fix(error): Add human readable titles for error code variants (#367)

Author: benbrandt

schema/schema.json

@@ -978,42 +978,49 @@
           "const": -32700,
           "description": "**Parse error**: Invalid JSON was received by the server.\nAn error occurred on the server while parsing the JSON text.",
           "format": "int32",
+          "title": "Parse error",
           "type": "integer"
         },
         {
           "const": -32600,
           "description": "**Invalid request**: The JSON sent is not a valid Request object.",
           "format": "int32",
+          "title": "Invalid request",
           "type": "integer"
         },
         {
           "const": -32601,
           "description": "**Method not found**: The method does not exist or is not available.",
           "format": "int32",
+          "title": "Method not found",
           "type": "integer"
         },
         {
           "const": -32602,
           "description": "**Invalid params**: Invalid method parameter(s).",
           "format": "int32",
+          "title": "Invalid params",
           "type": "integer"
         },
         {
           "const": -32603,
           "description": "**Internal error**: Internal JSON-RPC error.\nReserved for implementation-defined server errors.",
           "format": "int32",
+          "title": "Internal error",
           "type": "integer"
         },
         {
           "const": -32000,
           "description": "**Authentication required**: Authentication is required before this operation can be performed.",
           "format": "int32",
+          "title": "Authentication required",
           "type": "integer"
         },
         {
           "const": -32002,
           "description": "**Resource not found**: A given resource, such as a file, was not found.",
           "format": "int32",
+          "title": "Resource not found",
           "type": "integer"
         },
         {

schema/schema.unstable.json

@@ -1074,48 +1074,56 @@
           "const": -32700,
           "description": "**Parse error**: Invalid JSON was received by the server.\nAn error occurred on the server while parsing the JSON text.",
           "format": "int32",
+          "title": "Parse error",
           "type": "integer"
         },
         {
           "const": -32600,
           "description": "**Invalid request**: The JSON sent is not a valid Request object.",
           "format": "int32",
+          "title": "Invalid request",
           "type": "integer"
         },
         {
           "const": -32601,
           "description": "**Method not found**: The method does not exist or is not available.",
           "format": "int32",
+          "title": "Method not found",
           "type": "integer"
         },
         {
           "const": -32602,
           "description": "**Invalid params**: Invalid method parameter(s).",
           "format": "int32",
+          "title": "Invalid params",
           "type": "integer"
         },
         {
           "const": -32603,
           "description": "**Internal error**: Internal JSON-RPC error.\nReserved for implementation-defined server errors.",
           "format": "int32",
+          "title": "Internal error",
           "type": "integer"
         },
         {
           "const": -32800,
           "description": "**Request cancelled**: **UNSTABLE**\n\nThis capability is not part of the spec yet, and may be removed or changed at any point.\n\nExecution of the method was aborted either due to a cancellation request from the caller or\nbecause of resource constraints or shutdown.",
           "format": "int32",
+          "title": "Request cancelled",
           "type": "integer"
         },
         {
           "const": -32000,
           "description": "**Authentication required**: Authentication is required before this operation can be performed.",
           "format": "int32",
+          "title": "Authentication required",
           "type": "integer"
         },
         {
           "const": -32002,
           "description": "**Resource not found**: A given resource, such as a file, was not found.",
           "format": "int32",
+          "title": "Resource not found",
           "type": "integer"
         },
         {

src/error.rs

@@ -255,6 +255,7 @@ fn error_code_transform(schema: &mut Schema) {
         .as_str()
         .expect("Unexpected type for description")
         .to_owned();
+    schema.insert("title".into(), code.to_string().into());
     description.insert_str(0, &format!("**{code}**: "));
     schema.insert("description".into(), description.into());
     schema.insert("const".into(), i32::from(code).into());