The autocompact buffer percentage was hardcoded to 16.5%. Users who set
CLAUDE_CODE_AUTO_COMPACT_WINDOW to a custom token count (e.g. 400000 on
a 1M-context model) saw a miscalibrated context meter and incorrect
warning thresholds in the context-monitor hook (which reads used_pct from
the bridge file the statusline writes).
Now reads CLAUDE_CODE_AUTO_COMPACT_WINDOW from the hook env and computes:
buffer_pct = acw_tokens / total_tokens * 100
Defaults to 16.5% when the var is absent or zero, preserving existing
behavior.
Also applies the renameDecimalPhases zero-padding fix for clean CI.
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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