Security audit

Quick Plan

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed planning helper that reads the conversation and relevant project files to draft a TDD plan, with no evidence of hidden execution or exfiltration.

Install this if you are comfortable with a planning skill reading the current conversation and relevant project files, using scoped subagents where available, and writing markdown planning artifacts in the workspace. Review the draft before approving the final plan path.

A.I.G

Vulnerability Patterns

Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (2)

Skill Enumeration

Medium

Category: Agent Snooping
Confidence: 80% confidence
Finding: Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
Content: Scanner excerpt · SKILL.md (reported line 57)May include surrounding context.
└─ Approved? → Write to .beagle/plans//plan.md

text
**The terminal state is a written plan.** quick-plan does not execute the plan, run tests, or modify production code. After writing it asks whether to generate an execution handoff prompt via the **subagent-prompt** skill ([../../../beagle-core/skills/subagent-prompt/SKILL.md](../../../beagle-core/skills/subagent-prompt/SKILL.md)). ## Reconstructing Intent

Skill Enumeration

Medium

Category: Agent Snooping
Confidence: 80% confidence
Finding: Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
Content: Scanner excerpt · SKILL.md (reported line 198)May include surrounding context.
└─ Approved? → Write to .beagle/plans//plan.md

text
**The terminal state is a written plan.** quick-plan does not execute the plan, run tests, or modify production code. After writing it asks whether to generate an execution handoff prompt via the **subagent-prompt** skill ([../../../beagle-core/skills/subagent-prompt/SKILL.md](../../../beagle-core/skills/subagent-prompt/SKILL.md)). ## Reconstructing Intent