implement-cohesively

What problem does it solve?

This Skill eliminates the risk of implementation drifting from approved spec rewrites, ensuring all code, tests, and CI changes fully align with the locked design, cover every spec promise, and avoid unapproved divergent changes.

Core Features & Use Cases

• Dual-mode workflow: Supports standard mode for post-validate-rewrite Approved runs and extend mode for post-rewrite-specs extension runs, adapting input requirements and reviewer dispatch to each context.
• Substrate-anchored execution: Composes with Superpowers for TDD-disciplined plan writing and execution, so all implementation work is tied directly to the spec diff.
• Mandatory end-of-run validation: Dispatches mode-appropriate reviewers (dual delta-coverage and substrate review for standard mode, cross-mirror review for extend mode) to verify implementation matches the design.
• Use case: Use after a spec rewrite is approved to land implementation that exactly matches the new design, or to extend an existing concept with new changes while ensuring all related code sites are updated.

Quick Start

Use the implement-cohesively skill to drive implementation of the approved user authentication rewrite on the design/auth-rewrite branch, with automatic validation and cleanup of temporary scaffolding.