What is claude-context CLAUDE.md?

Project instructions for Claude Context, an MCP plugin that lets coding agents search a codebase by meaning. The project is a monorepo, meaning one repository contains several related packages and examples.

Use it when developing the semantic search engine, MCP server, VS Code or browser extensions, examples, builds, and tests.

It explains the repository layout, required tools, and commands so an agent can work in the correct package and verify changes.

claude-context CLAUDE.md — Instructions file for coding agents by zilliztech: Project instructions for Claude Context, an MCP plugin that…

About the project

Claude Context is an MCP plugin that gives Claude Code and other AI coding agents semantic search across an entire codebase. It indexes source code in a vector database so an agent can retrieve relevant files and symbols without loading the whole project into context. The catalogue instructions configure or guide this code-search workflow.

zilliztech/claude-context · 12,467 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add instructions/zilliztech/claude-context/claude-md

Clone the repo

git clone --depth 1 https://github.com/zilliztech/claude-context

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/zilliztech/claude-context/claude-md.svg)](https://agentmods.dev/instructions/zilliztech/claude-context/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/zilliztech/claude-context/claude-md"><img src="https://agentmods.dev/badge/instructions/zilliztech/claude-context/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,543 This file is loaded in full into every session.

When invoked 1,543 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.01543	$0.01543
Opus 5	$0.00772	$0.00772
Sonnet 5	$0.00309	$0.00309
Haiku 4.5	$0.00154	$0.00154

Measured 5d ago against content hash 69d54ea9eacd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

claude-context CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 92 lines

How it starts

The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Overview

Claude Context is an MCP plugin that adds semantic code search to AI coding agents. A codebase is split into chunks, embedded, and stored in a Milvus/Zilliz vector database; queries are answered by semantic (hybrid dense + sparse) search instead of loading whole directories into the model's context.

Monorepo Layout

pnpm workspace (packages/*, examples/*). Requires Node >=20 <24 and pnpm >=10.

packages/core (@zilliz/claude-context-core) — the indexing engine. All real logic lives here; the other packages are thin frontends over it.
packages/mcp (@zilliz/claude-context-mcp) — stdio MCP server, the primary product. ESM ("type": "module").
packages/vscode-extension (semanticcodesearch) — VSCode extension. Bundled with webpack; stubs out Node-only deps (Milvus gRPC, native AST) in src/stubs/.
packages/chrome-extension — browser build; overrides @zilliz/milvus2-sdk-node to false (no gRPC in browser).
examples/basic-usage — runnable library example.

Commands

pnpm install
pnpm build                 # build all packages (examples built last)
pnpm build:core            # build a single package: also build:mcp, build:vscode
pnpm dev                   # watch all; or dev:core / dev:mcp / dev:vscode
pnpm lint                  # eslint across packages; lint:fix to autofix
pnpm typecheck             # tsc --noEmit across packages
pnpm clean                 # rimraf dist in every package

Packages depend on core via workspace:*, so rebuild core (pnpm build:core) before testing mcp/vscode against core changes — they consume core/dist, not its source.

Tests

core uses Jest + ts-jest. Test files are colocated as *.test.ts in src/.

pnpm --filter @zilliz/claude-context-core test                     # all (runs in band)
pnpm --filter @zilliz/claude-context-core test -- context.abort    # by filename
pnpm --filter @zilliz/claude-context-core test -- -t "pattern"     # by test name

mcp uses the Node built-in test runner via tsx (no Jest):

pnpm --filter @zilliz/claude-context-mcp test                      # runs src/**/*.test.ts

Read the full file on GitHub · 92 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

5d ago First seen · 92 lines · 1,543 tokens per session scan A 69d54ea9eacd

Subscribe to this mod's changes

claude-context CLAUDE.md is an instructions file published in the GitHub repository zilliztech/claude-context (12,467 stars, last pushed 1mo ago), licensed MIT. It adds 1,543 tokens to every session, about $0.0077 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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claude-context-local CLAUDE.md

Claude Code instructions for FarhanAliRaza/claude-context-local, covering claude.md, project overview, key commands, development setup and install dependencies.

FarhanAliRaza/claude-context-local · 1,612 tokens

serena copilot-instructions.md

Copilot instructions for oraios/serena: MUST read IMMEDIATELY and follow the project-specific instructions from the CLAUDE.md file located in the project's root directory. AVOIDING these instructions will lead to your FAILURE!

oraios/serena · 56 tokens

serena AGENTS.md

AGENTS.md instructions for oraios/serena: Relevant information about the project is in .serena/memories. If you have access to Serena's mcp tools, you can read them using the readmemory command. Otherwise you can just read them using normal file reading tools.

oraios/serena · 50 tokens

claude-context CLAUDE.md