Review follow-up: _pet_resolve_config (cli.py, the CLI pet pane gate) and
_pet_sig (tui_gateway/server.py, the status-line 'off' signature) read
display.pet.enabled with bare bool/truthiness, so a quoted 'false' still
enabled the mascot on the CLI surface. Route both through is_truthy_value
(default False) like the other three sites.
Empty-stream stalls that trip interrupt were raising InterruptedError
before the stream worker closed its physical LLM scope, corrupting the
Relay LIFO stack and cascading into a CLI EIO redraw storm (#81521).
Promote _split_model_config_default to hermes_cli/config.py as the single
shared helper for flattening dict-valued model.default/model.model config.
All 8 defense-in-depth sites now route through it instead of inlining
their own isinstance checks with inconsistent key orders.
Changes:
- Add split_model_config_default() to hermes_cli/config.py (public)
- cli.py: _split_model_config_default delegates to shared helper
- Fix key extraction order: agent_runtime_helpers.py was reversed
(default->model); now consistent (model->default) across all sites
- Remove provider-as-model-name fallback from main.py, oneshot.py,
model_tools.py, cli.py — provider is a routing key, not a model ID
- Add 'name' to _normalize_root_model_keys flattening loop and
_has_nested_default detection to cover the deprecated model.name alias
Tests: 118 passed + 1 skipped (cli_init, managed_scope, config).
E2E: 31/31 passed (config chokepoint, managed scope, crash site,
negative cases, edge cases).
The prior dict coercion converted a dict-valued model.default to a plain
model string but dropped the nested provider. On the interactive CLI path
requested_provider then fell back to the outer merged model.provider
(typically "auto", authoritative at runtime resolution), so the model
could be routed through the wrong active provider.
Canonicalize both halves at the shared boundary: _split_model_config_default
flattens a dict-valued default into (model, provider) and HermesCLI.__init__
feeds the nested provider into the requested_provider chain (still below an
explicit --provider argument). new_session reuses the same helper.
Adds regression coverage asserting the nested provider stays paired with the
model, that flat string defaults keep the outer provider behavior, and that
an explicit provider argument still wins.
A dict-valued model.default (e.g. {provider:..., model:...}) in config.yaml
was leaking into agent.model and crashing the agent at init:
AttributeError: 'dict' object has no attribute 'lower'
agent/agent_runtime_helpers.py: anthropic_prompt_cache_policy
This manifested on the Telegram gateway as an infinite reset loop: every
turn built an agent with model=dict, crashed during init, the gateway
treated the failed turn as a session needing reset, and /reset rebuilt the
agent and crashed again.
Coerce dict -> string at every model-resolution entry point so the value
is normalized once and never reaches a .lower() call as a dict:
- agent/agent_runtime_helpers.py: anthropic_prompt_cache_policy (the crash site)
- agent/agent_init.py: configured default model resolution
- cli.py: CLI config model + _normalize_model_for_provider
- hermes_cli/main.py: _has_any_provider_configured
- hermes_cli/oneshot.py: _run_agent model resolution
- hermes_cli/runtime_provider.py: _get_model_config default handling
- model_tools.py: _resolve_active_context_length
SessionDB could leave native SQLite handles open when construction failed
partway through schema/pragma/FTS/repair/lock/interrupt handling. Other
short-lived callers (MCP reads/polling, session search, reactions, trace
upload, insights, shutdown recovery) opened temporary SessionDB handles
without a complete ownership boundary. API-server profile caches and
RetainDB shutdown had similar late-close races. Under sustained load this
exhausted file descriptors (EMFILE).
- Close partially initialized SessionDB connections on every constructor
exception path via a finally block guarded by an initialization-complete
flag.
- Close temporary/cross-profile SessionDB handles in finally blocks across
CLI, MCP, search, trace, reactions, insights, and recovery paths.
- Add API-server per-profile cache ownership and disconnect cleanup.
- Make RetainDB writer-queue shutdown exception-safe: track connections per
thread, close on worker exit, reject new enqueues after shutdown starts,
and sweep any connections left by short-lived threads.
- Add regression coverage for constructor failures, worker-thread readers,
API disconnect failures, shutdown recovery, RetainDB late enqueue, and
foreign-loop async clients.
Salvage notes: the original PR's per-thread WAL-reader ownership changes
were superseded by main's read-connection pool (permits + checkout/return);
its cron timeout-abandon fix is credited separately to #72822's earlier
identical fix.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Ports Claude Code's /loop (and its /proactive alias) across every Hermes
surface. /loop [interval] <prompt> re-runs a prompt or slash command on a
recurring cadence inside the live session; omitting the interval enables
self-paced mode (starts at the floor, backs off exponentially while the
agent's replies stop changing, snaps back on change — local digest
comparison, zero extra LLM cost).
