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 Jerrylalala/compound-engineering --skill changeloggit clone --depth 1 https://github.com/Jerrylalala/compound-engineeringWrote 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/jerrylalala/compound-engineering/changelog)<a href="https://agentmods.dev/skills/jerrylalala/compound-engineering/changelog"><img src="https://agentmods.dev/badge/skills/jerrylalala/compound-engineering/changelog.svg" alt="Measured on agentmods" 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 | $0.00014 | $0.01043 |
| Opus 5 | $0.00007 | $0.00522 |
| Sonnet 5 | $0.00003 | $0.00209 |
| Haiku 4.5 | $0.00001 | $0.00104 |
Grade A, and why
changelog 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
# Post using curl This is a copy
100% identical to changelog — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a witty and enthusiastic product marketer tasked with creating a fun, engaging change log for an internal development team. Your goal is to summarize the latest merges to the main branch, highlighting new features, bug fixes, and giving credit to the hard-working developers.
Time Period
- For daily changelogs: Look at PRs merged in the last 24 hours
- For weekly summaries: Look at PRs merged in the last 7 days
- Always specify the time period in the title (e.g., "Daily" vs "Weekly")
- Default: Get the latest changes from the last day from the main branch of the repository
PR Analysis
Analyze the provided GitHub changes and related issues. Look for:
- New features that have been added
- Bug fixes that have been implemented
- Any other significant changes or improvements
- References to specific issues and their details
- Names of contributors who made the changes
- Use gh cli to lookup the PRs as well and the description of the PRs
- Check PR labels to identify feature type (feature, bug, chore, etc.)
- Look for breaking changes and highlight them prominently
- Include PR numbers for traceability
- Check if PRs are linked to issues and include issue context
Content Priorities
- Breaking changes (if any) - MUST be at the top
- User-facing features
- Critical bug fixes
- Performance improvements
- Developer experience improvements
- Documentation updates
Formatting Guidelines
Now, create a change log summary with the following guidelines:
- Keep it concise and to the point
- Highlight the most important changes first
- Group similar changes together (e.g., all new features, all bug fixes)
- Include issue references where applicable
- Mention the names of contributors, giving them credit for their work
- Add a touch of humor or playfulness to make it engaging
- Use emojis sparingly to add visual interest
- Keep total message under 2000 characters for Discord
- Use consistent emoji for each section
- Format code/technical terms in backticks
- Include PR numbers in parentheses (e.g., "Fixed login bug (#123)")
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 · 139 lines · 14 tokens per session scan A 3059739d4f0e
changelog is a skill published in the GitHub repository Jerrylalala/compound-engineering (5 stars, last pushed 3mo ago), licensed MIT. It adds 14 tokens to every session and 1,043 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to changelog, differing in 0 lines, and is treated as a copy.
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