version-bumper

version-bumper is a skill for Claude Code from bestdeejay-design/agent-skills. It costs 132 tokens per session (1,997 once invoked), scanned A, original, MIT.

A read-only tool that chooses the next semantic version number and release tag from Git commit messages. Semantic versioning uses major, minor, and patch numbers to communicate the scale of changes.

In plain words
What is it for?
Use it to inspect Conventional Commits in Git history and calculate the current version, next version, and suggested release tag.
Why use it?
It removes manual guesswork when deciding whether recent changes require a major, minor, or patch version bump.

Skill for Claude Code

Written for Claude Code: when-to-use in frontmatter. Also seen: mentions OpenCode.

Good fit Use it to inspect Conventional Commits in Git history and calculate the current version, next version, and suggested release tag.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bestdeejay-design/agent-skills/version-bumper
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.

Any agent
npx skills add bestdeejay-design/agent-skills --skill version-bumper
Clone the repo
git clone --depth 1 https://github.com/bestdeejay-design/agent-skills

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 version-bumper

README.md
[![agentmods](https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/version-bumper/github.svg)](https://agentmods.dev/skills/bestdeejay-design/agent-skills/version-bumper)
Your own site
<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/version-bumper"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/version-bumper/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 version-bumper

Your own site · 80×15
<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/version-bumper"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/version-bumper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 132 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,997 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 $0.00132 $0.01997
Opus 5 $0.00066 $0.00999
Sonnet 5 $0.00026 $0.00399
Haiku 4.5 $0.00013 $0.00200

Measured today against content hash d1ec8973f8dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

version-bumper 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 today.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/bumper.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.

skills/version-bumper/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Bumper — semantic version from Conventional Commits

Load this skill when you need to compute the next semantic version and a suggested release tag from the commit history of a git repository that follows Conventional Commits. It is the release-pipeline counterpart of commit-message-writer (writes the commits) and changelog-generator (renders the changelog): this skill decides what version number the changelog and the release tag should carry.

The tool is read-only and offline: it never creates tags, never writes files, and makes no network calls. It reads git log subjects, classifies each commit by type, and prints the current version, the next version and a suggested tag. For testability the commit list can be fed from the COMMITS environment variable or a file (--commits FILE, one subject per line) — no git repository required.


The bumper script

scripts/bumper.py — pure Python 3 stdlib (no dependencies).

Source of commits Command
Git repository (default) python3 bumper.py --path /path/to/repo
Explicit current version python3 bumper.py --path . --current 1.2.3
Latest semver tag python3 bumper.py --path . --from-tags
File (no git needed) python3 bumper.py --commits commits.txt --current 1.2.3
Environment (no git needed) COMMITS='feat: a\nfix: b' python3 bumper.py --current 1.2.3

Bump rules (Conventional Commits v1.0.0)

Signal Bump Example
Breaking (! or BREAKING CHANGE: footer) MAJOR feat!: drop python 3.7
feat MINOR feat: add widget
fix, perf, refactor PATCH fix: repair crash
docs, style, test, chore, build, ci, revert, unknown no bump docs: readme

Type matching is case-insensitive (Feat: counts as feat). Unknown types are counted as other and never trigger a bump.

Output

latest_tag: v1.0.0
current_version: 1.0.0
next_version: 1.5.0
suggested_tag: v1.5.0
bump: minor
commits_analyzed: 14
counts: feat=1, fix=8, perf=2, refactor=1, docs=1, style=1, test=2, chore=1, build=0, ci=0, revert=0, breaking=1, other=0

Read the full file on GitHub · 158 lines

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. today Changed · +9 lines d1ec8973f8dd
  2. 8d ago First seen · 149 lines · 132 tokens per session scan A ad6f71c483eb

Subscribe to this mod's changes

version-bumper is a skill published in the GitHub repository bestdeejay-design/agent-skills (6 stars, last pushed today), licensed MIT. It adds 132 tokens to every session and 1,997 once invoked, about $0.0007 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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