Stop conditions: agent-emitted LOOP_COMPLETE marker, --times N,
--until <condition> (judged by the existing goal_judge aux task,
fail-open), /loop stop, and a loops.max_ticks backstop budget.
Core: hermes_cli/loops.py (LoopState + LoopManager + shared
dispatch_loop_command), persisted per session in SessionDB state_meta
(loop:<sid>) so /resume picks it up; migrates across compression
boundaries like /goal. New SessionDB.list_meta_prefix() powers the
gateway's cross-session scan.
Surfaces:
- CLI: /loop handler + idle-fire and post-turn-complete hooks in
process_loop (mirrors the /goal hook shape; Ctrl+C pauses the loop)
- Gateway: /loop handler with route capture, mid-run control-verb guard,
post-turn tick completion, and a supervised loop_wakeup_watcher that
injects due wakeups into idle chats via the synthetic-message path
- TUI/dashboard/desktop: command.dispatch handler + per-session
notification-poller wakeup driver + post-turn completion in the turn
dispatcher; /loop added to the desktop slash palette
- /goal mixing: an active non-parked goal owns the idle boundary — loop
ticks defer until it finishes, pauses, or parks; real user input always
wins over both
Config: loops.{min_interval_seconds,max_ticks,self_paced_floor_seconds,
self_paced_ceiling_seconds}. Docs page + sidebar entry. 77 new tests.
Slack's 50-slash cap: /version moves to /hermes version to free the
native slot for /loop.
Completes the duplicated-chrome class fix:
- Focus-in (CSI I) now routes through the same rate-limited full-redraw
recovery as Ctrl+L//redraw, clearing ghost prompt/composer copies after
Alt+Tab / tab switches (focus-regain variant reported on #60920, #25337)
- Document display.cli_rebuild_scrollback_on_redraw in configuration.md
- Register the new default in hermes_cli/config_defaults.py (moved from
the pre-refactor config.py location the salvaged commit targeted)
Same-width SIGWINCH (typical tmux attach) skipped screen clear and
left previous_screen inconsistent, crashing redraw with
'cell' object has no attribute 'char'. Always clear on resize
recovery and retry _output_screen_diff with previous_screen=None
on AttributeError/TypeError.
The resize recovery treated the first SIGWINCH of a session as a width
change (no prior width to compare against), running the Ctrl+L-style
viewport clear + _OUTPUT_HISTORY replay. The 2J clear preserves
scrollback, so everything in the deque printed a second copy below the
still-visible original. After --continue/--resume the deque holds the
whole "Previous Conversation" recap plus the first live exchange, so a
benign resize signal (GNOME Terminal tab bar appearing, monitor-scale
change, focus events) duplicated the entire conversation.
Seed the width baseline when the resize hook is installed, and replay
only on an observed width change. The baseline is read from app.output
— get_app() at install time is still the DummyApplication whose
DummyOutput reports a fake 80 columns, which would turn the first real
signal back into a phantom width change. A real initial maximize or
restore still differs from the seeded width and is still recovered
(#49120 behavior preserved; verified in a pty harness both ways).
Fixes#65293
The original fix for #60920 cleared _OUTPUT_HISTORY in _recover_terminal_after_interrupt
to prevent the interrupt marker from being replayed on redraw. This approach:
- Discarded legitimate scrollback content unnecessarily
- Broke /redraw and Ctrl+L replay for any content after an interrupt
Instead, the interrupt marker is now printed via _cprint inside a
_suspend_output_history() context so it never enters _OUTPUT_HISTORY.
_recover_terminal_after_interrupt no longer needs to clear history — the
marker was never recorded, so _replay_output_history cannot duplicate it.
Also adds:
- _show_interrupt_marker flag to cleanly separate marker rendering from
response construction
- Focused regression tests covering the marker recording suppression,
history preservation after recovery, replay cleanliness, and flag logic
Fixes: #60941
The command path (/model <name> --provider <p>) called
_confirm_expensive_model_switch() inline. That modal blocks its calling
thread on a response queue (see _prompt_text_input_modal); on the
prompt_toolkit main thread the TUI event loop freezes, the modal never
renders, and the switch silently cancels after the 120s timeout — the
user sees a frozen terminal and 'Model switch cancelled.' without ever
seeing the warning. The picker path already dispatched confirm+apply on
a worker thread; the command path now mirrors that contract.
Extract the inline confirm+apply block into
_confirm_and_apply_cli_model_switch() (preserving --once restore and
persist semantics) and dispatch it on a daemon thread when a TUI app is
present, keeping the synchronous path for non-interactive/test use.
