Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/robotostudio/turbo-start-sanityWrote 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.
[](https://agentmods.dev/rules/robotostudio/turbo-start-sanity/ultracite-migration)<a href="https://agentmods.dev/rules/robotostudio/turbo-start-sanity/ultracite-migration"><img src="https://agentmods.dev/badge/rules/robotostudio/turbo-start-sanity/ultracite-migration/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.
<a href="https://agentmods.dev/rules/robotostudio/turbo-start-sanity/ultracite-migration"><img src="https://agentmods.dev/badge/rules/robotostudio/turbo-start-sanity/ultracite-migration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00014 | $0.01908 |
| Opus 5 | $0.00007 | $0.00954 |
| Sonnet 5 | $0.00003 | $0.00382 |
| Haiku 4.5 | $0.00001 | $0.00191 |
Grade A, and why
ultracite-migration scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
const redirects = await client.fetch(queryRedirects); How it starts
The opening of the file, as written. The whole thing — 339 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ultracite Migration Guide
Quick reference for migrating Turbostart monorepo projects from ESLint/Prettier to Ultracite (Biome preset).
Project Structure Assumed:
/
├── apps/
│ ├── studio/ # Sanity CMS
│ └── web/ # Next.js app
├── packages/
│ ├── eslint-config/ # To be deleted
│ └── ui/ # Shared components
├── turbo.json
└── package.json
1. Install Dependencies
pnpm add -D -w ultracite @biomejs/biome@latest
2. Create Root Configuration
Create biome.jsonc:
{
"$schema": "https://biomejs.dev/schemas/2.2.5/schema.json",
"extends": ["ultracite"]
}
3. Configure Cursor
Create/update .vscode/settings.json:
{
"editor.defaultFormatter": "biomejs.biome",
"editor.formatOnSave": false,
"editor.formatOnPaste": false,
"editor.codeActionsOnSave": {
"source.fixAll.biome": "explicit",
"source.organizeImports.biome": "explicit"
},
"[typescript]": {
"editor.defaultFormatter": "biomejs.biome"
},
"[typescriptreact]": {
"editor.defaultFormatter": "biomejs.biome"
},
"[javascript]": {
"editor.defaultFormatter": "biomejs.biome"
},
"[jsonc]": {
"editor.defaultFormatter": "biomejs.biome"
},
"[json]": {
"editor.defaultFormatter": "biomejs.biome"
}
}
Important: Set formatOnSave: false and use codeActionsOnSave to prevent double-formatting issues.
4. Update All package.json Scripts
Replace in root and all workspace packages:
{
"scripts": {
"lint": "npx ultracite lint",
"format": "npx ultracite fix"
}
}
5. Remove Old Dependencies & Configs
Root (package.json)
Remove from devDependencies:
@workspace/eslint-configprettier
apps/studio/package.json
Remove from devDependencies:
eslinteslint-plugin-importeslint-plugin-prettiereslint-plugin-simple-import-sortprettiertypescript-eslint
Delete files:
apps/studio/eslint.config.mjsapps/studio/prettier.config.mjs
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.
- 10d ago First seen · 339 lines · 14 tokens per session scan A d609105fb356
ultracite-migration is a cursor rule published in the GitHub repository robotostudio/turbo-start-sanity (176 stars, last pushed today), licensed MIT. It adds 14 tokens to every session and 1,908 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other cursor rules, from other repositories
test-running
When running tests, use the --watch false flag to avoid watch mode.
docs
This file provides guidelines for working with the documentation in the /docs directory.
e2e-testing
E2E Flow Tests setup and debugging guide.
codex-premium-website-skills
Apply Codex Skills standards to frontend, website, motion, accessibility, QA, agent reasoning, and handoff work.
context-management
Context window management — prevents AI from losing track during long sessions.
middleware-auth
Next.js middleware auth — prevents auth logic being placed in middleware instead of route handlers.