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.
npx skills add jeremylongworth-source/AgentSkills --skill changelog-maintenancegit clone --depth 1 https://github.com/jeremylongworth-source/AgentSkillsWrote 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.
[](https://agentmods.dev/skills/jeremylongworth-source/agentskills/changelog-maintenance)<a href="https://agentmods.dev/skills/jeremylongworth-source/agentskills/changelog-maintenance"><img src="https://agentmods.dev/badge/skills/jeremylongworth-source/agentskills/changelog-maintenance/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.
<a href="https://agentmods.dev/skills/jeremylongworth-source/agentskills/changelog-maintenance"><img src="https://agentmods.dev/badge/skills/jeremylongworth-source/agentskills/changelog-maintenance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.00292 |
| Opus 5.5 | $0.00021 | $0.00117 |
| Sonnet 5.5 | $0.00010 | $0.00058 |
| Haiku 4.5 | $0.00005 | $0.00029 |
Grade A, and why
changelog-maintenance 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 1mo 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.
What it actually says
Changelog Maintenance
Core Workflow
- Identify the changelog format, current version, target version, and source of changes.
- Preserve existing structure and style unless the user asks for a migration.
- Add concise entries under stable categories such as Added, Changed, Fixed, Deprecated, Removed, Security, and Docs.
- Move completed Unreleased entries into a version section when preparing a release.
- Keep issue, PR, and commit references only when they are useful and accurate.
- Note breaking changes and migration requirements prominently.
Safety Rules
- Do not invent change history, issue numbers, contributors, dates, or fixes.
- Do not rewrite historical entries unless asked.
- Do not hide breaking changes or security-relevant notes.
Deliverable Shape
For changelog work, provide:
- Changelog section changed
- Entries added or moved
- Version/date assumptions
- Breaking or migration notes
- Source changes used
- Validation or review notes
References
- Read
references/changelog-maintenance-checklist.mdwhen updating or reviewing changelogs.
What ships with it
2 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.
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.
- 1mo ago First seen · 42 lines · 52 tokens per session scan A eb083fbdbe5f
changelog-maintenance is a skill published in the GitHub repository jeremylongworth-source/AgentSkills (1 stars, last pushed 17d ago), licensed MIT. It adds 52 tokens to every session and 292 once invoked, about $0.0002 per session on Opus 5.5. 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.
Other skills, from other repositories
release-skills
A release workflow for preparing and publishing a new version of a software project. A release is a named version that may include updated version files, release notes, tags, or a GitHub Release.
release
Publish a herdr-gpui release. Use when the user asks to cut, push, ship, or publish a release, or to approve, verify, or GPG-sign one that is already running. Covers just release, the protected environments the run stops at, and the local verification and signing steps that are not part of CI.
ship-workflow
Resumable shipping lifecycle: reconciles current Git and GitHub facts from any entry (dirty default or feature branch, local commits, published branch, open PR, existing manual or native stack, merged work), commits dirty work as lossless logical commits, publishes or reuses the PR, requires current CI and review…
changelog-composer
Generates structured changelogs and release notes from git history and PRs, classifying breaking changes, features, fixes, performance, docs. Triggers on: "generate changelog", "write release notes", "what changed since", "prepare release", "release notes for", "diff since tag".
repo-sentinel
Full security audit for public repositories across 12 attack surfaces: git history, secrets, CI/CD, containers, dependencies, licenses. Triggers on: "push to GitHub", "make repo public", "open source this", "is this safe to push", "release audit", "secret leaks".
ci-cd-pipeline-authoring
Use when a repository needs CI/CD - author GitHub Actions workflows so TaskTrooper's pipeline auto-detects your validate/build/test jobs and stage/preprod/prod deploys, and so a dispatch delivery profile can dispatch the production deploy.