X_BENCH_CLAIM_STALE
Means
a realtime capacity figure in CLAUDE.md is not the figure scripts/bench/results/*.json carries
Typical cause
the bench was re-run and the prose was not updated, or the prose was edited by hand. A duration renders as (ms / 1000).toFixed(1) seconds and a count comma-grouped every three digits; nothing else is accepted, and a reworded sentence reports as unstated rather than passing silently
Fix
bun run scripts/bench-claims.ts --json — the fix carries the exact string to write into CLAUDE.md