AgentLens Codebase Navigation is a development Claude Skill built by David. Best for: Developers working with unfamiliar or large codebases use this skill to quickly locate code sections, understand module relationships, and identify potential issues before modification..
- What it does
- Navigate large codebases efficiently using hierarchical documentation structure to find modules, symbols, dependencies, and warnings.
- Category
- development
- Created by
- David
- Last updated
AgentLens Codebase Navigation
Navigate large codebases efficiently using hierarchical documentation structure to find modules, symbols, dependencies, and warnings.
Skill instructions
name: agentlens description: "Navigate and understand codebases using agentlens hierarchical documentation. Use when exploring new projects, finding modules, locating symbols in large files, finding TODOs/warnings, or understanding code structure."
AgentLens - Codebase Navigation
Before Working on Any Codebase
Always start by reading .agentlens/INDEX.md for the project map.
Navigation Hierarchy
| Level | File | Purpose |
|-------|------|---------|
| L0 | INDEX.md | Project overview, all modules listed |
| L1 | modules/{slug}/MODULE.md | Module details, file list |
| L1 | modules/{slug}/outline.md | Symbols in large files |
| L1 | modules/{slug}/memory.md | TODOs, warnings, business rules |
| L1 | modules/{slug}/imports.md | File dependencies |
| L2 | files/{slug}.md | Deep docs for complex files |
Navigation Flow
INDEX.md → Find module → MODULE.md → outline.md/memory.md → Source file
When To Read What
| You Need | Read This |
|----------|-----------|
| Project overview | .agentlens/INDEX.md |
| Find a module | INDEX.md, search module name |
| Understand a module | modules/{slug}/MODULE.md |
| Find function/class in large file | modules/{slug}/outline.md |
| Find TODOs, warnings, rules | modules/{slug}/memory.md |
| Understand file dependencies | modules/{slug}/imports.md |
Best Practices
- Don't read source files directly for large codebases - use outline.md first
- Check memory.md before modifying code to see warnings and TODOs
- Use outline.md to locate symbols, then read only the needed source sections
- Regenerate docs with
agentlenscommand if they seem stale
For detailed navigation patterns, see references/navigation.md For structure explanation, see references/structure.md
Install
/plugin install agentlens-codebase-navigation@dvcrnRequires Claude Code CLI.
Use cases
Developers working with unfamiliar or large codebases use this skill to quickly locate code sections, understand module relationships, and identify potential issues before modification.
Reviews
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