agentforge-mcp is the Model Context Protocol server for AgentForge. One tool, one job: turn a vague request into a sharp one.

Why

You know the loop: you ask your coding agent for something, it misreads the half you didn't spell out, you correct it, it breaks something else, you re-explain. The fix isn't a smarter agent — it's a sharper prompt.

AgentForge does the prompt engineering for you. Give it "add a dark mode toggle that persists" and it:

• extracts the real requirements — the edge cases, the acceptance criteria, the things you'd have forgotten to mention;
• formats for your specific agent — Claude Code wants file:line references, Cursor wants directives, Aider wants tight context;
• quality-checks before returning — every prompt is scored across 12 dimensions before it leaves the engine.

Harness engineering is having a moment — but prompt engineering matters more in the coding-agent era, not less. Tested across 1,000+ real coding cases, projects with AgentForge in the loop reached a deployable state 147% faster.

Quick start

No install — it runs through npx.

1. Get an API key. Sign in at agentforge.sciscale.org, open API keys, and create one. The key is shown once — copy it.

2. Add it to your agent.

Claude Code:

claude mcp add agentforge --env AGENTFORGE_API_KEY=af_your_key -- npx -y agentforge-mcp

Cursor / Windsurf / Claude Desktop — add to your MCP config (~/.cursor/mcp.json, ~/.codeium/windsurf/mcp_config.json, etc.):

{
  "mcpServers": {
    "agentforge": {
      "command": "npx",
      "args": ["-y", "agentforge-mcp"],
      "env": { "AGENTFORGE_API_KEY": "af_your_key" }
    }
  }
}

3. Use it. Ask your agent naturally — "refine this with AgentForge, then build it: add a dark mode toggle that persists."

The tool — agentforge_refine_prompt

Argument	Default
request	—	Your task in plain language (1–4000 chars). Rough is fine.
target_tool	claude-code	claude-code, codex, cursor, aider, continue, windsurf, kimi, generic
style	plan-first	plan-first, direct-edit, explore-first

Returns the refined prompt, plus its Quality Engine score and your remaining daily usage.

Free vs Pro

	Free	Pro
Refinements	3 / day	Unlimited
Quality Engine	scored across 12 dimensions	scored + auto-refined until it passes ≥ 90

Or use the web app

Don't want to wire up an MCP server at all? The same engine — same Quality Engine, same per-account Pro — runs right in your browser at agentforge.sciscale.org. No install, no key, no config.

The AgentForge web app

Paste a request, pick your target tool, copy the prompt — generation history and advanced modes included:

How it works

agentforge-mcp is a thin client — no engine logic ships in this package. Your request goes to the AgentForge API, the hosted engine does the extraction, formatting, and quality-checking, and the prompt comes back. The engine keeps improving without you ever updating this package.

Configuration

Variable	Default
AGENTFORGE_API_KEY	—	Required. Your API key.
AGENTFORGE_API_URL	https://agentforge.sciscale.org/api/v1/refine	Override the endpoint (rarely needed).

Develop

npm install
npm run build      # tsc -> dist/
node dist/index.js # runs on stdio

License

MIT — see LICENSE.