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Semantic code search for AI — ripgrep speed with tree-sitter AST parsing.
★ 722 starsApache-2.0
View guide →Lightweight AST-based semantic code search CLI (ccc) that makes coding agents faster and cheaper
cocoindex-code is an open-source dev tools project by cocoindex-io (cocoindex-io/cocoindex-code on GitHub). It has 2,772 GitHub stars and 229 forks, is released under the Apache-2.0 license, and was last updated on GitHub on 6 October 2026.
Decide whether you want direct CLI search, or your coding agent to use semantic search automatically via the Skill/MCP integration.
Install cocoindex-code[full] with pipx or uv tool for local embeddings, or the slim build if you will use a cloud embedding API.
Optionally add the agent integration (npx skills add, or claude mcp add cocoindex-code -- ccc mcp), then let it initialize the project.
Run ccc index if needed, then ccc search "authentication logic" — or just ask your agent to find how something works.
Indexes code by syntax tree (tree-sitter), so search matches code structure and meaning, not just text.
The README emphasizes a 1-minute setup: install and go; ccc index auto-initializes new projects with defaults.
npx skills add cocoindex-io/cocoindex-code teaches Claude Code and other skill-compatible agents to initialize, index and search on their own.
ccc mcp runs a stdio MCP server exposing a search tool with refresh_index, language and path filters.
ccc grep finds code by structural example pattern against the syntax tree — no index or embeddings required.
init, index, search, grep, status, doctor, reset and a background daemon that keeps the index fresh.
Clone CocoIndex Code if you want the source; most users install the CLI in step 2.
git clone https://github.com/cocoindex-io/cocoindex-code.git
cd cocoindex-codeInstall the batteries-included build as the README recommends.
pipx install 'cocoindex-code[full]'
# or: uv tool install --upgrade 'cocoindex-code[full]'Initialize (optional), build the index, and run a semantic search.
ccc init
ccc index
ccc search "authentication logic"cocoindex-io maintains it, built on their CocoIndex engine.
Yes, Apache-2.0 licensed. The [full] install uses local embeddings with no API key; the slim install needs a cloud embedding provider key.
Not with the [full] install — local embeddings (default model Snowflake/snowflake-arctic-embed-xs) work out of the box. The slim install requires a cloud provider.
Text search finds exact strings. ccc adds AST-aware semantic retrieval with ranked chunks, file paths and line numbers, plus an MCP/Skill interface agents can call directly.
pipx install 'cocoindex-code[full]', run ccc index in your repo, then ccc search — or add the Skill so your agent does it for you.
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