What problem does it solve? Editing shared YAML manifests and hook registrations is error-prone: reordered keys can change precedence, concurrent writes can corrupt files, and a single syntax error fails silently for downstream consumers. This Skill injects guardrails whenever a task touches YAML configuration. ## Core Features & Use Cases - Structure Preservation: Keeps existing key order and grouping intact when editing shared manifests, since ordering often encodes precedence. - Concurrency Safety: Prevents bare read-edit-write cycles on files modified by multiple processes, requiring locks or atomic write-then-rename instead. - Validation & Schema Matching: Ensures YAML parses correctly and matches the exact schema the consuming code expects before the task is considered done. - Use Case: When adding a new hook registration to a CI manifest, the Skill ensures the addition is additive to existing hook chains, commented where non-obvious, and validated against the consumer's parser. ## Quick Start Add a new pre-commit hook entry to the existing hooks.yaml manifest without disturbing the current hook order, then validate the file parses.
