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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Cross-session messages now record whether a plugin hook sent them

Messages sent between Claude Code sessions now note when a plugin hook, rather than a user, originated the send

Group of 2 Under the hood Internal Changes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MessagingArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release

What

The tool that sends messages between sessions (send_message / notify) now passes fromPlugin: r.hookCaller through when delivering a direct message, both over the UDS relay (sendToUdsSocket) and via postInterClaudeMessage. This lets the storage layer know whether a send was initiated by a plugin hook. The tool's send call was also wrapped with new retry/approval-carrying machinery (carryApproval, adoptReask).

Why

Tracking whether a cross-session message originated from a plugin hook helps distinguish automated, hook-driven messages from user-initiated ones, which matters for auditing, permissions, and correctly handling retries/approvals for plugin-originated sends.

See this entry in the whole of v2.1.280 →

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