{"version":"2.1.287","anchor":"telemetrygrowthbook-env-vars-added-to-a-list-likely-env-al","canonical_anchor":"telemetrygrowthbook-env-vars-added-to-a-list-likely-env-al","heading":"Telemetry and feature-flag environment variables are gathered in a new list","tier":"internal","area":"Telemetry","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287\/e\/telemetrygrowthbook-env-vars-added-to-a-list-likely-env-al","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287","markdown":"### Telemetry and feature-flag environment variables are gathered in a new list\n\nClaude Code now keeps a list of the environment variables that affect telemetry and feature flags\n\n**Unclear.** What reads this list and what it is used for is not shown.\n\n**What**\n\nEnvironment variables are named values set outside Claude Code that change how it behaves. Claude Code now holds a list of these:\n\n- `NODE_ENV`\n\n- `DISABLE_GROWTHBOOK`\n\n- `DISABLE_TELEMETRY`\n\n- `DO_NOT_TRACK`\n\n- `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC`\n\n- `CLAUDE_CODE_GB_DISK_CACHE_WHEN_TELEMETRY_OFF`\n\n- `CLAUDE_CODE_PROVIDER_MANAGED_BY_HOST`\n\n- `CLAUDE_CODE_CUSTOM_OAUTH_URL`\n\n- `CLAUDE_INTERNAL_FC_OVERRIDES`\n\n**Why**\n\nThese are the variables that change usage reporting and feature-flag behaviour, so how this list is used matters to anyone relying on them to limit what Claude Code sends.\n\n- Area: Telemetry\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5"}