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katana-markdown-linter: Skill for Claude Code

.agent/skills/impl-release/SKILL.md

impl-release is a skill for Claude Code, Codex from HiroyukiFuruno/katana-markdown-linter. It costs 79 tokens per session (355 once invoked), scanned A, original, MIT.

A release workflow for implementing and preparing a specified software version, such as v0.12.2. It covers implementation, checks, release preparation, pull-request work, review, publishing, and follow-up cleanup.

In plain words
What is it for?
Use it when you need to carry out an `/impl-release vX.Y.Z` release. It checks the current Git changes first and requires the release process to be repaired if it fails.
Why use it?
It organizes the many steps of a versioned release so problems are investigated and fixed within the same workflow.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

This is HiroyukiFuruno/katana-markdown-linter's own configuration. It tells Claude Code and Codex how to work on katana-markdown-linter 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 katana-markdown-linter configures →

not rated 0repo yesterday A scan 79 tokens original MIT
View source ↗ HiroyukiFuruno/katana-markdown-linter
Reuse

Borrowing it

Nothing to install: this file belongs to HiroyukiFuruno/katana-markdown-linter. 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/HiroyukiFuruno/katana-markdown-linter/master/.agent/skills/impl-release/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/HiroyukiFuruno/katana-markdown-linter

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 impl-release

README.md
[![agentmods](https://agentmods.dev/badge/skills/hiroyukifuruno/katana-markdown-linter/impl-release/github.svg)](https://agentmods.dev/skills/hiroyukifuruno/katana-markdown-linter/impl-release)
Your own site
<a href="https://agentmods.dev/skills/hiroyukifuruno/katana-markdown-linter/impl-release"><img src="https://agentmods.dev/badge/skills/hiroyukifuruno/katana-markdown-linter/impl-release/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 impl-release

Your own site · 80×15
<a href="https://agentmods.dev/skills/hiroyukifuruno/katana-markdown-linter/impl-release"><img src="https://agentmods.dev/badge/skills/hiroyukifuruno/katana-markdown-linter/impl-release.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 355 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 original 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 $0.00079 $0.00355
Opus 5.5 $0.00032 $0.00142
Sonnet 5.5 $0.00016 $0.00071
Haiku 4.5 $0.00008 $0.00036

Measured 2mo ago against content hash 0e7dfd9f4c2d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

impl-release 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.

.agent/skills/impl-release/SKILL.md · 22 lines

What it actually says

impl-release

このスキルは、/impl-release vX.Y.Z として扱うリリース実装ワークフローの入口です。

実行ルール

  1. ユーザー指定のバージョン（例: v0.12.2）を対象にする。
  2. 詳細手順は .agent/workflows/impl-release.md を正として読み込む。
  3. OpenSpec 実装、検証、リリース準備、PR 作成、自己レビュー、公開、事後整理まで進める。
  4. 作業開始前に必ず git status --short --branch を確認し、既存差分と関心事を混ぜない。
  5. just VERSION=vX.Y.Z release が失敗した場合、代替の tag / publish コマンドで迂回しない。状態を調査し、修正してから同じフローへ戻る。

注意

  • workflows/impl-release.md は手順書であり、Agent のスキル呼び出し対象ではない。
  • / から呼び出したい場合は、この impl-release スキルを使う。
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 · 22 lines · 79 tokens per session scan A 0e7dfd9f4c2d

Subscribe to this mod's changes

impl-release is a skill published in the GitHub repository HiroyukiFuruno/katana-markdown-linter (0 stars, last pushed yesterday), licensed MIT. It adds 79 tokens to every session and 355 once invoked, about $0.0003 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 2026-08-31.

Git and workflowReleases
Related

impl-release compared with skills from other repositories

impl-release next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
impl-releaseHiroyukiFuruno/katana-markdown-linterSkill0yesterdayMITA79Claude Code, Codex
release-announcementpaperclipai/paperclipSkill111kyesterdayMITA42Claude Code, Codex
releasethedotmack/claude-memSkill114kyesterdayApache-2.0A13Claude Code
release-notesphuryn/pm-skillsSkill28k8d agoMITA57Claude Code
multi-agent-release-managerchromium/chromiumSkill25kyesterdayBSD-3-ClauseA27Claude Code, Codex
pack-submitaeonfun/aeonSkill788yesterdayMITA27Claude Code, Codex
updater_guidesiddsachar/row-botSkill1.7kyesterdayApache-2.0A22Claude Code, Codex