mcp-server-patterns

mcp-server-patterns is a skill for Claude Code from bcefghj/forks-collection. It costs 44 tokens per session (880 once invoked), scanned A, original, no licence file.

A guide for building MCP servers with the Node.js and TypeScript software development kits. MCP servers provide tools, data resources, and prompts that an AI assistant can use.

In plain words
What is it for?
Use it to build servers with tools, resources, and prompts, add Zod validation, and choose between standard input/output and Streamable HTTP connections.
Why use it?
It helps developers choose server communication methods and validate inputs when implementing an MCP server.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents).

Part of the everything-claude-code plugin — 50 skills, 64 commands, 31 agents, 6 MCP servers shipped together

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 skills/bcefghj/forks-collection/mcp-server-patterns
Any agent
npx skills add bcefghj/forks-collection --skill mcp-server-patterns
Clone the repo
git clone --depth 1 https://github.com/bcefghj/forks-collection

Made for: Claude Code.

Or install everything-claude-code, the plugin that ships this one along with the rest of its 50 skills, 64 commands, 31 agents, 6 MCP servers.

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.

agentmods badge for mcp-server-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/bcefghj/forks-collection/mcp-server-patterns.svg)](https://agentmods.dev/skills/bcefghj/forks-collection/mcp-server-patterns)
Your own site
<a href="https://agentmods.dev/skills/bcefghj/forks-collection/mcp-server-patterns"><img src="https://agentmods.dev/badge/skills/bcefghj/forks-collection/mcp-server-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 880 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.00880
Opus 5 $0.00022 $0.00440
Sonnet 5 $0.00009 $0.00176
Haiku 4.5 $0.00004 $0.00088

Measured 6d ago against content hash 8da7edb0647f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

mcp-server-patterns 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 6d 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-code-forks/everything-claude-code/.agents/skills/mcp-server-patterns/SKILL.md · 68 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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.

  1. 6d ago First seen · 68 lines · 44 tokens per session scan A 8da7edb0647f

Subscribe to this mod's changes

mcp-server-patterns is a skill published in the GitHub repository bcefghj/forks-collection (5 stars, last pushed 5mo ago), with no licence file. It adds 44 tokens to every session and 880 once invoked, about $0.0002 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 2026-08-31.

Related

Other skills, from other repositories