chore(doc): Fix example typo in 9.2 Basic Execution

[spricet]

Message Ids dont match in the example

Description

Message Ids dont match in the example. Just a small typo.

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Fixes #994 🦕

[gemini-code-assist]

Summary of Changes

Hello @spricet, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a minor documentation error by correcting a messageId within a JSON example in the docs/specification.md file. The change ensures the example accurately reflects consistent message IDs, improving the clarity and correctness of the "9.2 Basic Execution" section.

Highlights

• Documentation Fix: Corrected an inconsistent messageId in a JSON example located in docs/specification.md, specifically within the "9.2 Basic Execution" section, to resolve a typo and ensure example accuracy.

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[gemini-code-assist]

Code Review

This pull request aims to fix a typo in an example within the specification documentation. However, the change introduces an incorrect behavior in the example by making the request and response messageIds identical. According to the protocol specification, each message should have a unique messageId generated by its sender. I've added a comment to correct this.

[gemini-code-assist]

This change makes the messageId in the agent's response identical to the user's request messageId. This is incorrect according to the protocol specification.

The Message object's messageId field should be a unique identifier generated by the sender. In this scenario, the agent is the sender of the response message and should therefore generate its own unique messageId.

The previous value (363422be-b0f9-4692-a24d-278670e7c7f1) correctly demonstrated this behavior by being different from the request's ID. Using the same ID is misleading for developers implementing the protocol. Please use a different UUID for the response.

Suggested change

	"messageId": "9229e770-767c-417b-a0b0-f0741243c589",
	"messageId": "363422be-b0f9-4692-a24d-278670e7c7f1",

[spricet]

good to know! thanks!

[spricet]

The previous example is then confusing. It uses the message Id provided by the user

[darrelmiller]

@spricet The previous example responds with a Task which contains a history of messages sent by the user. In this case the messageId should match the one sent by the user because it is a copy of that same message.