codebase-overview
Codebase Overview Skill
Systematic 4-phase codebase exploration that produces an evidence-backed onboarding report. Phases run in strict order — DETECT, EXPLORE, MAP, SUMMARIZE — because later phases depend on context established by earlier ones. This skill accelerates reading the codebase but does not replace it.
Reference Loading Table
| Signal | Load These Files | Why |
|---|---|---|
| example-driven tasks, errors | examples-and-errors.md |
Loads detailed guidance from examples-and-errors.md. |
| tasks related to this reference | exploration-strategies.md |
Loads detailed guidance from exploration-strategies.md. |
| tasks related to this reference | report-template.md |
Loads detailed guidance from report-template.md. |
Instructions
Execute all phases autonomously. Verify each gate before advancing. Consult references/exploration-strategies.md for language-specific discovery commands.
Before starting any exploration, read and follow any .claude/CLAUDE.md or CLAUDE.md in the repository root because project-specific instructions override default behavior.
This is a read-only skill — keep all project files unmodified because the goal is observation, not mutation. Likewise, leave application execution and test running to other skills because those are execution concerns outside this skill's scope. For deep domain analysis, route to a specialized agent instead.
More from notque/claude-code-toolkit
generate-claudemd
Generate project-specific CLAUDE.md from repo analysis.
12fish-shell-config
Fish shell configuration and PATH management.
12pptx-generator
PPTX presentation generation with visual QA: slides, pitch decks.
12image-to-video
FFmpeg-based video creation from image and audio.
9data-analysis
Decision-first data analysis with statistical rigor gates.
9skill-eval
Evaluate skills: trigger testing, A/B benchmarks, structure validation.
9