Agent skill

Open Source License Scan

by ahmadvh in ahmadvh/octochains

Scans technology stacks and dependencies for viral open-source licensing contamination (Copyleft risks).

Custom licenceAuto-check passedLegal & Compliance

Install Open Source License Scan

skills CLI
$ npx skills add ahmadvh/octochains --skill open-source-license-scan -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ahmadvh/octochains open-source-license-scan --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ahmadvh/octochains.git skills-src && mkdir -p .claude/skills && cp -r skills-src/src/octochains/agents/skills/legal/open-source-license-scan .claude/skills/open-source-license-scan && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
open-source-license-scan
GitHub stars
377
Token cost
~322 tokens
SKILL.md length
145 words
Files
1
Skills in repo
13
Repo updated
First seen
Licence
Custom licence

At a glance

Scans technology stacks and dependencies for viral open-source licensing contamination (Copyleft risks).

  • Works in 3 steps: Viral License Detection: Scan the text… → SaaS Contamination (AGPL): If the system… → Permissive Validation: Identify safely…
  • Tasks that involve Regulatory compliance
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Open Source License Scan is an agent skill from ahmadvh/octochains. Scans technology stacks and dependencies for viral open-source licensing contamination (Copyleft risks).

Its SKILL.md is about 320 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Legal & Compliance, covering Regulatory compliance. The repository describes itself as: A lightweight Python framework for parallel, isolated, collaborative AI reasoning.

When your agent uses it

  • Tasks that involve Regulatory compliance

Example prompts

  • “Use the open-source-license-scan skill to scan technology stacks and dependencies for viral open-source licensing contamination (Copyleft risks)”
  • “/open-source-license-scan”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Viral License Detection: Scan the text for mentions of strictly copyleft licenses (e.g., GNU GPL, AGPL).
  2. SaaS Contamination (AGPL): If the system operates as a cloud service (SaaS) and utilizes AGPL components (like early MongoDB or modern…
  3. Permissive Validation: Identify safely usable permissive licenses (MIT, Apache 2.0, BSD) and mark them as cleared.

What it can do on your machine

Read from SKILL.md and the folder at commit 3512a57. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Open Source License Scan loads about 322 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 145 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~32
When it runs · the whole SKILL.md, loaded when a task matches
~322

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 145 words (~322 tokens).

“Analyze the provided software architecture, tech stack, or dependencies to identify severe Intellectual Property (IP) and licensing liabilities for a commercial/proprietary enterprise product.”

— opening of SKILL.md by ahmadvh, Custom licence
name
open-source-license-scan
version
1.0.0

Read the full SKILL.md on GitHub

Files

Just SKILL.md in src/octochains/agents/skills/legal/open-source-license-scan of ahmadvh/octochains.

Open the folder on GitHubat commit 3512a57

Compare with similar skills

Open Source License Scan next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Open Source License Scan compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Open Source License Scan this skillahmadvh/octochains377—~322Automated safety check: PassCustom licence
HIPAA Pre-Deployment Compliance Checkmaziyarpanahi/openmed5.5k—~2kAutomated safety check: PassApache-2.0
Hipaa ComplianceSushegaad/Claude-Skills-Governance-Risk-and-Compliance9461 repos~2.3kAutomated safety check: PassMIT
ISO Standards Readiness EvidenceK-Dense-AI/scientific-agent-skills48k1 repos~4.6kAutomated safety check: NotesMIT
Iso42001Sushegaad/Claude-Skills-Governance-Risk-and-Compliance9461 repos~3.7kAutomated safety check: PassMIT
Legal Compliance SearchSerein-81/financial_rag148—~1.6kAutomated safety check: NotesNone

Similar skills

  • Walks a data pipeline against the HIPAA Privacy and Security Rule checklist and produces a gap report before it processes patient data.

    5.5k GitHub stars~2k tokensUpdated today
    Legal & ComplianceAuto-check passed
  • Hipaa Compliance

    Sushegaad/Claude-Skills-Governance-Risk-and-Compliance

    Expert HIPAA compliance assistant for healthcare and software contexts.

    946 GitHub starsUsed in 1 repo~2.3k tokens
    Legal & ComplianceAuto-check passed
  • ISO Standards Readiness Evidence

    K-Dense-AI/scientific-agent-skills

    Organizes scope, controlled documents, risk files and traceability into draft evidence for human review against ISO 13485, 14971, 17025 and 15189.

    48k GitHub starsUsed in 1 repo~4.6k tokens
    Legal & ComplianceAuto-check: notes
  • Iso42001

    Sushegaad/Claude-Skills-Governance-Risk-and-Compliance

    Expert ISO 42001 AI Management System (AIMS) compliance advisor.

