Koskamo

Promptlint MCP

A static linter for AI prompts that identifies contradictions, redundancy, ambiguity, and fluff. It operates as both a CLI and an MCP server, allowing agents like Claude Code to lint prompts before execution to save tokens and improve clarity.

Package and access

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

Promptlint MCP logo, by sean-sunagakuCommunity listingLocal stdioSource reviewed; not executedPublished by sean-sunagaku
You need:npm install -g promptlint-mcp
Vendor documentation

What you can do with it

  • Catch contradicting directives in system prompts
  • Strip politeness fluff and redundant sentences
  • Identify ambiguous pronouns without clear referents
  • Lint prompts via MCP server for agent integration

Source and maintenance

Community listingRegistry 0.1.3
mcp-registry: io.github.sean-sunagaku/promptlint-mcp@0.1.3Source repository
Maintenance checked

Packages and installation

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

promptlint-mcp 0.1.3

npm
promptlint-mcp package definition
{
  "version": "0.1.3",
  "transport": "stdio",
  "identifier": "promptlint-mcp",
  "registryType": "npm"
}

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.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "promptlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "promptlint-mcp@0.1.3"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "promptlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "promptlint-mcp@0.1.3"
      ]
    }
  }
}

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": {
    "promptlint-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "promptlint-mcp@0.1.3"
      ]
    }
  }
}

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": {
    "promptlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "promptlint-mcp@0.1.3"
      ]
    }
  }
}

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