- Migration t7o8p9q0r1s2: indexes on tasks.status, tasks(workstream_id,status),
workstreams.status, sbom_snapshots(repo_id,snapshot_at)
- workplan-index: 30 s TTL cache + ?refresh param (4171 ms → 16 ms on hit)
- /state/summary: 15 s TTL cache, bypassed on Cache-Control: no-cache
- /topics/: noload(workstreams, decisions, progress_events) (2382 ms → 115 ms)
- /domains/: noload(topics, repos, goals) (2252 ms → 39 ms)
- /repos/: noload(goals) (2222 ms → 599 ms first / fast on repeat)
- conftest: reset TTL caches between tests to prevent bleed-through
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Workplan for delegating maintenance automation from the state hub to
activity-core via NATS JetStream. Covers NATS publisher wiring, subject
schema, lifecycle event emission, cron migration stubs, and delegation
protocol docs.
Hub workstream: d8ac100b-a844-46a5-9684-415df0d32539
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
T4: workstreams.md and dependencies.md now call /state/deps instead of the
full /state/summary — removes 2 heavy 10-table queries per 60 s cycle.
T5: index.md's 4 independent polling loops (summaryState, sbomSnapState,
regsState, wsChartState) consolidated into a single pageState generator
with one Promise.all batch and a shared backoff counter.
T6: config.js gains waitForVisible(ms) — pauses polling entirely while the
tab is hidden and fires immediately on visibilitychange. pollDelay()
simplified (hidden-tab POLL_HIDDEN logic removed). All 16 polling pages
migrated from await sleep(pollDelay(...)) to await waitForVisible(pollDelay(...)).
CUST-WP-0039 complete — all 6 tasks done.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
T1: Cache-Control max-age=60 on /topics/, /repos/, /domains/ list endpoints
so repeated dashboard polls within a minute are served from browser cache.
T2: ETag middleware (md5 hash) on all JSON GET responses with conditional-GET
(304 Not Modified) support; If-None-Match and ETag added to CORS headers.
ETag registered inside CORS so 304s automatically carry CORS headers.
T3: GET /state/deps — lightweight dep-graph endpoint returning open workstreams
with depends_on/blocks edges only, skipping the 10-table full-summary query.
Prerequisite for T4 (switching workstreams.md and dependencies.md off /state/summary).
Workplan: CUST-WP-0039-dashboard-poll-optimization.md
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Watching .venv/ (6k files) and dashboard/node_modules/ (6k files) was
causing sustained ~42% CPU on the uvicorn main process.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
