implement
Implement from Spec (with GitHub Spec Kit)
Step 6 of 6 in the Reverse Engineering to Spec-Driven Development process.
Estimated Time: Hours to days (depends on gaps)
Prerequisites: Step 5 completed (all specs finalized, no [NEEDS CLARIFICATION] markers)
Output: Fully implemented application with all specs marked ✅ COMPLETE
When to Use This Skill
Use this skill when:
- You've completed Step 5 (Complete Specification)
- All specifications in
specs/are finalized - Implementation plans exist in
specs/ - Ready to use
/speckit.implementto build features
Trigger Phrases:
More from jschulte/stackshift
analyze
Perform initial analysis of a codebase - detect tech stack, directory structure, and completeness. This is Step 1 of the 6-step reverse engineering process that transforms incomplete applications into spec-driven codebases. Automatically detects programming languages, frameworks, architecture patterns, and generates comprehensive analysis-report.md. Use when starting reverse engineering on any codebase.
7cruise-control
Automatic mode - shift through all 6 gears sequentially without stopping. Like cruise control or automatic transmission, this runs the entire StackShift workflow from analysis to implementation in one go. Perfect for unattended execution or when you want to let StackShift handle everything automatically.
6spec-coverage-map
Generate a visual spec-to-code coverage map showing which code files are covered by which specifications. Creates ASCII diagrams, reverse indexes, and coverage statistics. Use after implementation or during cleanup to validate spec coverage.
6discover
Ecosystem discovery from a single starting repo. Scans for integration signals (npm packages, docker compose, env vars, API calls, CI/CD triggers, workspace configs, message queues, infrastructure refs), searches GitHub for related repos, scans the local filesystem, then presents an ecosystem map with confidence scoring and a Mermaid dependency graph. Hands off confirmed repos to /stackshift.batch or /stackshift.reimagine.
5complete-spec
Interactive conversation to resolve [NEEDS CLARIFICATION] markers using /speckit.clarify command. Claude asks questions about missing features, UX/UI details, behavior, and priorities. Updates specs in .specify/memory/ with answers to create complete, unambiguous documentation. This is Step 5 of 6 in the reverse engineering process.
5modernize
Brownfield Upgrade - Upgrade all dependencies and modernize the application while maintaining spec-driven control. Runs after Gear 6 for brownfield projects with modernize flag enabled. Updates deps, fixes breaking changes, improves test coverage, updates specs to match changes.
5