login path. The
flow works in headless/SSH/container sessions with no 127.0.0.1 listener,
shrinking the local attack surface.
- Poll the token endpoint with server-provided interval, honoring
slow_down and expires_in; store tokens with auth_mode
oauth_device_code.
- Adaptive proactive refresh skew for short-lived device-code JWTs;
rotated tokens sync back to auth.json, the global root store, and the
credential pool (no refresh-token replay).
- Clear source suppression on successful re-login (CLI + dashboard) and
drop the duplicate dashboard pool entry so exactly one seeded
device_code entry exists.
- Use the shared device_code source name for consistency with the
nous/codex device-code providers.
- Desktop: remove the loopback OAuth flow states and dead type variants;
pkce providers' sign-in URL selection is unchanged.
- Docs (EN + zh-Hans) rewritten for device-code login; drop the deleted
--manual-paste flag from documented commands.
Named providers / custom_providers entries in config.yaml now accept an
extra_headers dict scoped to that endpoint — for reverse proxies, API
gateways, and custom auth schemes (e.g. Cloudflare Access service tokens).
- hermes_cli/config.py: normalize extra_headers on provider entries
(_normalize_custom_provider_entry + providers-dict translation), add
get_custom_provider_extra_headers /
apply_custom_provider_extra_headers_to_client_kwargs helpers keyed on
base_url (case/trailing-slash insensitive, no substring bypass —
mirrors the TLS helpers)
- hermes_cli/runtime_provider.py: surface extra_headers in the resolved
runtime for named custom providers (providers dict, legacy
custom_providers list, and the credential-pool path)
- run_agent.py / agent/agent_init.py: merge per-provider extra_headers
onto the OpenAI client default_headers at construction and on every
_apply_client_headers_for_base_url re-application (credential swaps,
rebuilds), most-specific level wins; OpenAI-wire only (native
Anthropic/Bedrock scoped out)
- agent/auxiliary_client.py: accept model.extra_headers as an alias of
model.default_headers for the global variant
- cli-config.yaml.example: documented commented example
- Header values are treated as secrets and never logged
Salvaged from PR #3526 by @jneeee, reimplemented against current main.
Co-authored-by: Teknium <127238744+teknium1@users.noreply.github.com>
Three CLI reliability fixes:
1. Interrupt reliability: chat() only re-queued the user's interrupt
message when the turn result carried interrupted=True. When the agent
thread raced past its last interrupt check (or finished) before the
interrupt landed, the message was silently dropped — and the stale
_interrupt_requested flag left on the agent instantly aborted the
NEXT turn. Un-acknowledged interrupt messages are now re-queued as
the next turn and the stale flag is cleared (only when the agent
thread actually exited). The clarify-race path also parks the message
in _pending_input instead of dropping it.
2. Slow exit (5+ min): stdlib ThreadPoolExecutor workers are non-daemon
and joined unconditionally by concurrent.futures' atexit hook — even
after shutdown(wait=False). One wedged tool worker (abandoned after
interrupt/timeout) held the process open forever. Promoted
async_delegation's daemon executor to a shared tools/daemon_pool
module and adopted it in tool_executor (concurrent tool batches),
memory_manager (background sync), delegate_tool (child timeout wrapper
+ batch fan-out), and skills_hub (source fan-out). Added a 30s exit
watchdog (HERMES_EXIT_WATCHDOG_S) armed at _run_cleanup start as a
backstop for wedged cleanup steps.
3. Exit jank: after prompt_toolkit tears down the input/status bars the
terminal sat silent for the whole cleanup window, looking hung. Print
'Shutting down… (finalizing session)' immediately at exit start.
E2E: live PTY interrupt of a foreground 'sleep 120' terminal tool now
aborts in ~1s and the typed message runs as the next turn; wedged-worker
+ wedged-cleanup subprocess exits in 5.8s (watchdog) instead of hanging.
Follow-up on the salvaged #56392 guard. The cherry-picked change matched
custom:<name> pool entries against the primary by raw base_url string
equality, which (a) can't disambiguate two named custom providers sharing
one gateway base_url and (b) left a latent bare-"custom" entry bypass.
Route the match through get_custom_provider_pool_key(rt[base_url]) compared
against the entry's custom:<name> key, mirroring the sibling guard in
recover_with_credential_pool. Use CUSTOM_POOL_PREFIX instead of the literal.
