What problem does it solve? When building a multi-crate Rust workspace, the biggest risks are stubbed implementations (todo!/unimplemented!/placeholder returns) that compile but do nothing, and warnings that get silenced to force a green build. This skill enforces a per-crate gate so every crate is genuinely complete before the next one starts. ## Core Features & Use Cases - Sequential crate building: Builds blueprint crates one at a time in topological order, each as a sealed function primitive with frozen inputs and outputs. - Anti-stub gate: Deterministically fails any crate containing todo!(), unimplemented!(), placeholder returns, or commented-out bodies. - Warnings-as-errors policy: Runs cargo check under -Dwarnings, with a single scoped exception for dead_code/unused marked with a tracked // COUPLE: comment recorded as ledger debt. - Use Case: During step 3 of the Ordo pipeline, build each subsystem crate against its frozen ledger contracts, verify it compiles clean and passes its unit check, then record status and COUPLE markers before the planner releases the coupling phase. ## Quick Start Ask the AI to build the next Ordo blueprint crate in topo order, enforcing the anti-stub gate and -Dwarnings policy, and to record any COUPLE markers in the ledger.
