mcp-builder

mcp-builder is a skill for Claude Code, Codex from basher83/Zammad-MCP. It costs 61 tokens per session (2,889 once invoked), scanned A, original, AGPL-3.0.

A guide for building MCP servers, which let an AI agent use tools connected to outside services such as APIs. It covers Python and Node.js/TypeScript implementations.

In plain words
What is it for?
Use it when connecting an AI agent to an external API or service through an MCP server.
Why use it?
It helps you design the connection and its tools consistently instead of working out the server structure from scratch.

Skill for Claude CodeCodex

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/basher83/zammad-mcp/mcp-builder
Any agent
npx skills add basher83/Zammad-MCP --skill mcp-builder
Clone the repo
git clone --depth 1 https://github.com/basher83/Zammad-MCP

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.

agentmods badge for mcp-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/basher83/zammad-mcp/mcp-builder.svg)](https://agentmods.dev/skills/basher83/zammad-mcp/mcp-builder)
Your own site
<a href="https://agentmods.dev/skills/basher83/zammad-mcp/mcp-builder"><img src="https://agentmods.dev/badge/skills/basher83/zammad-mcp/mcp-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,889 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 $0.00061 $0.02889
Opus 5 $0.00030 $0.01444
Sonnet 5 $0.00012 $0.00578
Haiku 4.5 $0.00006 $0.00289

Measured 5d ago against content hash 3578e3b24212, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

mcp-builder 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/connections.py, scripts/evaluation.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/skills/mcp-builder/SKILL.md · 340 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 340 lines · 61 tokens per session scan A 3578e3b24212

Subscribe to this mod's changes

mcp-builder is a skill published in the GitHub repository basher83/Zammad-MCP (38 stars, last pushed today), licensed AGPL-3.0. It adds 61 tokens to every session and 2,889 once invoked, about $0.0003 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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