new-feature

name	new-feature
description	Plan a feature implementation with tasks, architecture, and file list.
argument-hint	[feature-name]
user-invocable	true
allowed-tools	Read, Glob, Grep

When this skill is invoked:

1. Parse the feature name from the user's message. If the user wrote /new-feature InventorySystem, the name is InventorySystem. If no name was provided, ask for one.

2. Ask for the following inputs before generating anything:

   • User story: "Describe the feature as a user story: 'As a player, I want to ... so that ...'"
   • Acceptance criteria: "What defines 'done'? List the conditions that must be true for this feature to be complete."
   • Scope: "What's the scope? (small = 1-2 files, medium = 3-6 files, large = 7+ files or cross-cutting)"

   Wait for the user to answer all three before proceeding.

3. Scan the existing codebase to understand the current architecture:

   • Use Glob to find related scripts, prefabs, and ScriptableObjects
   • Use Grep to find references to related systems
   • Read relevant existing files to understand current patterns

4. Read knowledge base docs relevant to the feature domain:

   • Always read ${CLAUDE_PLUGIN_ROOT}/knowledge/01-unity-project-architecture.md for project structure
   • Read additional KB docs based on feature type (e.g., doc 07 for gameplay, doc 08 for UI, doc 02 for data-driven systems)

5. Generate the implementation plan with this structure:

   ## Feature Plan: [Feature Name]
   
   ### User Story
   [The user story from step 2]
   
   ### Acceptance Criteria
   [Numbered list from step 2]
   
   ### Architecture
   - **Pattern(s)**: [Which design patterns to use, from KB doc 03]
   - **Systems involved**: [New and existing systems]
   - **Data model**: [ScriptableObjects, serialized classes, or runtime data]
   - **Communication**: [Events, direct references, or message bus]
   
   ### Tasks
   [Ordered list of implementation tasks, each with]:
   - [ ] Task description
     - Files: `path/to/file.cs` (create / modify)
     - Depends on: [previous task number, if any]
   
   ### Files to Create
   | File | Purpose |
   |------|---------|
   | `path/to/NewFile.cs` | Description |
   
   ### Files to Modify
   | File | Change |
   |------|--------|
   | `path/to/ExistingFile.cs` | What to change |
   
   ### Complexity Estimate
   - **Scope**: [small / medium / large]
   - **Risk areas**: [What could go wrong]
   - **Suggested approach**: [Bottom-up, top-down, or spike-first]
   
   ### KB References
   - [List relevant KB docs with brief reason for each]
   

6. Present the plan and ask if the user wants to proceed with implementation, adjust the plan, or save it as a design document.