Design Implementation

Use this skill when shaping solutions that span multiple files or modules.

Shared conventions

• Follow AGENTS.md for coding style, TypeScript/lint rules, and testing conventions.
• Keep this skill focused on design and implementation tradeoffs.

Principles

• Follow AGENTS.md for design-first, SOLID/DRY, and minimal-change guidance.
• Design before implementation: confirm architecture choices before editing files.
• Prefer small, focused changes over broad refactors.
• Align with existing patterns and TypeScript strictness.

Design checklist

1. Identify the smallest change that meets requirements.
2. Keep responsibilities narrow and testable.
3. Avoid cross-module coupling unless required.
4. Prefer explicit types over inference for exported APIs.
5. Update user-facing docs when behavior changes.

Implementation checklist

1. Read the target files and match their style.
2. Avoid introducing new dependencies unless necessary.
3. Handle errors explicitly and surface user-visible errors via VS Code UI.
4. Add or update tests when behavior changes.
5. Keep code and docs synchronized.

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