The --resume flag now accepts session titles in addition to UUIDs, with fuzzy matching support.
Usage
# Resume by UUID (existing behavior)
claude --resume 550e8400-e29b-41d4-a716-446655440000
# Resume by session title (new)
claude --resume "my refactoring session"
# Also works with --print mode
claude -p --resume "my session title"
Details
When the provided value is not a valid UUID, Claude Code now searches for matching session titles
If multiple sessions match, the user is prompted to disambiguate with a list of matching session IDs
Error messages have been updated: "Error: --resume requires a valid session ID or session title when used with --print"
Evidence
Session title matching (search for "is not a UUID and does not match any session title")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeImproved claude -p --resume <name> to accept session titles set via /rename or --name