    946 GitHub starsUsed in 1 repo~3.7k tokens
    Legal & ComplianceAuto-check passed
  • Legal Compliance Search

    Serein-81/financial_rag

    Looks up current company registration rules, industry licences and compliance obligations in China through live web search, tailored to the business profile.

    148 GitHub stars~1.6k tokensUpdated 4 mo ago
    Legal & ComplianceAuto-check: notes
  • Ad Compliance Review

    zh-xx/legal-assistant-skills

    广告合规审核技能,用于审核广告素材是否符合中国广告法及相关法规。适用场景:(1) 用户提交广告文案、广告素材要求合规审核时;(2) 用户提到"广告审核""广告合规""广告法审查"等关键词时;(3) 用户要求检查广告内容是否存在违法违规风险时;(4) 用户提交房地产、食品、医疗、药品、互联网等行业广告要求专项审核时。审核依据涵盖《广告法》《反不正当竞争法》及行业专项法规。

    174 GitHub stars~1.2k tokensUpdated 5 mo ago
    Legal & ComplianceAuto-check passed

More from ahmadvh/octochains

All 13 skills in this repo
  • Breach Notification Triage

    ahmadvh/octochains

    Determines whether a security incident involves personal data, triggers regulatory breach-notification obligations (e.g.

    377 GitHub stars~861 tokensUpdated 1 mo ago
    Auto-check passed
  • Gdpr Review

    ahmadvh/octochains

    Audits data processing systems, logging mechanisms, and user tracking implementations for compliance with EU GDPR / German DSGVO mandates.

    377 GitHub stars~455 tokensUpdated 1 mo ago
    Auto-check passed
  • Analyzes authentication and authorization events for failed-login clustering, privilege-escalation chains, credential-stuffing patterns, and MFA-bypass indicators.

    377 GitHub stars~1.3k tokensUpdated 1 mo ago
    Auto-check passed
  • Detects anomalous behavior by authenticated users that may indicate insider threats through behavioral analysis of access patterns, privileged actions, and data movement.

    377 GitHub stars~700 tokensUpdated 1 mo ago
    Auto-check passed
  • Cac Ltv Viability

    ahmadvh/octochains

    Audits the unit economics of customer acquisition against lifetime value.

    377 GitHub stars~323 tokensUpdated 1 mo ago
    Auto-check passed
  • Audits architectural proposals and data schemas for GDPR/DSGVO Article 9 (Special Categories of Personal Data) violations.

    377 GitHub stars~403 tokensUpdated 1 mo ago
    Auto-check passed

Questions about Open Source License Scan

What does Open Source License Scan do?

Scans technology stacks and dependencies for viral open-source licensing contamination (Copyleft risks). Open Source License Scan is an agent skill from ahmadvh/octochains. Scans technology stacks and dependencies for viral open-source licensing contamination (Copyleft risks).

When should I use Open Source License Scan?

Open Source License Scan fits situations like: tasks that involve Regulatory compliance.

How do I install Open Source License Scan in Claude Code?

Run `npx skills add ahmadvh/octochains --skill open-source-license-scan -a claude-code`. Or copy the skill folder (src/octochains/agents/skills/legal/open-source-license-scan in ahmadvh/octochains) into .claude/skills/open-source-license-scan in your project. Claude Code loads it when a task matches its description.

How do I install Open Source License Scan in Codex?

Run `npx skills add ahmadvh/octochains --skill open-source-license-scan -a codex`. Or copy the skill folder (src/octochains/agents/skills/legal/open-source-license-scan in ahmadvh/octochains) into .agents/skills/open-source-license-scan in your project. Codex loads it when a task matches its description.

Can I use Open Source License Scan in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ahmadvh/octochains --skill open-source-license-scan -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/open-source-license-scan, .gemini/skills/open-source-license-scan, .github/skills/open-source-license-scan and .opencode/skills/open-source-license-scan in your project.

What does Open Source License Scan need to run?

SKILL.md names no scripts, command-line tools or credentials: Open Source License Scan is instructions for the agent only.

Does Open Source License Scan access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Open Source License Scan safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Open Source License Scan use?

Open Source License Scan has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Open Source License Scan use?

About 322 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Open Source License Scan?

Skills that share tags, products or a category with Open Source License Scan: HIPAA Pre-Deployment Compliance Check (maziyarpanahi/openmed, 5.5k stars), Hipaa Compliance (Sushegaad/Claude-Skills-Governance-Risk-and-Compliance, 946 stars), ISO Standards Readiness Evidence (K-Dense-AI/scientific-agent-skills, 48k stars) and Iso42001 (Sushegaad/Claude-Skills-Governance-Risk-and-Compliance, 946 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Open Source License Scan?

ahmadvh (a GitHub user) maintains it in ahmadvh/octochains, which has 377 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on August 20, 2026.

Source: ahmadvh/octochains on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.