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PKU236: Missing Function Property

Error Message​

[PKU236] No valid 'func' property for [route|tool|resource|prompt|task|processor] '[name]'.

What Went Wrong​

Your wiring configuration is missing the required func property, or the function provided is not a valid pikkuFunc.

How to Fix​

Make sure you provide a valid pikkuFunc for your endpoint:

HTTP Route Example​

import { wireHTTP } from '@pikku/core/http'
import { pikkuFunc } from '#pikku'

const myHandler = pikkuFunc(async (input: { name: string }) => {
  return { message: `Hello ${input.name}` }
})

wireHTTP({
  method: 'post',
  route: '/api/greeting',
  func: myHandler, // ✅ Add this
})

MCP Tool Example​

import { addMCPTool } from '@pikku/core/mcp'
import { pikkuFunc } from '#pikku'

addMCPTool({
  name: 'myTool',
  description: 'Does something useful',
  func: pikkuFunc(async () => {
    // ✅ Add this
    return { result: 'success' }
  }),
})

Scheduled Task Example​

import { addSchedule } from '@pikku/core/scheduler'
import { pikkuFunc } from '#pikku'

addSchedule({
  schedule: '0 * * * *',
  func: pikkuFunc(async () => {
    // ✅ Add this
    // Run every hour
  }),
})

Common Mistakes​

  • Omitting the func property entirely
  • Providing a regular function instead of a pikkuFunc
  • Providing null or undefined as the function value
  • Misspelling func as function or handler
  • PKU559 - Function Metadata Not Found