What problem does it solve? Large documentation sets drift: the same fact gets restated in multiple files, values diverge, and stale mirrors survive the changes that invalidate them. This Skill provides the operational playbook for keeping a numbered canon of docs (docs/NN_NN_*.md) internally consistent by enforcing that every fact has exactly one canonical home and everything else references it. ## Core Features & Use Cases - Drift hunting and fixing: Follow the hunt → automate → fix loop to find facts restated inconsistently across docs and code, identify the canonical owner, and convert off-home restatements into references. - CI gate operations: Run and interpret the docs lint toolchain (docs:check_refs, docs:toc, tracker:check, docs_band.rb, model/component doc sync gates, wiki:sync) without mistaking a partial green for a full-lane verdict. - Guard authoring recipe: Turn any newly found drift class into a permanent low-false-positive linter, with mutation-verification pitfalls and a catalog of 150+ documented gate-blindness shapes in guard-craft.md. - Use Case: You edit a firmware constant documented in three places. Use this Skill to find the canonical home, update only that location, sweep stale mirrors, and add a linter so the drift can never silently return. ## Quick Start Ask the assistant to check whether a specific value is consistent across the docs and to run the docs lint gates to find any drift.
