What is rich-domain-mcp-server?

A guide for building or improving MCP servers, which expose program tools and data to coding agents. It focuses on making tool descriptions and input schemas clearer and adding useful context to returned data.

Use it when adding MCP tools, refining their descriptions or inputs, investigating API data semantics, or deriving metadata, summaries, alerts, and selected fields from tool results.

It helps address unclear API meanings and weak tool-call feedback, so an agent can better understand available data and choose relevant fields or summaries.

How DaveGold/mcp-metadata-demo configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to DaveGold/mcp-metadata-demo. 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/DaveGold/mcp-metadata-demo/main/.agents/skills/rich-domain-mcp-server/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/DaveGold/mcp-metadata-demo

Made for: Claude Code, Codex.

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/skills/davegold/mcp-metadata-demo/rich-domain-mcp-server/github.svg)](https://agentmods.dev/skills/davegold/mcp-metadata-demo/rich-domain-mcp-server)

Your own site

<a href="https://agentmods.dev/skills/davegold/mcp-metadata-demo/rich-domain-mcp-server"><img src="https://agentmods.dev/badge/skills/davegold/mcp-metadata-demo/rich-domain-mcp-server/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/skills/davegold/mcp-metadata-demo/rich-domain-mcp-server"><img src="https://agentmods.dev/badge/skills/davegold/mcp-metadata-demo/rich-domain-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 232 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 351 The whole file, excluding the scripts and references it only reads on demand.

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	$0.00232	$0.00351
Opus 5.5	$0.00093	$0.00140
Sonnet 5.5	$0.00046	$0.00070
Haiku 4.5	$0.00023	$0.00035

Measured 9d ago against content hash 2013d5954933, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rich-domain-mcp-server 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 9d 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.

.agents/skills/rich-domain-mcp-server/SKILL.md · 24 lines

What it actually says

Read and follow the canonical project skill at .codex/skills/rich-domain-mcp-server/SKILL.md. It is a byte-identical copy of .claude/skills/rich-domain-mcp-server/; src/skill-copies.test.ts keeps the two in sync.

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.

9d ago Changed 2013d5954933
1mo ago Changed · -1 tokens per session 8a03c4b86fc5
1mo ago Changed 500a7e84a281
1mo ago Changed · +16 lines · +164 tokens per session cecb886102f8
2mo ago First seen · 8 lines · 69 tokens per session scan A 6bbd7bc5cc78

Subscribe to this mod's changes

rich-domain-mcp-server is a skill published in the GitHub repository DaveGold/mcp-metadata-demo (5 stars, last pushed 11d ago), licensed MIT. It adds 232 tokens to every session and 351 once invoked, about $0.0009 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.

Backend and APIs Building agents ai-tooling bag claude energy-label kadaster mcp

rich-domain-mcp-server next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
rich-domain-mcp-serverDaveGold/mcp-metadata-demo	Skill	5	11d ago	MIT	A	232	Claude Code, Codex
laravelhmj1026/dhpk	Skill	2	yesterday	MIT	A	91	Claude Code, Codex
yii1hmj1026/dhpk	Skill	2	yesterday	MIT	A	72	Claude Code, Codex
nextjshmj1026/dhpk	Skill	2	yesterday	MIT	A	75	Claude Code, Codex
pythonhmj1026/dhpk	Skill	2	yesterday	MIT	A	66	Claude Code, Codex
api-testingkevinnft/ai-agent-skills	Skill	14	3mo ago	MIT	A	27	Claude Code, Codex
django-patternsmasrisystems/dot-agents	Skill	0	4d ago	none	A	32	Claude Code, Kiro

mcp-metadata-demo: Skill for Claude Code