piper-plus: Skill for Claude Code

.claude/skills/release-prep/SKILL.md

release-prep is a skill for Claude Code from ayutaz/piper-plus. It costs 79 tokens per session (2,267 once invoked), scanned A, original, MIT.

A release preparation checker for projects published through package registries, which are services that distribute software packages. It compares versions in project files, reviews the unreleased changelog section, and checks the latest published versions.

In plain words
What is it for?
Use it to inspect versions for selected runtimes or all supported runtimes, compare them with the project’s release specification, check published versions on registries such as PyPI and npm, and prepare a changelog version update.
Why use it?
It gathers release information that would otherwise need to be checked across several files and registries. It presents suggested changelog changes for confirmation instead of applying them automatically.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is ayutaz/piper-plus's own configuration. It tells Claude Code how to work on piper-plus 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 piper-plus configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ayutaz/piper-plus. 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/ayutaz/piper-plus/dev/.claude/skills/release-prep/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ayutaz/piper-plus

Made for: Claude Code.

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-prep

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/ayutaz/piper-plus/release-prep"><img src="https://agentmods.dev/badge/skills/ayutaz/piper-plus/release-prep.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 2,267 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

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 →

  • medium Data Exfiltration · line 106
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 107
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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 $0.02267
Opus 5.5 $0.00032 $0.00907
Sonnet 5.5 $0.00016 $0.00453
Haiku 4.5 $0.00008 $0.00227

Measured 14d ago against content hash efc8240618b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

release-prep 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 14d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

allowed-tools: Bash(cat *) Bash(grep *) Bash(jq *) Bash(curl -s *) Bash(npm view *) Bash(git diff *) Bash(git log *) Bash(git status *) Bash(rg *) Read Edit Grep
.claude/skills/release-prep/SKILL.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Release Preparation Helper

リリース作業の forensic check と CHANGELOG 移行支援 を 1 つにまとめた skill。手動でやると忘れがちな以下 4 段階を 1 コマンドで通す:

  1. 各 manifest の 現在の version を一覧化 (7 runtime × 9 manifest)
  2. release-versions.toml の expected_prefix との照合
  3. CHANGELOG.md [Unreleased] の内容と、リリース時に必要な 昇格作業 の提案
  4. 公開 registry (PyPI / crates.io / NuGet / npm / Maven Central) の 最新公開 version 取得

実装は read-mostly — 変更提案は markdown diff 形式でユーザに提示し、 適用は明示確認後 (memory feedback_merge_caution.md に従う)。

引数

  • $ARGUMENTS 空: 全 runtime を一覧
  • python / rust / csharp / npm / swift / kotlin: 特定 runtime のみ
  • --target-version X.Y.Z: 次回リリース予定 version (CHANGELOG 移行提案に使う)

現在の状態

  • ブランチ: !git rev-parse --abbrev-ref HEAD
  • 引数: $ARGUMENTS
  • canonical truth: !grep -A1 "^\\[meta\\]" docs/spec/release-versions.toml | head -5

フェーズ 1: Manifest version 一覧

以下の 9 manifest を並列で Read し、現在の version を抽出して表化:

Runtime Manifest 抽出キー
Python (PyPI) VERSION ファイル全体
Rust (crates.io) src/rust/Cargo.toml [workspace.package].version
C# Core (NuGet) src/csharp/PiperPlus.Core/PiperPlus.Core.csproj <Version>
C# Cli (NuGet) src/csharp/PiperPlus.Cli/PiperPlus.Cli.csproj <Version>
npm synthesis src/wasm/openjtalk-web/package.json .version
npm g2p src/wasm/g2p/package.json .version
Swift synthesis Package.swift let version = 行
Swift G2P Package.swift let g2pVersion = 行
Kotlin Android android/gradle.properties VERSION_NAME=
# 例: rust workspace version
grep -A1 "^\[workspace.package\]" src/rust/Cargo.toml | grep "^version" | head -1

フェーズ 2: Expected prefix との照合

docs/spec/release-versions.toml を tomllib で読み、各 manifest の expected_prefix を取得。フェーズ 1 の実 version が prefix で始まるかを照合:

| Runtime | Manifest version | expected_prefix | Status |
|---------|------------------|-----------------|--------|
| Python  | `<local>`        | `<expected_prefix>` | ✓      |
| Rust    | `<local>`        | `<expected_prefix>` | ✓      |
| C# Core | `<local>`        | `<expected_prefix>` | ✓ / 要確認 |
| ...     | ...              | ...             | ...    |

Read the full file on GitHub · 183 lines

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. 14d ago Changed efc8240618b2
  2. 2mo ago First seen · 183 lines · 79 tokens per session scan A dd7b81e4fe3b

Subscribe to this mod's changes

release-prep is a skill published in the GitHub repository ayutaz/piper-plus (239 stars, last pushed today), licensed MIT. It adds 79 tokens to every session and 2,267 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.