Borrowing it
Nothing to install: this file belongs to MauricioPerera/KDD. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/MauricioPerera/KDD/main/.cursorrulesgit clone --depth 1 https://github.com/MauricioPerera/KDDWrote 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/mauricioperera/kdd/cursorrules)<a href="https://agentmods.dev/rules/mauricioperera/kdd/cursorrules"><img src="https://agentmods.dev/badge/rules/mauricioperera/kdd/cursorrules/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/mauricioperera/kdd/cursorrules"><img src="https://agentmods.dev/badge/rules/mauricioperera/kdd/cursorrules.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 | $0.00194 | $0.00194 |
| Opus 5.5 | $0.00078 | $0.00078 |
| Sonnet 5.5 | $0.00039 | $0.00039 |
| Haiku 4.5 | $0.00019 | $0.00019 |
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 1mo 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- windsurfrules — 97% identical, 4 lines differ
What it actually says
Reglas para Cursor en este repositorio
Este repo usa Knowledge-Driven Development (KDD). Las reglas completas para cualquier agente de IA (incluido Cursor) estan en .agents/AGENTS.md — leelo antes de escribir codigo.
Resumen minimo: antes de implementar, lee knowledge/contracts/<task>.md
(el task contract), su oraculo congelado en tests/ (NO lo reescribas —
esta sellado por tests_sha256), y respeta touch_only (perimetro de
archivos declarado). Verificacion completa (niveles de gate, comandos
exactos): knowledge/validacion.md.
No dupliques este contenido en otro lado: si .agents/AGENTS.md cambia,
este archivo puede quedar desactualizado — ante duda, .agents/AGENTS.md
manda.
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.
- 1mo ago First seen · 16 lines · 194 tokens per session scan A 071856e60668
cursorrules is a cursor rule published in the GitHub repository MauricioPerera/KDD (11 stars, last pushed today), licensed MIT. It adds 194 tokens to every session, about $0.0008 per session on Opus 5.5. 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
frontend-architecture
Cursor rule "frontend-architecture" from tomasz-tomczyk/crit, covering frontend architecture, two-paradigm page fork, module pattern, shared modules (used by both modes) and code-review modules (used only by code-review mode).
proxy-auth-transport
Every CLI command or browser UI action that calls a crit-web API must work in both modes.
frontend-js
Cursor rule "frontend-js" from tomasz-tomczyk/crit, covering frontend js rules (semantic — eslint handles syntax/style), dom & events, state management, persisted settings (cookies, not localstorage) and error handling.
go
Cursor rule "go" from tomasz-tomczyk/crit, covering go code rules (semantic — linters handle syntax/style), struct & state integrity, code organization, git operations and daemon/server.
frontend-css
Cursor rule "frontend-css" from tomasz-tomczyk/crit, covering css rules, responsive & touch and selectors.
compression-safety
Cursor rule "compression-safety" from yvgude/lean-ctx, covering compression safety — prevent lean-ctx marker corruption, the problem, rules for all agents, never write compressed content to files and file restoration commands.