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/cmnemoi/cursor-rules/900-project-specificgit clone --depth 1 https://github.com/cmnemoi/cursor-rulesWhat 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 | $0.00000 | $0.00738 |
| Opus 5 | $0.00000 | $0.00369 |
| Sonnet 5 | $0.00000 | $0.00148 |
| Haiku 4.5 | $0.00000 | $0.00074 |
Grade A, and why
900-project-specific 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 — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Project-Specific Rules Template
1.0.0
Context
- This file is used as specification only for this project
Recommendation
Languages
- For code and logs: English
- For labels: English language in UI and errors
Overall Architecture
- Project structure: Monorepo with API (PHP/Symfony) and App (Vue.js frontend)
- Architectural patterns used: Domain-Driven Design, Clean Architecture, Command and Query Segregation, and in-memory object repositories for testing
Authentication
- Authentication mechanisms used: JWT Authentication with Lexik JWT Bundle
- External authentication: Integration with Eternaltwin OAuth
State Management
- State management approach: Vuex
- Organization of stores: Feature-based stores
API and Services
- Backend structure: Domain-first organization with bounded contexts in separate folders
- API conventions: RESTful API with API Platform
Testing
- Testing strategy: Unit tests first with in-memory repositories, functional tests when needed
- Testing frameworks: Codeception for backend, Vitest for frontend
- Test patterns: Given-When-Then and test doubles using in-memory repositories
Custom for this project
Backend (PHP/Symfony)
Domain Organization
- The codebase is organized by domain bounded contexts (Action, Alert, Chat, Communications, Daedalus, Disease, Equipment, Game, Hunter, etc.)
- Each domain has its own set of entities, repositories, services, and interfaces following DDD principles
Testing
- Unit tests use in-memory repositories and service implementations
- Functional tests use Codeception
- Tests follow the Given-When-Then pattern with descriptive method names
Controllers
- API controllers handle HTTP requests and return responses
- Controllers interact with application services that encapsulate domain logic
Frontend (Vue.js)
Structure
- Vue 3 with TypeScript
- Phaser for game-related functionality
- Vue Router for navigation
- Vuex for state management
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 · 100 lines · 738 tokens per session scan A 71ca37ff426a
900-project-specific is a cursor rule published in the GitHub repository cmnemoi/cursor-rules (2 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 738 tokens. 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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