Feature Request: Allow passing an initial prompt/context to MCP server sessions

[Ronodeep]

Feature Request

It would be helpful to have a way to pass an initial prompt or context when starting a session with the MCP server. This would allow for better contextualization and more relevant responses from the server, especially for use cases where the initial context is important for downstream interactions.

Proposed Solution:

• Add support for an optional initial prompt/context parameter when starting a session (e.g., via an environment variable, command-line argument, or API field).
• Ensure this context is available to the server for the duration of the session.

Use Case:

• Users can provide background information, goals, or other relevant context at the start of a session, improving the quality of responses.

Thank you for considering this feature!

[phamalor315]

yes

[toby]

This isn't really part of the MCP spec, but there is a way to do this with VS Code. You can create a custom Copilot instruction and it can help a lot with tool selection. There is also the concept of Prompts in MCP that the server can expose for the user to use. That would be on a per-interaction basis though and not session based.

[phamalor315]

ok wow is cool
how make this github