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 tobihagemann/turbo --skill update-changeloggit clone --depth 1 https://github.com/tobihagemann/turboWrote 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/tobihagemann/turbo/update-changelog)<a href="https://agentmods.dev/skills/tobihagemann/turbo/update-changelog"><img src="https://agentmods.dev/badge/skills/tobihagemann/turbo/update-changelog/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/tobihagemann/turbo/update-changelog"><img src="https://agentmods.dev/badge/skills/tobihagemann/turbo/update-changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- 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 | $0.00068 | $0.00458 |
| Opus 5 | $0.00034 | $0.00229 |
| Sonnet 5 | $0.00014 | $0.00092 |
| Haiku 4.5 | $0.00007 | $0.00046 |
Grade A, and why
update-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 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.
What it actually says
Update Changelog
Update the Unreleased section of the changelog based on the current changes.
Step 1: Run /changelog-rules Skill
Run the /changelog-rules skill to load shared changelog conventions.
Step 2: Check for Changelog
Use git rev-parse --show-toplevel to find the repository root. Look for the changelog file per /changelog-rules. If it does not exist, skip this skill. Do not create it.
Step 3: Analyze the Changes
Determine what changed:
- Read
git diff --cachedfor staged changes - If nothing is staged, read
git difffor unstaged changes - Use the conversation context for the intent behind the changes
Step 4: Assess Changelog-Worthiness
Apply the /changelog-rules changelog-worthiness and net-delta criteria. Skip fixes to code introduced by the same branch or PR.
If no changes are changelog-worthy, skip this skill.
Step 5: Check Existing Unreleased Entries
Read the current Unreleased section of the changelog. Look for entries that relate to the same feature or fix. This prevents duplicates across multiple commits for the same body of work.
- If an existing entry covers the same change, update its wording only if the current commit meaningfully extends or refines the feature. Do not add a duplicate entry.
Step 6: Update the Unreleased Section
Add or update entries in the Unreleased section following /changelog-rules conventions. Create subsection headers as needed (e.g., ### Added).
Then use the TaskList tool and proceed to any remaining task.
Rules
- Never modify released version sections. Only the Unreleased section is in scope.
- Do not stage the modified file. Staging is handled separately.
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 · 48 lines · 68 tokens per session scan A 1a6e2e5a5816
update-changelog is a skill published in the GitHub repository tobihagemann/turbo (402 stars, last pushed 2d ago), licensed MIT. It adds 68 tokens to every session and 458 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 2026-09-03.
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