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Codemap Explore

Systematic codebase exploration. Trigger this skill when you need to understand how a specific subsystem works, trace the downstream impact of a feature, find where a function is defined, or onboard to an entirely new area of the codebase.

shalomb 9ca65ce 1.4 KB Updated
Coding & Dev Tools

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Systematic Codebase Exploration

Start with the big picture

  1. codemap . — project tree, file counts, top extensions
  2. codemap --deps . — how packages and files connect
  3. Hub files (from HUBS: section) — understand these first, they define shared types/interfaces

Trace a feature

  1. Find the entry point (CLI command, API route, event handler)
  2. codemap --importers <entry-file> — what calls this?
  3. codemap --deps . — follow the import chain downstream
  4. Read hub files in the chain first

Find what you're looking for

Question Command
Where is X defined? codemap --deps . → scan the output
Who uses X? codemap --importers <file>
What's the architecture? codemap --deps . → look at hubs
What changed recently? codemap --diff
What was I working on? Check working set in prompt-submit hook output

Subsystems (if .codemap/config.json has routing)

Check codemap config show — routing subsystems define logical boundaries with associated docs and keywords. Read subsystem docs before tracing code.

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