Koskamo

prinfer MCP

A community MCP server that leverages the TypeScript compiler to provide AI coding agents with inferred types, completions, and type errors, eliminating the need for agents to guess type information.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

prinfer MCP logo, by clockblockerCommunity listingLocal stdioSource reviewed; not executedPublished by clockblocker
Vendor documentation

What you can do with it

  • Provide inferred types to AI coding agents
  • Generate completions based on TypeScript inference
  • Report type errors to agents for better code correction
  • Snapshot test inferred types in unit tests

Source and maintenance

Community listingRegistry 3.4.0
mcp-registry: io.github.clockblocker/prinfer@3.4.0Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

prinfer 3.4.0

npmnpx
prinfer package definition
{
  "version": "3.4.0",
  "transport": "stdio",
  "identifier": "prinfer",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "PRINFER_BACKEND",
      "format": "string",
      "choices": [
        "typescript7",
        "typescript6"
      ],
      "default": "typescript7",
      "description": "Backend for the hover and diagnostics tools. Use typescript6 if the native TypeScript 7 backend fails in your project."
    },
    {
      "name": "PRINFER_COMPILER",
      "format": "string",
      "choices": [
        "bundled",
        "project",
        "auto"
      ],
      "default": "bundled",
      "description": "Which TypeScript compilers to use: prinfer's bundled ones, the project's own (typescript 5.0 to 6.x; typescript 7 or @typescript/native-preview), or auto: the project's when supported, else bundled."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "prinfer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "prinfer@3.4.0",
        "mcp"
      ],
      "env": {
        "PRINFER_BACKEND": "<YOUR_PRINFER_BACKEND>",
        "PRINFER_COMPILER": "<YOUR_PRINFER_COMPILER>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "prinfer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "prinfer@3.4.0",
        "mcp"
      ],
      "env": {
        "PRINFER_BACKEND": "<YOUR_PRINFER_BACKEND>",
        "PRINFER_COMPILER": "<YOUR_PRINFER_COMPILER>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "prinfer-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "prinfer@3.4.0",
        "mcp"
      ],
      "env": {
        "PRINFER_BACKEND": "<YOUR_PRINFER_BACKEND>",
        "PRINFER_COMPILER": "<YOUR_PRINFER_COMPILER>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "prinfer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "prinfer@3.4.0",
        "mcp"
      ],
      "env": {
        "PRINFER_BACKEND": "<YOUR_PRINFER_BACKEND>",
        "PRINFER_COMPILER": "<YOUR_PRINFER_COMPILER>"
      }
    }
  }
}

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