fleet: Skill for Claude Code

.claude/skills/update-changelog/SKILL.md

update-changelog is a skill for Claude Code from brizzai/fleet. It costs 0 tokens per session (660 once invoked), scanned A, original, Apache-2.0.

A helper for adding a small Markdown file that records a change for the next software release. The project later combines these files into its main changelog, a list of notable changes.

In plain words
What is it for?
Use it after a feature or fix to record whether the change was added, improved, fixed, changed, removed, deprecated, or security-related.
Why use it?
It keeps release notes consistent without editing the main changelog by hand.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

This is brizzai/fleet's own configuration. It tells Claude Code how to work on fleet itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything fleet configures →

Reuse

Borrowing it

Nothing to install: this file belongs to brizzai/fleet. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/brizzai/fleet/master/.claude/skills/update-changelog/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/brizzai/fleet

Made for: Claude Code.

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 update-changelog

README.md
[![agentmods](https://agentmods.dev/badge/skills/brizzai/fleet/update-changelog.svg)](https://agentmods.dev/skills/brizzai/fleet/update-changelog)
Your own site
<a href="https://agentmods.dev/skills/brizzai/fleet/update-changelog"><img src="https://agentmods.dev/badge/skills/brizzai/fleet/update-changelog.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 660 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00000 $0.00660
Opus 5 $0.00000 $0.00330
Sonnet 5 $0.00000 $0.00132
Haiku 4.5 $0.00000 $0.00066

Measured 8d ago against content hash 66d816cb5b53, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

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.

.claude/skills/update-changelog/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Current Branch Context

!git log --oneline $(git merge-base HEAD master)..HEAD 2>/dev/null || echo "no commits" !git diff --name-only $(git merge-base HEAD master)..HEAD 2>/dev/null || echo "no changes"

Task

Add a changelog fragment for this PR, or skip with /no-changelog.

This repo does not hand-edit CHANGELOG.md. Each PR drops a small fragment file in changelog/unreleased/; at release time (/ship) they're merged into CHANGELOG.md and deleted automatically. Full guide + voice: changelog/README.md.

If argument is "skip", "no-changelog", or "none"

Comment /no-changelog on the PR and stop:

gh pr comment --body "/no-changelog"

Otherwise, add a fragment

  1. Create changelog/unreleased/<short-name>.md (any unique kebab-case name).
  2. Frontmatter with exactly one type: — one of: added, improved, fixed, changed, removed, deprecated, security.
  3. Optionally add highlight: true to also surface the entry in the in-app What's New reel (the animated top-right badge, W / Ctrl+K → "What's New"). The entry still renders in its normal type section; the flag also copies it into a ### Highlights block leading the release. Reserve it for changes a user would be glad to discover — most fragments are not highlights.
  4. Body — 1–2 sentences, reader-first.
---
type: added
highlight: true
---
**Bold headline.** Reader-first description of what changed for the user.

Writing style

  • Open with a bold 2–4 word headline, then the detail — so someone reading only the bold text gets the whole release.
  • Write for the user, not the developer — lead with the outcome, in second person ("You can now…", "Sessions now…"), not "Added support for…".
  • Numbers over adjectives ("~150ms instead of up to 2s", never "much faster").
  • code-format the concretes — keys, commands, paths (Ctrl+K, ~/Documents).
  • One idea per bullet; ban hype words (seamless, powerful, delightful, blazing).
  • Skip internal-only changes — refactors, new internal packages, docs files are not changelog-worthy on their own.

Read the full file on GitHub · 57 lines

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. 8d ago First seen · 57 lines · 0 tokens per session scan A 66d816cb5b53

Subscribe to this mod's changes

update-changelog is a skill published in the GitHub repository brizzai/fleet (52 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 660 tokens. 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.