What problem does it solve? Handoff briefs passed between agent sessions often get executed without the receiving agent actually reading the required sources, leading to stale assumptions, re-done work, and unverifiable results. This Skill enforces source-ingestion gates, premise pre-flight checks, and ground-truth retros so a brief becomes auditable work. ## Core Features & Use Cases - Gated source ingestion: Reads every @SOURCES.required entry fully before planning, with ABORT/WARN gates, drift warnings, and did-you-mean hints for missing files. - Premise pre-flight: Reconciles the brief against live git state, cited baselines, and structural claims to detect already-shipped work or drifted assumptions before planning. - Verified execution and retro: Runs the brief's verify commands plus the project gate suite, maps each acceptance clause to a verification result, and writes a structured retro with @GROUND_TRUTH, @GATE_STATUS, and @VERDICT blocks. - Use Case: A session runs /handoff to write a brief for a bug fix; a fresh agent session invokes /handoff-execute <brief-path> and gets a source-cited plan, verified execution, and a canonical retro file. ## Quick Start Run /handoff-execute with the quoted absolute path to a handoff brief produced by /handoff, and the agent will load its required sources, plan with citations, execute, verify, and write the retro.
