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 changelog-rulesgit 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/changelog-rules)<a href="https://agentmods.dev/skills/tobihagemann/turbo/changelog-rules"><img src="https://agentmods.dev/badge/skills/tobihagemann/turbo/changelog-rules/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/changelog-rules"><img src="https://agentmods.dev/badge/skills/tobihagemann/turbo/changelog-rules.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 | $0.00029 | $0.01196 |
| Opus 5 | $0.00015 | $0.00598 |
| Sonnet 5 | $0.00006 | $0.00239 |
| Haiku 4.5 | $0.00003 | $0.00120 |
Grade A, and why
changelog-rules 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 12d 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 — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Changelog Rules
The changelog is kept in CHANGELOG.md at the project root. The format is based on Keep a Changelog, and projects using these conventions adhere to Semantic Versioning.
File 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/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [1.2.0] - 2024-03-15
### Added
- Add dark mode support ([#38](https://github.com/owner/repo/issues/38), [#42](https://github.com/owner/repo/pull/42))
### Fixed
- Fix crash on startup ([#40](https://github.com/owner/repo/issues/40), [#43](https://github.com/owner/repo/pull/43))
[Unreleased]: https://github.com/<owner>/<repo>/compare/v1.2.0...HEAD
[1.2.0]: https://github.com/<owner>/<repo>/compare/v1.1.0...v1.2.0
[1.1.0]: https://github.com/<owner>/<repo>/releases/tag/v1.1.0
Changelog-Worthiness
Not every change belongs in a changelog. Changelogs are for humans, not machines.
Skip changes that are purely internal:
- Refactoring with no user-facing impact
- Code formatting, linting, whitespace
- Test additions or modifications (unless they indicate a fixed bug)
- CI/CD configuration
- Developer tooling (linters, editor config)
- Documentation updates (README, comments, docstrings)
- Dependency bumps with no behavior change
Include changes that affect users:
- New features or capabilities
- Changes to existing behavior
- Deprecated or removed functionality
- Bug fixes
- Security patches
Entry Format
- Imperative present tense without trailing periods (e.g., "Add dark mode support")
- One bullet point per distinct change
- Concise but complete. Include enough context that users understand the impact.
User-Centric Writing
Entries describe what changed for the user. Focus on outcomes and impact.
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.
- 12d ago First seen · 111 lines · 29 tokens per session scan A 5e009012fcb7
changelog-rules is a skill published in the GitHub repository tobihagemann/turbo (402 stars, last pushed 2d ago), licensed MIT. It adds 29 tokens to every session and 1,196 once invoked, about $0.0001 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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