feat: add message to ProgressNotification #435
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Added an optional message field to ProgressNotificationParams according to latest mcp spec.
Motivation and Context
Addressing #399 to add spec guidelines to sdk
How Has This Been Tested?
Added test_progress_notification to test messages bidirectionally. I'm hesitant that covers all angles so I'd like if someone could look over the test case a little more.
Breaking Changes
This did break test_176_progress_token, but it was over a schema check rather than implementation of the code (checking message=None since it's now an optional (default set to None) arg in fastmcp.server.report_progress().
Outside of test cases, no. Since the message field is optional, it shouldn't impact anything on release.
Types of changes
Checklist
Additional context
This is my first pull request to MCP (and honestly, to a codebase of this magnitude and quality). I’m incredibly excited to contribute, but also want to acknowledge that I might have missed some things. I’d really appreciate any extra scrutiny or tips reviewers can offer, especially around the test cases. Thanks in advance, and apologies if anything is off!