Tests: new test_model_switch_confirm_thread.py pins (a) confirm runs off
the main thread when _app is present, and (b) the no-app path stays
synchronous. Existing _StubCLI helpers forward to the extracted method.
Adds hermes_cli/model_selection_guards.py: a single evaluation point that
runs every selection guard (cost + the new data-policy guard) and returns
the warnings that fired. All seven model-selection surfaces (CLI picker,
cli.py TUI modal, gateway typed /model, dashboard web_server, TUI gateway,
Telegram and Discord pickers) now call the registry instead of importing
model_cost_guard directly — so the data-training-tier warning from
PR #81416 fires everywhere at once, and future guards need zero surface
wiring.
Guard modules keep their public APIs; existing mock patch points
(hermes_cli.model_cost_guard.expensive_model_warning) remain valid.
The route dict in _persist_model_switch_to_session used filtering
(omits falsy values) while the top-level keys used (writes
explicit None to trigger deletion in _merge_model_config_json). This
asymmetry meant stale keys from a previous /model switch survived in
the nested gateway_runtime dict even after the fix in #85261 that
properly deleted them from the top-level keys.
Fix: build the route dict with and derive the top-level keys
from **route so both shapes always use identical deletion semantics.
Also filter None values in session_gateway_runtime's reader since
gateway_runtime is replaced as a whole dict (not deep-merged), so None
values written by the persist path survive in the nested dict.
Found by /simplify-code 3-reviewer review on #85261 (all 3 reviewers
converged on the route dict asymmetry as the verdict-relevant finding).
When a prompt_toolkit run_in_terminal cooked->raw restore is lost (cancelled
coroutine, racing chained cross-thread windows from background-review
summaries / process-notification prints), the tty stays in cooked mode while
the Application still expects raw. The kernel line-buffers keystrokes and the
CLI appears to stop taking input even though the event loop is healthy.
Observed live 2026-08-13: interactive session left in 'icanon echo' after a
background skill-review fork + notify_on_complete turn; only an external
stty rescue restored input.
Fix: _heal_cooked_mode_drift() re-applies prompt_toolkit's own raw-mode flag
surgery when stdin's lflag has drifted cooked, and process_loop's idle branch
runs a rate-limited _check_termios_drift() watchdog that skips legitimate
cooked windows (app._running_in_terminal), agent-running phases, non-tty
stdin, and Windows.
patch_session_model_config merges key-level and only deletes on explicit
None. Dropping falsy values from the top-level patch let a previous
switch's api_mode/base_url survive the next switch — TUI/desktop resume
then restored e.g. openrouter with anthropic_messages wire mode, and a
failed bare-custom heal produced a stale-provider/new-endpoint route.
Write absent top-level values as explicit None so each switch fully
replaces the persisted route. Regression test against a real SessionDB;
mutation-checked. Also correct the heal comment (CLI is deliberately
stricter than the TUI recovery, which keeps bare custom with a base_url).
- Bare 'custom' from ModelSwitchResult.target_provider is the resolved
billing class, not a routable identity; persisting it verbatim made a
later --resume hard-fail once the config default moved off the custom
endpoint. Heal to custom:<name> via canonical_custom_identity at
persist time, and again on restore for rows written by older builds
(mirrors tui_gateway's _stored_session_runtime_overrides recovery).
- --global switches now also update the session row: the row records
what THIS session runs, otherwise resume restored the stale
creation-time model over the user's new global choice.
- Only adopt resolved credential_pool alongside its api_key (don't null
the ambient pool when resolution returns no credentials).
- 3 new tests; healing path mutation-checked.
- Extract the two duplicated /model session-persist blocks into
_persist_model_switch_to_session; persist the route BOTH nested
(gateway_runtime, CLI reader) and top-level (TUI gateway's
_stored_session_runtime_overrides reader) so a CLI switch also
survives a desktop/TUI session.resume.
- Add SessionDB.session_gateway_runtime as the canonical tolerant
row-level route reader (session_yolo_enabled precedent); use it in
_restore_session_model instead of hand-rolled JSON parsing.
- Clear stale launch-time _explicit_api_key/_explicit_base_url when
resume restores a different provider (same leak guard
_apply_model_switch_result already has).
- 12 new tests incl. a real-SessionDB round trip; mutation-checked.
Two bugs caused resumed sessions to use the config default model instead
of the model the session was actually using:
1. CLI /model switch didn't persist the new model to the session DB row.
The gateway calls update_session_model() after a /model switch, but
the CLI path only updated in-memory state and the agent's runtime —
it never wrote the new model to the sessions.model column. So the DB
row always kept the original model from session creation.
