license-compliance

license-compliance is a skill for Claude Code, Codex from VeryGoodOpenSource/vgv-ai-flutter-plugin. It costs 174 tokens per session (1,787 once invoked), scanned A, original, MIT.

A license checker for package dependencies in Dart and Flutter projects. A package dependency is an external piece of code that a project uses, and its license states how it may be used or shared.

In plain words
What is it for?
Use it to scan a project, flag license issues, and produce a compliance summary, including projects inside a monorepo, which is one repository containing several projects.
Why use it?
It helps find dependencies with unknown or incompatible licenses, including indirect dependencies and packages without a stated license.

Skill for Claude CodeCodex

Written for Claude Code and Codex: allowed-tools in frontmatter, but also agents/openai.yaml present. Also seen: model in frontmatter; mentions Claude Code.

Part of the vgv-ai-flutter-plugin plugin — 15 skills, 1 agent, 3 hooks, 2 MCP servers shipped together

Good fit Use it to scan a project, flag license issues, and produce a compliance summary, including projects inside a monorepo, which is one repository containing several projects.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance
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.

Any agent
npx skills add VeryGoodOpenSource/vgv-ai-flutter-plugin --skill license-compliance
Clone the repo
git clone --depth 1 https://github.com/VeryGoodOpenSource/vgv-ai-flutter-plugin

Made for: Claude Code, Codex.

Or install vgv-ai-flutter-plugin, the plugin that ships this one along with the rest of its 15 skills, 1 agent, 3 hooks, 2 MCP servers.

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 license-compliance

README.md
[![agentmods](https://agentmods.dev/badge/skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance/github.svg)](https://agentmods.dev/skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance)
Your own site
<a href="https://agentmods.dev/skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance"><img src="https://agentmods.dev/badge/skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance/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 license-compliance

Your own site · 80×15
<a href="https://agentmods.dev/skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance"><img src="https://agentmods.dev/badge/skills/verygoodopensource/vgv-ai-flutter-plugin/license-compliance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 174 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,787 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 17
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 $0.00174 $0.01787
Opus 5 $0.00087 $0.00894
Sonnet 5 $0.00035 $0.00357
Haiku 4.5 $0.00017 $0.00179

Measured today against content hash 0c4a1d3f7120, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

license-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 today.

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.

skills/license-compliance/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

License Compliance

Dependency license auditor for Dart and Flutter projects — verifies that all package dependencies use licenses compatible with the project's requirements using the Very Good CLI MCP tools.

Cross-harness fallback. On Claude Code the packages_check_licenses MCP tool is the execution path. On a host without this plugin's Bash hooks and without the Very Good CLI MCP server connected, run very_good packages check licenses <project-directory> directly (the target path is positional and defaults to .; add --dependency-type direct-main,transitive so transitive obligations are covered) and read its output the same way — never block on a missing MCP server.


Core Standards

Apply these standards to ALL license compliance work:

  • Run packages_check_licenses MCP tool on the target project directory with licenses: true to display full license information
  • Pass directory to the MCP tool when the project is not at the workspace root — monorepos with the project in a subdirectory (e.g. mobile/) require directory: 'mobile'
  • A missing license is not "no license" — it means "all rights reserved" by default; always flag
  • Transitive dependencies matter — a permissive package that depends on a GPL package still carries the GPL obligation
  • Only scan output can certify compliance — never conclude that a project is compliant, clear, or safe to ship from a pubspec dependency list, a package name, a remembered license, or a previous audit. Scan output the user pastes or attaches counts as scan output: take it at face value, audit it, and do not re-run it or question its provenance. The distinction is whether each package arrives with a license attached, not who produced the text
  • Flag for manual review when in doubt — never assume compliance without a clear license identifier
  • Deliver the report in the prescribed format — when scan output exists, the answer is the template in Report Findings: the ## License Compliance Report heading, the summary counts including the total scanned, the flagged table with a risk level and a recommendation per row, and the ranked recommendations. A prose write-up or a bulleted list of packages is not the deliverable, however complete its content

Read the full file on GitHub · 113 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. today Changed · +1 lines · +140 tokens per session 0c4a1d3f7120
  2. 9d ago First seen · 112 lines · 34 tokens per session scan A 0b479bb74c4c

Subscribe to this mod's changes

license-compliance is a skill published in the GitHub repository VeryGoodOpenSource/vgv-ai-flutter-plugin (161 stars, last pushed today), licensed MIT. It adds 174 tokens to every session and 1,787 once invoked, about $0.0009 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 2026-08-30.

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