gopidesupavan opened a new pull request, #65485:
URL: https://github.com/apache/airflow/pull/65485
## Summary
Adds an opt-in `input_guard` parameter to `LLMOperator`, `AgentOperator`, and
`LLMFileAnalysisOperator` that uses Microsoft Presidio to sanitize PII and
other sensitive entities in text before it is sent to the model.
### What it does
- **Sanitizes** user prompt text, system instructions, and multi-turn message
history (via pydantic-ai `history_processors`) before each model call
- **Sanitizes** normalized file content in `LLMFileAnalysisOperator`
- **Supports four Presidio modes**: `replace` (default), `mask`, `redact`,
`hash`
- **Rejects binary multimodal attachments** by default when guarding is
enabled;
opt out with `attachment_policy="allow_unmodified"`
- **Logs sanitization summaries** (entity types and counts) at INFO;
optionally
logs a truncated sanitized preview with `log_sanitized_text=True`
### Usage
```python
LLMOperator(
task_id="safe_call",
prompt="Customer Jane Doe, [email protected], card 4111 1111 1111 1111",
llm_conn_id="pydanticai_default",
input_guard={
"enabled": True,
"entities": ["EMAIL_ADDRESS", "CREDIT_CARD", "PHONE_NUMBER"],
"mode": "replace",
},
)
```
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