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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.233 ·

Plugin eval stops the suite when authentication fails

A failed login stops the whole eval suite instead of wasting every case.

Nothing to try yet In Development
JSON All of v2.1.233
Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Plugin EvalArea: what it touches
In DevelopmentKind: in v2.1.233,
In DevelopmentSection of the release

Auth-failure abort and report banner for plugin eval, behind the early-access check.

What

An eval run that cannot authenticate, or whose credential is rejected before any case completes, now aborts the whole suite instead of burning every remaining case on the same broken credential. The HTML report banner explains the stop, the CLI prints "stopped: authentication failed", and the outcome is reported separately from the two existing partial reasons, a cost ceiling and interruption. plugin eval remains behind an early-access check.

Details
  • Individual case results carry an auth-rejected outcome with its own label in the run-status table.
  • The suite aborts once the first run comes back auth-rejected.
  • A new environment variable marks the child process spawned for the plugin eval init interview, and its presence suppresses report publishing.
  • The command's long description moved into the shared command-help table.
Evidence

A run could not authenticate (or the credential was rejected before any run), so the suite stopped before every case finished., a run could not authenticate \u2014 every remaining run would fail the same way, so the suite stops here. Fix the credential above and re-run., stopped: authentication failed

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

Read from
Names in the bundleplugin eval
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Added since A small documentation edit on Create and distribute a plugin marketplace touched a line naming plugin eval after this was published. Test your marketplace before sharing. Validation checks file structure; to test whether a plugin changes what Claude does on realistic prompts, run its eval suite with [`claude plugin eval`](/docs/en/plugin-evals) before you publish a new … plugin-marketplaces see the edit
Confirmed since Anthropic's documentation has since written up plugin eval, on Claude Code changelog. * Added `claude plugin eval`: run a plugin's eval suite against Claude Code and get scored, reproducible results (JSON + HTML report); see `claude plugin eval --help` changelog see the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up plugin eval, on Claude Code changelog.

See this entry in the whole of v2.1.233 →

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