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fix(control-pane): reject failed views and coalesce projection sampling

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Affaan Mustafa
2026-09-12 03:11:12 -04:00
parent ff03da1dc8
commit 5c2fbce26e
6 changed files with 122 additions and 9 deletions
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docs/control-plane/VIEW-CONTRACT.md
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@@ -21,7 +21,7 @@ Served by `node scripts/control-pane.js` (loopback only, same Host and Origin ga
| `GET /api/control-plane` | The full view document below. |
| `GET /api/control-plane/events` | `{ schemaVersion, generatedAt, thresholds, events, counts }` only, for hooks and pollers. |
The server keeps one projection window per process, so z-scores roll across polls. Options on `createControlPaneServer`: `projection` (`windowSize`, `clipPercentiles`, `minWindowForZscore`), `viewOptions` (`thresholds`, `manifest`, `channelWeights`), `proximityOptions` (passed to the scan).
The server keeps one projection window per process. Both API routes share a snapshot cached for five seconds, and concurrent refresh requests are coalesced. Reads within that interval do not add samples. After expiry, the next read refreshes the snapshot once; idle intervals do not generate synthetic samples. Failed refreshes return errors rather than healthy empty data. The page rejects failed HTTP responses and invalid view envelopes and shows `offline`. Options on `createControlPaneServer`: `projection` (`windowSize`, `clipPercentiles`), `viewOptions` (`thresholds`, `manifest`, `channelWeights`, `minWindowForZscore`), `proximityOptions` (passed to the scan).
## Document