{"name":"CLAUDE_CODE_SUBAGENT_CONFIG_WARNING","slug":"claude-code-subagent-config-warning","family":"env","title":"Environment variables","noun":"environment variable","description":"A startup notice can warn when your CLAUDE.md, skills or agents push Claude to delegate to subagents, which may cost extra tokens","description_source":"entry","described_by":{"version":"2.1.295","anchor":"warning-when-user-config-pushes-claude-to-delegate-to-subage"},"presence":{"first_seen":"2.1.295","removed_in":null,"in_current_build":true,"newest_mined":"2.1.295","builds":1,"mined_builds":138,"first_cited":{"version":"2.1.295","released_at":"2026-10-08 18:22:58","spans":1}},"aliases":[],"entries":[{"version":"2.1.295","anchor":"warning-when-user-config-pushes-claude-to-delegate-to-subage","heading":"Claude Code can warn when your setup pushes Claude to use many helper agents","line":"A startup notice can warn when your CLAUDE.md, skills or agents push Claude to delegate to subagents, which may cost extra tokens","released_at":"2026-10-08 18:22:58","reason":"found in this entry's text"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_SUBAGENT_CACHE_EVICT","slug":"claude-code-subagent-cache-evict","description":"When true, turns on the `prompt-caching-evict-2026-05-12` beta for model requests marked `evictCacheOnComplete` that carry sticky betas, without consulting the `tengu_subagent_cache_evict` flag (default `false`). Provider checks still apply: it has no effect unless the request goes to the first-party API at a first-party base URL (or Claude Platform on AWS with no `ANTHROPIC_AWS_BASE_URL`), and not when `CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS` is set or HIPAA mode is active."},{"name":"CLAUDE_CODE_SUBAGENT_MODEL","slug":"claude-code-subagent-model","description":"Subagent model choice now records where the model came from, not just its name."},{"name":"CLAUDE_CODE_SUBAGENT_MODEL_FORCE","slug":"claude-code-subagent-model-force","description":"With the forced subagent model set, the workflow authoring reference drops its model-override guidance."},{"name":"CLAUDE_CODE_SUBAGENT_PROMPT_CACHE_TTL","slug":"claude-code-subagent-prompt-cache-ttl","description":"You can pin the prompt cache to five minutes or an hour, separately for subagents."},{"name":"CLAUDE_CODE_SUBAGENT_PROMPT_SNAPSHOT","slug":"claude-code-subagent-prompt-snapshot","description":null}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-subagent-config-warning","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}