Caveat verdict

avatar-runtime

45
🟠 Risky
Significant risk patterns flagged — automated deep scan, not behavioral proof.

Accesses credentials AND makes external network calls

The skill explicitly states it contains no bundled code and instructs the agent to download and execute the avatar-runtime npm package via npx, which is runtime remote code execution; the skill itself acknowledges this and recommends sandboxing first, but it is a genuine concern.

Automated static analysis — not a human review. Caveat flags capabilities, not confirmed intent, and can produce false positives. Disagree with this verdict? Use Dispute below.

0
security
30
transparency
70
maintenance

What it does

These are capability combinations: each listed behavior occurs in the skill, but Caveat detects co-occurrence — it does not verify that one flows into another. Read the code to confirm a live chain.

Capability combination high

Accesses credentials AND makes external network calls — potential credential theft

LLM02 · ASI03

Permission integrity

Makes network requests but does not declare curl/wget in required binaries

network_out

Code accesses API keys/tokens but declares no environment variables

credential_access

Findings (6)

Pattern match critical

<script> tag in markdown — potential code injection

SKILL.md · code · <script

Pattern match critical

Pipe to python — executes piped content as Python code

SKILL.md · code · | python3

Pattern match critical

Possible hardcoded credential

SKILL.md · code · API_KEY="your-key

Pattern match critical

Pipe-to-python pattern — remote code execution risk

SKILL.md · code · curl -s "$BASE/v1/status" | python

Pattern match high

HTTP request to bare IP address — common in malicious payloads

SKILL.md · code · http://127.0.0.1

Pattern match medium

Instructs covert action — may act without user awareness

references/WEB-EMBEDDING.md · prose · downgraded · silently

Why the tier is capped

Execution sink present in raw bytes (Hard Floor: class B/C). Final tier capped at Caution — cannot be lifted by any downgrade, example-payload opt-in, or allowlist.

Permissions & capabilities

No declared permissions — minimal attack surface.

network_incredential_accessnetwork_out
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