dart: Command for Claude Code

.claude/commands/dart-changelog.md

dart-changelog is a command for Claude Code from dartsim/dart. It costs 14 tokens per session (1,482 once invoked), scanned A, original, BSD-2-Clause.

A workflow for deciding whether a code change needs a changelog entry, then drafting, finalizing, or auditing that entry. A changelog records user-visible changes in each software release.

In plain words
What is it for?
It is for maintaining CHANGELOG.md entries before or after a pull request and checking release sections for omissions or excess detail.
Why use it?
It prevents release notes from being missing, duplicated, or more detailed than the project’s guidelines require.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: agent in frontmatter; mentions AGENTS.md; mentions Codex.

This is dartsim/dart's own configuration. It tells Claude Code how to work on dart 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 dart configures →

About the project

DART is an open-source C++23 physics engine that simulates the movement and interactions of articulated rigid-body systems for robotics, animation, and machine learning. Researchers and developers use it for kinematics, dynamics, collision handling, constraints, and loading robot models, with C++ and Python interfaces. The catalogue add-ons support workflows built around this engine.

dartsim/dart · 1,204 stars · on GitHub · dart.readthedocs.io

Reuse

Borrowing it

Nothing to install: this file belongs to dartsim/dart. 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/dartsim/dart/main/.claude/commands/dart-changelog.md
Clone the repo
git clone --depth 1 https://github.com/dartsim/dart

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 dart-changelog

README.md
[![agentmods](https://agentmods.dev/badge/commands/dartsim/dart/dart-changelog/github.svg)](https://agentmods.dev/commands/dartsim/dart/dart-changelog)
Your own site
<a href="https://agentmods.dev/commands/dartsim/dart/dart-changelog"><img src="https://agentmods.dev/badge/commands/dartsim/dart/dart-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.

agentmods 80×15 button for dart-changelog

Your own site · 80×15
<a href="https://agentmods.dev/commands/dartsim/dart/dart-changelog"><img src="https://agentmods.dev/badge/commands/dartsim/dart/dart-changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,482 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.
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 $0.00014 $0.01482
Opus 5 $0.00007 $0.00741
Sonnet 5 $0.00003 $0.00296
Haiku 4.5 $0.00001 $0.00148

Measured 2d ago against content hash 5f940ffc2fe0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dart-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 2d 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/commands/dart-changelog.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Maintain DART changelog entries: $ARGUMENTS

Purpose

dart-changelog is the reusable changelog decision and writing routine. It is usually invoked by other DART workflows when they reach a changelog decision, not directly by users.

Use it to decide whether CHANGELOG.md needs an entry, draft an entry at the right level of detail, add a PR link after publication, or audit a release section for missing or over-detailed entries. Keep style, placement, evidence, and release-note density aligned with docs/onboarding/changelog.md.

Required Reading

@AGENTS.md @docs/onboarding/changelog.md @docs/onboarding/release-roadmap.md @docs/onboarding/release-management.md

Modes

Interpret $ARGUMENTS as one of these modes when present:

  • decide: determine whether the current change needs a changelog entry and record the reason for the PR checklist/body when no entry is needed.
  • draft: write or revise the entry before a PR number exists.
  • finalize: add the PR link or adjust the entry after a PR exists, keeping the follow-up local until explicit maintainer/user approval permits a push.
  • audit: scan a release section or PR set for missing, duplicate, over-detailed, misplaced, or stale entries.
  • release-audit: alias for audit when the caller is finalizing a release section through dart-release-packaging.

If no mode is given, infer the smallest mode that satisfies the caller's need.

Output Contract

Every run must leave the caller with a concise, pasteable decision note. Use this shape in the response or handoff text. The PR body/checklist needs only the relevant decision, no-entry reason, or unresolved follow-up, not this full note:

Changelog decision:

- Mode: decide | draft | finalize | audit | release-audit
- Base evidence: <base ref or PR/release inspected>
- Scope evidence: <diff, PR, issue, or release section inspected>
- Decision: entry required | no entry required | entry deferred | audit only
- Target section: <release/category, or N/A>
- Entry text: <final or draft bullet, or N/A>
- PR-body note: <exact no-entry reason or follow-up, or N/A>
- Follow-up: <PR link, maintainer approval, release audit, or none>

Read the full file on GitHub · 140 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. 2d ago Changed 5f940ffc2fe0
  2. 7d ago First seen · 140 lines · 14 tokens per session scan A 516bc02c0e5a

Subscribe to this mod's changes

dart-changelog is a command published in the GitHub repository dartsim/dart (1,204 stars, last pushed 2d ago), licensed BSD-2-Clause. It adds 14 tokens to every session and 1,482 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.