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 eveld/claude --skill update-changeloggit clone --depth 1 https://github.com/eveld/claudeWrote 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/eveld/claude/update-changelog)<a href="https://agentmods.dev/skills/eveld/claude/update-changelog"><img src="https://agentmods.dev/badge/skills/eveld/claude/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/eveld/claude/update-changelog"><img src="https://agentmods.dev/badge/skills/eveld/claude/update-changelog.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00017 | $0.00665 |
| Opus 5 | $0.00009 | $0.00332 |
| Sonnet 5 | $0.00003 | $0.00133 |
| Haiku 4.5 | $0.00002 | $0.00067 |
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 9d 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 — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Update Changelog
Append phase tracking or final summary to thoughts/NNNN-description/changelog.md.
When to Use
During Implementation (after each phase):
- Document what was actually done vs planned
- Note deviations and reasons
- List files changed
- Capture discoveries
At Completion (after all phases):
- Append FINAL SUMMARY section
- Summarize key deviations
- Document lessons learned
- Note technical debt and follow-up work
Phase Update Format
Use template from templates/changelog-document.md Phase section:
## Phase {N}: {Phase Name}
**Completed**: {ISO_DATE}
**Status**: ✅ Complete
### What We Did
- Created slug determination skill
- Added interactive prompting with suggestions
### Deviations from Plan
- **Planned**: Create bash script only
- **Actually**: Created both skill and script
- **Reason**: Skill needed for integration with commands
### Files Changed
- `skills/determine-feature-slug/SKILL.md` - New skill file
- `scripts/next-feature-slug.sh` - Helper script
### Discoveries
- Bash parameter expansion handles leading zeros: `10#$NUM`
- Kebab-case validation regex: `^[a-z0-9-]+$`
Final Summary Format
Use template from templates/changelog-document.md FINAL SUMMARY section:
## 🎯 FINAL SUMMARY
**Completion Date**: 2026-02-05
**Overall Status**: ✅ Complete
### What Was Built
Full plugin restructuring with feature directories, changelog tracking,
milestone grouping, and agent orchestration.
### Key Deviations
1. Added interactive slug prompting (not in original plan)
2. Kept thoughts/notes/ unchanged instead of moving
### Impact on Original Plan
- Plan estimated 11 phases, completed 11
- Added 2 skills not in plan (prompting helpers)
- Simplified 3 phases by combining related changes
[... rest of sections ...]
Important Guidelines
- Read plan first to understand what was intended
- Compare actual vs planned - be specific about deviations
- Capture learnings - what would you do differently?
- Note technical debt - what was compromised for speed?
- Append only - never modify previous phase entries
- Be concise - focus on what matters, skip obvious details
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.
- 9d ago First seen · 101 lines · 17 tokens per session scan A a298c3b0c6f3
update-changelog is a skill published in the GitHub repository eveld/claude (10 stars, last pushed 7mo ago), licensed MIT. It adds 17 tokens to every session and 665 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 2026-08-31.
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