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Sweep 01 Oct 2026 · 17:27Z Build v2.1.287 508 read Stable v2.1.285 Latest v2.1.287 Next v2.1.287 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.286 ·

Workflow progress sent to SDK programs can hide more script details

When set, the option withholdScriptFromSdkEvents replaces workflow phase titles with numbers and scrubs agent details from SDK progress events

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4Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
WorkflowsArea: what it touches
ImprovementsKind: in v2.1.286,
What probably matters to youSection of the release
What

Programs built with the SDK (the kit for running Claude Code from other software) receive progress events while a workflow runs. An option that hides the workflow's script from those events has been renamed from serverAuthoredScript to withholdScriptFromSdkEvents, and it now hides more. When it is set:

  • Phase titles are replaced with "phase" and a number.
  • Details about each agent are scrubbed.

Before, only the prompt preview was removed.

Why

This stops the contents of workflow scripts written on the server from reaching SDK programs through progress events.

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Names in the bundlewithholdScriptFromSdkEvents
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not known what sets this option.

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