Added code execution functionality for function block

tools/function/execute.ts

@@ -0,0 +1,85 @@
+import { ToolConfig, ToolResponse } from '../types'
+
+interface CodeExecutionInput {
+  code: Array<{content: string, id: string}> | string
+  input?: Record<string, any>  
+}
+
+interface CodeExecutionOutput extends ToolResponse {
+  output: Record<string, any>  
+}
+
+export const functionExecuteTool: ToolConfig<CodeExecutionInput, CodeExecutionOutput> = {
+  id: 'function.execute',
+  name: 'Function Execute',
+  description: 'Execute code in a sandboxed environment',
+  version: '1.0.0',
+  
+  params: {
+    code: {
+      type: 'string',
+      required: true,
+      description: 'The code to execute',
+    }
+  },
+
+  request: {
+    url: 'https://emkc.org/api/v2/piston/execute',
+    method: 'POST',
+    headers: () => ({
+      'Content-Type': 'application/json',
+      'Accept': 'application/json'
+    }),
+    body: (params) => {
+      const codeContent = Array.isArray(params.code)
+        ? params.code.map(c => c.content).join('\n')
+        : params.code;
+
+      return {
+        language: 'js',
+        version: '*',
+        files: [{
+          name: 'code.js',
+          content: codeContent
+        }],
+        stdin: '',
+        args: [],
+        compile_timeout: 10000,
+        run_timeout: 3000,
+        compile_memory_limit: -1,
+        run_memory_limit: -1
+      };
+    },
+  },
+
+  transformResponse: async (response) => {
+    const result = await response.json();
+    
+    if (!response.ok) {
+      throw new Error(result.message || 'Execution failed');
+    }
+
+    if (result.run?.stderr) {
+      throw new Error(result.run.stderr);
+    }
+
+    const stdout = result.run?.stdout || '';
+    
+    try {
+      // Try parsing the output as JSON
+      const parsed = JSON.parse(stdout);
+      return { output: parsed };
+    } catch {
+      // If not JSON, wrap it in a JSON object
+      return { 
+        output: { 
+          result: stdout 
+        } 
+      };
+    }
+  },
+
+  transformError: (error: any) => {
+    return error.message || 'Code execution failed';
+  },
+}