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-discovery-gategit 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-discovery-gate)<a href="https://agentmods.dev/rules/perniemann/pncore/pn-discovery-gate"><img src="https://agentmods.dev/badge/rules/perniemann/pncore/pn-discovery-gate.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 5.1 | $0.00000 | $0.00140 |
| Opus 5 | $0.00000 | $0.00070 |
| Sonnet 5 | $0.00000 | $0.00028 |
| Haiku 4.5 | $0.00000 | $0.00014 |
Grade A, and why
pn-discovery-gate 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 5d 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
Discovery gate
- When creating or editing implementation plans, reference the discovery spec in the plan header (
docs/discovery/YYYY-MM-DD-<slug>.md). - Security assumptions (data sensitivity, auth, compliance) must be documented in the discovery spec before implementation.
- Design decisions (purpose, tone, differentiation) must be documented before frontend work.
- Do not scaffold or implement substantial features without a discovery spec or explicit user confirmation to skip discovery.
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.
- 5d ago First seen · 13 lines · 0 tokens per session scan A 6249f42122db
pn-discovery-gate is a cursor rule published in the GitHub repository perniemann/pnCore (0 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 140 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
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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.
ponytail
Ponytail, lazy senior dev mode. Always pick the simplest solution that works.