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    Agentic AI Security Advisor - Threat Model & Harden

    2

    Defensive threat-modeling and hardening for agentic AI and LLM apps, mapped to the OWASP Agentic Top 10, MITRE ATLAS, and NIST AI RMF.

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    Agentic AI Security Advisor - Threat Model & Harden

    Agentic AI Security Advisor - Threat Model & Harden

    Example session with this skill installed

    Threat model a customer support agent that uses a React-based frontend, accesses a Postgres DB via a tool, and can send emails. It has no human approval for email dispatch.

    • Read your context and instructions
    • Compiled the agentic ai security

    Summary

    Threat-modeled a customer support agent (React frontend, Postgres DB access via tool, send_email tool, no human approval on email dispatch). Two high-severity gaps: the missing approval gate on email dispatch, and DB tool scope that isn't bounded to the task.

    Agentic Security Assessment

    ASI CategoryRiskATLAS TechniqueMitigation
    ASI01 — Agent Goal HijackIndirect injection via a crafted support ticket could redirect the agent's goal toward invoking send_email on attacker-controlled content.AML.T0051 — LLM Prompt InjectionTreat ticket content as untrusted; re-assert agent goal after ingesting external text.
    ASI02 — Tool MisuseThe Postgres tool may allow query patterns broader than the support workflow needs, letting crafted input bypass application-level filters.AML.T0053 — AI Agent Tool InvocationScope the DB tool to parameterized, task-specific queries; no free-form SQL.
    ASI03 — Identity & Privilege AbuseWith no approval gate, the agent can be used as an exfiltration path: DB data retrieved in-session can be transmitted out via send_email.AML.T0086 — Exfiltration via AI Agent Tool InvocationRequire explicit confirmation before any outbound send; egress-restrict what data can populate email bodies.

    Note: PII exposure via conversation history was considered but doesn't map cleanly to a single ASI category in this taxonomy — flagged as needing manual review rather than forced into an ID.

    NIST AI RMF mapping

    • Govern: No outbound-message approval policy currently exists — this is the top-priority gap.
    • Map: Trust boundary between Postgres retrieval and send_email invocation is unguarded.

    Measure: Run SCN-04 (over-broad tool scope) and SCN-11 (data exfiltration via agent tool) from the defensive test library.

    • Manage: Add a mandatory approval gate on send_email; scope the DB tool to parameterized queries only.

    Residual risk: Even with these controls, indirect injection risk from ticket content is reduced, not eliminated — periodic red-teaming of the ticket-ingestion path is still required.

    Next steps

    1. Add a mandatory is_approved flag to the send_email tool definition.
    2. Replace direct Postgres tool access with a scoped, parameterized query interface.
    3. Run SCN-04 and SCN-11 against a staging instance before production rollout.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Identify excessive tool permissions in autonomous agent architectures.Map agent vulnerabilities to OWASP Top 10 for Agentic Applications.Build adversarial test scenarios using MITRE ATLAS techniques.Prioritize security controls using NIST AI RMF functions.

    About this skill

    A security engineer's advisor for agentic and LLM-powered systems. Describe your agent — its tools, memory, autonomy level, and data flows — and it maps the attack surface and trust boundaries, walks the OWASP Top 10 for Agentic Applications against your design, and builds a library of defensive test scenarios you can run against your own system. You come away with prioritized, defense-in-depth controls aligned to the NIST AI RMF and a pentest-brief-quality assessment complete with risk ratings and an honest residual-risk statement.

    Reach for it when you're designing or reviewing an AI agent's attack surface, preparing for AI red-teaming or a pentest, choosing guardrails, or assembling a defensible security assessment for a system you own or are contracted to evaluate. It's the advisory reasoning layer that automated scanners don't give you — the human judgment about where autonomy, tool access, and untrusted input actually create risk.

    Authorized, defensive use only: it hardens systems you own or are permitted to assess and will not help attack, jailbreak, or weaponize against third parties. It reduces and surfaces risk rather than certifying a system "secure," and every output states residual risk explicitly. It's advisory — you run the assessment in your own environment — and because the underlying frameworks evolve, it flags framework names and IDs to verify against the current primary source. Not AI-governance/regulatory or legal advice.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
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      Download the ZIP

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      Unzip into your skills folder

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    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

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    Listed23 days ago
    Updated11 days ago

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