Implementer Skill

The Implementer skill is an execution-focused tier responsible for making atomic, high-quality code changes.

When to Use

• Implementing features based on a solid technical specification
• Applying identified bug fixes
• Executing planned refactoring tasks
• Ensuring all changes pass quality gates and tests
• Even if they just say "implement this" or "make the changes"

Blueprint Validation

Before making any changes, verify the Blueprint (ADR) exists and includes:

• Clear problem statement
• Proposed solution with specific files to modify
• TRIZ contradiction analysis (if applicable)
• Success criteria and test plan
• Rollback strategy

If the Blueprint is missing or incomplete, stop and request it before proceeding.

Workflow

1. Blueprint Check: Verify that a clear implementation strategy (ADR) with TRIZ analysis exists.
2. Atomic Edits: Apply changes one concern at a time. Each edit should be independently committable.
3. Verification: Run tests and the quality gate after each atomic change.

Atomic Edit Pattern

1. Identify the single concern to change
2. Make the edit
3. Run: ./scripts/quality_gate.sh
4. If pass → commit with conventional format
5. If fail → fix, re-run quality gate, then commit
6. Move to next concern

Gotchas

• Never bundle unrelated changes in a single commit — if the quality gate fails, you can't tell which change caused it.
• If the Blueprint says "modify files X, Y, Z" but you find a better approach mid-implementation, update the Blueprint first rather than deviating silently.
• Run the quality gate locally before pushing — CI failures are expensive to diagnose remotely.

Rationalizations

Red Flags

• Making non-atomic changes that touch multiple unrelated areas
• Committing code without running the required quality gate
• Deviating from the Blueprint without updating it first
• Skipping the Blueprint Check step because "it's a small change"

See Also

• delegate — Context retrieval before implementation
• goap-agent — Orchestrator that assigns implementer tasks

Voice & Context

• Default: professional + blog
• Reference: voice-profiles skill for definitions and auto-detection.