mcp-assistant

mcp-assistant is a skill for Claude Code, Codex from zonlabs/mcp-ts. It costs 38 tokens per session (2,461 once invoked), scanned A, original, MIT.

A tool for finding and using connected MCP servers. MCP is a common way for coding agents to access outside services such as GitHub, Notion, or Supabase.

In plain words
What is it for?
Use it to discover available services, inspect their inputs, and run several connected tools in a secure sandbox.
Why use it?
It avoids loading every available tool into the agent at once and helps select only the service and instructions needed for a task.

Skill for Claude CodeCodex

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

Good fit Use it to discover available services, inspect their inputs, and run several connected tools in a secure sandbox.

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Install with agentmods
npx agentmods add skills/zonlabs/mcp-ts/mcp-assistant
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 zonlabs/mcp-ts --skill mcp-assistant
Clone the repo
git clone --depth 1 https://github.com/zonlabs/mcp-ts

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-assistant

README.md
[![agentmods](https://agentmods.dev/badge/skills/zonlabs/mcp-ts/mcp-assistant.svg)](https://agentmods.dev/skills/zonlabs/mcp-ts/mcp-assistant)
Your own site
<a href="https://agentmods.dev/skills/zonlabs/mcp-ts/mcp-assistant"><img src="https://agentmods.dev/badge/skills/zonlabs/mcp-ts/mcp-assistant.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,461 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Data Exfiltration · line 13
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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 $0.00038 $0.02461
Opus 5 $0.00019 $0.01230
Sonnet 5 $0.00008 $0.00492
Haiku 4.5 $0.00004 $0.00246

Measured 8d ago against content hash 2750deba8a07, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mcp-assistant 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 8d 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.

skills/mcp-assistant/SKILL.md · 324 lines

How it starts

The opening of the file, as written. The whole thing — 324 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP Assistant

Use MCP Assistant when a task needs tools from connected MCP servers, especially when many possible servers or tools may be available. Prefer MCP Assistant's discovery and routing tools instead of loading every downstream MCP tool directly into the agent context.

MCP Assistant server:

https://api.mcp-assistant.in/mcp

User connection page:

https://mcp-assistant.in/mcp

What MCP Assistant Provides

MCP Assistant provides access to 100+ MCP servers such as GitHub, Notion, Zapier, Supabase, Exa, DeepWiki, Apify, Context7 and other connected services.

It exposes meta-tools for dynamic MCP discovery and a CodeMode tool that executes programs inside a secure sandbox for programmatic tool calling and result processing. Use this to avoid expensive LLM tool-calling loops when a task can be handled by discovering the right tools, inspecting only the needed schemas, executing a small program, and returning the final result.

Core Principle

Keep MCP tools discoverable, not always loaded.

Do not assume the agent needs every connected tool schema in context. Use MCP Assistant to search for the relevant capability, inspect only the needed schema, then execute the selected tool or workflow through the sandboxed runner.

Available MCP Assistant Tools

list_mcp_servers

List all currently connected upstream MCP servers and their indexed tool counts.

Use this to inspect which services are active or to filter by server name/ID:

query: "github" (optional filter)

search_mcp_tools

Search connected MCP servers for relevant tools.

Use this first when the task may require an external service such as GitHub, Notion, Slack, Gmail, Linear, Supabase, Exa, Zapier, cloud providers, databases, or any other connected MCP server.

Search with the user's goal, not just a tool name. For example:

find GitHub issues by label
post a message to Slack
search the web with Exa
create a Notion page
query Supabase rows

Read the full file on GitHub · 324 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.

  1. 8d ago First seen · 324 lines · 38 tokens per session scan A 2750deba8a07

Subscribe to this mod's changes

mcp-assistant is a skill published in the GitHub repository zonlabs/mcp-ts (24 stars, last pushed 3d ago), licensed MIT. It adds 38 tokens to every session and 2,461 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 2026-08-30.

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