About mapping-codebases
mapping-codebases is a deprecated skill for generating persisted symbol maps of code repositories. Its README directs users to tree-sitting instead and describes the archived v0.8.0 release.
Key features
- 01Deprecated; use tree-sitting instead
- 02Previously generated per-directory _MAP.md files
- 03Archived v0.8.0 snapshot includes codemap.py and parser grammars
Use cases
- 01Refer to the archived mapping-codebases v0.8.0 release
- 02Replace persisted code maps with tree-sitting queries
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ oaustegard/ claude-skills --skill mapping-codebasesAfter installing, type/mapping-codebasesin Claude Code to confirm it loaded.
Bundled filesCHANGELOG.md
Details
From the project READMEMapping Codebases (deprecated)
Use tree-sitting instead.
Why
This skill wrote _MAP.md files to disk — a persisted symbol inventory per
directory, generated once and read many times. That tradeoff made sense when
scanning was expensive. It isn't: tree-sitting parses a 250-file repo in about
700ms and answers queries against the in-memory AST in under a millisecond.
A persisted map costs what a runtime scan does not — it goes stale, it needs regenerating, it gets committed, and it must be excluded from every other tool that walks the tree. Nothing was gained for that.
Replacement commands
TREESIT=/mnt/skills/user/tree-sitting/scripts/treesit.py
# Was: codemap.py /path/to/repo → root orientation
python3 $TREESIT /path/to/repo
# Was: reading every _MAP.md in the tree → full inventory
python3 $TREESIT /path/to/repo --depth=-1 --detail=sparse
# Was: grepping _MAP.md for a symbol → direct lookup
python3 $TREESIT /path/to/repo --no-tree 'find:parse_input'
The archived version
The last working release is
mapping-codebases-v0.8.0
(2026-03-31). It carries scripts/codemap.py and the eleven bundled
parsers/*.so grammars. The release is the snapshot; nothing in this directory
reproduces it.
Note that v0.8.0 ships a latent bug: codemap.py:1216 calls an unimported
get_parser() inside a try swallowed by a bare except Exception, so HTML
inline-JavaScript symbol extraction silently returned nothing. It will not be
fixed.