feat: add documentation functions (#1831)

* feat: add docstring

* feat: add new docstring

* fix: linting

---------

Co-authored-by: João Moura <joaomdmoura@gmail.com>

src/crewai/project/annotations.py

@@ -4,18 +4,23 @@ from typing import Callable
 from crewai import Crew
 from crewai.project.utils import memoize
 
+"""Decorators for defining crew components and their behaviors."""
+
 
 def before_kickoff(func):
+    """Marks a method to execute before crew kickoff."""
     func.is_before_kickoff = True
     return func
 
 
 def after_kickoff(func):
+    """Marks a method to execute after crew kickoff."""
     func.is_after_kickoff = True
     return func
 
 
 def task(func):
+    """Marks a method as a crew task."""
     func.is_task = True
 
     @wraps(func)
@@ -29,43 +34,51 @@ def task(func):
 
 
 def agent(func):
+    """Marks a method as a crew agent."""
     func.is_agent = True
     func = memoize(func)
     return func
 
 
 def llm(func):
+    """Marks a method as an LLM provider."""
     func.is_llm = True
     func = memoize(func)
     return func
 
 
 def output_json(cls):
+    """Marks a class as JSON output format."""
     cls.is_output_json = True
     return cls
 
 
 def output_pydantic(cls):
+    """Marks a class as Pydantic output format."""
     cls.is_output_pydantic = True
     return cls
 
 
 def tool(func):
+    """Marks a method as a crew tool."""
     func.is_tool = True
     return memoize(func)
 
 
 def callback(func):
+    """Marks a method as a crew callback."""
     func.is_callback = True
     return memoize(func)
 
 
 def cache_handler(func):
+    """Marks a method as a cache handler."""
     func.is_cache_handler = True
     return memoize(func)
 
 
 def crew(func) -> Callable[..., Crew]:
+    """Marks a method as the main crew execution point."""
 
     @wraps(func)
     def wrapper(self, *args, **kwargs) -> Crew: