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 agentmods add skills/codeaholicguy/ai-devkit/changelognpx skills add codeaholicguy/ai-devkit --skill changeloggit clone --depth 1 https://github.com/codeaholicguy/ai-devkitWhat 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 | $0.00049 | $0.00383 |
| Opus 5 | $0.00024 | $0.00192 |
| Sonnet 5 | $0.00010 | $0.00077 |
| Haiku 4.5 | $0.00005 | $0.00038 |
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 2d 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
Update the top Unreleased list in CHANGELOG.md from commits after the latest release.
Workflow
- Find the latest release base:
- Prefer the latest reachable tag:
git describe --tags --abbrev=0. - If there are no tags, search recent history for a release commit and use that hash.
- Prefer the latest reachable tag:
- Get commits:
git log <base>..HEAD --reverse --format='%H%x09%s'. - Derive the GitHub repo URL from
git remote get-url origin. - For each commit, add one concise changelog line:
- Format:
- [<short-hash>](<url>) <one-line summary> - If the commit clearly relates to a PR, link the hash to the PR URL instead of the commit URL.
- Detect PRs from subjects like
(#123), merge commits, orgh pr list --search <hash> --state all --json number,url.
- Format:
- Insert the new lines into the top
Unreleasedsection/list inCHANGELOG.md.- If no
Unreleasedsection exists, create one at the top. - Do not create a dated release heading unless the user asks for a release.
- If no
Rules
- Keep one line per commit.
- Preserve the existing changelog style when obvious.
- Always add entries to the top
Unreleasedlist. - Skip noisy commits only when clearly non-user-facing and explain what was skipped.
- Do not invent PR links; use commit links when PR evidence is missing.
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.
- 2d ago First seen · 32 lines · 49 tokens per session scan A c0b6dc7f2908
changelog is a skill published in the GitHub repository codeaholicguy/ai-devkit (1,601 stars, last pushed 2d ago), licensed MIT. It adds 49 tokens to every session and 383 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 2026-08-30.
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