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cli

Active·★ 48·ISC·Updated 2026-02-17

Syrin is a CLI tool designed to lint and test MCP (Model Context Protocol) servers, ensuring AI agents call external tools correctly. It identifies common issues like vague descriptions, underspecified inputs, and problematic tool behaviors before they reach production, preventing agent malfunctions and wasted tokens.

#AI Agents#Tool Validation#Linter#Test Runner#MCP#CLI Tool#CI/CD
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Not affiliated with Anthropic, OpenAI or Microsoft.

Guides
$ Install
$ npm install -g @syrin/cli
↗ Visit site★ GitHub
01

Features

01Perform static analysis to catch contract issues in MCP servers without executing tools.
02Run tools in a sandboxed environment and validate their behavior against defined contracts.
03Provide an interactive development session to observe LLM-tool interaction in real-time.
04Detect common tool definition flaws such as ambiguity, missing descriptions, underspecified inputs, and unexpected side effects.
02

Compatibility

Node.js
Runtime
Verified via docs
npm
Package Manager
Verified via docs
Python
MCP Server Language
Verified via docs
GitHub Actions
CI/CD Integration
Verified via docs
Linux (Ubuntu)
Operating System
Verified via docs
03

Quick start

1
$ npm install -g @syrin/cli
04

Use cases

↳Quickly analyze and lint any MCP server (HTTP or stdio transport) with a single command, even without prior installation.
↳Set up a new project to define tool contracts, write comprehensive test cases, and continuously validate MCP server integrity.
↳Integrate automated MCP validation and contract testing into CI/CD pipelines for robust and reliable AI agent development.
05

Alternatives

⚡Top VS:
VSdevopness★572→VSawesome-mcp-servers-devops★97→VSai-toolkit★51→

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syrin-labs /
cli
↗

Runtime intelligence system that makes MCP servers debuggable, testable, and safe to run in production.

48ISC
Last commit8mo ago
StatusActive
CategoryWorkflow Automation
Links
Documentation↗Discussion↗Issues↗Releases↗
Cloud Infrastructure
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