The `mechanics:` field ended with the same sentence twice — the enumeration of the
unreachable clauses was appended without removing the tail it replaced. Found by the
mutation-sweep agent while reading the record it was checking its own results against.
In its place, the number that makes the technique worth its cost: 60 mutants, 40 red, 20
survivors, on a tree that had already been through three per-finding review rounds by two
model families.
refs #849
Decisions-Edit: yes
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019T79beF1Ufid3dXju4yqkF
timothyandClaude Opus 5
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