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chore: add mypy prompt guard #2678

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Merged
ashwinb merged 1 commit into from
Aug 11, 2025
Merged

chore: add mypy prompt guard #2678

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11 changes: 8 additions & 3 deletions llama_stack/providers/inline/safety/prompt_guard/prompt_guard.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
RunShieldResponse,
Safety,
SafetyViolation,
ShieldStore,
ViolationLevel,
)
from llama_stack.apis.shields import Shield
Expand All @@ -32,6 +33,8 @@


class PromptGuardSafetyImpl(Safety, ShieldsProtocolPrivate):
shield_store: ShieldStore

def __init__(self, config: PromptGuardConfig, _deps) -> None:
self.config = config

Expand All @@ -53,7 +56,7 @@ async def run_shield(
self,
shield_id: str,
messages: list[Message],
params: dict[str, Any] = None,
params: dict[str, Any],
) -> RunShieldResponse:
shield = await self.shield_store.get_shield(shield_id)
if not shield:
Expand Down Expand Up @@ -117,8 +120,10 @@ async def run(self, messages: list[Message]) -> RunShieldResponse:
elif self.config.guard_type == PromptGuardType.jailbreak.value and score_malicious > self.threshold:
violation = SafetyViolation(
violation_level=ViolationLevel.ERROR,
violation_type=f"prompt_injection:malicious={score_malicious}",
violation_return_message="Sorry, I cannot do this.",
user_message="Sorry, I cannot do this.",
metadata={
"violation_type": f"prompt_injection:malicious={score_malicious}",
},
)

return RunShieldResponse(violation=violation)
1 change: 0 additions & 1 deletion pyproject.toml
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Expand Up @@ -266,7 +266,6 @@ exclude = [
"^llama_stack/providers/inline/post_training/common/validator\\.py$",
"^llama_stack/providers/inline/safety/code_scanner/",
"^llama_stack/providers/inline/safety/llama_guard/",
"^llama_stack/providers/inline/safety/prompt_guard/",
"^llama_stack/providers/inline/scoring/basic/",
"^llama_stack/providers/inline/scoring/braintrust/",
"^llama_stack/providers/inline/scoring/llm_as_judge/",
Expand Down
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