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cb6a67c2d7
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. |
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