{"name":"CLAUDE_CODE_SESSION_BEGAN_AS_COPY","slug":"claude-code-session-began-as-copy","family":"env","title":"Environment variables","noun":"environment variable","description":"A hidden --session-began-as-copy option, sent by the server, stops --resume from continuing the copied session's last turn","description_source":"entry","described_by":{"version":"2.1.315","anchor":"hidden-session-began-as-copy-flag-server-sent"},"presence":{"first_seen":"2.1.315","removed_in":null,"in_current_build":true,"newest_mined":"2.1.315","builds":1,"mined_builds":155,"first_cited":{"version":"2.1.315","released_at":"2026-10-30 21:05:24","spans":1}},"aliases":[],"entries":[{"version":"2.1.315","anchor":"hidden-session-began-as-copy-flag-server-sent","heading":"Hidden option marks a session that began as a copy of another","line":"A hidden --session-began-as-copy option, sent by the server, stops --resume from continuing the copied session's last turn","released_at":"2026-10-30 21:05:24","reason":"found in this entry's text"},{"version":"2.1.315","anchor":"new-env-var-claude-code-session-began-as-copy-passed-through","heading":"New environment variable passed on to programs Claude Code starts","line":"Claude Code now passes a new variable, `CLAUDE_CODE_SESSION_BEGAN_AS_COPY`, on to the programs it starts","released_at":"2026-10-30 21:05:24","reason":"found in this entry's text, named in this entry"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_SESSION_","slug":"claude-code-session","description":"Two env vars let background dispatchers inherit your plan and rate tier without an API call."},{"name":"CLAUDE_CODE_SESSION_ACCESS_TOKEN","slug":"claude-code-session-access-token","description":"Remote settings can now supply many more environment variables, including auth tokens and home directory paths."},{"name":"CLAUDE_CODE_SESSION_ATTENDED","slug":"claude-code-session-attended","description":"A new CLAUDE_CODE_SESSION_ATTENDED environment variable tells child processes whether the parent session is interactive"},{"name":"CLAUDE_CODE_SESSION_ID","slug":"claude-code-session-id","description":"Skills from your claude.ai account can load as a source, but only if you set the sync env var."},{"name":"CLAUDE_CODE_SESSION_KIND","slug":"claude-code-session-kind","description":"You get a one-time warning line if a query names a model Claude Code does not recognise."},{"name":"CLAUDE_CODE_SESSION_LOG","slug":"claude-code-session-log","description":"Path recorded as `logPath` in the session's entry in Claude Code's concurrent sessions registry (the per-process pid file)."},{"name":"CLAUDE_CODE_SESSION_NAME","slug":"claude-code-session-name","description":"A blank CLAUDE_CODE_SESSION_NAME now falls back to the directory-derived name."},{"name":"CLAUDE_CODE_SESSION_ORIGIN","slug":"claude-code-session-origin","description":"A new CLAUDE_CODE_SESSION_ORIGIN environment variable is read and passed through to spawned subsessions."},{"name":"CLAUDE_CODE_SESSION_START_ANNOUNCEMENTS_BEFORE_PROMPT","slug":"claude-code-session-start-announcements-before-prompt","description":"A new env var lets session-start announcements be placed before the closing line in headless runs"},{"name":"CLAUDE_CODE_SESSIONEND_HOOKS_TIMEOUT_MS","slug":"claude-code-sessionend-hooks-timeout-ms","description":"Nonsense values in retry, MCP output and hook timeout env vars now fall back to defaults."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-session-began-as-copy","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}