{"name":"CLAUDE_CODE_PROGRAM_USE_CASE_ID","slug":"claude-code-program-use-case-id","family":"env","title":"Environment variables","noun":"environment variable","description":"Set `CLAUDE_CODE_PROGRAM_USE_CASE_ID` and Claude Code can attach that use case ID to its requests, if the host accepts it","description_source":"entry","described_by":{"version":"2.1.317","anchor":"program-use-case-id-env-var-and-federated-possum-gate"},"presence":{"first_seen":"2.1.317","removed_in":null,"in_current_build":true,"newest_mined":"2.1.318","builds":2,"mined_builds":158,"first_cited":{"version":"2.1.317","released_at":"2026-11-02 23:57:53","spans":1}},"aliases":[],"entries":[{"version":"2.1.317","anchor":"program-use-case-id-env-var-and-federated-possum-gate","heading":"New CLAUDE_CODE_PROGRAM_USE_CASE_ID setting labels requests with a use case","line":"Set `CLAUDE_CODE_PROGRAM_USE_CASE_ID` and Claude Code can attach that use case ID to its requests, if the host accepts it","released_at":"2026-11-02 23:57:53","reason":"found in this entry's text, named in this entry"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_PROGRAM_USE_CASE_STAMPED","slug":"claude-code-program-use-case-stamped","description":"Claude Code now reads `CLAUDE_CODE_PROGRAM_USE_CASE_STAMPED`, which a launching program can set; the value `follow` picks a separate way of working out the use case"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-program-use-case-id","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}