Updated Agent Tools (markdown)

Agent-Tools.md

@@ -9,26 +9,72 @@ These tools can be as straightforward as a search function or as sophisticated a
 - **Integration**: Tools can be integrated into agents to extend their capabilities beyond their basic functions.
 - **Customizability**: Developers can create custom tools tailored to the specific needs of their agents or use pre-built LangChain ones available in the ecosystem.
 
-## Implementing Tools
-
-Implementing a tool involves integrating it with an agent so it can be used to carry out tasks. For example, you might integrate SerpAPI as a tool for an agent that needs to perform web searches.
-
 # Creating and Assigning Tools
 
-To assign a tool to an agent, you'd provide it as part of the agent's properties during initialization. Below is a conceptual example:
+## Creating your own Tools
+
+You can easily create your own tool using [LangChain Tool Custom Tool Creation](https://python.langchain.com/docs/modules/agents/tools/custom_tools).
+
+Example:
+```python
+import json
+import requests
+from langchain.tools import tool
+from unstructured.partition.html import partition_html
+
+class BrowserTools():
+  @tool("Scrape website content")
+  def scrape_website(website):
+    """Useful to scrape a website content"""
+    url = f"https://chrome.browserless.io/content?token={config('BROWSERLESS_API_KEY')}"
+    payload = json.dumps({"url": website})
+    headers = {
+      'cache-control': 'no-cache',
+      'content-type': 'application/json'
+    }
+    response = requests.request("POST", url, headers=headers, data=payload)
+    elements = partition_html(text=response.text)
+    content = "\n\n".join([str(el) for el in elements])
+
+    # Return only the first 5k characters
+    return content[:5000]
+
+
+# Create an agent and assign the search tool
+agent = Agent(
+  role='Research Analyst',
+  goal='Provide up-to-date market analysis',
+  backstory='An expert analyst with a keen eye for market trends.',
+  tools=[BrowserTools().scrape_website]
+)
+```
+
+## Using Existing Tools
+
+Check [LangChain Integration](https://python.langchain.com/docs/integrations/tools/) for a set of useful existing tools.
+To assign a tool to an agent, you'd provide it as part of the agent's properties during initialization.
 
 ```python
 from crewai import Agent
-from langchain.tools import SerpAPI
+from langchain.agents import Tool
+from langchain.utilities import GoogleSerperAPIWrapper
 
-# Instantiate the SerpAPI tool
-serp_api_tool = SerpAPI(...)
+# Initialize SerpAPI tool with your API key
+os.environ["OPENAI_API_KEY"] = ""
 
-# Create an agent and assign the SerpAPI tool
+# Create tool to be used by agent
+serper_tool = Tool(
+  name="Intermediate Answer",
+  func=search.run,
+  description="useful for when you need to ask with search",
+)
+
+# Create an agent and assign the search tool
 agent = Agent(
-  role='Researcher',
-  goal='Gather market data',
-  tools=[serp_api_tool]
+  role='Research Analyst',
+  goal='Provide up-to-date market analysis',
+  backstory='An expert analyst with a keen eye for market trends.',
+  tools=[serper_tool]
 )
 ```