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[Paramveersingh-S]

PR: Fix Agent Wedge on Unresponsive Streams & Tool Executions

Fixes Issue #2381

Description

This PR addresses the issue where pi-agent-core can hang indefinitely if the underlying LLM provider stream stops yielding events without closing, or if a tool's execute() promise never resolves.

This introduces configurable timeouts for both boundaries:

• AgentLoopConfig.streamTimeoutMs: Timeouts the stream if no event is yielded. (Default 5 mins).
• AgentLoopConfig.toolTimeoutMs: Timeouts the overall tool execution. (Default 10 mins).
• AgentTool.timeoutMs: Override for specific tools.

If a timeout occurs, the stream or tool execution throws a timed-out error, allowing the loop to gracefully report the error to the UI and either continue or exit instead of hanging dead.

Changes

• Modified packages/agent/src/types.ts to add streamTimeoutMs and toolTimeoutMs to AgentLoopConfig, and timeoutMs to AgentTool.
• Modified packages/agent/src/agent-loop.ts to use Promise.race for timeouts on the assistant stream iterator.next() and tool execute().
• Added a regression test asserting the fail-closed behavior on timeout.

[github-actions]

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