ktx/docs-site/content/docs/community
Andrey Avtomonov cb6a67c2d7 Make telemetry reliable across interrupts and headless installs
Three reliability gaps surfaced while auditing why PostHog numbers were
untrustworthy:

1. Interrupted commands lost their events. capture() is fire-and-forget and the
   only flush guarantee lived in a finally block, which SIGINT/SIGTERM skip — so
   Ctrl-C'ing a long ingest or an MCP client killing 'ktx mcp stdio' dropped the
   command event and any queued events. Add SIGINT/SIGTERM handlers (real-process
   entry only; never under test/programmatic io) that mark the active command
   span aborted, emit it, drain the emitter, then exit. Idempotent with the
   normal finally path via the single-consume command span.

2. Headless-first installs were invisible. loadTelemetryIdentity refused to mint
   an installId unless stdout was a TTY, so a machine whose first run was an
   IDE-launched MCP server or a script emitted nothing, ever. Mint on first run
   regardless of surface (still honoring CI/DO_NOT_TRACK/KTX_TELEMETRY_DISABLED),
   writing the one-time notice to stderr — safe under the MCP stdio protocol,
   which reserves stdout. Drop the now-unused stdoutIsTTY option.

3. No guard against silent emit regressions (the 0.7.0 scan_completed blackout).
   Add tests: the shared executePublicIngestTarget chokepoint emits exactly one
   ingest_completed on success and on the preflight-failure branch, and a
   database target invokes the scan that emits scan_completed; plus coverage for
   the aborted-flush helper.

Identity is unchanged otherwise: every event still attributes to the installId
in ~/.ktx/telemetry.json. No event/field changes, so Node<->Python schema parity
is untouched. Docs updated to reflect first-run-on-any-surface activation.
2026-06-02 23:19:37 +02:00
..
contributing.mdx chore(workspace): gate dead-code with knip production mode (#196) 2026-05-21 15:28:58 +02:00
meta.json feat(telemetry): anonymous posthog usage telemetry across node cli and python daemon (#205) 2026-05-22 18:18:47 +02:00
support.mdx chore: revert repo references to Kaelio/ktx and remove rename-resilience (#252) 2026-06-02 00:14:43 +02:00
telemetry.mdx Make telemetry reliable across interrupts and headless installs 2026-06-02 23:19:37 +02:00