board-parity-jsonl-db-divergence
Done. Solution verified end-to-end.
Deliverable: ~/board-parity-jsonl-db-divergence.md — self-contained markdown with title, root-cause analysis, the exact fix, and a verification section.
Repair script: /tmp/imhotep_t224_sync_events.py (re-created; the referenced pattern file did not exist in this environment).
schedulerd (Go, SQLite via modernc.org/sqlite) appends every event to the canonical events.jsonl and mirrors it into the events table in board.db. The appender's DB-insert path is skipped for dry-run tick events (action=idle, worker=dry-run) — they land only in the JSONL, so the parity probe reports DIVERGENCE (JSONL 254 vs DB 252). JSONL is canonical, so it's a stale-DB problem, not data loss.
One-way re-import (JSONL → DB), never the reverse:
1. DESCRIBE events via PRAGMA table_info (schema read dynamically — adapts to whichever events DDL the installed binary created, incl. the exact one extracted from the binary: id, timestamp, level, project_name, message, detail, created_at).
2. Read all events.jsonl rows; compute DB id set.
3. INSERT rows whose id is missing, with detail json-encoded (unknown keys folded into detail), then re-probe → MATCH.
[probe] rows : DB=252 JSONL=254 -> DIVERGENCE (before, --dry-run)
[sync] inserted 2 event row(s) into events (detail json-encoded)
[probe] rows : DB=254 JSONL=254 -> MATCH (after, exit 0)
Plus: inserted rows byte-match canonical JSONL ({"action":"idle","worker":"dry-run",...}), idempotent second run → MATCH/exit 0, PRAGMA integrity_check → ok. The manual one-shot SQLite alternative included in the doc was also tested (inserted 2, rows: 254).
Run on the real system: python3 /tmp/imhotep_t224_sync_events.py --db <board.db> --jsonl <events.jsonl> (defaults to $HOME/.hermes/coding-hermes/... per the systemd unit).
# Evidence - Problem class: board-parity-jsonl-db-divergence - Model: openrouter/deepseek/deepseek-v4-flash-0731 - Solved: 2026-08-30T23:26:50.085Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "Scheduler dry-run tick events (action=idle, worker=dry-run) are appended to events.jsonl by the scheduler appender WITHOUT writing board.db -> parity probe DIVERGENCE (JSONL 254 vs DB 252). JSONL is canonical so no data loss; heal by re-importing missing event rows into board.db (DESCRIBE events, insert rows where id not in DB, detail json-encoded), then re-probe -> MATCH. Script pattern in /tmp/imhotep_t224_sync_events.py.", "environment": "", "language": "", "model": "openrouter/deepseek/deepseek-v4-flash-0731", "problem_class": "board-parity-jsonl-db-divergence", "provider": "openrouter", "solved_at": "2026-08-30T23:26:50.085Z", "version": ""}Done. Solution verified end-to-end.
Deliverable: ~/board-parity-jsonl-db-divergence.md — self-contained markdown with title, root-cause analysis, the exact fix, and a verification section.
Repair script: /tmp/imhotep_t224_sync_events.py (re-created; the referenced pattern file did not exist in this environment).
schedulerd (Go, SQLite via modernc.org/sqlite) appends every event to the canonical events.jsonl and mirrors it into the events table in board.db. The appender's DB-insert path is skipped for dry-run tick events (action=idle, worker=dry-run) — they land only in the JSONL, so the parity probe reports DIVERGENCE (JSONL 254 vs DB 252). JSONL is canonical, so it's a stale-DB problem, not data loss.
One-way re-import (JSONL → DB), never the reverse:
1. DESCRIBE events via PRAGMA table_info (schema read dynamically — adapts to whichever events DDL the installed binary created, incl. the exact one extracted from the binary: id, timestamp, level, project_name, message, detail, created_at).
2. Read all events.jsonl rows; compute DB id set.
3. INSERT rows whose id is missing, with detail json-encoded (unknown keys folded into detail), then re-probe → MATCH.
[probe] rows : DB=252 JSONL=254 -> DIVERGENCE (before, --dry-run)
[sync] inserted 2 event row(s) into events (detail json-encoded)
[probe] rows : DB=254 JSONL=254 -> MATCH (after, exit 0)
Plus: inserted rows byte-match canonical JSONL ({"action":"idle","worker":"dry-run",...}), idempotent second run → MATCH/exit 0, PRAGMA integrity_check → ok. The manual one-shot SQLite alternative included in the doc was also tested (inserted 2, rows: 254).
Run on the real system: python3 /tmp/imhotep_t224_sync_events.py --db <board.db> --jsonl <events.jsonl> (defaults to $HOME/.hermes/coding-hermes/... per the systemd unit).
# Evidence - Problem class: board-parity-jsonl-db-divergence - Model: openrouter/deepseek/deepseek-v4-flash-0731 - Solved: 2026-08-30T23:26:50.085Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "Scheduler dry-run tick events (action=idle, worker=dry-run) are appended to events.jsonl by the scheduler appender WITHOUT writing board.db -> parity probe DIVERGENCE (JSONL 254 vs DB 252). JSONL is canonical so no data loss; heal by re-importing missing event rows into board.db (DESCRIBE events, insert rows where id not in DB, detail json-encoded), then re-probe -> MATCH. Script pattern in /tmp/imhotep_t224_sync_events.py.", "environment": "", "language": "", "model": "openrouter/deepseek/deepseek-v4-flash-0731", "problem_class": "board-parity-jsonl-db-divergence", "provider": "openrouter", "solved_at": "2026-08-30T23:26:50.085Z", "version": ""}