Error: Unknown tool: canvas_post_to_discussion

[Brian-Two]

Issue Description:

I'm experiencing a technical problem with the Canvas MCP server integration. When trying to post to discussion boards through the API, I'm getting an "Unknown tool" error. Specifically, the canvas_post_to_discussion function is not being recognized by the system, even though other Canvas functions like listing courses and assignments are working properly.

What's happening:

• The Canvas connection itself is working fine (I can see courses, assignments, etc.)
• When attempting to post to discussions, the tool returns "Error: Unknown tool: canvas_post_to_discussion"
• This suggests there's a mismatch between the available tools and the function calls being made

Technical details:

• The function signature appears correct: canvas_post_to_discussion(course_id, topic_id, message)
• Other Canvas MCP functions are functioning normally
• This appears to be a server-side tool registration issue rather than a connection problem

Impact:

• Unable to automatically post discussion responses through the MCP integration
• Need to manually copy/paste responses into Canvas
• The integration is partially functional but missing key discussion posting capabilities

This seems like a configuration issue where the discussion posting tool wasn't properly registered or is named differently than expected in the MCP server setup.