2. Resume didn't restore model/provider from the session DB row.
_preload_resumed_session and _init_agent restored CWD and YOLO from
session_meta, but never read session_meta['model'] back into
self.model/self.provider. So even if the DB had the right model,
resume would use whatever was in config.yaml.
Fix:
- _handle_model_switch / _apply_model_switch_result: call
update_session_model() after a session-scoped /model switch (skipped
for --once and --global), mirroring the gateway's behavior.
- New _restore_session_model() method: restores model/provider from
session_meta on resume, with provider/base_url/api_mode from
model_config.gateway_runtime. Also swaps the running agent in-place
for mid-chat /resume.
- Call _restore_session_model() from all three resume paths:
_preload_resumed_session, _init_agent, and _handle_resume_command.
- Track _explicit_model_override flag so -m/--model on the CLI overrides
resume (user intent wins). Cleared on /new.
Adds a 'council' synthesis style to MoA (per preset via synthesis_style,
one-shot via the new /council command on CLI + gateway). Reference models
answer independently; the aggregator chairs the deliberation and produces
a user-facing report of consensus, per-model disagreements (with the
differing assumptions behind them), unique contributions, and a
recommendation with an explicit confidence level.
Inspired by Perplexity's Model Council rollout to Perplexity Computer
(changelog 08/04/26): pick a board of 2-8 models, run them independently,
synthesize where they agree/disagree and what each uniquely surfaces.
Part A — pre_command observer hook (observer-first per #64182 ground rule 3):
- New VALID_HOOKS event `pre_command`: fires when a recognized slash command
is about to be dispatched, BEFORE the handler runs, on both surfaces:
- CLI: cli.py process_command (right after alias resolution)
- Gateway: gateway/run.py _handle_message cold-path canonical dispatch
- Payload: surface ('cli'|'gateway'), command (canonical), alias_used,
args_raw, session_key, platform. Return values IGNORED in v1; a plugin
returning a directive-shaped dict gets a debug log so future
block/rewrite adopters are discoverable (#64231 taxonomy).
- Deliberately NOT fired on the gateway running-agent intercept path
(/stop, /approve, busy_policy dispatch during an active run): those are
control-plane escape hatches on an in-flight run and must stay outside
plugin observation/veto reach.
- fire_pre_command_hook() helper never raises, so broken plugin infra can
never break command dispatch.
Part B — ctx.call_mcp (capability-gated, default-off, ground rule 4):
- PluginContext.call_mcp(server, tool, arguments, timeout=30): synchronous,
callable from plugin hooks/tools, routes through the EXISTING native MCP
client machinery (tools.mcp_tool._make_tool_handler: background loop,
trust-tier gates, circuit breaker, reconnect) — never a parallel client.
- Gate: plugins.entries.<id>.mcp_allowlist (list of server names).
Absent key / unreadable config / non-list value => default-deny.
Unlisted server raises PermissionError naming the exact config key.
TODO seam left for the #64228 declared-capability model.
- Bounded: timeout clamped to 1-600s and forwarded to the MCP loop call;
results capped at 64KB with truncation marker; stable
{ok, result|error, structuredContent?, truncated?} envelope.
Tests (transport mocked, no live MCP servers):
- tests/hermes_cli/test_pre_command_hook.py: both surfaces fire, canonical
alias reporting (/exit->quit, /q->queue), hook-before-handler ordering,
control-plane exclusion, hook failure non-fatal, observer-only directive
handling.
- tests/hermes_cli/test_plugin_call_mcp.py: default-deny (absent entry,
unreadable config, non-list, '*'), allowlist enforced per-server,
denied calls never touch transport, timeout forwarding/clamping,
result truncation, error/structuredContent envelopes.
Docs: hooks.md shipped-catalog row for pre_command; plugins.md
"Calling MCP servers from plugins" section with the security note.
Closes#64204
The Browser Use CLI became the default browser backend, but nothing
provisioned it: users without uv/uvx (field report from DongyangHe on
macOS) silently fell back to the built-in browser tools with no notice.
- install_cli() in tools/browser_use_cli.py: uv tool install browser-use
via the managed uv (bootstrapped on demand), linked into
$HERMES_HOME/bin (UV_TOOL_BIN_DIR)
- _find_cli() now also probes $HERMES_HOME/bin for browser-use/uvx —
Hermes' managed uv is not on the user's PATH
- hermes tools post_setup actually installs (Camofox standard) instead
of printing instructions
- install.sh / install.ps1 provision the CLI at install time
(best-effort, non-fatal, honors --skip-browser)
- CLI startup shows a one-line notice (24h rate-limited) when the
default backend downgraded to the built-in tools
Cold CLI time-to-banner was ~1.8s (hermes) / ~2.8s (hermes -w). The banner
path was paying for work the session doesn't need before first input:
- aux availability probes built REAL OpenAI/httpx clients (openai import
~0.3s + SSL context) just to answer check_fns. New aux_probe_mode()
returns a cache-excluded stub; resolution policy unchanged.
