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changelog-generator

changelog-generator is a skill for Claude Code, Codex from sourav15mukherjee/skillforge-free-skills. It costs 59 tokens per session (715 once invoked), scanned A, original, MIT.

A changelog writer that turns Git commit history into a formatted CHANGELOG.md release entry. It groups changes such as additions, fixes, security work, removals, and breaking changes.

In plain words
What is it for?
Use it before a release to summarize commits since a tag or chosen point, create a new changelog when needed, and document user-visible changes.
Why use it?
It saves developers from manually reading commits and rewriting them as release notes, while matching an existing changelog format when one is present.

Skill for Claude CodeCodex

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

not rated 5repo 5mo ago A scan 59 tokens original MIT

Good fit Use it before a release to summarize commits since a tag or chosen point, create a new changelog when needed, and document user-visible changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sourav15mukherjee/skillforge-free-skills/changelog-generator
View source ↗ sourav15mukherjee/skillforge-free-skills
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 sourav15mukherjee/skillforge-free-skills --skill changelog-generator
Clone the repo
git clone --depth 1 https://github.com/sourav15mukherjee/skillforge-free-skills

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 changelog-generator

README.md
[![agentmods](https://agentmods.dev/badge/skills/sourav15mukherjee/skillforge-free-skills/changelog-generator/github.svg)](https://agentmods.dev/skills/sourav15mukherjee/skillforge-free-skills/changelog-generator)
Your own site
<a href="https://agentmods.dev/skills/sourav15mukherjee/skillforge-free-skills/changelog-generator"><img src="https://agentmods.dev/badge/skills/sourav15mukherjee/skillforge-free-skills/changelog-generator/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 changelog-generator

Your own site · 80×15
<a href="https://agentmods.dev/skills/sourav15mukherjee/skillforge-free-skills/changelog-generator"><img src="https://agentmods.dev/badge/skills/sourav15mukherjee/skillforge-free-skills/changelog-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 715 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 $0.00059 $0.00715
Opus 5 $0.00030 $0.00358
Sonnet 5 $0.00012 $0.00143
Haiku 4.5 $0.00006 $0.00072

Measured 12d ago against content hash 81c233682885, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

changelog-generator 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 12d 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.

changelog-generator/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Changelog Generator

Generate a polished CHANGELOG.md entry from git commit history.

Workflow

  1. Find the version range

    # Get the latest tag
git describe --tags --abbrev=0 2>/dev/null || echo "no-tags"
# Get current branch
git branch --show-current

    If no tags exist, use the full history. If the user specifies a range, use that.

  2. Collect commits

    git log v1.0.0..HEAD --pretty=format:"%H|%s|%an|%ad" --date=short

    Parse each commit into: hash, subject, author, date.

  3. Categorize commits Group by Conventional Commits prefix:

    • Added — feat: commits
    • Fixed — fix: commits
    • Changed — refactor:, perf: commits
    • Security — security: or security-related commits
    • Deprecated — commits mentioning deprecation
    • Removed — commits removing features
    • Breaking Changes — commits with BREAKING CHANGE: or !:

    Skip: merge commits, chore:, style:, ci: (unless significant).

  4. Check for existing CHANGELOG.md If it exists, read the format and match it. If not, create one with the Keep a Changelog header.

  5. Generate the entry Format:

    ## [1.1.0] - 2026-03-25

### Added
- Add OAuth2 Google login flow ([a1b2c3d])
- Add user profile settings page ([d4e5f6a])

### Fixed
- Fix session timeout not refreshing token ([b7c8d9e])
- Fix mobile nav overlay z-index issue ([f0a1b2c])

### Breaking Changes
- Remove deprecated /api/v1 endpoints — use /api/v2 ([c3d4e5f])

  6. Determine version number Suggest based on changes:

    • Has breaking changes → major bump
    • Has new features → minor bump
    • Only fixes → patch bump

  7. Write the changelog Prepend the new entry to CHANGELOG.md (after the header, before previous entries).

Rules

  • Always base the changelog on actual git commits — never fabricate entries
  • Skip merge commits and trivial chores unless they're user-facing
  • Link commit hashes as short refs
  • Highlight breaking changes prominently at the top
  • Use Keep a Changelog format: https://keepachangelog.com
  • If commits don't follow Conventional Commits, do your best to categorize by reading the subject
  • Ask the user for the version number if it can't be determined

Read the full file on GitHub · 87 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. 12d ago First seen · 87 lines · 59 tokens per session scan A 81c233682885

Subscribe to this mod's changes

changelog-generator is a skill published in the GitHub repository sourav15mukherjee/skillforge-free-skills (5 stars, last pushed 5mo ago), licensed MIT. It adds 59 tokens to every session and 715 once invoked, about $0.0003 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 2026-08-31.

Git and workflowReleases
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