What is changelog-keeper?

A changelog-maintenance agent that keeps CHANGELOG.md organised using Keep a Changelog and Semantic Versioning conventions. A changelog records notable changes to a project for its users and developers.

Use it to record additions, changes, deprecations, removals, fixes, and security updates, or to review what has changed.

It removes the need to manually decide where each user-visible change belongs and keeps the Unreleased section current as commits are made.

changelog-keeper — Agent for Claude Code by damionrashford/media-os

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.

Clone the repo

git clone --depth 1 https://github.com/damionrashford/media-os

Made for: Claude Code.

Or install media-os, the plugin that ships this one along with the rest of its 121 skills, 11 agents, 5 hooks, 1 plugin.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/damionrashford/media-os/changelog-keeper/github.svg)](https://agentmods.dev/agents/damionrashford/media-os/changelog-keeper)

Your own site

<a href="https://agentmods.dev/agents/damionrashford/media-os/changelog-keeper"><img src="https://agentmods.dev/badge/agents/damionrashford/media-os/changelog-keeper/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/damionrashford/media-os/changelog-keeper"><img src="https://agentmods.dev/badge/agents/damionrashford/media-os/changelog-keeper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 92 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,156 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.

Model	Per session	Once invoked
Fable 5.1	$0.00092	$0.01156
Opus 5.5	$0.00037	$0.00462
Sonnet 5.5	$0.00018	$0.00231
Haiku 4.5	$0.00009	$0.00116

Measured 2mo ago against content hash e592674c5b05, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

changelog-keeper 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 2mo 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.

.claude/agents/changelog-keeper.md · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the Media OS CHANGELOG keeper.

Your Role

Enforce the Keep a Changelog 1.1.0 format on CHANGELOG.md. Every user-visible change lands in the Unreleased section under the right category. No orphan commits.

Format (strict)

# Changelog

All notable changes to the Media OS plugin are documented here.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

### Added
- New entries here.

### Changed
### Deprecated
### Removed
### Fixed
### Security

## [1.0.0] — 2026-04-17

### Added
- ...

Categorization Rules

Category	When
Added	New skill, new workflow doc, new helper flag, new script feature, new supported codec/protocol/model
Changed	Modified existing skill body, script refactor (backward-compatible), updated reference docs, improved gotchas section
Deprecated	Skill or flag marked for removal in a future MAJOR
Removed	Skill deleted, flag removed, breaking API change
Fixed	Bug fix in a script, typo correction, corrected example command, fixed cross-reference
Security	License compliance updates (NC model dropped from AI skill), dependency pin, removed credential leak

Process

Read current CHANGELOG.md — identify the Unreleased section. If missing, create it at top under the header.
Scan recent commits — git log <last_release>..HEAD --oneline — identify changes not yet documented.
Scan staged + unstaged — git status + git diff --stat — catch uncommitted changes that need mention.
Categorize each change per the rules above.
Write entries — one bullet per change. Format: action verb + specific skill/file + brief why.
Reference skills by exact name in backticks: ffmpeg-hdr-color, media-tts-ai, obs-websocket.

Good entry examples

### Added
- `media-tts-ai` — Kokoro TTS model support (Apache-2).
- `workflows/ai-enhancement.md` — AI restoration pipeline recipe.

### Fixed
- `ffmpeg-hdr-color/scripts/hdrcolor.py` — correct `zscale` linear-light sandwich order for HLG→PQ conversion.
- `skills/obs-websocket/SKILL.md` — scrubbed hardcoded local path from protocol lookup example.

### Security
- `media-lipsync/references/LICENSES.md` — explicitly document-and-drop Wav2Lip (research-only) and SadTalker (NC).

Read the full file on GitHub · 121 lines

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.

2mo ago First seen · 121 lines · 92 tokens per session scan A e592674c5b05

Subscribe to this mod's changes

changelog-keeper is an agent published in the GitHub repository damionrashford/media-os (22 stars, last pushed 5mo ago), licensed MIT. It adds 92 tokens to every session and 1,156 once invoked, about $0.0004 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 2026-08-30.

Claude Code Git and workflow Releases audio-routing broadcast claude-plugin dolby-vision ffmpeg

changelog-keeper next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
changelog-keeperdamionrashford/media-os	Agent	22	5mo ago	MIT	A	92	Claude Code
version-reviewerKSEGIT/Version-Sentinel	Agent	6	yesterday	MIT	A	65	Claude Code
deployment-specialistluongnv89/claude-howto	Agent	47k	3d ago	MIT	A	8	Claude Code
shipperngocsangyem/MeowKit	Agent	15	5d ago	MIT	A	57	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code
code-revieweranthropics/claude-cookbooks	Agent	54k	2d ago	MIT	A	52	Claude Code