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 riekelt/technical-writer --skill writing-changelogsgit clone --depth 1 https://github.com/riekelt/technical-writerWrote 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/riekelt/technical-writer/writing-changelogs)<a href="https://agentmods.dev/skills/riekelt/technical-writer/writing-changelogs"><img src="https://agentmods.dev/badge/skills/riekelt/technical-writer/writing-changelogs.svg" alt="Measured on agentmods" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00063 | $0.00818 |
| Opus 5 | $0.00032 | $0.00409 |
| Sonnet 5 | $0.00013 | $0.00164 |
| Haiku 4.5 | $0.00006 | $0.00082 |
Grade A, and why
writing-changelogs 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Writing changelogs
REQUIRED BACKGROUND: the technical-writing skill (hard rules, truth rules, style).
Overview
The changelog is one of the few document types where the change, not the current state, is the subject; migration docs and release notes are the others. It is historical: entries are never rewritten, only appended.
When to invoke, and not
Invoke after shipping a meaningful change (a feature, a fix of real size, a removal), when writing release notes, or when summarizing what shipped. Do NOT invoke for trivial edits (roughly three changed files, or three commits), and never rewrite or delete existing entries.
Rules
- One entry per shipped change, newest first, ISO dates, grouped by version where versions exist.
- Standard categories where the file uses them: Added / Changed / Deprecated / Fixed / Removed / Security. A Deprecated entry carries the removal date and the replacement.
- Breaking changes lead the entry, above the categories, each with the required migration action stated (and the migration guide linked when one exists). A breaking change buried under Added is the entry the reader needed most and found last.
- User-visible impact over implementation detail.
- Present tense, active voice, and no jargon the reader would not know.
- Group related changes, and never duplicate an existing entry.
- Record removals, not just additions: readers chase dead concepts otherwise.
- Release notes are the audience-facing cut of the same facts: what changed, who it affects, what to do about it. The changelog speaks to engineers; release notes to users of the system. Both draw on the same sources and must never contradict each other.
Entry shape
Document-type exception: the bold leads required below override the shared ban on bold-lead bullets. The exception covers changelog outcomes and the named known-issue, deferred-item, and omission categories only. Repeated label-value bullets remain banned elsewhere.
Bold lead stating the outcome, then root cause, then the fix, with exact names inline:
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.
- 8d ago First seen · 67 lines · 63 tokens per session scan A f819be8794e1
writing-changelogs is a skill published in the GitHub repository riekelt/technical-writer (15 stars, last pushed 8d ago), licensed MIT. It adds 63 tokens to every session and 818 once invoked, about $0.0003 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 2026-08-30.
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.
agent-release-swarm
Agent skill for release-swarm - invoke with $agent-release-swarm.
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.
updater_guide
Guidance for checking for and installing Row-Bot updates.