Add env snapshot capture for session debugging#448
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Every session now captures a redacted environment variable snapshot at startup using the debug-env tool (reuses existing redaction logic). The snapshot is stored in the session record and displayed in the UI under a new "Environment" tab on the session detail page. This enables debugging env var issues (like missing GH_HOST, wrong proxy settings, or credential conflicts) by showing exactly what was set when the session ran. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Every session now captures a redacted environment variable snapshot at startup. Reuses the
debug-envbinary (already baked into Skiff) for env classification, redaction, and formatting — single source of truth.Changes
/usr/local/bin/debug-envat startup, sends output to Ledgerenv_snapshot TEXTcolumn on sessions table (migration 032)POST /api/v1/sessions/{id}/env-snapshotingestion endpoint (auth bypass for session token, same as transcript/status)env_snapshotfield[REDACTED]in red,[DUMMY]in yellowTest evidence
Verified in local dev environment: dispatched session, env snapshot captured (2285 chars), visible in API response with all env vars properly categorized and redacted.
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