- tools/mcp_tool imported the mcp SDK (~260ms, mcp.types pydantic model
construction) at module import even with zero MCP servers configured.
SDK import is now lazy behind _ensure_mcp_sdk(); _MCP_AVAILABLE is a
find_spec probe so every existing gate/test keeps its semantics.
- banner blocked 500ms on the update-check prefetch; now waits 50ms and
defers the warning line to a daemon thread (prints above the prompt).
- banner recomputed get_tool_definitions + skills scan + git state every
launch; now snapshotted to ~/.hermes/cache/banner_snapshot.json keyed on
(config.yaml, .env, checkout rev, toolsets) and replayed on warm launches
with a background refresh. Agent tool list is still computed fresh.
- _resolve_active_context_length probed the Nous portal /models (~200ms
network) per launch; the tool-search gate now prefers the on-disk
context cache when present.
- schema reconciliation re-executed SCHEMA_SQL in a scratch SQLite DB
(~85ms) per SessionDB(); the reference parse is now disk-memoized by
DDL hash (live-DB diffing still runs every startup).
- bundled-skills sync (~120-170ms rglob/hash) moved off the startup path
to a daemon thread; plugin discovery starts in the background and every
synchronous consumer joins via discover_plugins().
- hermes_cli.auth imported httpx eagerly (~30ms); now a lazy proxy that
test monkeypatching still reaches (setattr forwards to the real module).
- fast chat launch: unambiguous 'hermes'/'hermes chat' invocations skip
building all ~40 subcommand parsers (bails to full dispatch on anything
else, incl. container mode).
- -w path: git worktree add runs with checkout.workers=8 (0.6s→0.2s) and
overlaps HermesCLI construction; --skills preload runs in the background
and is folded in at agent init (finalize_preloaded_skills, same
fail-loud contract for fully-unknown skill lists); stale-worktree prune
moved off the banner path.
Warm results (PTY time-to-banner, 5-run): hermes 1.80s → 0.38-0.40s;
hermes -w -s hermes-agent-dev --yolo 2.82s → 0.57-0.69s.
Personality persistence used to be split per surface: the TUI/desktop wrote
the NAME to display.personality while the CLI/gateway wrote rendered TEXT
into agent.system_prompt (and their /personality none only blanked the
text, leaving the name behind). When #81946 made display.personality
authoritative everywhere, stale names written long ago resurrected
personalities users had turned off - kawaii defaulting on after updating.
- hermes_cli/personality.py: new single owner of personality state.
Built-in personality definitions, neutral-name normalization, rendering,
availability (built-ins overlaid by agent.personalities), overlay
resolution, and the ONLY sanctioned persistence path
(persist_personality -> display.personality; never agent.system_prompt).
- v34 config migration: one-time reset of display.personality to none
(announcing which personality was cleared and how to re-enable), plus a
scrub of agent.system_prompt when it verbatim-equals a known personality
render (machine-written by the old CLI/gateway). Hand-written manual
prompts are never touched.
- All surfaces rewired through the module: CLI /personality (incl. active
marker in the list), gateway /personality, TUI config.set + slash path
(which previously applied without persisting), TUI config.get (reports
the EFFECTIVE personality), completer, hermes config display, and the
tui_gateway health probe.
- cli.py/config duplicates removed: built-ins now defined once; the
desktop mirrors them from one lib module (src/lib/personalities.ts).
- Docs updated: selection lives in display.personality, built-ins always
available, one-time reset note.
The classic CLI's light-mode detection sends an OSC 11 background-color
query and blind-waits 100ms. Terminal managers that swallow OSC 11
(herdr) made every startup pay the full 100ms for nothing, and any
in-order relay that answers slower than 100ms (SSH bridges, WSL,
loaded tmux servers) delivered the reply AFTER prompt_toolkit owned
the tty — the rgb:.../escape payload leaked into the input line as
gibberish characters.
Fix: send the OSC 11 query followed by a DA1 sentinel (ESC [ c) in one
write — the same fence pattern the Ink TUI's TerminalQuerier uses.
Terminals answer queries in order and effectively all of them answer
DA1, so the DA1 reply proves the terminal has already processed (or
ignored) our OSC 11. Fast terminals and herdr-style multiplexers now
resolve in ~1ms; slow relays get their reply consumed instead of
leaked; a hypothetical DA1-mute terminal falls back at a 1s safety
net, same clean timeout path as before.
Adds real-PTY regression tests covering the herdr-style (DA1-only),
slow-relay (+300ms reply), and fully mute emulator behaviors, each
asserting zero leftover bytes in the tty buffer. Sabotage-verified:
the slow-relay test fails against the old un-fenced code with the
exact leak payload in LEFTOVER.
On slow terminals (VPS, containers under load), the OSC 11 background
color response can arrive after TCSAFLUSH completes — leaking into
prompt_toolkit's input buffer and silently consuming the first 1–3
characters of every response.
Add a 50ms post-flush drain window that reads and discards any late
bytes via select() + os.read() before prompt_toolkit grabs the tty.
Fixes#40250
Titling fired on the first response, so a session sat unnamed for the whole
opening turn - p50 151s, p90 1212s across real sessions, because a turn is
tool calls, not one round-trip. A turn that failed or was interrupted never
got a title at all. Four surfaces each carried their own copy of the call.
Move it into the shared turn prologue and split it in two: a deterministic
title derived from the user's opening message, written inline before the
model runs, then one small-model call that upgrades it. The response is
constrained to a JSON object so there is no preamble to strip, and control
wrappers are stripped rather than refused, so a slash command titles as
what the user asked for instead of the command itself.
Persist display.personality only; apply rendered text as an in-session
overlay across CLI, TUI config.set, and gateway /personality.
Co-authored-by: kyssta-exe <kyssta-exe@users.noreply.github.com>
Co-authored-by: EMT5320 <1908937833@qq.com>
Salvage of PR #17973 by @TKCen (Sebastian Hänisch), re-implemented on
current main to preserve speed/instructions/provider params,
prepare_spoken_text normalization, OPUS_VOICE_PLATFORMS, is_write_denied
path security, microsecond timestamps, and the streaming-TTS gate.
- Split long TTS text into provider-safe chunks instead of truncating
- Pack generated audio against platform upload limits (Discord 10MB,
Telegram 50MB, configurable via tts.delivery_profiles)
- Combine chunks with ffmpeg (OGG/Opus re-encoded, MP3 stream-copied)
- Multi-file delivery when combination fails or would exceed limits
- Remove hard [:4000] truncation from all callers (cli.py, voice.py,
gateway/run.py, gateway/platforms/base.py)
- Gemini TTS raises ValueError instead of silently truncating when
composed prompt exceeds the provider limit
Simplify-code fixes: removed dead all_touched_paths set, added
try/finally for scratch file cleanup on exception, clean error response
on chunk failure instead of leaking stale file_path.
When the CLI streams a response token-by-token, it marks the response as
already displayed and skips re-printing after the tool loop. This means any
content appended by a transform_llm_output plugin fires after streaming — the
appended text is in the final response and stored in history, but never shown
to the user.
Fix by tracking the pre-transform response in finalize_turn() and including it
in the result dict as pre_transform_response. The CLI then checks whether the
response was transformed and, if so, prints only the appended suffix.
Previously the already_streamed branch was a no-op pass. Now it detects
post-stream plugin additions and outputs them without re-printing the streamed
body.
Connection-class infrastructure failures on remote terminal backends (SSH
host unreachable/timed out, Docker daemon down or missing, remote file
sync failing on a dead link) previously surfaced to the model as raised
RuntimeError tracebacks. The model got a stack blob with no guidance and
the failure was indistinguishable from a tool bug.
Now:
- New EnvironmentConnectionError(RuntimeError) in tools/environments/base.py
carrying a reason + retry_hint. Subclassing RuntimeError keeps every
existing catcher working.
- ssh.py classifies connect-refused, connect-timeout, scp, remote mkdir,
bulk upload/download, and remote rm failures as connection errors.
- docker.py classifies all four _ensure_docker_available() failure paths
(missing exe, non-executable exe, daemon timeout, `docker version`
failure).
- terminal_tool catches EnvironmentConnectionError and returns a
structured tool result the model can act on:
{"status": "degraded", "reason": ..., "retry_hint": ..., "exit_code": -1}
The failed backend is evicted from the environment cache so a later
call retries from scratch — recovery is automatic once the backend is
reachable again.
- Config gate terminal.degraded_mode: warn|fail (default warn) in
config.yaml, bridged as TERMINAL_DEGRADED_MODE across all four bridge
sites (cli.py env_mappings, gateway/run.py _terminal_env_map,
TERMINAL_CONFIG_ENV_MAP, DEFAULT_CONFIG). "fail" preserves the
historical error+traceback tool result.
- Command failures (nonzero exit, command-not-found) are NOT touched —
only infrastructure failures classify as degraded.
