implement-github-feature

**Usage:** `/implement-github-feature ISSUE_NUMBER` **Example:** `/implement-github-feature 281` Implement GitHub feature request $ARGUMENTS following AgnosticUI conventions, accessibility standards, and CSS-first principles. --- ## Setup 1. **Read project context** - Read `.claude/PROJECT_CONTEXT.md` - Understand: - Repository structure - Design principles - Accessibility requirements - Branch conventions - Component workflows --- ## Phase 0: Safety Checks (Required) 2. **Verify clean starting state** - Run `git status` - Confirm: - Working directory is clean - Current branch is `master` - If either condition fails: - **STOP** - Ask the user to resolve before continuing --- ## Phase 1: Branching 3. **Propose feature branch** - Follow convention: `issue-$ARGUMENTS/short-descriptive-name` - Example: `issue-281/selection-card-group` - Run: ``` git checkout -b issue-$ARGUMENTS/short-description ``` - **WAIT FOR USER APPROVAL of branch name before proceeding** --- ## Phase 2: Issue Analysis & Intent Extraction (No Code) 4. **Analyze the GitHub issue** - Fetch full details: ``` gh issue view $ARGUMENTS ``` - Extract and summarize: - Feature goals - Non-goals / constraints - API expectations - Accessibility requirements - Styling and theming expectations - Framework implications (Lit / React / Vue) 5. **Study existing related compo...