fix: tool call counting

[mkultraWasHere]

Summary

• Added max_tool_calls config option to limit the number of tool calls an agent can make (defaults to -1 for unlimited)
• Agent tool call tracking wasnt exactly correct previously, it was enforced through generation steps which is not 1 to 1.
• Agent now tracks tool calls and raises Finish when limit is reached
• New max_tool_calls_reached stop reason and MaxToolCallsError for proper error reporting

---

Generated Summary:

• Introduced a new maximum tool calls limit for the Agent class.
• Added max_tool_calls attribute to specify the maximum allowed tool calls during execution, defaulting to infinite.
• Updated the core step loop to track the number of tool calls and raise MaxToolCallsError when the limit is reached.
• Modified error handling to account for the new maximum tool calls logic.
• Ensured the AgentStopReason type reflects the new possible state of max_tool_calls_reached.
• These changes enhance control over the agent's execution flow, particularly in scenarios where too many tool calls could be problematic.

This summary was generated with ❤️ by rigging

[Copilot]

Pull request overview

This PR introduces a new max_tool_calls configuration option for the Agent class to limit the number of tool calls an agent can make during execution. The feature includes proper error handling and reporting through a new stop reason and exception type.

• Added max_tool_calls attribute to the Agent class (defaults to -1 for unlimited)
• Implemented tool call counting and limit enforcement in the agent's execution loop
• Created MaxToolCallsError exception and max_tool_calls_reached stop reason for proper error reporting

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
dreadnode/agent/result.py	Added max_tool_calls_reached to the AgentStopReason literal type
dreadnode/agent/error.py	Introduced new MaxToolCallsError exception class for handling max tool call limit violations
dreadnode/agent/agent.py	Added max_tool_calls config option, tool call counter, and enforcement logic in the execution loop

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.