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Security audit

Daily Brief Writer

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward daily-brief writing helper with no evidence of hidden execution, persistence, credential use, or data exfiltration.

Installers should expect this skill to process the notes they provide, which may include sensitive workplace context. Use it when you intentionally want a daily brief or status digest, and review the generated summary before sharing it.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The manifest description says to use the skill whenever Codex needs to summarize what happened today, prepare an end-of-day update, draft a manager-ready status note, or convert messy bullets into a structured daily digest. These activation cues are broad and common in everyday work communication, and the file does not provide explicit trigger constraints or negative examples to narrow when this skill should or should not be invoked.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The default prompt uses a generic activation phrase that can apply to a wide range of user inputs without any scoping, confirmation, or context checks. In an agent environment, overly broad invocation increases the chance of accidental triggering on unrelated content, causing unintended processing of raw notes or sensitive work context and making prompt-routing abuse easier.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.