Tests: tests/tools/test_terminal_degraded_mode.py (15 tests) covering
exception classification for ssh+docker, structured degraded results,
no-caching of degraded envs, recovery after the backend returns,
nonzero-exit results unaffected, fail-mode preservation, invalid-mode
fallback to warn, and the four-site config bridge invariant.
Inspired by: Claude Cowork degraded-backend behavior (idea-level,
docs-only evidence).
Follow-ups on top of the salvaged #80696 fix (review findings):
- Sibling sites: rollback.restore, gateway /retry, CLI /retry and /undo N,
and both CLI resume turn counters now use is_user_originated_turn so
legacy-persisted standalone handoffs (durable role=user, no display_kind)
can never be truncation targets or counted as user turns (#80622
suggested regression 4, dispatcher-wide).
- Site-1 guard: hoist the api_call_count decrement + iteration-budget
refund above the break so a skipped turn no longer leaks a budget unit
and finalize_turn logs the true call count (matches the ollama early-exit
and the site-2 sibling).
- Site-2 guard: run the handoff guard BEFORE reanchoring so a restored
user ask is what the anchor lands on, not a stale pre-restore index.
- SUMMARY_PREFIX: add the mid-tool-loop carve-out the code-side guard
already implements, so a literal-minded model doesn't halt an in-flight
exchange after in-place compaction.
- Skip path returns a short compaction status instead of replaying the
previous turn's answer (finalize_turn would append it as a fresh
assistant row — duplicate prose in transcript and delivery).
- is_tts_echo sliding window: return True immediately when ratio >= threshold
instead of scanning all remaining windows. Common echo case drops from
~4s to <1ms for long spoken text (found by /simplify-code efficiency review).
- Clear _voice_barge_phase in _voice_submit_barge_utterance finally block
alongside _voice_barge_capture, preventing stale phase from a previous
trip affecting a future call.
- Add _voice_last_tts_text and _voice_barge_phase to _make_voice_cli test
helper so it matches __init__ state.
The full-duplex barge-in listener added in 5081551f0 stays active during
TTS playback with no acoustic echo cancellation. On some speaker/mic
combinations, TTS bleed alone crosses the barge threshold, gets
transcribed, and is queued as the next user turn -- whose reply is then
spoken, captured, and queued again, producing an unbounded TTS -> STT ->
TTS feedback loop (#75780).
Add a fail-closed transcript-level guard: when a barge trip happens during
the playback phase, compare the captured transcript against the TTS text
Hermes just spoke (tools/voice_mode.is_tts_echo, a language-agnostic
character-level similarity ratio). A close match is dropped instead of
queued, and the mic is handed back to the normal continuous-listening
loop. Generation-phase trips (no TTS playing, so no bleed is possible)
are unaffected.
/refine [focus] fires the existing background review fork
(AIAgent._spawn_background_review) immediately instead of waiting for
the automatic 10-turn memory / 10-iteration skill nudge counters.
Optional focus instructions are appended to the review prompt so the
fork prioritizes what the user asked for (e.g. '/refine save the
deploy workflow as a skill').
- New optional focus parameter threaded through
_spawn_background_review -> spawn_background_review_thread.
Automatic post-turn reviews pass None and their prompts are
byte-identical to before.
- CLI handler snapshots conversation_history; gateway handler pulls
the idle session's cached AIAgent from _agent_cache (rejected while
the agent is running).
- Review runs in a daemon thread against the snapshot — live
conversation, message alternation, and prompt cache untouched.
- Slack stays under the 50-slash cap via /hermes refine.
Adapted from the /refine concept in Prime Intellect's Prime-Agent
(Continual Harness); Hermes' equivalent durable state is the
memory + skill stores, so the review fork is the natural target.
/heartbeat every <interval> <prompt> gives the current session one
recurring instruction. When the session is idle and the interval has
elapsed, the prompt is injected as a plain user turn — same
conversation, same context, prompt cache and role alternation
untouched.
- CLI: idle-poll watchdog thread (wake-word watchdog pattern) feeding
_pending_input; gateway: single gateway-wide async poller injecting
through the adapter FIFO. Busy sessions coalesce their tick to the
next idle poll.
- Missed ticks coalesce (anchor resets on fire) — a busy hour yields
ONE heartbeat turn, never a backlog. Real user messages always win.
- 60s interval floor; injected prompt carries a don't-invent-work
guard so idle heartbeats don't generate busywork.
- State persists in SessionDB.state_meta (heartbeat:<session_id>),
survives /resume, migrates across compression session rotations
alongside /goal state.
- Session-scoped and in-process by design — durable cross-process
schedules remain the cron subsystem's job (docs draw the boundary).
- Slack stays under the 50-slash cap via /hermes heartbeat; ghost-text
suggester now prefers the shortest prefix match so /he still
suggests /help.
