Cassandra – free tool to check if you got affected by the Cursor hack
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
Cassandra is a read-only shell script (and PowerShell equivalent) that checks macOS, Linux, and Windows machines for the published indicators of a backdoor in Claude Code extension versions 2.1.312 and 2.1.313, as described in Cursor's security notice.