251 lines
7.2 KiB
Python
251 lines
7.2 KiB
Python
"""PydanticAI Agent for Opus Orchestrator.
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Provides structured output validation and agent expertise using PydanticAI.
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"""
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import os
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from typing import Any, Optional, Type
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from pydantic import BaseModel
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from pydantic_ai import Agent
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from dotenv import load_dotenv
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from opus_orchestrator.config import get_config
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def get_pydanticai_model() -> str:
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"""Get the model name for PydanticAI.
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Returns:
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Model string for PydanticAI
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"""
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config = get_config()
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# Map our config to PydanticAI model names
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if config.agent.provider == "openai":
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return "openai:gpt-4o"
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elif config.agent.provider == "anthropic":
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return "anthropic:claude-3-5-sonnet-20241022"
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else:
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return "openai:gpt-4o"
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class OpusPydanticAgent:
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"""PydanticAI-powered agent with structured output validation.
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This agent ensures all outputs conform to defined schemas,
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providing type-safe, validated responses.
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"""
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def __init__(
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self,
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result_type: Optional[Type[BaseModel]] = None,
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model: Optional[str] = None,
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system_prompt: Optional[str] = None,
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):
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"""Initialize the PydanticAI agent.
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Args:
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result_type: Pydantic model for structured output
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model: Override model name
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system_prompt: System prompt for the agent
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"""
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self.config = get_config()
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self.model = model or get_pydanticai_model()
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self.result_type = result_type
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self.system_prompt = system_prompt
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# Create the PydanticAI agent
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self._agent: Optional[Agent] = None
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self._setup_agent()
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def _setup_agent(self) -> None:
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"""Set up the PydanticAI agent."""
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model = self.model
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# Build system prompt
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system_prompt = self.system_prompt or """You are an expert writer and editor for Opus Orchestrator.
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You produce high-quality, structured output that conforms to the given schema.
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Always follow best practices for the content type you're creating."""
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if self.result_type:
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self._agent = Agent(
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model=model,
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output_type=self.result_type,
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system_prompt=system_prompt,
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)
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else:
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self._agent = Agent(
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model=model,
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system_prompt=system_prompt,
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)
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async def run(self, prompt: str) -> BaseModel | str:
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"""Run the agent with a prompt.
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Args:
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prompt: User prompt
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Returns:
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Structured result or string
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"""
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if not self._agent:
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self._setup_agent()
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if self.result_type:
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result = await self._agent.run(prompt)
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return result.output
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else:
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result = await self._agent.run(prompt)
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return result.output
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def run_sync(self, prompt: str) -> BaseModel | str:
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"""Run the agent synchronously.
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Args:
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prompt: User prompt
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Returns:
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Structured result or string
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"""
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import asyncio
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if not self._agent:
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self._setup_agent()
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if self.result_type:
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result = asyncio.run(self._agent.run(prompt))
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return result.output
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else:
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result = asyncio.run(self._agent.run(prompt))
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return result.output
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# =============================================================================
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# SCHEMAS FOR STRUCTURED OUTPUT
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# =============================================================================
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class StorySeed(BaseModel):
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"""Structured story seed output."""
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one_sentence: str
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one_paragraph: str
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genre: str
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target_audience: str
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tone: str
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themes: list[str]
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class CharacterProfile(BaseModel):
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"""Character profile schema."""
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name: str
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role: str # protagonist, antagonist, supporting
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description: str
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motivations: list[str]
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flaws: list[str]
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backstory: str
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arc: str # character transformation
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class ChapterOutline(BaseModel):
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"""Chapter outline schema."""
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chapter_number: int
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title: str
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summary: str
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pov_character: str
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key_events: list[str]
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setting: str
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chapter_goal: str
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chapter_resolution: str
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class ChapterDraft(BaseModel):
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"""Chapter draft schema."""
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chapter_number: int
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title: str
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content: str
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word_count: int
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pov: str
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tone: str
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key_moments: list[str]
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dialogue_snippets: list[str]
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class CritiqueResult(BaseModel):
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"""Critique result schema."""
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score: float # 0.0 - 1.0
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strengths: list[str]
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weaknesses: list[str]
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suggestions: list[str]
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verdict: str # APPROVED, MINOR_REVISIONS, MAJOR_REVISIONS
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class StyleGuide(BaseModel):
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"""Style guide schema."""
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tone: str
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voice: str
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vocabulary_level: str
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sentence_structure: str
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pacing: str
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dialogue_style: str
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description_style: str
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prohibited_elements: list[str]
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# =============================================================================
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# FACTORY FUNCTIONS
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# =============================================================================
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def create_story_seed_agent() -> OpusPydanticAgent:
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"""Create agent for generating story seeds."""
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return OpusPydanticAgent(
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result_type=StorySeed,
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system_prompt="""You are a story architect expert. Create detailed story seeds
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that capture the essence of a story concept. Include genre, audience, tone, and themes.""",
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)
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def create_character_agent() -> OpusPydanticAgent:
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"""Create agent for generating character profiles."""
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return OpusPydanticAgent(
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result_type=CharacterProfile,
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system_prompt="""You are a character development expert. Create rich, detailed
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character profiles with clear motivations, flaws, and arcs. Make characters feel real.""",
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)
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def create_chapter_outline_agent() -> OpusPydanticAgent:
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"""Create agent for generating chapter outlines."""
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return OpusPydanticAgent(
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result_type=ChapterOutline,
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system_prompt="""You are a plot structure expert. Create detailed chapter outlines
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with clear goals, events, and resolutions. Ensure pacing works for the genre.""",
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)
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def create_chapter_draft_agent() -> OpusPydanticAgent:
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"""Create agent for writing chapter drafts."""
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return OpusPydanticAgent(
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result_type=ChapterDraft,
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system_prompt="""You are an expert fiction writer. Write compelling, well-paced
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chapters that follow the outline while adding rich detail, dialogue, and description.""",
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)
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def create_critique_agent() -> OpusPydanticAgent:
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"""Create agent for critiquing content."""
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return OpusPydanticAgent(
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result_type=CritiqueResult,
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system_prompt="""You are an expert literary critic. Evaluate content objectively,
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providing constructive feedback. Score honestly - don't inflate scores. Be specific.""",
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)
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def create_style_guide_agent() -> OpusPydanticAgent:
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"""Create agent for generating style guides."""
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return OpusPydanticAgent(
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result_type=StyleGuide,
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system_prompt="""You are an expert editor. Create comprehensive style guides
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that capture the voice and tone of the intended work. Be specific and actionable.""",
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)
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