promptguard-firewall 0.1.0

Prompt injection firewall for AI applications

PromptGuard

A prompt injection firewall for AI applications.

Install

pip install promptguard

Usage

from promptguard import protect

result = protect("Ignore all previous instructions and...")

if result["action"] == "block":
    print("Attack blocked!")
elif result["action"] == "sanitise":
    print("Sanitised:", result["analysis"]["sanitised_version"])
else:
    print("Safe to forward to your LLM")

Response format

{
  "action": "block",
  "tier": 1,
  "t1_label": "OBVIOUS_ATTACK",
  "analysis": null
}

Field	Values
action	"allow" / "block" / "sanitise"
tier	1 (fast, ~250ms) or 2 (deep analysis, ~2s)
analysis	null for Tier 1 blocks, full JSON for Tier 2