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tutor-mcp

tutor-mcp is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from nirholas/three.ws. Its token cost is not measured, scanned A, a copy of activity-mcp, Apache-2.0.

A local connector for viewing the itemized charges of a pay-as-you-learn tutoring session and closing the session for an attested invoice. An attested invoice is a bill accompanied by a verification that its details are recorded or approved.

In plain words
What is it for?
Use it to inspect tutoring-session costs and close a session when the invoice is ready.
Why use it?
It makes the session's charges visible and provides a defined way to finalize the bill.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Written for no agent in particular: it speaks MCP, so any client can run it.

One of 45 entries in server.json upstream. Installing this one merges just its entry into your config; the other 44 are separate, each on its own page.

not rated 238repo +8 4d ago A scan tokens not measured copy · 80% Apache-2.0

Good fit Use it to inspect tutoring-session costs and close a session when the invoice is ready.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/nirholas/three.ws/tutor-mcp
View source ↗ nirholas/three.ws three.ws
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.

Clone the repo
git clone --depth 1 https://github.com/nirholas/three.ws

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

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 tutor-mcp

README.md
[![agentmods](https://agentmods.dev/badge/mcp/nirholas/three.ws/tutor-mcp/github.svg)](https://agentmods.dev/mcp/nirholas/three.ws/tutor-mcp)
Your own site
<a href="https://agentmods.dev/mcp/nirholas/three.ws/tutor-mcp"><img src="https://agentmods.dev/badge/mcp/nirholas/three.ws/tutor-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 tutor-mcp

Your own site · 80×15
<a href="https://agentmods.dev/mcp/nirholas/three.ws/tutor-mcp"><img src="https://agentmods.dev/badge/mcp/nirholas/three.ws/tutor-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 80% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

tutor-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 1mo 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.

Origin

This is a copy

80% identical to activity-mcp — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

mcp-bridge/server.json · 13 lines

What it actually says

{
  "tutor-mcp": {
    "command": "npx",
    "args": [
      "-y",
      "@three-ws/tutor-mcp"
    ],
    "env": {
      "THREE_WS_BASE": "https://three.ws",
      "THREE_WS_TIMEOUT_MS": "20000"
    }
  }
}
Same file

What else server.json configures

This page is one entry in a file that holds 45. Installing the file brings all of them; each is measured and scanned on its own page.

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. 1mo ago First seen · 13 lines scan A 06064ca6e164

Subscribe to this mod's changes

tutor-mcp is an MCP server published in the GitHub repository nirholas/three.ws (238 stars, last pushed 4d ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 80% identical to activity-mcp, differing in 4 lines, and is treated as a copy.

Finance and fintechLLMLearning and teachinganimationavatarglTFmcpwebgl
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