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code-mapper

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Create, update, and review code-map and spec documents for features. Use this skill to document code execution flows, trace function calls, and maintain architectural documentation in docs/2-current/.

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/documents/code-mapper/SKILL.md

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Code Mapper

Create and maintain code-map and spec documents that accurately reflect the codebase.

Document Types

TypePatternPurpose
Code-mapdocs/2-current/map-*.mdTrace execution flows
Specdocs/2-current/spec-*.mdArchitecture, schemas, APIs

Analysis Process

  1. Identify starting point: API endpoint, function, command line
  2. Trace execution: Follow code from entry to completion
  3. Document control flow: Conditions, branches, exceptions
  4. Create sub-flows: Tree structure for complex paths
  5. Capture business logic: Input options, edge cases

Code-Map Structure

See references/codemap-guide.md for complete format.

# Feature Name
## Summary
## Major Flow Blocks
## Flow Diagram (Mermaid)
## Component Call Graph
## Starting Trace Block [[↑ Flow Diagram](#flow-diagram)]
## Sub-flow A [[↑ Flow Diagram](#flow-diagram)]
## Helper Functions [[↑ Flow Diagram](#flow-diagram)]
## Configuration and Environment [[↑ Flow Diagram](#flow-diagram)]
## Error Handling Summary [[↑ Flow Diagram](#flow-diagram)]
## Database Schema Integration [[↑ Flow Diagram](#flow-diagram)]
## Business Logic Summary [[↑ Flow Diagram](#flow-diagram)]
## Dependencies [[↑ Flow Diagram](#flow-diagram)]

Spec Documents

For non-execution information:

  • Database schemas
  • API endpoint definitions
  • Data types and models
  • Architecture diagrams
  • External component integration

Link spec documents from/to related code-map documents.

Key Requirements

  • Use relative file paths with line numbers: [file.py:123](../../path/file.py#L123)
  • Include [[↑ Flow Diagram](#flow-diagram)] on section headers
  • Document all inputs, outputs, and error cases
  • Link all function references to their sections
  • Keep Mermaid diagrams navigable with anchor links