Unclear The finding lists the project-session rule explicitly but only names the other categories (machine credentials, routine/reminder-owning sessions, Cowork tasks, agent-owned sessions) without stating their specific refusal conditions.
What
- Claude Code adds many new error messages for cases where linking a 'computer' (a tool host) to a session should be refused, covering project sessions, machine credentials, routine- or reminder-owning sessions, Cowork tasks, and agent-owned sessions.
- A new local check (
We) verifies identity and session state before signing a connect request. - A new helper (
Ft) extracts and validates anattachServeRequest(containing aworkIdandenvironmentId, matched againstcse_/env_id patterns) from a host description, used to bind this data into the signed connection proof. attachServeRequestis also registered as a new settings-scope key, classified as apreference.
Why
This adds proper validation and clearer error reporting for the process of attaching a computer to a session, making it explicit which kinds of sessions are and aren't allowed to be linked this way.
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The finding lists the project-session rule explicitly but only names the other categories (machine credentials, routine/reminder-owning…