forked from molecule-ai/molecule-core
26b5b21238
User report 2026-05-04: 8+ workspace tenant (Design Director + 6 sub-agents + 3 standalones) saw sustained 429s in canvas console hitting /workspaces/<id>/activity?limit=5. Server-side rate limit is 600 req/min/IP. Three compounding issues in CommunicationOverlay: 1. Polled regardless of visibility — collapsed panel still hammered the API 2. 10s cadence — 6 req every 10s = 36 req/min from this overlay alone 3. Fan-out cap of 6 workspaces — scaled linearly with workspace count Fix: - Gate setInterval on `visible` (effect re-runs when collapsed/expanded) - Cadence 10s → 30s - Fan-out cap 6 → 3 Combined: ~36 req/min worst case → 6 req/min worst case (6x reduction), 0 req/min when collapsed. Tests: - Fan-out cap: 6 online nodes mounted → exactly 3 fetches (was 6) - Offline gate: offline workspace never polled - Cadence: timer at 10s = no new fetch; timer at 30s = next batch fires Each test would fail if the corresponding dial regressed. Follow-up (out of scope): structurally right fix is to consume the WORKSPACE_ACTIVITY WS broadcast instead of polling per-workspace. Server already publishes the events; canvas just isn't subscribing yet. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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