Securing mas

Skill qte77/claude-code-plugins/plugins/mas-design/skills/securing-mas

A Claude Code plugin marketplace providing skills, rules, and scripts extracted from a production development workflow.

Install

npx -y skills add qte77/claude-code-plugins --skill securing-mas

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Apply OWASP MAESTRO, MITRE ATLAS, NIST AI RMF, and ISO 42001/23894 security frameworks to MAS designs

SKILL.md

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Securing Multi-Agent Systems

Target: $ARGUMENTS

When to Use

Trigger this skill when:

Conducting security reviews of agent systems
Threat modeling for multi-agent architectures
Reviewing plugin implementations for security
Designing security controls for pipelines

Framework Stack

MITRE ATLAS (attack taxonomy — what adversaries do)
      |  informs threat identification
      v
OWASP MAESTRO (threat model — what to defend against in MAS)
      |  maps threats to controls
      v
NIST AI RMF (risk framework — how to govern/map/measure/manage)
      |  operationalized by
      v
ISO 42001 + 23894 (certifiable management system + risk methodology)

Use all four layers together: ATLAS enumerates attack vectors, MAESTRO maps them to MAS-specific controls, NIST AI RMF structures governance, and ISO provides the certifiable management system.

Workflow

Review the framework stack — references/mas-security.md for the conceptual overview of MAESTRO, ATLAS, NIST AI RMF, and ISO 42001/23894 layers working together.
Apply the 7-layer security check — for each new component, walk through every MAESTRO layer. See references/maestro-7-layer-checklist.md for the actionable per-layer checklist (Model → Orchestration).
Run the plugin security checklist — before marking an implementation complete, verify input validation, output safety, resource management, observability, and external dependencies. See references/plugin-security-checklist.md.
Document threats in the cross-framework matrix — for each feature, map concerns to ATLAS techniques, MAESTRO layers, NIST functions, and ISO controls. Start from references/threat-matrix-template.md and add feature-specific rows.
Avoid common vulnerability patterns — consult references/common-vulnerabilities.md for vulnerable/secure code examples: prompt injection (L1), type confusion (L2), resource exhaustion (L5), secret leakage (L6).
Test security controls explicitly — write tests that exercise each MAESTRO layer's controls. See references/security-testing-patterns.md for pytest examples (input validation, timeout enforcement, error message safety).

What ships with it: 6 files

12.7 KB alongside SKILL.md