diff --git a/models.py b/models.py
index a657d2e..9633fdf 100644
--- a/models.py
+++ b/models.py
@@ -1,15 +1,15 @@
 """
 Pydantic models for structured output extraction.
 
-Two schemas:
-1. PersonInfo – name, optional age, profession, skills list.
-2. MeetingNotes – date, participants, topics, decisions, next_steps.
+Two schemas are defined:
+1. PersonInfo – information about a person.
+2. MeetingNotes – notes from a meeting.
 
-All fields have Field(description=...).
+Both models use `Field(description=...)` to provide clear field descriptions that LangChain can expose in the prompt.
 """
+
 from __future__ import annotations
 
-from datetime import date
 from typing import List, Optional
 
 from pydantic import BaseModel, Field
@@ -20,15 +20,27 @@ class PersonInfo(BaseModel):
     name: str = Field(..., description="Full name of the person")
     age: Optional[int] = Field(None, description="Age in years; optional if not mentioned")
     profession: str = Field(..., description="Primary occupation or role")
-    skills: List[str] = Field(..., description="List of technical or soft skills")
+    skills: List[str] = Field(
+        ...,
+        description="List of technical or soft skills the person possesses",
+    )
 
 class MeetingNotes(BaseModel):
     """Structured notes from a meeting extracted from free text."""
 
-    date: date = Field(..., description="Date of the meeting in ISO format (YYYY-MM-DD)")
-    participants: List[str] = Field(..., description="Names of attendees")
-    topics: List[str] = Field(..., description="Discussion topics covered during the meeting")
-    decisions: List[str] = Field(..., description="Decisions made during the meeting")
-    next_steps: List[str] = Field(..., description="Action items to be performed after the meeting")
+    date: str = Field(..., description="Date of the meeting in ISO format (YYYY-MM-DD)")
+    participants: List[str] = Field(
+        ..., description="Names of people who attended the meeting"
+    )
+    topics: List[str] = Field(
+        ...,
+        description="Main discussion topics covered during the meeting"
+    )
+    decisions: List[str] = Field(
+        ..., description="Decisions made during the meeting"
+    )
+    next_steps: List[str] = Field(
+        ..., description="Action items or follow‑up tasks after the meeting"
+    )
 
-# End of models.py
+__all__ = ["PersonInfo", "MeetingNotes"]