bug: role error blocking browser session execution

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
aws, python
Domain
cloud, security

Research direction

Start with labs/module4/notebooks/5_agentcore_tool_browser.ipynb at cell 13 and inspect the permissions for agentcore-bastion-role. Reproduce the browser request and verify that the StartBrowserSession authorization error is resolved.

Written by the indexing model from the issue text.

Description

Issue 13: role error blocking browser session execution

Where: labs/module4/notebooks/5_agentcore_tool_browser.ipynb | Cell#13

Error:

Received browser tool request: apple watch series 10 price
Tool response: id='tooluse_E1tganzYSGizdwfWfQ_Yew' content=[TextContent(type='text', text="{'messages': [{'role': 'tool', 'content': 'The agent has started a background web search. This may take a moment.'}]}")] isError=False
Error during background browser task: An error occurred (AccessDeniedException) when calling the StartBrowserSession operation: User: arn:aws:sts::625903560744:assumed-role/agentcore-bastion-role/i-0106e64b8d067b836 is not authorized to perform: bedrock-agentcore:StartBrowserSession on resource: arn:aws:bedrock-agentcore:us-east-1:aws:browser/aws.browser.v1 because no identity-based policy allows the bedrock-agentcore:StartBrowserSession action
{
  "role": "assistant",
  "content": [
    {
      "type": "text",
      "text": "I've started a background search to find the price of the Apple Watch Series 10. Please wait a moment while I retrieve the information."
    }
  ],
  "tool_calls": [],
  "tool_results": [],
  "timestamp": 1767851249.342153
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