Borrowing it
Nothing to install: this file belongs to MarcoPorcellato/matryca-plumber. 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/MarcoPorcellato/matryca-plumber/main/.cursorrulesgit clone --depth 1 https://github.com/MarcoPorcellato/matryca-plumberWrote 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/marcoporcellato/matryca-plumber/cursorrules)<a href="https://agentmods.dev/rules/marcoporcellato/matryca-plumber/cursorrules"><img src="https://agentmods.dev/badge/rules/marcoporcellato/matryca-plumber/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/marcoporcellato/matryca-plumber/cursorrules"><img src="https://agentmods.dev/badge/rules/marcoporcellato/matryca-plumber/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 | $0.00366 | $0.00366 |
| Opus 5.5 | $0.00146 | $0.00146 |
| Sonnet 5.5 | $0.00073 | $0.00073 |
| Haiku 4.5 | $0.00037 | $0.00037 |
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 2mo 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
Matryca Plumber — Cursor rules index
Load task-specific rules from .cursor/rules/. Contributor router: AGENTS.md.
| Rule | Purpose |
|---|---|
00-karpathy-agent-behavior.mdc |
Always — investigate, minimal diff, run checks |
01-core-paradigm.mdc |
Logseq OG blocks/properties → docs/openspec/logseq-paradigm.md |
02-python-standards.mdc |
*.py — uv, mypy strict, Pydantic |
03-logseq-api.mdc |
Headless file I/O default |
04-spatial-parser.mdc |
src/graph/, logseq_matryca_parser |
05-release-preparation.mdc |
Semver release (on request) |
06-auto-changelog.mdc |
CHANGELOG.md after user-visible changes |
07-env-example.mdc |
.env.example sync |
08-github-workflow-standards.mdc |
GitHub issues/PRs (on request) |
09-github-identity-marco-porcellato.mdc |
Always — divieto assoluto Cursor/AI su GitHub |
10-tooling-static-analysis-policy.mdc |
Vendor-agnostic public repo policy |
11-prompt-maintainer.mdc |
Prompt fragments, Tier-1 builders, MCP docstrings (on request) |
12-clean-code-architecture.mdc |
Clean Code & Clean Architecture — repo-wide boundaries, env_parse, layer tests |
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.
- 2mo ago First seen · 20 lines · 366 tokens per session scan A b5cf05f76883
cursorrules is a cursor rule published in the GitHub repository MarcoPorcellato/matryca-plumber (100 stars, last pushed yesterday), licensed Apache-2.0. It adds 366 tokens to every session, about $0.0015 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 2026-08-30.
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