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Explore a codebase and produce a detailed implementation plan before writing any code. Use when asked to plan a feature, think through an approach, or figure out how to implement something.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Review code changes for bugs, security vulnerabilities, performance issues, and maintainability. Use when asked to review code, a PR, a diff, or recent changes.
Systematically diagnose and fix bugs, unexpected behavior, or failing tests. Use when something is broken and the cause is not immediately obvious.
Safely restructure code to improve clarity, reduce duplication, or simplify design without changing observable behavior. Use when asked to clean up, simplify, or restructure code.
Write a technical specification for a feature, API, or system component. Use when asked to spec out, design, or document a feature before it is built.
Write tests for existing code or new features. Use when asked to add tests, improve test coverage, or write tests for a specific function or module.
| name | plan |
| description | Explore a codebase and produce a detailed implementation plan before writing any code. Use when asked to plan a feature, think through an approach, or figure out how to implement something. |
Do not write code. Do not modify files. Explore and think.
Before exploring, make sure you understand what done looks like.
If the goal is ambiguous, use the questionnaire tool to ask.
Use grep, find, read, and ls to understand the relevant code.
Find:
Take notes as you go. You will use these in the plan.
Before writing steps, decide on the approach:
One sentence. What will be true when this is complete.
2-3 sentences explaining the strategy and why.
Numbered, ordered, atomic. Each step names the exact file and function to touch.
1. `src/types.ts` — Add `theme: 'light' | 'dark'` to the `UserPreferences` interface
2. `src/store/preferences.ts` — Update `savePreferences()` to persist the new field
3. `src/components/Settings.tsx` — Add a theme toggle that calls `savePreferences`
4. `src/components/App.tsx` — Read `preferences.theme` and apply a CSS class to the root element
path/to/file.ts — what changespath/to/new.ts — purpose (omit if none)Specific things to be careful about. Name callers that could break, shared types that must stay compatible, performance implications.
Anything that needs a decision before implementation can proceed.