What
The claude plugin eval command can now export its results as a styled HTML report, optionally published as a private artifact on claude.ai.
Usage
claude plugin eval --report results.html # write HTML to a local file
claude plugin eval --publish-report # publish to claude.ai and print the link
claude plugin eval --json results.json # existing flag, unchangedDetails
--report <path>writes a self-contained HTML file with per-case scores, prompts, grader verdicts, and summary statistics.--publish-reportuploads the HTML as a private artifact and prints the URL. Publishing is unavailable when claude.ai artifacts are turned off for the account or provider.- If the run is interrupted before all cases finish, the report is skipped rather than written with incomplete data.
--max-cost-usdceiling is reported when it cuts the run short.
Evidence
New flag strings (search for "--publish-report" and "Write a self-contained HTML report (scores, prompts, grader verdicts) to <path>")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.