llama-stack-mirror/llama_stack/providers/inline/agents/meta_reference/safety.py
Mustafa Elbehery 3f8df167f3
chore(pre-commit): add pre-commit hook to enforce llama_stack logger usage (#3061)
# What does this PR do?

This PR adds a step in pre-commit to enforce using `llama_stack` logger.

Currently, various parts of the code base uses different loggers. As a
custom `llama_stack` logger exist and used in the codebase, it is better
to standardize its utilization.

Signed-off-by: Mustafa Elbehery <melbeher@redhat.com>
Co-authored-by: Matthew Farrellee <matt@cs.wisc.edu>
2025-08-20 07:15:35 -04:00

52 lines
1.9 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
import asyncio
from llama_stack.apis.inference import Message
from llama_stack.apis.safety import Safety, SafetyViolation, ViolationLevel
from llama_stack.log import get_logger
from llama_stack.providers.utils.telemetry import tracing
log = get_logger(name=__name__, category="agents")
class SafetyException(Exception): # noqa: N818
def __init__(self, violation: SafetyViolation):
self.violation = violation
super().__init__(violation.user_message)
class ShieldRunnerMixin:
def __init__(
self,
safety_api: Safety,
input_shields: list[str] | None = None,
output_shields: list[str] | None = None,
):
self.safety_api = safety_api
self.input_shields = input_shields
self.output_shields = output_shields
async def run_multiple_shields(self, messages: list[Message], identifiers: list[str]) -> None:
async def run_shield_with_span(identifier: str):
async with tracing.span(f"run_shield_{identifier}"):
return await self.safety_api.run_shield(
shield_id=identifier,
messages=messages,
params={},
)
responses = await asyncio.gather(*[run_shield_with_span(identifier) for identifier in identifiers])
for identifier, response in zip(identifiers, responses, strict=False):
if not response.violation:
continue
violation = response.violation
if violation.violation_level == ViolationLevel.ERROR:
raise SafetyException(violation)
elif violation.violation_level == ViolationLevel.WARN:
log.warning(f"[Warn]{identifier} raised a warning")