Koskamo

The Builder's Prompt Library MCP

A public MCP server that exposes tools to search, fetch, and list 3,323 rubric-graded AI prompts for software builders, allowing agents to integrate prompt discovery into their workflows without requiring an API key.

Visit Alicia Dahling and Peter Lowe

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

The Builder's Prompt Library MCP logo, by Alicia Dahling and Peter LoweCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by Alicia Dahling and Peter Lowe
MCP endpoint (Streamable HTTP)
https://buildersprompt.com/mcp
Vendor documentation

What you can do with it

  • Search prompts by keyword with optional filters
  • Fetch a single prompt by slug
  • List delivery stages with prompt counts

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.ADahling/builders-prompt-library@1.0.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
builders-prompt-library 1.0.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Search and read 3,323 rubric-graded prompts for software delivery across six stages (Idea, Design, Build, Test, Secure, Ship). Use search_prompts to find relevant prompts by keyword; use get_prompt to fetch a full prompt by slug; use list_stages to see the stage taxonomy and counts.

Tools

3 advertised

search_prompts — Search prompts
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search the Builder's Prompt Library (3,323 rubric-graded prompts for software delivery) by keyword. Optionally filter by delivery stage or prompt-writing grade. Returns ranked matches with slug, title, summary, stage, category, and grade. Grades and quality_score describe prompt writing, not tested model performance.

search_prompts input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "query"
  ],
  "properties": {
    "grade": {
      "enum": [
        "A+",
        "A",
        "B",
        "C"
      ],
      "type": "string",
      "description": "Optional prompt-writing grade filter."
    },
    "limit": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "Max results (default 8, max 20)."
    },
    "query": {
      "type": "string",
      "maxLength": 256,
      "minLength": 1,
      "description": "Keywords to search for (max 256 characters)."
    },
    "stage": {
      "enum": [
        "Idea",
        "Design",
        "Build",
        "Test",
        "Secure",
        "Ship"
      ],
      "type": "string",
      "description": "Optional delivery stage filter."
    }
  }
}
search_prompts annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true
}
get_prompt — Get prompt
Advertised by the server during the last successful anonymous check.
Advertised read-only

Fetch the full text and metadata of a single published prompt by its slug, including where it runs (any chat app, chat app with your code pasted in, a tool with web access, or a coding agent).

get_prompt input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "slug"
  ],
  "properties": {
    "slug": {
      "type": "string",
      "pattern": "^[a-z0-9-]+$",
      "maxLength": 200,
      "minLength": 1,
      "description": "The prompt's URL slug."
    }
  }
}
get_prompt annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true
}
list_stages — List stages
Advertised by the server during the last successful anonymous check.
Advertised read-only

List the six delivery stages in the Builder's Prompt Library and how many published prompts each contains.

list_stages input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
list_stages annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
4693 ms
95th percentile latency
4693 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 4693 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you 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.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http the-builder-s-prompt-library-mcp https://buildersprompt.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add the-builder-s-prompt-library-mcp --url https://buildersprompt.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable the-builder-s-prompt-library-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "the-builder-s-prompt-library-mcp": {
      "url": "https://buildersprompt.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "the-builder-s-prompt-library-mcp": {
      "type": "streamableHttp",
      "url": "https://buildersprompt.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start the-builder-s-prompt-library-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "the-builder-s-prompt-library-mcp": {
      "type": "http",
      "url": "https://buildersprompt.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http the-builder-s-prompt-library-mcp https://buildersprompt.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "the-builder-s-prompt-library-mcp": {
      "url": "https://buildersprompt.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "the-builder-s-prompt-library-mcp": {
      "serverUrl": "https://buildersprompt.com/mcp"
    }
  }
}

Let your agent find its tools

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