{"version":"2.1.97","anchor":"subagent-model-downgrade-opus-to-sonnet-in-development","canonical_anchor":"subagent-model-downgrade-opus-to-sonnet-in-development","heading":"Subagent Model Downgrade: Opus to Sonnet [In Development]","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.97\/e\/subagent-model-downgrade-opus-to-sonnet-in-development","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.97","markdown":"### Subagent Model Downgrade: Opus to Sonnet [In Development]\n\n**What**\n\nWhen enabled, this feature automatically downgrades Opus model usage for sub-agents to Sonnet, potentially reducing costs for agentic workflows.\n\n**Status**\n\nFeature-flagged (disabled by default)\n\n**Details**\n\n- Gated behind `tengu_garnet_loom` flag with default `!1` (false)\n- When active and the current model includes \"opus\", it substitutes a Sonnet model\n- Likely intended to balance cost vs. capability for Task sub-agents\n\n**Evidence**\n\nFlag check `R8(\"tengu_garnet_loom\", !1)` that downgrades opus to sonnet (search for `\"tengu_garnet_loom\"`)"}