pipecat-firewall
A real-time adversarial-input firewall for Pipecat voice agents. It inspects each user turn in real time and blocks, flags, or redacts adversarial content — PII-extraction solicitation, prompt injection, and policy-override — before the LLM acts on it.
Detection + enforcement only: deterministic, dependency-light, and
production-safe. Tested against the pipecat-ai 0.0.x line (0.0.98–0.0.108);
the dependency is capped <1.0 because pipecat-ai 1.x restructures the frame
API (1.x support is future work).
Status: 0.1.0 core. The inbound
SentryFirewallFrameProcessor ships with three deterministic detectors and block/flag/redact enforcement. The outboundSentryLeakGuardand the optional LLM classifier land in later steps.
Install
pip install pipecat-firewall
The one-liner
from pipecat_firewall import SentryFirewall
pipeline = Pipeline([
transport.input(),
stt,
SentryFirewall(), # ← detects & blocks adversarial input
context_aggregator.user(),
llm,
tts,
transport.output(),
context_aggregator.assistant(),
])
Detection categories
| Category | What it catches |
|---|---|
PROMPT_INJECTION |
"ignore previous instructions", developer mode, "repeat your system prompt" |
PII_EXTRACTION |
soliciting the agent to read back a card number, SSN, PIN, CVV |
POLICY_OVERRIDE |
"skip verification", "my manager authorized", manufactured urgency |
PII_LEAK |
outbound: Luhn-valid card numbers, SSN/PIN/CVV in the agent's response |
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for pipecat-firewall 0.1.0
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| pipecat_firewall-0.1.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 34.7 kB
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