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onlyboxes: Skill for Claude Code

.agents/skills/release-note-creator/SKILL.md

release-note-creator is a skill for Claude Code, Codex from Coooolfan/onlyboxes. It costs 31 tokens per session (195 once invoked), scanned A, original, AGPL-3.0.

A release-note workflow for Onlyboxes that determines the changes since earlier version tags and checks the notes against the project's writing rules.

In plain words
What is it for?
Use it to prepare and review release notes for Onlyboxes releases.
Why use it?
It helps ensure release notes cover the correct change period and follow the project's established format.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is Coooolfan/onlyboxes's own configuration. It tells Claude Code and Codex how to work on onlyboxes 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 onlyboxes configures →

not rated 54repo 11d ago A scan 31 tokens AGPL-3.0
View source ↗ Coooolfan/onlyboxes onlybox.es
Reuse

Borrowing it

Nothing to install: this file belongs to Coooolfan/onlyboxes. 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/Coooolfan/onlyboxes/main/.agents/skills/release-note-creator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Coooolfan/onlyboxes

Made for: Claude Code, Codex.

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-note-creator

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/coooolfan/onlyboxes/release-note-creator"><img src="https://agentmods.dev/badge/skills/coooolfan/onlyboxes/release-note-creator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 195 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.
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 $0.00031 $0.00195
Opus 5.5 $0.00012 $0.00078
Sonnet 5.5 $0.00006 $0.00039
Haiku 4.5 $0.00003 $0.00019

Measured 2mo ago against content hash ed41009a0a60, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

release-note-creator 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/git-tags.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/release-note-creator/SKILL.md · 20 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

3 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. 2mo ago First seen · 20 lines · 31 tokens per session scan A ed41009a0a60

Subscribe to this mod's changes

release-note-creator is a skill published in the GitHub repository Coooolfan/onlyboxes (54 stars, last pushed 11d ago), licensed AGPL-3.0. It adds 31 tokens to every session and 195 once invoked, about $0.0001 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.

Git and workflowReleasesWriting and docsmcpmcp-serversandbox
Related

release-note-creator compared with skills from other repositories

release-note-creator next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
release-note-creatorCoooolfan/onlyboxesSkill5411d agoAGPL-3.0A31Claude Code, Codex
release-changelog-harnessArenukvern/mcp_flutterSkill39520d agoMITA84Claude Code
polish-docs-metacyanheads/git-mcp-serverSkill2451mo agoApache-2.0A53Claude Code, Codex
hmem-releaseBumblebiber/hmemSkill246d agoMITA50Claude Code
release-managementsaidsef/mcp-github-pr-issue-analyserSkill62d agoApache-2.0A22Claude Code, Codex
repository-manager-workspace-releaseKnuckles-Team/repository-managerSkill3yesterdayMITA191Codex
release-versioningaethrox/doctrineSkill191mo agoMITA84Claude Code, Codex