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.
git clone --depth 1 https://github.com/ethereumjs/ethereumjs-monorepoWrote 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/ethereumjs/ethereumjs-monorepo/code-conventions)<a href="https://agentmods.dev/rules/ethereumjs/ethereumjs-monorepo/code-conventions"><img src="https://agentmods.dev/badge/rules/ethereumjs/ethereumjs-monorepo/code-conventions/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/ethereumjs/ethereumjs-monorepo/code-conventions"><img src="https://agentmods.dev/badge/rules/ethereumjs/ethereumjs-monorepo/code-conventions.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 | $0.00000 | $0.01050 |
| Opus 5.5 | $0.00000 | $0.00420 |
| Sonnet 5.5 | $0.00000 | $0.00210 |
| Haiku 4.5 | $0.00000 | $0.00105 |
Grade A, and why
code-conventions scanned grade A with 1 finding 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
- Import Node built-ins (`node:fs`, `fs`, `path`, `crypto`, `stream`, `os`, `readline`, `child_process`, `http`, `https`, `util`, …). 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.
- 4d ago Changed 7cf1539c016d
- 14d ago Changed · +20 lines 5f6eca0b9d61
- 1mo ago First seen · 54 lines · 0 tokens per session scan A d698385d2800
code-conventions is a cursor rule published in the GitHub repository ethereumjs/ethereumjs-monorepo (2,758 stars, last pushed today), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,050 tokens. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other cursor rules, from other repositories
no-family-vocabulary-in-framework
The framework domain (packages/1-framework) carries no family- or target-specific vocabulary — types, fields, hooks, or strategy values — and, outside the CLI and the PSL parser's grammar names, no Prisma version name before 8. Enforced by the no-family-vocabulary Biome plugin plus the lint:ratchets ratchet.
no-pull-request-target
Never add pullrequesttarget to GitHub Actions workflows; CI lint enforces it via scripts/lint-workflow-triggers.mjs.
fix-the-class-not-the-instance
A review comment names a class of defect, not a point-fix. Sweep the whole diff for the class before replying; fix every instance in one round.
review-scope-overrides
Honor explicitly provided base branches in review artifacts.
cursor-markdown-file-links
Review markdown in Cursor — path-only file links (no :line in link targets).
code-quality
../../.agents/rules/code-quality.md.