The Builder's Prompt Library

io.github.ADahlingPublished by GitHub account ADahlingv1.0.0Updated Oct 25, 2026

Search 3,323 graded AI prompts for software builders; fetch any prompt by slug. No key needed.

VerifiedStreamable HTTPWeb executableDeveloper ToolsAI & ML

Overview

AI-generated overview

A public, keyless MCP server that lets an assistant search and fetch 3,323 rubric-graded AI prompts for software delivery across six stages.

What you can do
Search prompts by keyword, optionally filtered by delivery stage or writing grade, with ranked results showing slug, title, summary, stage, category and grade (search_prompts). Fetch the full text and metadata of a single prompt by slug, including where it is meant to run (get_prompt). List the six delivery stages and how many published prompts each contains (list_stages).
When to use it
Useful when you want an assistant to find a ready-made prompt for a software task such as ideation, design, building, testing, security or shipping, or to pull a specific prompt's full text into a conversation.
Requirements
A remote Streamable HTTP endpoint at buildersprompt.com; no API key, account, environment variables or headers are declared. The client must support remote MCP connections.
Before you install
Read-only tools; no writes or credentials are requested. Grades describe prompt writing quality, not tested model results, so treat them as a writing signal. Prompts contain fill-in fields that must be replaced before use. Republishing prompts requires attribution under CC BY 4.0.

Installation

In SourceWeft

  1. Open The Builder's Prompt Library in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.ADahling%2Fbuilders-prompt-library/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "the-builder-s-prompt-library": {
      "type": "http",
      "url": "https://buildersprompt.com/mcp"
    }
  }
}

README

The Builder's Prompt Library, as data

3,323 rubric-graded AI prompts for every stage of shipping software, from idea to launch. This is the open data behind buildersprompt.com, exported from the live catalog so you can grep it, vendor it, load it into your own tools, or point an agent at it.

Built by Alicia Dahling and Peter Lowe. Free to read, copy and adapt under CC BY 4.0 (see LICENSE): keep the attribution, do what you like with the prompts.

What is in here

PathWhat it is
data/prompts.jsonEvery published prompt as one JSON array (title, summary, stage, category, difficulty, tags, variables, tips, prompt text, writing score and grade, hand-reviewed flag, canonical URL).
data/by-stage/*.jsonThe same rows split by delivery stage: idea, design, build, test, secure, ship.
data/index.tsvOne line per prompt: stage, category, grade, score, slug, title. Good for grep and awk.
prompts/<stage>/<slug>.mdOne Markdown file per prompt with YAML front matter, for editors, static-site generators and retrieval pipelines.

Fill-in fields look like {{project_name}}. Replace them before you paste.

How the grades work

Every prompt is scored 0 to 100 on a five-part writing rubric (clarity, specificity, format, variables, actionability) and stamped A+ (90+), A (80 to 89), B (70 to 79) or C (60 to 69). Anything below 60 is not published. The grade describes how well the prompt is written, not how well a model answered it. Prompts that were actually run in ChatGPT, Claude and Gemini, with the graded answers, are shown on their pages at buildersprompt.com under "Tested in real AI models". Twenty-two prompts were read line by line by a human and carry hand_reviewed: true.

Use it from an AI assistant instead

The library is also a public MCP server. Point Claude, Cursor, ChatGPT or any MCP client at https://buildersprompt.com/mcp (Streamable HTTP, JSON-RPC 2.0, no key) and you get three read tools: search_prompts, get_prompt and list_stages.

Freshness

This export is regenerated from the live database. Each prompt's updated_at is the last edit on the site. If you need a specific prompt's current text, its url is the source of truth.

Attribution

Please credit "The Builder's Prompt Library, buildersprompt.com" and link back when you republish prompts from this set. That is the whole license.

Source: README.md at commit e9e31c7

Tools

3

search_prompts

Search prompts

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.

Parametersgradelimitqueryrequiredstage

get_prompt

Get prompt

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).

Parametersslugrequired

list_stages

List stages

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

Takes no parameters.

Version history

1
  1. v1.0.0LatestOct 25, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.