Add the incremental_tools feature flag (#50464)

Register `incremental_tools` as an under-development feature that is disabled by default, and expose it in the configuration schema for top-level and profile feature settings.

GitOrigin-RevId: 9579822c745e9fce598085bdc5ef8da6aabb06d7

codex-rs/core/config.schema.json

@@ -956,6 +956,9 @@
             "in_app_voice": {
               "type": "boolean"
             },
+            "incremental_tools": {
+              "type": "boolean"
+            },
             "instant_interrupt": {
               "type": "boolean"
             },
@@ -7108,6 +7111,9 @@
         "in_app_voice": {
           "type": "boolean"
         },
+        "incremental_tools": {
+          "type": "boolean"
+        },
         "instant_interrupt": {
           "type": "boolean"
         },

codex-rs/features/src/lib.rs

@@ -248,6 +248,8 @@ pub enum Feature {
     ToolSearchAlwaysDeferMcpTools,
     /// Describe deferred tool namespaces in the model-visible world state.
     DeferredToolWorldState,
+    /// Track top-level tool definitions in world state and emit incremental context updates.
+    IncrementalTools,
     /// Expose MCP model-visible namespaces without the legacy `mcp__` prefix.
     NonPrefixedMcpToolNames,
     /// Enable discoverable tool suggestions for apps.
@@ -1478,6 +1480,12 @@ pub const FEATURES: &[FeatureSpec] = &[
         stage: Stage::UnderDevelopment,
         default_enabled: false,
     },
+    FeatureSpec {
+        id: Feature::IncrementalTools,
+        key: "incremental_tools",
+        stage: Stage::UnderDevelopment,
+        default_enabled: false,
+    },
     FeatureSpec {
         id: Feature::NonPrefixedMcpToolNames,
         key: "non_prefixed_mcp_tool_names",