* Extract session pipeline framework, refactor verification, add UsageProcessor skeleton
Pluggable framework under services/session_pipeline/ (contract + lib + per-processor
runner) so multiple processors can read /data/user_sessions/<key>/*.jsonl on their
own cadence with full failure isolation. Verification flow becomes the first plugin;
a no-op UsageProcessor reserves the second slot pending a separate brainstorm on
extraction logic + storage shape.
Schema v28→v29: rename session_extraction_state → session_processor_state with
composite PK (processor_name, session_file). Existing rows copied over with
processor_name='verification'; legacy table dropped. Migration is idempotent and
no-ops the copy step on fresh installs that came up at the new schema.
Endpoint: /api/admin/run-verification-detector replaced by parametrized
/api/admin/run-session-processor?processor=<name>. Audit action format follows.
Scheduler JOBS: verification-detector entry split into session-processor:verification
+ session-processor:usage. SCHEDULER_VERIFICATION_DETECTOR_INTERVAL retained for
operator compatibility (drives both cadence and health-check grace window);
SCHEDULER_USAGE_PROCESSOR_INTERVAL added.
* Address PR #232 review: scan dead branch + per-processor lock
- `SessionProcessorStateRepository.scan_unprocessed_for` dead else: both
branches surfaced every jsonl, the SELECT was unused, runner MD5-rehashed
every stable session per tick. Replaced with an mtime precheck — stable
sessions (mtime <= processed_at) are filtered at scan; modified files
still surface for the runner's authoritative `file_hash` invalidation.
Naive-local comparison matches the existing health-check idiom (DuckDB
TIMESTAMP strips tz on storage).
- Per-processor advisory lock around `_run_processor` in
`/api/admin/run-session-processor`. Scheduler tick + manual admin POST
could otherwise both run, both call create_evidence on overlapping
detections, and accumulate duplicate verification_evidence rows (the
dedup short-circuit only covers create+contradiction, not evidence per
ADR Decision 3). Non-blocking acquire → 409 Conflict on concurrent
invocation; release in finally so a runner exception doesn't wedge the
processor.
Tests: two new scan unit tests (mtime filter + post-mark mtime bump), 409
endpoint test, lock-released-on-exception test. Two existing tests updated
for the new "filtered at scan" stat shape (previously asserted skipped == 1,
now scanned == 0).
* Address PR #232 review #2: parallel scheduler tick + last_run on terminal state
Two pre-existing scaffold bugs in services/scheduler/__main__.py amplified
by adding more session-pipeline jobs:
1. Serial for-loop over jobs with synchronous httpx.post(timeout=900) — a
10-minute verification run blocked every other job (data-refresh,
health-check, usage, corporate-memory) for the whole window. The PR's
stated isolation guarantee held inside the runner but broke at the
scheduler dispatch layer.
2. last_run advanced only when _call_api returned True. Permanent-failure
jobs hot-looped on every tick (30s) instead of cadence (15min).
Fix: ThreadPoolExecutor.submit per due job + per-job in_flight set so a
long-running job can't be re-launched on subsequent ticks. last_run
advances unconditionally in finally; errors still surface via _call_api
logging + audit_log on the receiving side.
_run_job extracted to module-level for unit testing. New tests:
- TestRunJobBookkeeping: advances on success / failure / unhandled raise
- TestRunLoopParallelism: in_flight protection prevents duplicate
launches across ticks for a single slow job
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Co-authored-by: Minas Arustamyan <arustamyan.minas@gmail.com>
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