{"version":"2.1.287","anchor":"new-env-var-claude-code-poll-event-declarations-added-to-an","canonical_anchor":"new-env-var-claude-code-poll-event-declarations-added-to-an","heading":"New environment variable name CLAUDE_CODE_POLL_EVENT_DECLARATIONS appears","tier":"internal","area":"Sessions","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287\/e\/new-env-var-claude-code-poll-event-declarations-added-to-an","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287","markdown":"### New environment variable name CLAUDE_CODE_POLL_EVENT_DECLARATIONS appears\n\nClaude Code now lists a CLAUDE_CODE_POLL_EVENT_DECLARATIONS environment variable, though what it does is not known\n\n**Unclear.** It is not clear what this variable controls or what the list it belongs to is for.\n\n**What**\n\nAn environment variable is a named value you set outside Claude Code, for example in your shell. A new one, `CLAUDE_CODE_POLL_EVENT_DECLARATIONS`, now appears in Claude Code alongside `CLAUDE_CODE_SYNC_SESSION_REFS` and other variables in the same group.\n\n**Why**\n\nNothing says what setting it does, so there is no known reason to set it yet.\n\n- Area: Sessions\n- Names: `CLAUDE_CODE_POLL_EVENT_DECLARATIONS`, `CLAUDE_CODE_SYNC_SESSION_REFS`\n- Tier: Under the hood\n- Useful: 3\/5\n- Signal: 4\/5"}