chore!: set Agent property load_tools_from_directory to default to False

[dbschmigelski]

BREAKING CHANGE: load_tools_from_directory will now default to False

Description

This PR updates the Agent property load_tools_from_directory to default to False instead of True.

This is being done to prevent a threat where an Agent has file write access which is then prompt injected to generate a tool which gets used by the Agent on subsequent runs. Auto loading of tools is a useful feature, but one which introduces new risks which may not be obvious to customers. Instead, we will default to False where customers will need to diliberately set the boolean to use the feature.

Related Issues

strands-agents/agent-builder#38

Documentation PR

N/A

Type of Change

Breaking change

Testing

How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

• I ran hatch run prepare

Checklist

• I have read the CONTRIBUTING document
• I have added any necessary tests that prove my fix is effective or my feature works
• I have updated the documentation accordingly
• I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
• My changes generate no new warnings
• Any dependent changes have been merged and published

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[Unshure]

Do we need docs changes to go along with this?