By name: planning-features description: > Provides structured plan template for feature implementation. Use when planning new features, multi-file changes, or creating implementation roadmaps before coding.
Feature Planning
Tip: For read-only planning mode, press Shift+Tab in VS Code or Copilot CLI to enter built-in plan mode.
Research-First Workflow
- Understand the request — clarify scope and success criteria
- Search the codebase for existing patterns and relevant files
- Load relevant skills from
.github/skills/for project conventions - Generate a structured plan using the template below
Research Guidelines
- Search existing patterns before proposing new ones — reuse what the codebase already does
- Read relevant skills (e.g.,
writing-csharp-code,writing-typescript-code,writing-bicep-templates) to follow project conventions - Check current implementations in files you plan to modify so the plan reflects actual code structure
Required Plan Structure
Every plan must include these sections:
1. Overview
2-3 sentence description of the feature or change.
2. Requirements
- [ ] Requirement one
- [ ] Requirement two
3. Files to Modify
| File Path | Changes |
|---|---|
path/to/file |
Description of modifications |
4. Files to Create
| File Path | Purpose |
|---|---|
path/to/new/file |
What this file does |
5. Implementation Steps
Numbered steps with sub-steps. Reference skill patterns where applicable.
1. Step one
- Sub-step referencing `writing-csharp-code` skill patterns
- Sub-step with specific code location
2. Step two
- Sub-step referencing `writing-typescript-code` skill patterns
6. Testing Checklist
- [ ] Manual verification step one
- [ ] Manual verification step two
7. Edge Cases
Document each edge case and how the implementation should handle it.
8. Documentation Updates
If the plan affects state machines, SSE events, or API endpoints, include updates to ARCHITECTURE-FLOW.md. Load the understanding-architecture skill for validation rules.