changelog

changelog is a skill for Claude Code, Codex from floor/vlist. It costs 17 tokens per session (365 once invoked), scanned A, original, MIT.

A skill that writes a user-facing changelog entry from Git commits since a chosen tag or reference.

In plain words
What is it for?
Use it to group commits as added, changed, fixed, testing, or other work and format the result by version and date.
Why use it?
It turns commit history into a consistently structured release summary without editing project files.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/floor/vlist/changelog
Any agent
npx skills add floor/vlist --skill changelog
Clone the repo
git clone --depth 1 https://github.com/floor/vlist

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for changelog

README.md
[![agentmods](https://agentmods.dev/badge/skills/floor/vlist/changelog.svg)](https://agentmods.dev/skills/floor/vlist/changelog)
Your own site
<a href="https://agentmods.dev/skills/floor/vlist/changelog"><img src="https://agentmods.dev/badge/skills/floor/vlist/changelog.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 365 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00017 $0.00365
Opus 5 $0.00009 $0.00182
Sonnet 5 $0.00003 $0.00073
Haiku 4.5 $0.00002 $0.00036

Measured 3d ago against content hash e45619fe6e9d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 3d 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.

.claude/skills/changelog/SKILL.md · 44 lines

What it actually says

Generate Changelog Entry

Generate a changelog entry for the vlist project based on recent commits.

Context

  • Latest tag: !git describe --tags --abbrev=0 2>/dev/null || echo "no tags"
  • Recent commits since last tag: !git log $(git describe --tags --abbrev=0 2>/dev/null || echo "HEAD~20")..HEAD --oneline --no-merges 2>/dev/null || git log --oneline -20

Instructions

  1. If $ARGUMENTS is provided, use it as the base ref. Otherwise use the latest tag (shown above).
  2. Categorize commits using conventional commit types:
    • Addedfeat commits
    • Changedrefactor, perf commits
    • Fixedfix commits
    • Testingtest commits
    • Otherdocs, chore, style commits
  3. Output a markdown changelog entry in this format:
## [version] — YYYY-MM-DD

### Added
- Description (scope)

### Changed
- Description (scope)

### Fixed
- Description (scope)
  1. Omit empty categories. Use the scope from commit messages in parentheses.
  2. Write clear, user-facing descriptions — reword commit messages if needed for clarity.
  3. Do NOT write the entry to any file — just output it for review.
Changes

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.

  1. 3d ago First seen · 44 lines · 17 tokens per session scan A e45619fe6e9d

Subscribe to this mod's changes

changelog is a skill published in the GitHub repository floor/vlist (16 stars, last pushed 1mo ago), licensed MIT. It adds 17 tokens to every session and 365 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 2026-09-01.

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