Caveat verdict

leanstral-formal-verification

88
🟢 Trusted
No high-risk patterns surfaced by the deep scan — automated capability review, not behavioral proof.

Accesses credentials AND makes external network calls

Skill uses Mistral API for formal verification (Lean 4 theorem proving) with clear disclosure that code is sent externally, explicit warnings against including secrets, and documented use of an isolated project directory; all behavior matches stated purpose.

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
40
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

Findings (2)

Pattern match critical

Pipe-to-python pattern — remote code execution risk

SKILL.md · code · curl -s ... | python

Pattern match critical

Pipe to python — executes piped content as Python code

SKILL.md · code · | python3

Why the tier is capped

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

Permissions & capabilities

Requires 1 environment variable. (1 sensitive: MISTRAL_API_KEY). Requires 1 system binary.

network_outcredential_access
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