[Publisher repository snapshot. Source commit dated 2026-10-15 (UTC), raw source captured on 2026-10-17 (UTC). Latest default-branch state and installation are unverified.]
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tree-sitting
Tree-sitter symbol index over a local checkout. Every result carries line
ranges, so the next step is a scoped Read.
Setup
Needs Python 3.10+ and pip install tree-sitter. On macOS, /usr/bin/python3
is 3.9 and will not work; use a Homebrew or uv Python. Grammars are bundled
for Linux x86_64 (parsers/*.so) and macOS (parsers/*.dylib).
If a file's grammar doesn't load, the file is skipped and stderr prints
WARNING: no grammar for … with the fix. Resolve that before trusting an empty
result. On other platforms, run python3 scripts/build_grammars.py (needs git
and cc). It writes to $TREESIT_PARSERS_DIR, or ~/.cache/tree-sitting/parsers/
when that is unset, and grammars there take precedence over the bundle.
Installed tree-sitter-<lang> wheels are the last fallback.
Use
scripts/treesit.py in this skill's directory scans the repo on every call
(cached on disk; invalidated when files or grammars change), prints a tree
overview, then answers the queries. Batch queries so one scan serves them all.
python3 scripts/treesit.py REPO # overview, depth 1
python3 scripts/treesit.py REPO --path=src/core --detail=full # drill in
python3 scripts/treesit.py REPO --no-tree 'find:Parser*' 'source:parse_input' 'refs:ParseState'
| Query | Returns |
|---|---|
find:PATTERN[:KIND[:LIMIT]] |
symbols by name, substring or glob |
symbols:FILE |
every symbol in a file |
source:SYMBOL[:FILE] |
the symbol's source |
refs:SYMBOL[:LIMIT] |
textual references |
imports:FILE |
a file's imports |
dir:PATH |
directory overview |
Flags: --depth N (-1 = all), --detail sparse|normal|full, --path DIR,
--skip DIRS, --no-tree, --stats, --no-cache, --rebuild-cache.
scripts/engine.py exposes CodeCache for use inside one Python process.
Languages: Python, JavaScript, TypeScript/TSX, Go, Rust, Ruby, Java, C, HTML,
Markdown (heading outline), Mojo. Other languages get generic extraction if
their tree-sitter-<lang> wheel is installed.
Use something else for
- a repo that isn't on disk:
accessing-github-repos - what a codebase does:
featuring - a first look at an unfamiliar repo:
exploring-codebases - binding-resolved Python callers:
searching-codebases --refs - literal text or regex:
rg