Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.275 ·

Plugin API: ui.log gains a to destination field

Plugin ui.log gains a to field to route output to the transcript or a debug-only log

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AreaPlugin APIwhat it touches
KindNew Featuresin v2.1.275,
Use it now Notable No documentation found

Plugin ui.log gains a to field to route output to the transcript or a debug-only log

What

The ui.log operation, which plugins use to write log output, now accepts a to parameter that chooses where the text goes: either the normal visible UI log ("transcript") or a debug-only log line. Previously, ui.log always appended to the visible UI log.

Why

This lets plugin authors send diagnostic or debug output to a separate debug log instead of cluttering the visible transcript that users see.

Read from
Names in the bundleui.log

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