Tom Boucher 1a5259ce16 fix: add temp file reaper to prevent unbounded /tmp accumulation ...

core.cjs output() created gsd-*.json files in /tmp for large payloads
but never cleaned them up, causing unbounded disk usage (800+ GB
reported in #1251). Similarly, profile-pipeline.cjs created
gsd-pipeline-* and gsd-profile-* temp directories without cleanup.

Adds reapStaleTempFiles() that removes gsd-prefixed temp files/dirs
older than 5 minutes. Called opportunistically before each new temp
file/dir creation. Non-critical — cleanup failures never break output.

Closes #1251

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-20 15:46:06 -04:00

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