Codesift — AI skill for Claude Code

CodeSift -- Token-efficient code intelligence for AI agents

CodeSift indexes your codebase with tree-sitter AST parsing and gives AI agents 150 MCP tools (55 core + 95 discoverable) via CLI or MCP server. It uses 61-95% fewer tokens than raw grep/Read workflows on typical code navigation tasks.

**Works with:** Claude Code, Cursor, Codex, Gemini CLI, Zed, Aider, Continue — any MCP client.

Install

**Bulletproof one-liner** (clears stale cache, installs latest, auto-configures all platforms):

npm cache clean --force && npm i -g codesift-mcp@latest

`npm cache clean --force` clears stale registry metadata that can cause `ETARGET` errors. The `postinstall` script then runs `codesift setup all` automatically.

**Restart your AI client** (close + reopen) so the new MCP server is picked up. New terminal sessions in your IDE work fine — no need to quit the IDE itself.

To configure individual platforms manually:

codesift setup claude    # Claude Code — config + rules + hooks + CLAUDE.md
codesift setup codex     # Codex CLI — config + AGENTS.md rules
codesift setup cursor    # Cursor IDE — config + .cursor/rules
codesift setup gemini    # Gemini CLI — config + GEMINI.md rules
codesift setup antigravity # Google Antigravity — config only
codesift setup all       # All platforms at once

**Verify installed version:**

codesift --version

**What `setup` installs (all by default):**

Component	What it does	Opt-out
MCP config	Registers codesift-mcp server	(required)
Rules file	Tool mapping, hints, ALWAYS/NEVER rules for your AI agent	--no-rules
Hooks (where supported)	Auto-index after Edit/Write, redirect large Read/Bash flows to CodeSift	--no-hooks

Additionally, every MCP client receives ~800 tokens of compact guidance automatically via the MCP `instructions` field — zero setup needed.

Update

npm update -g codesift-mcp
codesift setup a