fleet-memory/hindsight-api/hindsight_api/engine/reflect/models.py
Nicolò Boschi 4f2833873c
feat: introduce mental models (#132)
* mental models

* DRAFT: refactor entity observations

* fix db patch

* agentic

* agentic

* reflect agent

* new style

* more

* fix ci

* fix

* fix
2026-01-16 11:16:41 +01:00

114 lines
5.6 KiB
Python

"""
Pydantic models for the reflect agent.
"""
from typing import Any, Literal
from pydantic import BaseModel, Field
class MentalModelObservation(BaseModel):
"""An observation within a mental model with its supporting memories."""
title: str = Field(description="Observation header (can be empty for intro)")
text: str = Field(description="Observation content - no headers, use lists/tables/bold")
memory_ids: list[str] = Field(default_factory=list, description="Memory IDs supporting this observation")
class MentalModelInput(BaseModel):
"""Input for the learn tool to create a mental model placeholder.
The agent only specifies name and description - the actual content/observations
are generated during refresh, similar to pinned models.
"""
name: str = Field(description="Human-readable name for the mental model")
description: str = Field(description="What to track - used as prompt for content generation during refresh")
entity_id: str | None = Field(default=None, description="Optional link to existing entity ID")
class AnswerSection(BaseModel):
"""A section of the answer with its supporting evidence (DEPRECATED)."""
title: str = Field(description="Section header/title")
text: str = Field(description="Section content")
memory_ids: list[str] = Field(default_factory=list, description="Memory IDs supporting this section")
model_ids: list[str] = Field(default_factory=list, description="Mental model IDs supporting this section")
class ReflectAction(BaseModel):
"""Single action the reflect agent can take."""
tool: Literal["list_mental_models", "get_mental_model", "recall", "learn", "expand", "done"] = Field(
description="Tool to invoke: list_mental_models, get_mental_model, recall, learn, expand, or done"
)
# Tool-specific parameters
model_id: str | None = Field(default=None, description="Mental model ID for get_mental_model")
query: str | None = Field(default=None, description="Search query for recall")
max_tokens: int | None = Field(default=None, description="Max tokens for recall results (default 2048)")
mental_model: MentalModelInput | None = Field(default=None, description="Mental model to create/update for learn")
memory_ids: list[str] | None = Field(default=None, description="Memory unit IDs for expand (batched)")
depth: Literal["chunk", "document"] | None = Field(default=None, description="Expansion depth for expand")
sections: list[AnswerSection] | None = Field(default=None, description="DEPRECATED: Use answer field instead")
observations: list[MentalModelObservation] | None = Field(
default=None, description="Observations for done action (when output_mode=observations)"
)
# Plain text answer fields (for output_mode=answer)
answer: str | None = Field(default=None, description="Plain text answer for done action (no markdown)")
answer_memory_ids: list[str] | None = Field(
default=None, description="Memory IDs supporting the answer", alias="memory_ids"
)
answer_model_ids: list[str] | None = Field(
default=None, description="Mental model IDs supporting the answer", alias="model_ids"
)
reasoning: str | None = Field(default=None, description="Brief reasoning for this action")
class ReflectActionBatch(BaseModel):
"""Batch of actions for parallel execution."""
actions: list[ReflectAction] = Field(description="List of actions to execute in parallel")
class ToolCall(BaseModel):
"""A single tool call made during reflect."""
tool: str = Field(description="Tool name: lookup, recall, learn, expand")
input: dict = Field(description="Tool input parameters")
output: dict = Field(description="Tool output/result")
duration_ms: int = Field(description="Execution time in milliseconds")
iteration: int = Field(default=0, description="Iteration number (1-based) when this tool was called")
class LLMCall(BaseModel):
"""A single LLM call made during reflect."""
scope: str = Field(description="Call scope: agent_1, agent_2, final, etc.")
duration_ms: int = Field(description="Execution time in milliseconds")
class Observation(BaseModel):
"""A single observation with supporting memories."""
title: str = Field(description="Observation title/header")
text: str = Field(description="Observation content")
memory_ids: list[str] = Field(default_factory=list, description="Memory IDs supporting this observation")
class ReflectAgentResult(BaseModel):
"""Result from the reflect agent."""
text: str = Field(description="Final answer text")
observations: list[Observation] = Field(
default_factory=list, description="Structured observations (when output_mode=observations)"
)
structured_output: dict[str, Any] | None = Field(
default=None, description="Structured output parsed according to provided response_schema"
)
iterations: int = Field(default=0, description="Number of iterations taken")
tools_called: int = Field(default=0, description="Total number of tool calls made")
mental_models_created: list[str] = Field(default_factory=list, description="IDs of mental models created/updated")
tool_trace: list[ToolCall] = Field(default_factory=list, description="Trace of all tool calls made")
llm_trace: list[LLMCall] = Field(default_factory=list, description="Trace of all LLM calls made")
used_memory_ids: list[str] = Field(default_factory=list, description="Validated memory IDs actually used in answer")
used_model_ids: list[str] = Field(default_factory=list, description="Validated model IDs actually used in answer")