Add size caps to debug prompt logger hook#1902
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Per-field truncation (2000 chars for text/tool content, 1000 for base64 image/file data) bounds individual message output. System prompt is capped at 5000 chars. The jq-less fallback path is capped at 200KB total. All messages are still shown — only oversized fields are truncated. Addresses review feedback on PR #1861. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Addressed in #1907 |
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Summary
Addresses codex review feedback on #1861:
runHookScriptbuffers all hook stderr in memory andpre-llm-callhooks are awaited, so unbounded output from large conversations could cause large allocations and pre-call delays.Test plan
VELLUM_DEBUG=1in a long conversation and verify output is bounded…[truncated]markerGenerated with Claude Code