The _normalized_message_timestamp_for_key helper was preserving
microsecond precision (%.6f). When the same message is persisted by
both the WebUI sidecar JSON writer and the Hermes agent state.db
writer, their timestamps can differ by a few microseconds, causing
_session_message_merge_key to produce different keys for the same
logical message and letting both copies survive the dedup pass in
merge_session_messages_append_only.
Truncating to second-level granularity collapses sub-second drift to
the same key, so the duplicate is suppressed correctly.
Fixes#2616
Four code-review comments from the automated Copilot reviewer on this PR:
1. `_journal_tool_already_present` dedupe was session-wide, so a
legitimately-repeated tool (e.g. a second `terminal: ls` in an
earlier turn) could cause the retry path to falsely skip
materializing the recovered tool card. The helper now takes a
keyword `stream_id` argument; when supplied, a tool card whose
`_recovered_stream_id` is set AND differs from the candidate is no
longer treated as a duplicate. Untagged tool cards (live tools, or
tool cards carried over from a pre-tagging core transcript) still
match, preserving the existing 'core transcript already has this
tool, don't duplicate' invariant. Two new tests in
`TestJournalToolDedupeScoping` cover both legs of the rule.
2./3. The troubleshooting FAQ pointed at `~/.hermes/webui/sessions/session_<sid>.json`
and `~/.hermes/_run_journal/...`. The actual sidecar filename has
no `session_` prefix and the run-journal lives under the WebUI
sessions dir (`~/.hermes/webui/sessions/_run_journal/<sid>/<stream>.jsonl`,
default). Both paths fixed and an explicit note added about
`HERMES_WEBUI_STATE_DIR` overriding the state root.
4. Drop unused `json` / `queue` / `Path` imports from
`tests/test_session_lost_response_regression.py` so the file stops
carrying noise that future linting would flag.
When the WebUI process restarts mid-stream and sidecar repair runs while
the run-journal for the dead stream is not yet visible on disk (WSL2 9p
/ DrvFs page-cache loss, un-fsynced journal tail on network FS, …),
`_append_journaled_partial_output()` returns False and the marker is
permanently baked with the "no agent output was recovered" wording even
though the journaled tokens appear on disk shortly afterwards.
This commit reframes the recovery contract so the read side can
self-heal:
* `_interrupted_recovery_marker` gains a `pending_retry=True` mode
that produces a third wording ("Recovering the partial output …
reload this session to retry.") and stamps a
`_pending_journal_recovery` flag.
* `_apply_core_sync_or_error_marker` now writes that pending-retry
marker (with `_journal_retry_stream_id`,
`_journal_retry_attempts`, `_journal_retry_first_seen_ts` meta)
whenever it cannot recover visible output AND the stream id is
known. The legacy "no output" wording is reserved for the
no-stream-id case. The core-sync branch leaves marker emission to
the existing visible-output check (the core transcript itself is the
canonical history in that branch).
* A new `_retry_journal_recovery_in_place(session)` helper re-runs
`_append_journaled_partial_output(…, dedupe_existing=True)` for the
latest pending marker. On success the marker is promoted in place to
the recovered-output wording, the journaled rows are reordered to
sit above the marker (preserving chronological order), and all
retry meta is stripped. On failure attempts is incremented; after
_JOURNAL_RETRY_MAX_ATTEMPTS (12) or _JOURNAL_RETRY_GIVEUP_SECONDS
(24h) the marker is demoted to a neutral "Partial output may have
been lost." wording.
* `get_session()` cheaply short-circuits via
`_session_has_pending_journal_retry()` and invokes the helper on
both cache-hit and cold-load paths when a pending marker is found.
`metadata_only=True` skips the helper to keep sidebar refresh
cheap. The retry call runs OUTSIDE the SESSIONS LOCK to avoid a
deadlock with `session.save()` write paths.
No streaming write path or run_journal fsync behaviour is changed — the
fix is read-side only.
When API server runs append messages directly to state.db, reconcile WebUI sidecar sessions with those canonical rows across API responses, model-facing streaming context, and active browser refresh.
Add append-only state.db merge helpers, metadata-only counts for refresh polling, and regression coverage for API visibility, context incorporation, and frontend refresh behavior.
- Session.composer_draft field: {text, files} stored in session JSON
- POST+GET /api/session/draft endpoint for save/load
- loadSession: save draft before switch, restore from S.session.composer_draft
- textarea input: debounced 400ms auto-save to server
- send(): clear draft after message is sent
- lockComposerForClarify(): save draft before card locks composer
- _restoreComposerDraft: clears textarea when target has no draft, guards
against stale responses racing new session loads, exact text comparison
- Session.compact(): includes composer_draft in response
- Fix: use handler.command instead of parsed.method (ParseResult has no .method)
Co-authored-by: Minimax <noreply@minimax.io>
Hermes Agent