Preserve thinking content for providers that require it

crates/goose-cli/src/commands/configure.rs

@@ -2108,6 +2108,7 @@ fn add_provider() -> anyhow::Result<()> {
         requires_auth,
         catalog_provider_id: None,
         base_path,
+        preserves_thinking: None,
     })?;
 
     cliclack::outro(format!("Custom provider added: {}", display_name))?;

crates/goose-sdk/src/custom_requests.rs

@@ -704,6 +704,7 @@ pub struct CustomProviderConfigDto {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub api_key_env: Option<String>,
     pub api_key_set: bool,
+    pub preserves_thinking: bool,
 }
 
 #[derive(Debug, Default, Clone, Serialize, Deserialize, JsonSchema)]
@@ -725,6 +726,8 @@ pub struct CustomProviderUpsertDto {
     pub catalog_provider_id: Option<String>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub base_path: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub preserves_thinking: Option<bool>,
 }
 
 /// Create a custom provider backed by Goose's declarative provider store.

crates/goose-server/src/routes/config_management.rs

@@ -102,6 +102,8 @@ pub struct UpdateCustomProviderRequest {
     pub catalog_provider_id: Option<String>,
     #[serde(default)]
     pub base_path: Option<String>,
+    #[serde(default)]
+    pub preserves_thinking: Option<bool>,
 }
 
 fn default_requires_auth() -> bool {
@@ -595,6 +597,7 @@ pub async fn create_custom_provider(
             requires_auth: request.requires_auth,
             catalog_provider_id: request.catalog_provider_id,
             base_path: request.base_path,
+            preserves_thinking: request.preserves_thinking,
         },
     )?;
 
@@ -687,6 +690,7 @@ pub async fn update_custom_provider(
             requires_auth: request.requires_auth,
             catalog_provider_id: request.catalog_provider_id,
             base_path: request.base_path,
+            preserves_thinking: request.preserves_thinking,
         },
     )?;
 

crates/goose/acp-schema.json

@@ -920,6 +920,12 @@
             "string",
             "null"
           ]
+        },
+        "preservesThinking": {
+          "type": [
+            "boolean",
+            "null"
+          ]
         }
       },
       "required": [
@@ -1111,6 +1117,9 @@
         },
         "apiKeySet": {
           "type": "boolean"
+        },
+        "preservesThinking": {
+          "type": "boolean"
         }
       },
       "required": [
@@ -1119,7 +1128,8 @@
         "displayName",
         "apiUrl",
         "requiresAuth",
-        "apiKeySet"
+        "apiKeySet",
+        "preservesThinking"
       ]
     },
     "CustomProviderUpdateRequest": {
@@ -1177,6 +1187,12 @@
             "string",
             "null"
           ]
+        },
+        "preservesThinking": {
+          "type": [
+            "boolean",
+            "null"
+          ]
         }
       },
       "required": [

crates/goose/src/acp/server/providers.rs

@@ -390,6 +390,7 @@ fn custom_provider_config_to_dto(
         base_path: config.base_path.clone(),
         api_key_env,
         api_key_set,
+        preserves_thinking: config.preserves_thinking,
     }
 }
 
@@ -513,6 +514,7 @@ impl GooseAcpAgent {
                 requires_auth: provider.requires_auth,
                 catalog_provider_id: provider.catalog_provider_id,
                 base_path: provider.base_path,
+                preserves_thinking: provider.preserves_thinking,
             },
         )
         .internal_err_ctx("Failed to create custom provider")?;
@@ -581,6 +583,7 @@ impl GooseAcpAgent {
                 requires_auth: provider.requires_auth,
                 catalog_provider_id: provider.catalog_provider_id,
                 base_path: provider.base_path,
+                preserves_thinking: provider.preserves_thinking,
             },
         )
         .internal_err_ctx("Failed to update custom provider")?;