mcp

mcp is a skill for Claude Code, Codex from thewolffish/wolffish-app. It costs 52 tokens per session (1,695 once invoked), scanned A, original, MIT.

A manager for MCP (Model Context Protocol) connections, which link the agent to external servers that provide additional tools.

In plain words
What is it for?
Use it to manage local command-based servers and remote HTTP servers, and to control which connected servers' tools are available.
Why use it?
It avoids manually changing connection settings when you need to add, test, pause, sign in to, or remove an external tool server.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to manage local command-based servers and remote HTTP servers, and to control which connected servers' tools are available.

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Install with agentmods
npx agentmods add skills/thewolffish/wolffish-app/mcp
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.

Any agent
npx skills add thewolffish/wolffish-app --skill mcp
Clone the repo
git clone --depth 1 https://github.com/thewolffish/wolffish-app

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/thewolffish/wolffish-app/mcp/github.svg)](https://agentmods.dev/skills/thewolffish/wolffish-app/mcp)
Your own site
<a href="https://agentmods.dev/skills/thewolffish/wolffish-app/mcp"><img src="https://agentmods.dev/badge/skills/thewolffish/wolffish-app/mcp/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.

agentmods 80×15 button for mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/thewolffish/wolffish-app/mcp"><img src="https://agentmods.dev/badge/skills/thewolffish/wolffish-app/mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,695 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.01695
Opus 5 $0.00026 $0.00847
Sonnet 5 $0.00010 $0.00339
Haiku 4.5 $0.00005 $0.00169

Measured 9d ago against content hash c576d908211b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

mcp 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.

The scan reads SKILL.md. This mod also ships 1 executable file (plugin/index.mjs), 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.

src/defaults/workspace/brain/cerebellum/mcp/SKILL.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP — manage your own tool servers

MCP (Model Context Protocol) servers are external tool providers the user can connect to Wolffish. Each connected server contributes a group of tools — namespaced by that server — that you can call like any other tool. This capability lets you manage those connections yourself, entirely by conversation: add one, check it, pause it, or remove it. Everything you do here is the exact same operation the user could do by hand in Settings → MCP, so your changes show up there live (status dots, tool counts, the connection list) and theirs show up to you.

Two kinds of server

  • Local (stdio) — a command Wolffish runs on this machine, e.g. uvx tafsir-mcp or npx -y @scope/some-server. Pass the whole command line as target. If it needs secrets, pass them in env.
  • Remote (HTTP) — a hosted server at an http(s)://… URL, e.g. https://mcp.example.com/mcp. Pass the URL as target. Some remote servers require sign-in (see below).

You never choose the transport — mcp_add detects it from the target.

How connections behave (so you set the right expectations)

  • Adding connects immediately. No restart. The server's tools become callable on your next turn — if the user asks you to use a just-added server in the same message, add it, tell them it's connected, and use it on your following turn.
  • Failures are silent and self-healing. If a server crashes or a remote endpoint drops, Wolffish keeps running and reconnects it in the background with backoff; its tools quietly drop out until it's back. A tool call to a momentarily-unreachable server returns a retryable "temporarily unreachable" error — retry shortly or proceed without it. You don't need to babysit this.
  • mcp_test is your probe. Use it to confirm a new server works, or to force an offline one to retry now. It also resets the retry backoff.

Signing in (remote OAuth)

If mcp_add or mcp_list shows a server as needs sign-in, call mcp_authorize — it opens the user's browser to approve access. It does not finish by itself: tell the user to complete sign-in in the browser, and once they're back, confirm with mcp_test or mcp_list. Never ask the user for passwords or tokens to type to you; the browser flow is how they authenticate.

Read the full file on GitHub · 126 lines

Files

What ships with it

1 file 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. 9d ago First seen · 126 lines · 52 tokens per session scan A c576d908211b

Subscribe to this mod's changes

mcp is a skill published in the GitHub repository thewolffish/wolffish-app (5 stars, last pushed 2d ago), licensed MIT. It adds 52 tokens to every session and 1,695 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 2026-08-31.

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