Include original tool call in malformed spawn/set_output tool call

Author: jahooma

packages/agent-runtime/src/tools/handlers/tool/set-output.ts

@@ -61,7 +61,11 @@ export const handleSetOutput = (async (params: {
         const prefix = usedData
           ? 'Output validation error: Your output was found inside the `data` field but still failed validation. Please fix the issues and try again without wrapping in `data`. Issues: '
           : 'Output validation error: Output failed to match the output schema and was ignored. You might want to try again! Issues: '
-        const errorMessage = `${prefix}${bestError}`
+        const outputStr = JSON.stringify(output, null, 2)
+        const truncatedOutput = outputStr.length > 500
+          ? outputStr.slice(0, 500) + '...(truncated)'
+          : outputStr
+        const errorMessage = `${prefix}${bestError}\n\nOriginal output value:\n${truncatedOutput}`
         logger.error(
           {
             output,

packages/agent-runtime/src/tools/handlers/tool/spawn-agent-utils.ts

@@ -221,8 +221,12 @@ export function validateAgentInput(
   if (inputSchema.prompt) {
     const result = inputSchema.prompt.safeParse(prompt ?? '')
     if (!result.success) {
+      const promptStr = JSON.stringify(prompt ?? '', null, 2)
+      const truncatedPrompt = promptStr.length > 500
+        ? promptStr.slice(0, 500) + '...(truncated)'
+        : promptStr
       throw new Error(
-        `Invalid prompt for agent ${agentType}: ${JSON.stringify(result.error.issues, null, 2)}`,
+        `Invalid prompt for agent ${agentType}: ${JSON.stringify(result.error.issues, null, 2)}\n\nOriginal prompt value:\n${truncatedPrompt}`,
       )
     }
   }
@@ -231,8 +235,12 @@ export function validateAgentInput(
   if (inputSchema.params) {
     const result = inputSchema.params.safeParse(params ?? {})
     if (!result.success) {
+      const paramsStr = JSON.stringify(params ?? {}, null, 2)
+      const truncatedParams = paramsStr.length > 500
+        ? paramsStr.slice(0, 500) + '...(truncated)'
+        : paramsStr
       throw new Error(
-        `Invalid params for agent ${agentType}: ${JSON.stringify(result.error.issues, null, 2)}`,
+        `Invalid params for agent ${agentType}: ${JSON.stringify(result.error.issues, null, 2)}\n\nOriginal params value:\n${truncatedParams}`,
       )
     }
   }