Trigger at_exit when an agent crashes

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 74.07407% with 7 lines in your changes missing coverage. Please review.

Project coverage is 62.37%. Comparing base (eccdbb2) to head (f2a208b).

Files	Patch %	Lines
tests/agent/agent_test.py	69.56%	7 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #777 +/- ## ========================================== + Coverage 62.34% 62.37% +0.02% ========================================== Files 339 339 Lines 14063 14090 +27 ========================================== + Hits 8767 8788 +21 - Misses 5296 5302 +6 ```

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