dart: Skill for Claude Code

.agents/skills/dart-audit-agent-compliance/SKILL.md

dart-audit-agent-compliance is a skill for Claude Code from dartsim/dart. It costs 25 tokens per session (565 once invoked), scanned A, original, BSD-2-Clause.

A workflow for checking whether coding agents can find and follow DART's documented rules, then fixing gaps in those rules or their placement. It compares the written expectation with what agents actually do.

In plain words
What is it for?
Use it to audit a compliance failure, verify the governing rule, identify why it was missed, and improve the relevant agent or contributor documentation.
Why use it?
It helps explain missed instructions, such as rules hidden in long text, stored in the wrong file, or weakened by conflicting guidance. The result is clearer guidance for future agent work.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: reads .claude/ paths; positional $N argument; mentions Claude Code.

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/.agents/skills/dart-audit-agent-compliance/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/dartsim/dart

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site · 80×15
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Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 565 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 $0.00025 $0.00565
Opus 5 $0.00013 $0.00282
Sonnet 5 $0.00005 $0.00113
Haiku 4.5 $0.00003 $0.00056

Measured 4d ago against content hash 47346510aa9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

dart-audit-agent-compliance 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 4d 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.

.agents/skills/dart-audit-agent-compliance/SKILL.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

dart-audit-agent-compliance

Use this skill in Codex to run the DART dart-audit-agent-compliance workflow. The editable workflow source lives in .claude/commands/; this file is its generated adapter in the shared .agents/skills/ catalog.

Invocation

  • Claude Code: /dart-audit-agent-compliance <arguments>
  • Codex: $dart-audit-agent-compliance <arguments>

Treat the text after the skill name as $ARGUMENTS. When the workflow references $1, $2, etc., map those to the positional values supplied by the user.

Command Body

Audit agent compliance issue: $ARGUMENTS

Required Reading

@AGENTS.md @docs/ai/principles.md @docs/ai/verification.md @docs/ai/components.md @docs/onboarding/ai-tools.md @docs/onboarding/contributing.md

Incident Inputs

  • Rule violated: $1
  • Where documented: $2
  • Actual behavior: $3
  • Expected behavior: $4

Treat missing positional values as details to infer from the user request or ask about before editing.

Workflow

  1. Locate the exact existing rule and confirm it is still correct.
  2. Diagnose why it was missed:
    • buried in prose
    • wrong file for the task type
    • weak emphasis
    • duplicated or conflicting guidance
    • not referenced from relevant commands or skills
  3. Prefer restructuring existing docs over adding duplicate content.
  4. Improve visibility with one or more focused changes:
    • move the rule to a loaded file
    • make it scannable with a checklist or mandatory marker
    • consolidate duplicate guidance
    • add cross-references from relevant commands or skills
  5. Run the principle audit from docs/ai/principles.md and use docs/ai/verification.md to map audit results to evidence.
  6. Run the relevant gate set from docs/ai/verification.md.

Output

  • Root cause for the missed rule
  • Files changed and why
  • Which audit items were proven by automation vs manual inspection
  • The check, test, or gate that would now catch a recurrence, or an explicit statement that none exists

Read the full file on GitHub · 74 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. 4d ago Changed 47346510aa9a
  2. 7d ago Changed · -1 lines 15b926908c26
  3. 9d ago First seen · 75 lines · 25 tokens per session scan A 4048351298b6

Subscribe to this mod's changes

dart-audit-agent-compliance is a skill published in the GitHub repository dartsim/dart (1,204 stars, last pushed 4d ago), licensed BSD-2-Clause. It adds 25 tokens to every session and 565 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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