What is openmetadata-mcp-server CLAUDE.md?

Project instructions for working on an OpenMetadata MCP server, a program that lets AI tools manage metadata through a standard connection. The instructions describe the project, its folders, how to run it, and its tool categories.

Navigating the repository, building and running the server, understanding its metadata tools, and following its configuration and write-access rules.

They give a coding agent the local context needed to make consistent changes in this repository. They also document important settings, authentication, and the default read-only behaviour.

How us-all/openmetadata-mcp-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to us-all/openmetadata-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/us-all/openmetadata-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/us-all/openmetadata-mcp-server

Made for: Claude Code.

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/us-all/openmetadata-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/us-all/openmetadata-mcp-server/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/us-all/openmetadata-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/us-all/openmetadata-mcp-server/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/us-all/openmetadata-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/us-all/openmetadata-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 3,668 This file is loaded in full into every session.

When invoked 3,668 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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 5.1	$0.03668	$0.03668
Opus 5.5	$0.01467	$0.01467
Sonnet 5.5	$0.00734	$0.00734
Haiku 4.5	$0.00367	$0.00367

Measured 2mo ago against content hash fe5b2e8b997c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

openmetadata-mcp-server 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 2mo 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 · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

이 파일은 Claude Code가 이 저장소에서 작업할 때 참고하는 컨텍스트입니다.

프로젝트 개요

@us-all/openmetadata-mcp — OpenMetadata REST API를 MCP stdio 서버로 노출. 156 도구(meta 1 + 도메인 155)로 metadata 관리, lineage, search(키워드+semantic), data quality, sample-data 전 영역 커버. Read-only 기본, 쓰기는 OPENMETADATA_ALLOW_WRITE=true로 옵트인.

타겟 OpenMetadata: 1.x (1.12+ semantic search 활용)
런타임: Node 18+, stdio transport, TypeScript strict
인증: JWT Bot 토큰 (OPENMETADATA_TOKEN)
표준: @us-all MCP Standard 준수

디렉토리

src/
├── index.ts                # MCP 서버 + tool() 헬퍼 + 카테고리별 도구 등록
├── config.ts               # ENV 로딩 (OM_TOOLS / OM_DISABLE 토글 포함)
├── client.ts               # OpenMetadata REST 클라이언트 (JSON-Patch 자동 처리)
├── tool-registry.ts        # CATEGORIES 정의 + @us-all/mcp-toolkit 사용
├── resources.ts            # MCP Resources (om:// URI scheme)
└── tools/
    ├── utils.ts            # wrapToolHandler (auto-extractFields), assertWriteAllowed, error sanitization
    ├── extract-fields.ts   # toolkit re-export (backward compat)
    ├── search.ts           # search-metadata, suggest-metadata
    ├── semantic-search.ts  # OM 1.12+ /search/vector/query
    ├── tables.ts           # CRUD (extractFields 적용)
    ├── databases.ts schemas.ts lineage.ts services.ts ...   # 30+ entity files
    ├── aggregations.ts     # get-table-summary (round-trip 제거)
    └── sample-data.ts      # 6 sample-data 도구

Build & Run

pnpm install
pnpm build              # tsc → dist/
pnpm test               # vitest (extract-fields tests)
pnpm token-stats        # tools/list 토큰 측정

카테고리 (9)

OM_TOOLS=core,governance,quality 같이 ENV 토글로 일부만 로드 가능.

카테고리	포함 도구
`search`	search-metadata, suggest-metadata, semantic-search
`core`	tables, databases, schemas, lineage, get-table-summary
`discovery`	dashboards, pipelines, charts, topics, mlmodels, containers, queries, stored-procedures
`governance`	glossary, classifications, tags, domains, dataproducts
`quality`	data-quality (test-suites/cases), sample-data
`services`	database/dashboard/messaging/pipeline/mlmodel/storage services
`admin`	users, teams, access (roles/policies), bots
`events`	event subscriptions
`meta`	search-tools (항상 활성)

Read the full file on GitHub · 131 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.

2mo ago First seen · 131 lines · 3,668 tokens per session scan A fe5b2e8b997c

Subscribe to this mod's changes

openmetadata-mcp-server CLAUDE.md is an instructions file published in the GitHub repository us-all/openmetadata-mcp-server (0 stars, last pushed 4mo ago), licensed MIT. It adds 3,668 tokens to every session, about $0.0147 per session on Opus 5.5. 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 2026-08-31.

Building agents Data and AI

openmetadata-mcp-server CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
openmetadata-mcp-server CLAUDE.mdus-all/openmetadata-mcp-server	Instructions file	0	4mo ago	MIT	A	3,668	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

openmetadata-mcp-server: Instructions file for Claude Code