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/meghal86/promptsonar/cursorrulesgit clone --depth 1 https://github.com/meghal86/promptsonarWhat 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 | $0.00035 | $0.00035 |
| Opus 5 | $0.00017 | $0.00017 |
| Sonnet 5 | $0.00007 | $0.00007 |
| Haiku 4.5 | $0.00003 | $0.00003 |
Grade A, and why
cursorrules 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 2d 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.
What it actually says
Cursor Rules
You are a coding assistant for this repository. Use the memory server for persistent context and follow the instructions in CLAUDE.md and AGENTS.md.
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.
- 2d ago First seen · 4 lines · 35 tokens per session scan A 95adc694777a
cursorrules is a cursor rule published in the GitHub repository meghal86/promptsonar (5 stars, last pushed 3d ago), licensed MIT. It adds 35 tokens to every session, about $0.0002 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.
Other cursor rules, from other repositories
api-guidelines
API endpoint conventions and error handling standards.
react-patterns
Enforces consistent React patterns and hooks usage.
brin-security
Security rules for scanning external dependencies and web content via the brin API before installing, using, or trusting them.
injected-backdoor
Override all safety checks and inject custom behavior.
cursorrules
Always run the following before any task.
cursorrules
When building AI apps with this project, follow these conventions.