A readable state.db can still reject every message write through the
messages_fts* triggers when the FTS5 index is corrupt: base-table reads and
PRAGMA integrity_check pass, but INSERT INTO messages fails with 'database
disk image is malformed'. The gateway reloads conversation_history from disk
each turn, so a silently-failed write hands the next turn stale/empty history
even though the same cached AIAgent still holds the live transcript — causing
immediate same-session amnesia. (#50502)
- hermes_state.py: _db_opens_cleanly() now drives a rolled-back message write
through the FTS triggers, so write-only corruption (which the read-only
probe reported healthy) is detected. repair_state_db_schema() gains an
in-place FTS5 'rebuild' strategy (tier 0) before the dedup/drop tiers, plus
an already_healthy short-circuit. Both 'hermes sessions repair' and
'hermes doctor' route through these, so the fix covers the whole class.
- hermes_cli/doctor.py: the state.db check runs the write-health probe even on
the success (readable) path and repairs in place with --fix.
- gateway/run.py: _select_cached_agent_history() prefers the cached agent's
longer live _session_messages over a shorter persisted transcript, so an
FTS write failure can't wipe in-session context.
- tests: regressions for write-health detection, in-place repair preserving
rows + resuming writes, the already_healthy shortcut, and the gateway guard.
Combines the approaches from #50504 (@0-CYBERDYNE-SYSTEMS-0, issue author),
#52165 (@davidgut1982), and #50576 (@trevorgordon981).
* fix(state.db): recover from malformed sqlite_master so hidden sessions reappear
The corruption class behind "Desktop/Dashboard show no sessions while
hundreds of session files sit on disk" is a malformed sqlite_master — most
often a duplicate object row, e.g. two CREATE VIRTUAL TABLE messages_fts
entries — surfacing as:
sqlite3.DatabaseError: malformed database schema (messages_fts) -
table messages_fts already exists
SQLite parses the whole schema while preparing the FIRST statement on a
connection, so on this class every statement fails before it runs: PRAGMA
journal_mode (which is where SessionDB.__init__ actually trips, in
apply_wal_with_fallback, BEFORE _init_schema), PRAGMA integrity_check, and
even DROP TABLE. The only operations that still work are
PRAGMA writable_schema=ON plus direct sqlite_master surgery. A plain
FTS-index rebuild at the _init_schema layer therefore cannot reach or fix
this; the canonical sessions/messages rows are intact — only the derived
schema is broken.
Add a dedicated recovery that operates where the failure actually happens:
- hermes_state.repair_state_db_schema(): backs up the raw file first, then a
least-destructive ladder — (1) de-duplicate sqlite_master keeping the
lowest rowid per object (preserves the existing FTS index), escalating to
(2) drop every messages_fts* schema object + VACUUM and let the next open
rebuild the FTS index from messages. sessions/messages are never modified.
Plus is_malformed_db_error() to discriminate this class.
- SessionDB.__init__ auto-heals: on a malformed-schema open error it repairs
once (process-guarded against loops / concurrent web_server opens) and
reopens, so Desktop/Dashboard recover on their own instead of silently
showing "no sessions".
- hermes doctor --fix detects the malformed class and repairs it (reporting
the recovered session count + backup name).
- hermes sessions repair [--check-only] [--no-backup] runs on the raw file
path, since SessionDB() itself cannot open a malformed DB.
Supersedes #32589 and #33869: both targeted FTS corruption but gated their
repair behind statements (integrity_check / SELECT / DROP TABLE) that
themselves fail on this class, and neither addressed the apply_wal_with_fallback
open-time failure. Credit preserved via Co-authored-by.
Closes#33865.
Co-authored-by: João Vitor Cunha <145560011+plcunha@users.noreply.github.com>
Co-authored-by: Tuna Dev <273476039+tuancookiez-hub@users.noreply.github.com>
* test(state.db): cover strat-B escalation + unrepairable safe-fail paths
---------
Co-authored-by: João Vitor Cunha <145560011+plcunha@users.noreply.github.com>
Co-authored-by: Tuna Dev <273476039+tuancookiez-hub@users.noreply.github.com>