Add regression tests for the custom same-endpoint (swap) and cross-endpoint
(skip) branches, plus the plain-provider fallback-pool case from #56885.
* fix(streaming): handle completed responses with empty/None choices
The streaming fallback guard added in #55932 recognized a completed
response object only when its `choices` was a non-empty list. But an
adapter can return a completed response whose `choices` is `None` or an
empty list (an error / content-filter / terminal frame) — still a whole,
non-iterable response, not a token stream. Those shapes fell through to
`for chunk in stream` and crashed with
'types.SimpleNamespace' object is not iterable
which is exactly issue #55933 (MoA `openai-codex` aggregator on
TUI/Desktop, where a stream consumer forces the streaming path).
Broaden the guard to discriminate on the PRESENCE of a `choices`
attribute (a genuine provider Stream object exposes none), disable
streaming for the session, and return the completed object so the outer
loop's normal invalid-response validation handles empty/None choices via
its retry path instead of iterating.
Based on the diagnosis in #56525 by @spiky02plateau (that PR normalized
the MoA aggregator return with a one-shot chunk iterator; the common
text/tool-call crash was already fixed at this seam by #55932, so this
extends the existing guard to cover only the remaining empty/None-choices
gap).
Fixes#55933
* refactor(streaming): simplify empty-choices guard body and parametrize tests
Post-review cleanup (no behavior change):
- Inline the single-use `response_choices` local and drop the redundant
`if first_choice is not None else None` guard (getattr(None, ...) already
returns the default safely).
- Collapse the two near-identical empty/None-choices regression tests into
one `@pytest.mark.parametrize` case.
Mutation-verified: reverting the guard to the old non-empty-list condition
still makes both parametrized cases fail with the historical
'types.SimpleNamespace' object is not iterable.
---------
Co-authored-by: spiky02plateau <155588579+spiky02plateau@users.noreply.github.com>
Wire ssl_ca_cert and ssl_verify through custom_providers config and env
vars into the keepalive httpx client, fixing APIConnectionError against
mkcert/self-signed Ollama proxies behind HTTPS.
Self-review follow-up on the salvaged approval-routing fix.
The initial adaptation re-read os.getenv("HERMES_YOLO_MODE") at session-build
time. That diverges from the repo's security invariant: HERMES_YOLO_MODE is
frozen into tools.approval._YOLO_MODE_FROZEN at import time precisely so a skill
running mid-process cannot set the env var and instantly flip the approval
bypass (a prompt-injection escalation path). A live re-read re-opened that hole
for the codex routing path.
- Add tools.approval.is_approval_bypass_active() — the canonical three-source
bypass check (frozen --yolo/HERMES_YOLO_MODE + session /yolo + approvals.mode
off) in one place. This is the 4th inline copy of that OR-chain (the three
sites in approval.py and tui_gateway/server.py:3121 all use the same idiom);
the helper is the shared chokepoint they can collapse onto.
- codex_runtime.py now calls is_approval_bypass_active() instead of the
hand-rolled mode-or-session check plus a runtime env re-read.
- Update the env-yolo test to patch _YOLO_MODE_FROZEN (the canonical test
pattern, e.g. tests/tools/test_yolo_mode.py) rather than setenv, which is
dead-on-arrival against the frozen constant.
Fail-closed default preserved on every branch; 28 integration + 77 session/yolo
tests pass; E2E confirms the real exec decision flips decline->accept only when
bypass is active.
On gateway/cron/non-CLI contexts the codex app-server runtime has no UI to
surface codex's exec/apply_patch approval requests, so they fail closed
(silently decline) — the bot appears responsive but cannot write files, with
no approval prompt anywhere ("patch rejected by user").
When the user has explicitly opted out of Hermes approvals (approvals.mode: off,
the /yolo session toggle, or HERMES_YOLO_MODE=1), collapse to codex's own
sandbox permission profile (~/.codex/config.toml) as the policy gate by passing
_ServerRequestRouting(auto_approve_exec=True, auto_approve_apply_patch=True) to
the session. Defaults (manual/smart/unset) preserve the current fail-closed
behavior — a no-op for users who have not opted out.
Reads the mode via the canonical tools.approval._get_approval_mode() (which
already normalizes the YAML-1.1 bare-'off'->False case) at session-build time,
so a mid-session /yolo toggle is honored too.
