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/mrocker/cardzero/cursorrulesgit clone --depth 1 https://github.com/mrocker/CardZeroWhat 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 | $0.00444 | $0.00444 |
| Opus 5 | $0.00222 | $0.00222 |
| Sonnet 5 | $0.00089 | $0.00089 |
| Haiku 4.5 | $0.00044 | $0.00044 |
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 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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 · 35 lines · 444 tokens per session scan A 9d36c8d4fd79
cursorrules is a cursor rule published in the GitHub repository mrocker/CardZero (4 stars, last pushed 3mo ago), with no licence file. It adds 444 tokens to every session, about $0.0022 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
cursor-agentpay-sdk
Use the AgentPay SDK skill pack for Link fiat setup, wallet setup, funding checks, policy recipes, cards, and transfers or approvals instead of guessing commands.
spend-lanes
Spend lanes — Cursor for review/specs, Claude Code for all implementation. Stops frontier token burn on multi-file code work in Cursor.
sui-platform
Sui platform patterns — Address Balances (SIP-58) make one address concurrent, gasless stablecoin transfers remove the SUI-for-gas wall, plus the eligibility gotchas that cause misleading failures. Full detail in .claude/skills/t2000-sui-platform/.
cursorrules
When working in this repository, follow the conventions below. These rules also apply when an outside developer copies this file into their own project to integrate agenticpay (drop it at their repo root as .cursorrules).
ai-agents-archive
Optional reference for third-party AI Agents Archive desk — never auto-upload or spend; user must approve filing or unlock.
angular-20
This rule provides comprehensive best practices and coding standards for Angular development, focusing on modern TypeScript, standalone components, signals, and performance optimizations.