Tteop MCP Server

tteop-mcp

Production MCP server for TTEOP — Token Telemetry Evaluation Operator Protocol.

Build, validate, and describe TTEOP telemetry envelopes via the Model Context Protocol. Powered by the official MCP TypeScript SDK v2 and the tteop-spec reference implementation.

Architecture

This package is a thin MCP transport layer. All protocol logic — envelope construction, metric computation (banker's rounding), schema validation, and semantic rules — is delegated to tteop-spec via its stable JavaScript API:

• tteop-spec/builder → buildEnvelope(telemetry, options)
• tteop-spec/validator → validateEnvelope(envelope, options), computeMetrics(telemetry)

No metric formulas or schema logic are duplicated here. When tteop-spec updates its validator or builder, this server inherits the changes.

Product separation

Install

npm install -g tteop-mcp
# or use directly:
npx tteop-mcp

Tools

Usage

With Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "tteop": {
      "command": "npx",
      "args": ["-y", "tteop-mcp"]
    }
  }
}

With MCP Inspector

npx @modelcontextprotocol/inspector npx -y tteop-mcp

Open the browser tab, click Connect, open the Tools tab, and call any tool.

Programmatic

import { spawn } from "node:child_process";

const proc = spawn("npx", ["-y", "tteop-mcp"], { stdio: ["pipe", "pipe", "pipe"] });
// Send JSON-RPC 2.0 messages to proc.stdin, read responses from proc.stdout

Development

# Install deps
npm install

# Link tteop-spec locally (if not published to npm yet)
cd ../otep-spec && npm link && cd ../tteop-mcp && npm link tteop-spec

# Run tests
npm test                    # real MCP client test (50 assertions)
npm run test:packaged       # packaged tarball test (13 assertions)

# Run with MCP Inspector
npm run inspect

# Start the server
npm start

Acceptance criteria

• npx tteop-mcp waits for an MCP connection
• initialize succeeds
• tools/list returns complete schemas (4 tools)
• Every tool can be called through MCP Inspector
• Invalid token values return structured MCP errors (isError: true with validation message)
• stdout contains protocol messages only
• CI runs an actual MCP client against the packaged tarball

Distribution roadmap

This package is built and tested but not yet published. The next steps require owner credentials:

1. Publish tteop-spec@0.1.4-draft to npm (prerequisite — this package pins it exactly).
2. Publish tteop-mcp@0.2.0 to npm.
3. Publish to the MCP Registry using mcp-publisher:

   mcp-publisher init      # generates server.json (already present)
   mcp-publisher login     # GitHub auth
   mcp-publisher publish   # publishes server.json to the registry
   

   The mcpName in package.json (io.github.SunrisesIllNeverSee/tteop-mcp) must match the name in server.json.
4. Submit to Glama using the glama.json metadata.
5. Test privately on Glama — verify the live Inspector session passes.
6. Switch the listing public after the live Inspector session passes.

License

Apache-2.0