ethereumjs-monorepo: Skill for Cursor

.cursor/skills/release-round/SKILL.md

release-round is a skill for Cursor from ethereumjs/ethereumjs-monorepo. It costs 72 tokens per session (2,050 once invoked), scanned A, original, no licence file.

A guide for coordinating an EthereumJS npm release, including version changes, publishing, verification, and announcements.

In plain words
What is it for?
It helps prepare or ship releases and bump related EthereumJS packages.
Why use it?
It breaks a release into six stages with human approval points for actions such as publishing.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is ethereumjs/ethereumjs-monorepo's own configuration. It tells Cursor how to work on ethereumjs-monorepo itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ethereumjs-monorepo configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ethereumjs/ethereumjs-monorepo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ethereumjs/ethereumjs-monorepo/master/.cursor/skills/release-round/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ethereumjs/ethereumjs-monorepo

Made for: Cursor.

Wrote 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.

agentmods badge for release-round

README.md
[![agentmods](https://agentmods.dev/badge/skills/ethereumjs/ethereumjs-monorepo/release-round/github.svg)](https://agentmods.dev/skills/ethereumjs/ethereumjs-monorepo/release-round)
Your own site
<a href="https://agentmods.dev/skills/ethereumjs/ethereumjs-monorepo/release-round"><img src="https://agentmods.dev/badge/skills/ethereumjs/ethereumjs-monorepo/release-round/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.

agentmods 80×15 button for release-round

Your own site · 80×15
<a href="https://agentmods.dev/skills/ethereumjs/ethereumjs-monorepo/release-round"><img src="https://agentmods.dev/badge/skills/ethereumjs/ethereumjs-monorepo/release-round.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,050 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
SkillSpector: 1 finding, up to low

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • low Excessive Agency · line 46
    Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.
    Fix: Limit the skill's scope to its documented purpose. Remove instructions that enable the agent to perform actions outside its stated functionality.
How audits are shown
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.02050
Opus 5 $0.00036 $0.01025
Sonnet 5 $0.00014 $0.00410
Haiku 4.5 $0.00007 $0.00205

Measured 9d ago against content hash d43f4975172d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

release-round 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 9d 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.

.cursor/skills/release-round/SKILL.md · 179 lines

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.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 9d ago First seen · 179 lines · 72 tokens per session scan A d43f4975172d

Subscribe to this mod's changes

release-round is a skill published in the GitHub repository ethereumjs/ethereumjs-monorepo (2,755 stars, last pushed 18d ago), with no licence file. It adds 72 tokens to every session and 2,050 once invoked, about $0.0004 per session on Opus 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 2026-09-03.

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