afterCompletion hook for tool runs and structured output streaming fixes let you intercept async operations and reliably parse partial responses without stalling.
June 29, 2026
Summary
Tool pipelines now have explicit lifecycle control, and the streaming parser fixes for whitespace and incomplete structured outputs eliminate silent failures in production agentic workflows.
Why it matters
Tool pipelines now have explicit lifecycle control, and the streaming parser fixes for whitespace and incomplete structured outputs eliminate silent failures in production agentic workflows.
Implementation verdict
Drop-in upgrade. afterCompletion hook replaces manual promise-wrapping patterns; streaming parser fixes are transparent. Requires zero config changes. Upgrade immediately if you stream structured outputs or chain tools.
Sources
Dev Signal
Get briefs like this in your inbox — free, every weekday.
100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.