A2A Chatting

Security checks across malware telemetry and agentic risk

Overview

This appears to be a legitimate agent-to-agent messaging skill, with the main risk being that shared messages can expose context if used carelessly.

Install only if you want agents to communicate through a shared bus. Use a private repository, verify partner agent IDs before pairing, avoid sending secrets or confidential data in messages, and review any watch or cron setup so you understand when it will run.

SkillSpector

By NVIDIA

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 (1)

Vague Triggers

Medium

Confidence: 85% confidence
Finding: The trigger description is broad enough to activate on generic requests to 'talk to another agent' or 'coordinate,' which can cause over-invocation of a capability that sends messages to other agents. In a multi-agent environment, unnecessary or user-unintended cross-agent communication can leak context, amplify prompt injection, or cause unauthorized task propagation.

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal