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worldlabs-mcp: Cursor rule for Windsurf

.windsurfrules

windsurfrules is a cursor rule for Windsurf from sandraschi/worldlabs-mcp. It costs 176 tokens per session, scanned A, a copy of cursorrules, MIT.

Rules for using a World Labs service that creates and manages generative 3D worlds, images, and related world-library items. They describe which tools to call, how to track asynchronous generation, and how to handle keys.

In plain words
What is it for?
Use them when generating worlds from text or images, checking generation status, browsing the world library, and storing generated-world metadata.
Why use it?
They give the coding agent a consistent sequence for checking existing worlds, monitoring new generations, and recording failures and results.

Cursor rule for Windsurf

Written for Windsurf: a Windsurf rule.

This is sandraschi/worldlabs-mcp's own configuration. It tells Windsurf how to work on worldlabs-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything worldlabs-mcp configures →

not rated 24repo today A scan 176 tokens copy · 86% MIT
View source ↗ sandraschi/worldlabs-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to sandraschi/worldlabs-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sandraschi/worldlabs-mcp/main/.windsurfrules
Clone the repo
git clone --depth 1 https://github.com/sandraschi/worldlabs-mcp

Made for: Windsurf.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for windsurfrules

README.md
[![agentmods](https://agentmods.dev/badge/rules/sandraschi/worldlabs-mcp/windsurfrules/github.svg)](https://agentmods.dev/rules/sandraschi/worldlabs-mcp/windsurfrules)
Your own site
<a href="https://agentmods.dev/rules/sandraschi/worldlabs-mcp/windsurfrules"><img src="https://agentmods.dev/badge/rules/sandraschi/worldlabs-mcp/windsurfrules/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for windsurfrules

Your own site · 80×15
<a href="https://agentmods.dev/rules/sandraschi/worldlabs-mcp/windsurfrules"><img src="https://agentmods.dev/badge/rules/sandraschi/worldlabs-mcp/windsurfrules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 176 This file is loaded in full into every session.
When invoked 176 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 86% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00176 $0.00176
Opus 5.5 $0.00070 $0.00070
Sonnet 5.5 $0.00035 $0.00035
Haiku 4.5 $0.00018 $0.00018

Measured 2mo ago against content hash 132227fa906c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

windsurfrules scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

86% identical to cursorrules — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.windsurfrules · 20 lines

What it actually says

World Labs MCP - Windsurf Rules

You are working with a World Labs MCP server that generates and manages generative 3D worlds, sparks, painting portals, and a world library.

  • Use generate_world_from_text / generate_world_from_image for new worlds
  • Poll get_operation for generation status (generations are async)
  • Use list_worlds / get_world for library queries
  • Never hardcode API keys; use env vars (WORLDLABS_*)

Session Context (World Labs MCP)

Before starting work:

  1. Check the world library: list_worlds(limit=10)
  2. Poll recent generations: get_operation(operation_id="<latest>")

At end of work:

  • Store generated world metadata in the library
  • Note generation failures with their operation IDs
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 20 lines · 176 tokens per session scan A 132227fa906c

Subscribe to this mod's changes

windsurfrules is a cursor rule published in the GitHub repository sandraschi/worldlabs-mcp (24 stars, last pushed today), licensed MIT. It adds 176 tokens to every session, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to cursorrules, differing in 2 lines, and is treated as a copy.

Creative and mediaGame developmentmarblemcp-serverwebappworldlabs
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