What problem does it solve? Running several skills in sequence by hand is inconsistent and leaves no verifiable record. This Skill turns a YAML-defined sequence of skill invocations into a reproducible, audited workflow with input validation, conditional steps, gates, and a JSONL audit trail. ## Core Features & Use Cases - YAML Chain Execution: Parse a chain definition and run each step in order, dispatching to named skills or to the active primary's own reasoning. - Validation, Gates, and Retries: Validate each step's output against a declared schema, retry on malformed output, and enforce filesystem, semantic, and tool gates with per-gate failure policies. - Audit Logging and Isolation: Write an append-only JSONL audit log per run, support per-step git worktree isolation, and route cross-check steps through family-aware verifier-independence rules. - Use Case: A team runs a release-validation workflow repeatedly. They define it once as a chain YAML, then say "run the release-validation chain" to get consistent execution, gate enforcement, and a locatable audit log every time. ## Quick Start Run the validate-release chain defined in the project's chains directory on the current change set.