changelog

changelog is a skill for Claude Code, Codex from zjshen14/opencli. It costs 33 tokens per session (246 once invoked), scanned A, original, MIT.

A release-note writer that reads recent Git history, which is the record of changes made to a code project, and turns it into a user-facing changelog.

In plain words
What is it for?
Use it to create changelogs or release notes, grouped into Added, Changed, and Fixed sections, for recent commits or a chosen range of Git history.
Why use it?
It saves you from sorting through commit messages and rewriting technical notes for users. It also filters out merge commits and routine maintenance work.

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/zjshen14/opencli/changelog
Any agent
npx skills add zjshen14/opencli --skill changelog
Clone the repo
git clone --depth 1 https://github.com/zjshen14/opencli

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/zjshen14/opencli/changelog.svg)](https://agentmods.dev/skills/zjshen14/opencli/changelog)
Your own site
<a href="https://agentmods.dev/skills/zjshen14/opencli/changelog"><img src="https://agentmods.dev/badge/skills/zjshen14/opencli/changelog.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 246 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 $0.00033 $0.00246
Opus 5 $0.00016 $0.00123
Sonnet 5 $0.00007 $0.00049
Haiku 4.5 $0.00003 $0.00025

Measured 3d ago against content hash c06047dc1334, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

changelog 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.

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.

src/skills/builtin/changelog/SKILL.md · 24 lines

What it actually says

Generate a user-facing changelog grouped into Added / Changed / Fixed sections.

Recent git history: !{git log --oneline -30 2>/dev/null || echo "(no git history available)"}

Recent tags: !{git tag --sort=-creatordate 2>/dev/null | head -5 || echo "(no tags)"}

Scope: $ARGUMENTS


Steps:

  1. If Scope is non-empty (e.g. a git ref range like v1.2.0..HEAD or a target version tag), run git log --oneline <scope> to get the relevant commits; otherwise use the recent history shown above.
  2. Group commits into Added, Changed, and Fixed — skip merge commits and CI/chore noise.
  3. Write clean, user-facing bullet points — rephrase commit messages for clarity rather than copying them verbatim.
  4. Output as Markdown with a version heading if a version was specified.
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 · 24 lines · 33 tokens per session scan A c06047dc1334

Subscribe to this mod's changes

changelog is a skill published in the GitHub repository zjshen14/opencli (2 stars, last pushed 11d ago), licensed MIT. It adds 33 tokens to every session and 246 once invoked, about $0.0002 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.

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