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claude-md-management — agentic threat model

8.5AIVSS 8.5 · High

The agent poses a significant risk of persistent prompt injection and instruction poisoning because its core function is to rewrite project instructions (CLAUDE.md) and session memory, potentially codifying malicious behaviors into the developer environment.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 7.5AARS uplift 0.98Factor sum 3.9/10Threat ×1.0Mitigation ×1.0
Autonomy of Action
0.50
Goal-Driven Planning
0.30
Self-Modification
0.80
Dynamic Tool Use
0.20
Persistent Memory
0.80
Contextual Awareness
0.50
Dynamic Identity
0.00
Multi-Agent Interactions
0.10
Non-Determinism
0.50
Opacity & Reflexivity
0.20

Scored with the canonical OWASP AIVSS formula (AIVSS calculator reference); agentic risk factors estimated from the agent’s described capabilities.

MAESTRO 7-layer threat model

Per-layer threats for this agent. Layers tagged “not certain from listing” are general, caveated commentary where the public description didn’t pin that layer.

L1 · Foundation Models⚠ not certain from listing

Not certain from the listing — assumes Anthropic Claude models are used. The primary threat is indirect prompt injection where malicious content in the codebase or session history manipulates the model into generating compromised instructions.

L2 · Data Operations✓ mapped

The primary data assets are the CLAUDE.md file and session logs. The main threat is data poisoning, where untrusted inputs during a session are captured and permanently written into the project's instruction memory.

L3 · Agent Frameworks✓ mapped

The framework exposes file read/write skills. Threats include insecure tool integration (e.g., path traversal if the plugin does not restrict writes strictly to CLAUDE.md) and logic flaws in the auditing/rewriting code.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — likely runs locally within a developer's IDE or CLI environment. If unsandboxed, a compromise of the plugin could lead to arbitrary local file system access or execution of malicious commands.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — there is no mention of built-in guardrails or logging. A lack of observability means malicious modifications to CLAUDE.md could occur silently without developer detection.

L6 · Security & Compliance (cross-cutting)⚠ not certain from listing

Not certain from the listing — there are no explicit authorization policies or access controls defined to govern which session events are allowed to trigger rewrites of the project instructions.

L7 · Agent Ecosystem⚠ not certain from listing

Not certain from the listing — while designed as a standalone plugin, other active agents or plugins in the same workspace could manipulate the session history to indirectly control this agent's writing behavior.

MAESTRO — the 7-layer agentic threat-modeling framework (Cloud Security Alliance / Ken Huang).