AI SHIELD
100% client-side · nothing uploaded

Prompt Injection Hygiene Scanner

Free heuristic pre-check. Runs 100% in your browser — your prompt never leaves your device.

01 — Scanner Static regex inspection
0 characters · 0 lines ·
Examples:
02 — How it works

Deterministic pattern inspection

Heuristic checks raise the bar; they are not bulletproof.

Step 1 · Paste

Paste your system prompt or LLM instruction template into the scanner.

Step 2 · Static pattern check

Browser evaluates deterministic regex heuristics for known prompt injection indicators, jailbreaks, and delimiters.

Step 3 · Fix & re-scan

Address high-severity gaps, add structural tags and conflict hierarchies, and re-scan immediately.

03 — FAQ

Frequently Asked Questions

Is this a real penetration test?

No — this is a static heuristic pattern check designed to catch common prompt vulnerabilities before deployment. It does not execute attacks or evaluate models dynamically.

Does my prompt leave my browser?

No — all pattern matching and scoring executes entirely within your browser's JavaScript runtime. Your system prompt is never transmitted to any server or external API.

My score is low — what now?

Fix high-severity items first, such as unconstrained instruction overrides and delimiter omissions, apply defensive boundaries, and re-scan.

Can I use this for compliance?

No — this is not a compliance tool. Security posture requires end-to-end red-teaming, threat modeling, and layered defense.