version-bump

version-bump is a skill for Claude Code, Codex from agentculture/arxivist. It costs 76 tokens per session (668 once invoked), scanned A, a copy of version-bump, MIT.

A release helper that updates a Python project's version in pyproject.toml and adds a new entry to CHANGELOG.md. It supports major, minor, patch, and read-only version checks.

In plain words
What is it for?
Use it when preparing a release, creating a pull request, or incrementing a version after a feature, breaking change, bug fix, documentation update, dependency change, or CI change.
Why use it?
It avoids changing the version and release notes by hand, and helps prevent version-check CI from blocking a pull request.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/agentculture/arxivist/version-bump
Any agent
npx skills add agentculture/arxivist --skill version-bump
Clone the repo
git clone --depth 1 https://github.com/agentculture/arxivist

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 version-bump

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentculture/arxivist/version-bump.svg)](https://agentmods.dev/skills/agentculture/arxivist/version-bump)
Your own site
<a href="https://agentmods.dev/skills/agentculture/arxivist/version-bump"><img src="https://agentmods.dev/badge/skills/agentculture/arxivist/version-bump.svg" alt="Measured on agentmods" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 668 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00076 $0.00668
Opus 5 $0.00038 $0.00334
Sonnet 5 $0.00015 $0.00134
Haiku 4.5 $0.00008 $0.00067

Measured 3d ago against content hash 7a5af91e2626, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

version-bump 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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/bump.py), 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.

Origin

This is a copy

100% identical to version-bump — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/version-bump/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Bump

Bump the semver version in pyproject.toml and prepend a new entry to CHANGELOG.md. Mirrors the AgentCulture workflow used by culture, afi-cli, cfafi, and other org repos; vendored here so the repo is self-contained.

Usage

Run from the repo root.

# With changelog content (pipe JSON via stdin):
echo '{"added":["New X"],"changed":["Refactored Y"],"fixed":["Bug in Z"]}' \
  | python3 .claude/skills/version-bump/scripts/bump.py minor

# Without changelog content (inserts empty ### Added/Changed/Fixed stubs):
python3 .claude/skills/version-bump/scripts/bump.py patch

# Check current version without bumping:
python3 .claude/skills/version-bump/scripts/bump.py show

Bump Types

Type Example When to use
major 0.1.0 → 1.0.0 Breaking changes, namespace restructures, CLI surface breaks
minor 0.1.0 → 0.2.0 New features, new commands, new modules
patch 0.1.0 → 0.1.1 Bug fixes, doc updates, dependency bumps, CI-only changes
show prints 0.1.0 Read-only — no files changed

Changelog JSON Format

Pass via stdin. All fields are optional — only non-empty sections are rendered.

{
  "added":   ["List of new features"],
  "changed": ["List of changes to existing functionality"],
  "fixed":   ["List of bug fixes"]
}

What it touches

  • pyproject.toml — the version = "x.y.z" field (single source of truth; steward/__init__.py reads it via importlib.metadata, so there's no separate __version__ literal to keep in sync).
  • CHANGELOG.md — inserts a new ## [x.y.z] - YYYY-MM-DD entry at the top.

The script does the rest. Pick a bump type from the diff (patch for fixes, minor for new features, major for breaking changes), summarize the diff into added / changed / fixed lists, pipe as JSON, and commit the resulting pyproject.toml + CHANGELOG.md alongside the code change so the version-check CI job sees a consistent bump.

Read the full file on GitHub · 68 lines

Files

What ships with it

1 file 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. 3d ago First seen · 68 lines · 76 tokens per session scan A 7a5af91e2626

Subscribe to this mod's changes

version-bump is a skill published in the GitHub repository agentculture/arxivist (2 stars, last pushed 1mo ago), licensed MIT. It adds 76 tokens to every session and 668 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to version-bump, differing in 0 lines, and is treated as a copy.

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