Grudge — the Book of Grudges (#271)

Named for the dwarven Dammaz Kron: every wrong is written down and never forgotten until it is settled. A fixed bug becomes a grudge the toolchain holds against the files that caused it — and refuses to let happen again.

Stock Claude Code has no memory across sessions, so the same class of bug re-ships. The grudgebook closes the loop: write-on-resolution + read-on-preflight.

Where grudges live (read this first)

The grudgebook is machine-local and per-repo, NEVER inside a git tree:

$CRUCIBLE_GRUDGE_DIR  (or ~/.claude/crucible/grudge)
  /<repo>/grudges/<hash>.md