Adapted from the session-heartbeat concept in Prime Intellect's
Prime-Agent (/heartbeat).
/export [profile] [-o output.tar.gz] bundles a profile into the shareable
archive; /import <archive> [--name <name>] adopts one as a new profile
(wrapper alias created when safe). Registry-driven, cli_only, so the CLI
and TUI both pick them up in autocomplete and help.
A session's YOLO bypass lived only in the in-memory
tools.approval._session_yolo set (or the process-frozen --yolo env
var), so resuming a session in a fresh process silently reverted the
user's /yolo ON — dangerous commands started prompting again.
Persist a yolo_mode flag in the session row's model_config JSON and
restore it on every CLI resume path:
- SessionDB.set_session_yolo() merges the flag into model_config
(same lineage-preserving merge as update_session_runtime_lock);
SessionDB.session_yolo_enabled() reads it back, false on any parse
failure.
- /yolo toggle persists ON and OFF through the new helper; the
compression/branch session-id rotation carries the flag onto the
continuation row.
- --yolo launches record the flag at session creation (agent_init),
and a /yolo toggled before the lazily-created row exists is carried
into the creation-time model_config (_ensure_db_session).
- HermesCLI._restore_session_yolo() re-enables the bypass on startup
--resume/-c, the deferred init path, and mid-chat /resume, with a
visible '⚡ YOLO mode restored from session' notice. No-op under a
frozen process-wide --yolo and never enables on absent/garbage flags.
When an approval prompt expired without a response, every CLI-side path
collapsed the timeout into the same 'deny' choice as an explicit user
refusal, so the agent was told the user denied the action when the user
simply never answered. The gateway wait already distinguished the two
('timed out without user response... Silence is not consent.'); this
brings the CLI/TUI/ACP surfaces to parity.
- prompt_dangerous_approval(): input()-path expiry now returns a distinct
'timeout' choice (still fail-closed).
- cli.py _approval_callback + hermes_cli/callbacks.py approval_callback:
deadline expiry returns 'timeout' instead of 'deny'.
- check_all_command_guards / _run_approval_gate CLI tails: 'timeout' maps
to outcome='timeout' with a 'timed out without user response... Silence
is not consent.' BLOCKED message (matching the gateway wording);
explicit deny keeps outcome='denied' and gains user_consent=False for
shape parity.
- computer_use: 'timeout' verdict threads through the CLI adapter and
yields a 'prompt timed out — the user did not respond' error instead of
'denied by user'.
- ACP permissions bridge: FutureTimeout returns 'timeout' (other failures
still 'deny'); elicitation maps 'timeout' to 'cancel' like the gateway's
unresolved outcome; codex wire mapping documents deny/timeout→decline.
- write_approval already treats unknown choices as 'stage, not drop', so
a timeout now stages the memory write instead of silently refusing it.
Every timeout path remains fail-closed — the action never runs; only the
classification reported to the agent changes.
The inverse of the inbound webhook platform: hooks.outbound in
config.yaml lists HTTP targets + the plugin-hook events they subscribe
to (on_session_end, subagent_stop, post_tool_call, ...). Each firing
POSTs a JSON payload (same top-level shape as shell hooks' stdin wire)
signed GitHub-style with HMAC-SHA256 (X-Hermes-Signature-256).
Rides the existing hook bus — notify-only callbacks registered on the
plugin manager at the same CLI/gateway/main entry points as shell
hooks. Delivery is fire-and-forget via a bounded queue + single daemon
worker thread, so a dead endpoint can never stall a tool call. Bounded
retries (5xx/conn errors once; 4xx never). secret_env preferred over
inline secret. HERMES_SAFE_MODE skips registration. hermes hooks list
shows outbound targets with signed/UNSIGNED status.
Zero new model tools, zero new subsystems.
Makes interrupt-protected context compression cancellable by an explicit
user or lifecycle stop, without weakening protection against ordinary
incoming messages, voice interjections, or active-turn redirects.
Separates explicit hard cancellation from ordinary interrupt/redirect
state with a dedicated threading.Event; introduces
AuxiliaryExplicitCancellation as an attempt-local frozen-cause signal;
isolates the synchronous provider callback in a bounded daemon worker
during protected compression; atomically linearizes Codex timeout
cleanup against explicit cancellation; propagates hard cancellation
through child agents and explicit stop surfaces; serializes hard-cancel
admission against compression commit admission with
CompressionCommitFence; aborts before session rotation or late DB commit,
restores in-place transcript mutations and compressor state, and releases
the heartbeat and compression lease.
Based on #74449 by @suparious. Resolved merge conflicts in
agent/context_compressor.py (feasibility check + try/except) and
tui_gateway/methods_session.py.
thatssoheil