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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

Claude Code v2.1.286 ·

Impossible agent schemas in workflows are handled as before

The workflow check for agent output formats that can never be met behaves the same as in the previous build

Under the hood Internal Changes
JSON All of v2.1.286
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
WorkflowsArea: what it touches
Internal ChangesKind: in v2.1.286,
Internal ChangesSection of the release
What

In workflows, an agent can be given a schema, a required shape for its output. If that shape can never be met, Claude Code stops with an error when a server setting is on, and otherwise only logs a warning. When the server sends nothing, the setting falls back to on. Apart from internal renaming, this code is the same as before.

Why

Nothing about this behaviour differs for you in this release.

Read from
Feature flag
tengu_workflow_schema_lint_enforce Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.286: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.286. It isn't a statement about your account. What a flag value here can and cannot tell you

See this entry in the whole of v2.1.286 →

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