{"type":"analysis","id":"analysis:research-claude-code-sessions-can-message-each-other-as-a-shipped-anthropic-feature","slug":"research-claude-code-sessions-can-message-each-other-as-a-shipped-anthropic-feature","title":"Claude Code sessions can message each other as a shipped Anthropic feature","description":"Anthropic added cross-session messaging in Claude Code 2.1.224 on 7 August 2026. Independent sessions pass plain text through ListAgents and SendMessage; they do not share conversation history, files, or permission authority.","published_at":"2026-10-26T09:00:00.000Z","updated_at":"2026-10-26T09:00:00.000Z","record_date":"2026-10-26","topics":["claude","anthropic","claude_code","research"],"source_urls":["https://github.com/anthropics/claude-code/releases/tag/v2.1.224","https://code.claude.com/docs/en/whats-new/2026-w32","https://code.claude.com/docs/en/cross-session-messaging","https://code.claude.com/docs/en/whats-new","https://code.claude.com/docs/en/agent-teams","https://9to5mac.com/2026/08/07/claude-code-now-lets-sessions-talk-to-each-other-on-macos/","https://code.claude.com/docs/en/agents","https://github.com/anthropics/claude-code/releases/tag/v2.1.225","https://github.com/anthropics/claude-code/releases/tag/v2.1.234","https://github.com/anthropics/claude-code/releases/tag/v2.1.239","https://github.com/anthropics/claude-code/releases/tag/v2.1.248","https://github.com/anthropics/claude-code/issues/84726","https://code.claude.com/docs/en/changelog","https://www.macrumors.com/2026/08/08/claude-code-adds-cross-session-messaging/"],"language":"en","routes":{"html":"https://newruntime.com/analysis/research-claude-code-sessions-can-message-each-other-as-a-shipped-anthropic-feature/","markdown":"https://newruntime.com/analysis/research-claude-code-sessions-can-message-each-other-as-a-shipped-anthropic-feature.md","json":"https://newruntime.com/analysis/research-claude-code-sessions-can-message-each-other-as-a-shipped-anthropic-feature.json"},"author":{"role":"author","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"editorial_provenance":{"desk":"authorial","target_ref":"deep_research:b6a4107e-bc2a-4b7a-ae55-9db1b269a210","authorial_article_id":"b6a4107e-bc2a-4b7a-ae55-9db1b269a210"},"next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/anthropic/","url":"https://newruntime.com/topics/anthropic/","title":"Anthropic","reason":"Explore the anthropic topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/anthropic.md","json_url":"https://newruntime.com/topics/anthropic.json"},{"type":"topic","path":"/topics/claude-code/","url":"https://newruntime.com/topics/claude-code/","title":"Claude Code","reason":"Explore the claude_code topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude-code.md","json_url":"https://newruntime.com/topics/claude-code.json"},{"type":"collection","path":"/analysis/","url":"https://newruntime.com/analysis/","title":"Analysis","reason":"Open the latest authorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/analysis.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}