feat: Implement the core system of typed hooks & callbacks #304
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Unshure
reviewed
Jun 30, 2025
Relates to strands-agents#231 Add the HookRegistry and a small subset of events (AgentInitializedEvent, StartRequestEvent, EndRequestEvent) as a POC for how hooks will work.
To make it super explicit that they are subject-to-change on a whim
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Description
Add the HookRegistry and a small subset of events (AgentInitializedEvent, StartRequestEvent, EndRequestEvent) as a POC for how hooks will work.
This is intentionally only a subset of events listed as called out in #231 (comment) because I wanted to focus on the overall idea rather than the specific events. Follow-up PRs will focus on adding/implementing additional events.
Hooks are not yet publicly exposed to prevent builders from starting to rely on it.
Related Issues
#231
Documentation PR
N/A - will work on docs after more events are added/plumbed through
Type of Change
New feature
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
hatch run prepareChecklist
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