prd-quality-gatelisted

# PRD Quality Gate ## Contract Inputs: - Requirements, implementation plan, target repository, and requested mode. - Live issue body/comments and repository revision when execution is requested. Outputs: - `draft-lint`: warnings for incomplete requirements; never execution permission. - `execution-readiness`: `READY` or `BLOCKED`, evidence for each check, and exact gaps. Creates/Modifies: - No implementation or tracker mutations; return findings to the calling engine. External Side Effects: - Read-only repository and tracker inspection. Confirmation Required: - None for read-only validation. Preserve the caller's access restrictions. ## One Shared Contract Read [Execution readiness](references/execution-readiness.md) before validating or supplying preparation templates. This reference owns the requirements template, plan template, decomposition rule, decision boundary, and readiness checklist. Resolve this skill through the active catalog; consumers load the reference relative to this skill's installed directory. Do not maintain alternate copies. Use `draft-lint` for an explicit requirements-only review. Check required headings, nonempty scope and EARS acceptance criteria; report missing information as warnings. Draft lint may help the planner continue research. It cannot mark an issue ready for an executor, even if every heading is present. Use blocking `execution-readiness` for `/prd prepare`, feature intake, execution handoff, AFK classification, or any requ