Budibase/budibase · error · Error

AI prompt messages must be strings

Error message

AI prompt messages must be strings

What it means

Error "AI prompt messages must be strings" thrown in Budibase/budibase.

Source

Thrown at packages/server/src/sdk/workspace/ai/instructions.ts:46

  goal,
  toolReferences,
}: GenerateAgentInstructionsRequest) {
  const request = ai.generateOperationInstructionsPrompt({
    prompt,
    agentName,
    goal,
    toolReferences,
  })

  const systemMessage = request.messages.find(
    message => message.role === "system"
  )?.content
  const userMessage = request.messages.find(
    message => message.role === "user"
  )?.content

  if (typeof systemMessage !== "string" || typeof userMessage !== "string") {
    throw new Error("AI prompt messages must be strings")
  }

  const { chat, providerOptions } = await sdk.ai.llm.getDefaultLLMOrThrow()
  const result = await generateText({
    model: chat,
    instructions: systemMessage,
    prompt: userMessage,
    providerOptions: providerOptions?.(false),
  })

  const instructions = sanitizeInstructions(result.text || "")

  if (!instructions) {
    throw new Error("Failed to generate instructions")
  }

  return instructions
}

View on GitHub (pinned to a81a902e9a)

When it happens

Trigger: Thrown at packages/server/src/sdk/workspace/ai/instructions.ts:46 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Budibase/budibase@a81a902e9a (2026-08-29). Data as JSON: /api/errors/cdd237f2357faf17. Report an issue: GitHub.