[BUG] Can‘t set instructions dynamiclly

[huyannb]

Describe the Bug

code from https://mastra.ai/blog/dynamic-agents

const dynamicAgent = new Agent({
  tools: ({ runtimeContext }) => {
    // Use runtimeContext.get() to access variables
    const temperatureScale = runtimeContext.get("temperature-scale");
    return temperatureScale === "celsius" ? celsiusTools : fahrenheitTools;
  },
  **instructions: ({ runtimeContext }) => {
    const temperatureScale = runtimeContext.get("temperature-scale");
    return `You are assisting with ${temperatureScale} temperature.`;
  },**
  model: ({ runtimeContext }) => {
    return runtimeContext.get("preferFast")
      ? openai("gpt-4o-mini")
      : openai("gpt-4o");
  },
});

but instructions like this is invalid on mastra@0.9.0.

Steps To Reproduce

1. install latest mastra
2. set a dynamic agent followed by https://mastra.ai/blog/dynamic-agents
3. IDE will raise error

Expected Behavior

instructions should be able to declared dymanicly

Environment Information

None

Component

Agents

Code Snippet

const dynamicAgent = new Agent({
  tools: ({ runtimeContext }) => {
    // Use runtimeContext.get() to access variables
    const temperatureScale = runtimeContext.get("temperature-scale");
    return temperatureScale === "celsius" ? celsiusTools : fahrenheitTools;
  },
  **instructions: ({ runtimeContext }) => {
    const temperatureScale = runtimeContext.get("temperature-scale");
    return `You are assisting with ${temperatureScale} temperature.`;
  },**
  model: ({ runtimeContext }) => {
    return runtimeContext.get("preferFast")
      ? openai("gpt-4o-mini")
      : openai("gpt-4o");
  },
});

Error Logs

Additional Context

No response

Verification

• I have searched the existing issues to make sure this is not a duplicate
• I have included sufficient information for the team to reproduce and understand the issue

[axtgr]

Yep, it looks like dynamic agents aren't in the release at all.

[thomaslaberge]

You probably need the alpha versions look on npm to get the latest alpha