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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.287 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.287 ·

Output-schema conversion warning now names tool types and shows the real error

The warning for an output schema that would not convert now starts with "tool types:" and reports the actual error

You'll notice Improvements
JSON All of v2.1.287
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1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
PluginsArea: what it touches
ImprovementsKind: in v2.1.287,
ImprovementsSection of the release
What

When Claude Code generates type definitions and a tool's output schema (the description of what a tool returns) cannot be converted, it shows a warning. That warning now starts with "tool types:" instead of "plugin-types:".

The old warning also printed the wrong value in place of the error. It now prints the error that actually occurred.

Why

The warning now says what went wrong and no longer points at the plugin-types command.

See this entry in the whole of v2.1.287 →

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