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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.234

plugin eval no longer swallows piped input

Use it now
Useful3 Signal2
Plugins not in their notes

Piping input into plugin eval now works because startup no longer captures that stdin first.

plugin eval
What

Startup now recognises a plugin eval invocation, alongside the non-REPL subcommands and mcp serve, and skips capturing early stdin so the input reaches the eval run instead. Unconditional in the CLI entry path.

Evidence

isPluginEvalInvocation

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.234 →