Caveat verdict
otp-challenger
Accesses credentials AND encodes data
Two-factor authentication challenge skill for TOTP/YubiKey verification; OTP_FAILURE_HOOK privilege is explicitly documented in metadata (not hidden) and the skill adds security gates.
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.
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.
Accesses credentials AND encodes data — may obfuscate stolen credentials
LLM02 · ASI03 · ASI04
Permission integrity
credential_access
Findings (7)
Possible hardcoded credential
SKILL.md · code · secret: "BASE32_SECRET
References sudo — requests elevated privileges
docs/implementation-plans/2025-01-31-yubikey-support/phase_01.md · code · sudo
apt-get install — installs system packages
docs/implementation-plans/2025-01-31-yubikey-support/phase_01.md · code · apt-get install
yum install — installs system packages
INSTALLATION.md · code · yum install
Base64 encoding/decoding
docs/implementation-plans/2025-01-31-yubikey-support/phase_01.md · code · base64-encode
Popular HTTP library — network access
docs/implementation-plans/2025-01-31-yubikey-support/phase_02.md · code · got
pip3 install — installs Python packages at runtime
INSTALLATION.md · code · pip3 install
Why the tier is capped
Execution sink present in raw bytes (Hard Floor: class B/C/F). Final tier capped at Caution — cannot be lifted by any downgrade, example-payload opt-in, or allowlist.
Permissions & capabilities
Requires 5 system binaries. (1 elevated: curl).
credential_accessdata_encoding Thanks — recorded.