TrustFence — Prompt Injection & Secret Scanner

TrustFence is a dependency-free Python library and CLI that screens untrusted text before it reaches an AI agent.

What it catches:

• Prompt overrides and role spoofing

• Leaked credentials

• Destructive commands

• Base64-like payloads

• Hidden Unicode

What you get:

• Readable source code

• Installable Python wheel

• CLI and Python API

• JSON, Markdown, and SARIF output

• Examples and policy template

• Full test suite

Verified release: 15/15 tests passing, zero runtime dependencies, and no network calls.

License: commercial single-buyer license. Version 1.0.0.