Strip error responses from processed spec

Only keep 2xx/default responses — error schemas (401, 404, etc.)
are identical boilerplate on every endpoint and waste context.

Full CNAP spec: ~58K → ~26K tokens (56% reduction)
Single endpoint: ~990 → ~358 tokens (64% reduction)

Bump version to 0.1.3.

Author: robinbraemer

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@robinbraemer/codemode",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "Code Mode MCP tools from OpenAPI specs. Two tools (search + execute) replace hundreds of individual MCP tools.",
   "type": "module",
   "main": "./dist/index.js",

src/spec.ts

@@ -75,7 +75,7 @@ interface OperationObject {
   tags?: string[];
   parameters?: unknown;
   requestBody?: unknown;
-  responses?: unknown;
+  responses?: Record<string, unknown>;
 }
 
 /**
@@ -128,6 +128,16 @@ export function processSpec(
     for (const method of HTTP_METHODS) {
       const op = pathItem[method];
       if (op) {
+        // Only keep success responses (2xx) — error schemas are redundant noise
+        const successResponses: Record<string, unknown> = {};
+        if (op.responses) {
+          for (const [status, resp] of Object.entries(op.responses)) {
+            if (status.startsWith("2") || status === "default") {
+              successResponses[status] = resp;
+            }
+          }
+        }
+
         paths[fullPath][method] = {
           summary: op.summary,
           description: op.description,
@@ -145,7 +155,7 @@ export function processSpec(
             maxRefDepth,
           ),
           responses: resolveRefs(
-            op.responses,
+            Object.keys(successResponses).length > 0 ? successResponses : op.responses,
             spec as Record<string, unknown>,
             undefined,
             maxRefDepth,