| Local model runtime | agents.defaults.experimental.localModelLean | A smaller or stricter local backend chokes on FluffBuzz’s full default tool surface | Local Models |
| Memory search | agents.defaults.memorySearch.experimental.sessionMemory | You want memory_search to index prior session transcripts and accept the extra storage/indexing cost | Memory configuration reference |
| Structured planning tool | tools.experimental.planTool | You want the structured update_plan tool exposed for multi-step work tracking in compatible runtimes and UIs | Gateway configuration reference |