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/perniemann/pncore/pn-babylongit clone --depth 1 https://github.com/perniemann/pnCoreWrote 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/perniemann/pncore/pn-babylon)<a href="https://agentmods.dev/rules/perniemann/pncore/pn-babylon"><img src="https://agentmods.dev/badge/rules/perniemann/pncore/pn-babylon.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00294 |
| Opus 5 | $0.00000 | $0.00147 |
| Sonnet 5 | $0.00000 | $0.00059 |
| Haiku 4.5 | $0.00000 | $0.00029 |
Grade A, and why
pn-babylon 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 4d 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
Babylon.js / 3D rules
- Prefer a clear scene hierarchy and naming (e.g. groups for logical parts) so objects can be found and disposed correctly.
- Dispose of meshes, materials, and textures when no longer needed to avoid memory leaks.
- Use the scene's dispose or engine.dispose when switching scenes or unmounting.
- Avoid unnecessary draw calls and heavy per-frame allocations; reuse objects and buffers where it helps performance.
- Keep game logic (state, rules, scoring) separate from render/input where possible for testability and clarity.
- NodeMaterial: Use
NodeMaterialwith the Node Editor for visual shader authoring; avoid raw GLSL when NodeMaterial covers the use case. - Havok physics: Initialize with
await HavokPhysics()before creatingPhysicsAggregate; reuseHavokPlugininstance across scenes; dispose aggregates before scene dispose. - Inspector: Enable
scene.debugLayer.show()in development; remove or gate behind a flag before production builds. - WebXR in Babylon: Use
WebXRDefaultExperience.CreateAsync()for VR/AR sessions; check feature support viafeaturesManager.enableFeature()before use.
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.
- 4d ago First seen · 18 lines · 0 tokens per session scan A 3e35d4fd9a0c
pn-babylon is a cursor rule published in the GitHub repository perniemann/pnCore (0 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 294 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.
Other cursor rules, from other repositories
t-800-mandatory-routing
ОБЯЗАТЕЛЬНО: создание и правка субагентов, skills, commands, rules, hooks — только через T-800 Agent (цех Skynet). Сначала intake? + scout + research DEEP + brain-lead, затем t-800-factory. Не собирать артефакты ad-hoc в main chat.
t-800-operator-routing
Маршрутизация к T-800 Operator для русскоязычных новичков: первый запуск Cursor, вопросы про Agent/Ask/Plan/Debug, rules, skills, MCP, автоматизацию, просьбы объяснить «на пальцах». Делегируй Task(t-800-operator), не дублируй длинные объяснения в основном чате.
t-800-factory-routing
Маршрутизация к T-800 Factory: создание субагентов, проектирование плагина, интеграция агентов, реестр, граф связей, масштабирование 100+ agents. Делегируй Task(t-800-factory), не создавай агентов ad-hoc в main chat.
t-800-knowledge-refresh
Обновление базы знаний T-800: когда появились новые функции Cursor, устарел manifest (>30 дней), есть UPDATE-QUEUE.md с pending, пользователь спрашивает про фичу которой нет в KB, или после changelog Cursor. В проекте Cursor Junior делегируй обслуживание Task(t-800-maintainer).
t-800-cloud-hub-routing
Маршрутизация Cloud Hub Automation Setup: при /t800-cloud-hub, /t800-hub-setup или правках /cloud-hub/ → Task(t-800-cloud-hub-lead). Не always-on.
codesynapse-cli
Use this rule to answer codebase architecture questions, trace dependencies, find callers/callees, calculate blast radius, and explore the code graph. Triggers on: "how does X work", "what handles Y", "where is Z defined", "explain the mechanism", "who calls", "blast radius", "shortest path", "trace request flow"…