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 jonathimer/devmarketing-skills --skill changelog-updatesgit clone --depth 1 https://github.com/jonathimer/devmarketing-skillsWrote 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/jonathimer/devmarketing-skills/changelog-updates)<a href="https://agentmods.dev/skills/jonathimer/devmarketing-skills/changelog-updates"><img src="https://agentmods.dev/badge/skills/jonathimer/devmarketing-skills/changelog-updates/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/jonathimer/devmarketing-skills/changelog-updates"><img src="https://agentmods.dev/badge/skills/jonathimer/devmarketing-skills/changelog-updates.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 | $0.00095 | $0.03234 |
| Opus 5 | $0.00048 | $0.01617 |
| Sonnet 5 | $0.00019 | $0.00647 |
| Haiku 4.5 | $0.00010 | $0.00323 |
Grade A, and why
changelog-updates scanned grade A with 1 finding 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 10d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl https://api.example.com/v2/users How it starts
The opening of the file, as written. The whole thing — 541 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Changelogs and Product Updates Developers Care About
Release notes are developer communication, not documentation. When done well, they build trust, demonstrate momentum, and turn updates into marketing moments.
Overview
Changelogs serve multiple audiences and purposes:
- Active developers: "What changed that affects my integration?"
- Evaluating developers: "Is this product actively maintained?"
- Developer advocates: "What's worth sharing with my audience?"
- Your team: Historical record of what shipped and when
This skill covers creating changelogs that inform, build trust, and occasionally delight.
Before You Start
Review the developer-audience-context skill to understand:
- How do your developers prefer to receive updates?
- What changes do they care most about?
- How much detail do they need?
- What's their tolerance for breaking changes?
Your changelog tone and detail level should match your audience.
Changelog Format
The Standard Structure
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/),
and this project adheres to [Semantic Versioning](https://semver.org/).
## [Unreleased]
### Added
- New feature in development
## [2.3.0] - 2024-01-15
### Added
- New `analyze()` method for sentiment analysis
- Support for batch processing up to 100 items
### Changed
- Improved error messages with troubleshooting links
- Default timeout increased from 30s to 60s
### Deprecated
- `old_analyze()` will be removed in v3.0.0
### Fixed
- Race condition in concurrent requests (#234)
- Memory leak when processing large files (#256)
## [2.2.1] - 2024-01-08
### Fixed
- Critical security patch for authentication bypass
## [2.2.0] - 2024-01-01
...
Change Categories
| Category | Use For |
|---|---|
| Added | New features, new endpoints, new parameters |
| Changed | Behavior changes, performance improvements |
| Deprecated | Features being phased out (still working) |
| Removed | Features that no longer exist |
| Fixed | Bug fixes |
| Security | Security-related changes |
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.
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.
- 10d ago First seen · 541 lines · 95 tokens per session scan A 5c4c2e2ea18d
changelog-updates is a skill published in the GitHub repository jonathimer/devmarketing-skills (86 stars, last pushed 6mo ago), licensed MIT. It adds 95 tokens to every session and 3,234 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
release-announcement
Write a release announcement — changelog, blog post, in-app note, or social post — that leads with user impact, names the audience, and includes upgrade/migration steps without filler.
multi-agent-release-manager
Cleans up the workspace, formats code, runs presubmit checks, and uploads CLs to Gerrit.
release-notes
Generate user-facing release notes from tickets, PRDs, or changelogs. Creates clear, engaging summaries organized by category (new features, improvements, fixes). Use when writing release notes, creating changelogs, announcing product updates, or summarizing what shipped.
pack-submit
Package one of this agent's own skills as a standalone community pack and submit it to the aeon registry as a PR.
nvca-chart-release
Release NVCA Operator chart changes from the native monorepo source to the vendored Helm chart. Use when updating the vendored NVCA Operator chart, changing NVCA image refs, publishing helm-nvca-operator, or validating the chart against a self-managed control plane.
updater_guide
Guidance for checking for and installing Row-Bot updates.