5 integration tests: each opt-out mechanism (config off, YAML False, env var,
session yolo) plus the default fail-closed regression guard.
Closes#26530
Co-authored-by: snav <jake@nousresearch.com>
test_references_run_in_parallel asserted elapsed < 0.9 for two 0.5s
sleeps that run concurrently. On a loaded CI runner, thread-pool
startup pushed the wall time to 0.9001s — a 0.14ms miss — flaking the
shard. Loosen to < 0.95, which still sits well below the 1.0s serial
floor, so a genuine serialization regression (>=1.0s) still fails hard.
- Track auth store source path on Nous state reads and write rotated
OAuth refresh tokens back to the same store, preventing stale-token
replays when Hermes falls back to a global/root auth.json.
- Skip Nous fallback entries locally when no access/refresh token is
present, suppressing repeated failed resolution attempts within a
session.
- Sync session model metadata after fallback switches so the gateway
DB reflects the backend that actually served the latest turn.
The persist user-message override was applied in place to the live messages
list. On the early crash-resilience persist (which runs BEFORE api_messages is
built), that stripped observed group-chat context off the live user message and
silently dropped it when observe_unmentioned_group_messages was enabled.
Fix at the single chokepoint: _flush_messages_to_session_db resolves the
override (idx/content/timestamp) locally and applies it ONLY to the row written
to the DB — the live dict is never mutated, so EVERY persist caller (early
persist, mid tool-loop flush, /resume, /branch) is protected uniformly. This
supersedes the earlier shallow-copy approach, which broke the intrinsic
_DB_PERSISTED_MARKER idempotency (copies never propagated the marker back to
the live dicts → duplicate rows) and closes the sibling class tracked in #56303.
Trailing empty-response scaffolding is still dropped from the live list in
_persist_session (unchanged behavior).
Salvaged from #48817; chokepoint reworked to coexist with the marker-based
dedup (#50372).
Co-authored-by: kyssta-exe <kyssta-exe@users.noreply.github.com>
Phase 2c review follow-up on the id()-reuse persistence fix:
- test_recycled_id_in_dedup_set_still_persists_new_message seeded an EMPTY
dedup set, so it never injected a collision and passed under id-based dedup
too (couldn't distinguish the designs). Replace with
test_stale_seed_id_from_prior_flush_cannot_suppress_new_message, which asserts
the durable invariant: the seed is empty after every flush (mutation-checked:
removing the post-flush reset now fails BOTH id-reuse tests).
- Refresh the _flush_messages_to_session_db docstring: it still described the
old per-session identity tracking; document the intrinsic-marker mechanism,
that _flushed_db_message_ids is now a one-shot seed, and the shared-dict
mutation safety note.
_flush_messages_to_session_db deduped persisted messages with a retained
{id(msg)} set (_flushed_db_message_ids) kept across turns. Once a flushed dict
is dropped from the live list (scaffolding rewind / in-place compaction) and
GC'd, CPython recycles its address onto a new assistant/tool dict whose id()
collides with the stale entry — so the real turn is silently never written to
state.db.
Replace the retained id-set with an intrinsic _DB_PERSISTED_MARKER stamped on
each dict. The id-set is demoted to a one-shot seed (valid only while the
caller's objects are alive) that is translated to markers and cleared after
every flush, so no id() outlives a flush to alias a future message. The marker
is _-prefixed so the wire sanitizers strip it before any request leaves.
Preserves the existing _is_ephemeral_scaffolding skip. Salvaged from #50372.
Co-authored-by: rrevenanttt <290873280+rrevenanttt@users.noreply.github.com>
When text compression can't reduce a 413 request further, evict base64
image parts from tool messages and retry once instead of dead-ending
with 'Payload too large and cannot compress further.'
A 413 is a request-body byte-size limit, not a token limit. browser_vision
screenshots (2-5MB base64 each) keep the HTTP body oversized even after
aggressive summarization. The strip pass passes remember_model=False so a
413 does not poison _no_list_tool_content_models — that set is for providers
that reject list-type tool content, a distinct failure mode.
Cherry-picked from #47397 by Tranquil-Flow; placed onto main's current
token-aware 413 recovery else branch.
Review follow-up on the concurrent-tool deadline salvage. timed_out_indices is
snapshotted from not_done at the deadline; a worker can still finish and write
results[i] in the window before the post-execution result loop reads it. The
loop unconditionally replaced results[i] with a fabricated 'timed out' message
for any snapshotted index, discarding a genuinely-successful (just-late) result.
