feat: generate HITL form schema dynamically via LLM for guardrail escalations#919
Draft
dushyant-uipath wants to merge 1 commit into
Draft
feat: generate HITL form schema dynamically via LLM for guardrail escalations#919dushyant-uipath wants to merge 1 commit into
dushyant-uipath wants to merge 1 commit into
Conversation
…alations When a guardrail fires and triggers an escalation, the agent's own LLM now generates a HitlSchema from the full conversation context — system prompt, user request, and the offending tool call — using `model.with_structured_output(HitlSchema)`. The generated schema travels inline with the QuickForm task request (via `create_quickform_async`). No pre-deployed Action App is required. Implementation: - `EscalateAction` (agent graph path) gains an optional `model` field. When set, schema is generated dynamically; when absent, falls back to the existing static Action App path for backward compatibility. - `create_agent` injects the model into any `EscalateAction` in the guardrails list before wiring subgraphs — no API change for callers. - Middleware `EscalateAction` is unchanged (no state.messages access). Depends on: UiPath/uipath-python#1737 (HitlSchema types + QuickForm dispatch)
| _SCHEMA_GEN_PROMPT = SystemMessage( | ||
| "A guardrail policy was violated during the agent's tool execution. " | ||
| "Based on the conversation above — including the agent's purpose, the user's request, " | ||
| "and the tool call that triggered the violation — generate a human review form schema. " |
Contributor
There was a problem hiding this comment.
The violation can be triggered by 3 types of calls: tool, llm, agent.
Please consider all possible scopes
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
EscalateAction(agent graph path) now generates aHitlSchemaat escalation time usingmodel.with_structured_output(HitlSchema).ainvoke(state.messages + [prompt])create_quickform_async; no pre-deployed Action App requiredcreate_agentinjects the model into anyEscalateActionautomatically — no API change for callersEscalateActionis unchangedDepends on
UiPath/uipath-python#1737 must be merged and published before this PR can be fully functional (
uipath-platformversion constraint will be bumped after that lands).Design doc
https://uipath.atlassian.net/wiki/spaces/BPA/pages/90813301792/Dynamic+Schemas+for+Agent+Guardrail+Escalations
Test plan
uv run pytest tests/guardrails/ tests/agent/guardrails/— 458 passing🤖 Generated with Claude Code