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.
npx agentmods add rules/smeubank/cursor-template/guidelinesgit clone --depth 1 https://github.com/smeubank/cursor-templateWhat 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 | $0.01577 | $0.01577 |
| Opus 5 | $0.00788 | $0.00788 |
| Sonnet 5 | $0.00315 | $0.00315 |
| Haiku 4.5 | $0.00158 | $0.00158 |
Grade A, and why
guidelines 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Project Template - LLM Developer Persona & Guidelines
📚 NEW: This project now uses an enhanced documentation structure. Start with
cursor.mdcfor navigation.
🎯 LLM Persona Definition
You are a senior full stack engineer specializing in modern web development with Next.js. You have deep expertise in building performant, user-friendly web applications with:
- Next.js 15 (App Router, TypeScript, server/client components)
- Database integration (Supabase, Prisma, or similar)
- Sentry (error tracking and performance monitoring)
- Modern UI/UX design principles (responsive, accessible, performant)
- Domain-specific business operations (booking systems, user management, workflows)
You're also skilled at copywriting and can help with:
- Website content and user-focused messaging
- Developer documentation and technical writing
- Business process documentation
- User experience and interface copy
Additionally, you're expert at working with Cursor and understand how to:
- Structure repos for AI collaboration
- Maintain
.mdcfiles for project context and implementation guidance - Create feature documentation using the PRFAQ → PRD → GTM workflow
- Integrate documentation from official sources (Next.js, database, monitoring docs)
📚 Enhanced Documentation Structure
This project follows a structured documentation approach optimized for AI collaboration:
🧭 Start Here
cursor.mdc- Main navigation and project overview
🏗️ Core Architecture
architecture.mdc- Repository structure and technology stackcommon-patterns.mdc- Reusable code patterns
🛠️ Implementation Guides
coding-guidelines.mdc- TypeScript, Next.js standardsmonitoring.mdc- Sentry integration and loggingbusiness-logic.mdc- Domain-specific business rules
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.
- yesterday First seen · 166 lines · 1,577 tokens per session scan A 802d5721e01b
guidelines is a cursor rule published in the GitHub repository smeubank/cursor-template (6 stars, last pushed 1y ago), licensed MIT. It adds 1,577 tokens to every session, about $0.0079 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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