Gate the timeout message on 'and r is None' so a real result always wins. Add a
regression test that forces the snapshot-vs-result-loop race deterministically
(mutation-checked: reverting the guard fails it). Also document the intentional
detached-worker leak at the executor abandon site.
A tool with no internal interrupt check (read_file, web_search, or a wedged
terminal backend) that never returns keeps the concurrent-tool poll loop alive
forever: the loop only breaks when all futures finish or an interrupt is
requested, and the 30s heartbeat resets the gateway idle monitor so idle-kill
never fires. The ThreadPoolExecutor was also used as a context manager, so its
__exit__ joined the hung worker with wait=True.
Add a wall-clock batch deadline (HERMES_CONCURRENT_TOOL_TIMEOUT_S, default 420s
— above the 360s web_extract timeout; 0/negative disables). When it fires:
cancel pending futures, signal an interrupt to the worker threads, abandon the
executor (shutdown wait=False, cancel_futures=True) so hung threads aren't
joined, and return a per-tool 'timed out' result for the unfinished calls while
still surfacing the finished ones. Also fixes the latent futures.index(f)
lookup (ambiguous with duplicate futures) by tracking a future->index map.
Salvaged from #54562.
Co-authored-by: Gustavo Mendes <87918773+gustavosmendes@users.noreply.github.com>
AIAgent.run_conversation() promises a dict with final_response, but 16
terminal-failure branches returned dicts that either omitted the key or
set it to None. Callers that index result['final_response'] directly
(run_agent.py chat() + the __main__ printer) turn a real provider/context
failure into an opaque KeyError instead of surfacing the actionable error.
Every offending branch already carried usable 'error' text, so this
mirrors that text into final_response for all 16 sites (8 that omitted the
key, 8 that returned None). Adds an AST regression test that fails if any
run_conversation() dict return omits final_response or sets it to a literal
None, and tightens the invalid-response test to assert final_response == error.
The MoA aggregator received the per-turn reference block merged into the most
recent `user` message. In an agentic tool loop that message is the original
task near the top of the context (everything after it is assistant/tool turns),
so injecting text that changes every iteration diverges the prompt prefix early.
The server's KV cache then cannot be reused and the entire conversation
re-prefills on every tool-loop step — full prefill each step, which dominates
latency on long contexts.
Append the reference block at the end of the prompt instead (merging into the
last message only when it is already a trailing user turn, i.e. plain chat).
This keeps the [system][task][tool-history] prefix stable and cache-reusable so
only the new block re-prefills, and gives the aggregator the references with
recency. Extracted as `_attach_reference_guidance` with unit tests.
Measured on a local llama.cpp aggregator over a long agentic task: KV-cache
reuse on follow-up steps went from ~0.3% to ~93-95% and per-step prefill on an
~80k-token context dropped from ~44s to <1s, with no change to output.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ephemeral empty-response/prefill recovery scaffolding (the synthetic
assistant "(empty)" turn, the user nudge, the terminal "(empty)"
sentinel, and the thinking-only prefill placeholder) exists only to
drive the next API retry; the in-memory loop pops it before appending
the real response. The append-only flush did not mirror that, so a
mid-turn persist could commit scaffolding to the SQLite session store
(and JSON log), and a resumed session would replay synthetic
"(empty)"/nudge turns as genuine context — re-poisoning the empty-retry
boundary forever.
Filter ephemeral scaffolding at both durable-write sites
(_flush_messages_to_session_db + _save_session_log), by flag not
position, so buried scaffolding (an answered nudge leaves the synthetic
pair mid-list) is skipped too. Covers all three flags including
_thinking_prefill.
Adapted onto current main's identity-tracking flush.
Cherry-picked from #41281 by petrichor-op.
Whole-bug-class follow-up to the tui_gateway fix: the same -1
last_prompt_tokens sentinel (parked by conversation_compression after a
compression) leaked into other status readers, producing a raw -1 or a
NEGATIVE usage_percent on the transitional turn:
- agent/context_engine.py get_status() (the ABC default every external
context engine inherits) — highest blast radius
- gateway/slash_commands.py /usage context line
- cli.py session usage printout
All clamped to >=0, mirroring cli.py _get_status_bar_snapshot and the
tui_gateway fix. Adds an ABC get_status sentinel-clamp regression test.
