'Mirrors the logic previously embedded in hive-ag3nt' is pure provenance
(where the code moved from) — the #2077 rubric says drop impl-history. The
rest of my slice (nix modules + hive-priv/matrix-mcp/bash-mcp + forge.rs) is
already lean: surveyed it, the long comment blocks are all legit why/invariant/
contract docs under the 30-line threshold, not bloat.