skeeper: Skill for Claude Code

Architectural Analysis

Instructions

Perform comprehensive architectural audit focused on structural issues, dead code, duplication, and systemic problems.

Phase 1: Discovery & Planning

Step 1: Map Codebase Structure

# Get directory structure
find . -type d -not -path "*/node_modules/*" -not -path "*/.git/*"

# Count files by type
find . -name "*.ts" -o -name "*.tsx" -o -name "*.js" -o -name "*.jsx" | wc -l

Step 2: Identify Entry Points

• Main application entry (index.ts, main.ts, app.ts)
• API routes/controllers
• Public exports (index.ts files)
• CLI entry points
• Test files

Step 3: Create Comprehensive File List

Use Glob to find all source files. Create todo list with one item per file to analyze.

Phase 2: Dead Code Detection

For EACH file in the todo list:

Step 1: Identify Exports

• What does this file export?
• Are exports functions, classes, types, constants?
• Is anything exported at all?

Step 2: Search for Usage

For each export, search if it's imported/used anywhere:

# Search for imports of this export
grep -r "import.*ExportName" . --include="*.ts" --include="*.tsx"
grep -r "from.*filename" . --include="*.ts" --include="*.tsx"

# Search for direct usage
grep -r "ExportName" . --include="*.ts" --include="*.tsx"

Step 3: Categorize Code

Dead Code (mark for removal):

• Exported but never imported
• Functions defined but never called
• Classes instantiated nowhere
• Types defined but never used
• Constants defined but never referenced
• Entire files with no imports from other files

Possibly Dead (needs verification):

• Only used in commented-out code
• Only used in dead code
• Only used in other unused exports
• Used only in tests for deprecated features

Internal Dead Code:

• Functions defined in file but never called (not exported)
• Variables assigned but never read
• Parameters accepted but never used

Step 4: Check for False Positives

Not dead if:

• Used in tests (may be public API)
• Dynamically imported/required
• Used via reflection/string references
• Part of public API (even if not used internally)
• Framework hooks (lifecycle methods, callbacks)
• Accessed via window or global scope