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CLAIM C032 Supported 2026-10-31

GitHub issue #86014 in anthropics/claude-code, opened 2026-08-12 by lilysttail, records a report that cross-session send_message returned a success result to the sender while the message was never delivered to the target session and stayed loading in the desktop UI, with 4 of 4 sends in one evening showing success to the sender and 0 of 4 ever received by the target, in both busy and idle target states.

Verbatim Excerpts from Cited Records
“`send_message` (ccd_session_mgmt MCP, cross-session messaging) returns a success result to the sender”
— lilysttail · anthropics/claude-code (issue 86014 opening body, Bug section) · 2026-08-12T05:41:26Z ·GitHub Issue ↗
“but the message is never delivered to the target session.”
— lilysttail · anthropics/claude-code (issue 86014 opening body, Bug section) · 2026-08-12T05:41:26Z ·GitHub Issue ↗
“4/4 sends showed success to the sender, 0/4 were ever received by the target.”
— lilysttail · anthropics/claude-code (issue 86014 opening body, Bug section) · 2026-08-12T05:41:26Z ·GitHub Issue ↗
Counter-record: Issue was closed 2026-10-29 by github-actions[bot] as inactive for too long, an administrative closure, not a maintainer fix verdict; the closing comment invites a new issue if the behavior is still relevant. Surveyed comments include multiple same-day confirmations on 2026-08-12 pinning the regression to the 1.28929.0 desktop rollout, possible-duplicate pointers to issues 86067, 86012 and 86298, a 2026-08-19 report of recovery without any change on that commenter side, and later still-broken reports on 2026-08-20 (build 1.30096.5.0) and 2026-08-28 (Linux). The claim documents the original report and its thread, not a verified current state. Falsification probe: If issue #86014 is deleted without archive, if the author edits the opening body so the quoted lines no longer match verbatim, or if the author or maintainers post a definitive retraction showing the described behavior was mischaracterized, this claim drops to Withdrawn. Audit verification: Verified 100% continuous verbatim substring against official GitHub REST API by scripts/verify_claim_verbatim.py.