DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
Session-in-use checks list every process holding the session, not just the first.
What's wrong with this entry?
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What
When Claude Code checks whether another running session already holds a session id, it now reports all of them with their process ids, instead of stopping at the first one. Interactive sessions that have parked their work are skipped.
Details
Each result carries the session kind, its job id and its pid.
Evidence
listAllLiveSessions()
Strings lifted out of the shipped bundle, so the claim above can be checked against them.