changelog-scribe

changelog-scribe is a skill for Claude Code, Codex from Systemartis/readmedaddy. It costs 96 tokens per session (433 once invoked), scanned A, original, MIT.

A tool for turning commits since a release into a readable CHANGELOG section. A CHANGELOG is a file that tells users what changed between software releases.

In plain words
What is it for?
Use it when preparing a release, especially when the changelog is missing, outdated, or no longer matches the project’s commits.
Why use it?
It avoids relying on raw commit titles or inventing release notes. Each listed change is tied to an actual commit and grouped by its type.

Skill for Claude CodeCodex

Part of the readmedaddy plugin — 2 skills, 1 hook shipped together

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/systemartis/readmedaddy/demo
Any agent
npx skills add Systemartis/readmedaddy --skill demo
Clone the repo
git clone --depth 1 https://github.com/Systemartis/readmedaddy

Made for: Claude Code, Codex.

Or install readmedaddy, the plugin that ships this one along with the rest of its 2 skills, 1 hook.

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-scribe

README.md
[![agentmods](https://agentmods.dev/badge/skills/systemartis/readmedaddy/demo.svg)](https://agentmods.dev/skills/systemartis/readmedaddy/demo)
Your own site
<a href="https://agentmods.dev/skills/systemartis/readmedaddy/demo"><img src="https://agentmods.dev/badge/skills/systemartis/readmedaddy/demo.svg" alt="Measured on agentmods" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 433 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00096 $0.00433
Opus 5 $0.00048 $0.00217
Sonnet 5 $0.00019 $0.00087
Haiku 4.5 $0.00010 $0.00043

Measured 5d ago against content hash 93e9b704979d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

changelog-scribe 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 5d 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.

skills/readmedaddy/eval/fixtures/skill-fixture/skills/demo/SKILL.md · 41 lines

What it actually says

changelog-scribe

changelog-scribe turns the commit range since the last release tag into a clean, grouped CHANGELOG section: features, fixes, and breaking changes, each as a reader-facing line rather than a raw commit subject. It follows Keep a Changelog ordering and never invents an entry that has no commit behind it.

Method

  1. Find the range. Resolve the latest release tag and collect commits from that tag to HEAD. If there is no tag, use the full history and say so.
  2. Classify each commit. Bucket into Added / Changed / Fixed / Removed / Deprecated / Security from the commit type and body, dropping noise commits (merges, formatting-only, CI tweaks).
  3. Rewrite for readers. Convert each kept commit into a present-tense, user- facing line. A commit subject is a developer note; a changelog line is for the person upgrading.
  4. Assemble the section. Emit a dated ## [version] block in the repo's existing changelog order, breaking changes first and called out explicitly.
  5. Verify. Every line traces back to a real commit in the range. Nothing is added that the diff does not support.

What's in references/

  • references/grouping.md — the commit-type to changelog-section mapping and the noise-commit filter rules.
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. 5d ago First seen · 41 lines · 96 tokens per session scan A 93e9b704979d

Subscribe to this mod's changes

changelog-scribe is a skill published in the GitHub repository Systemartis/readmedaddy (8 stars, last pushed 1mo ago), licensed MIT. It adds 96 tokens to every session and 433 once invoked, about $0.0005 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.

Related

Other skills, from other repositories