modelcontextprotocol / modelcontextprotocol/typescript-sdk
Request guidance/feature to stream streaming tool responses back
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- Dominant language
- TypeScript
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Description
Is your feature request related to a problem? Please describe.
Is it possible to stream streaming tool responses back?
If the tool sends back streaming chunks like
const res = await client.fetch(...)
for await (const chunk of res.body) {...}
is it possible to stream the chunks back immediately?
Describe the solution you'd like
Please provide a guidance on how to do this kind of streaming, or implement a new feature for that.
Describe alternatives you've considered
https://modelcontextprotocol.io/specification/2025-03-26/basic/utilities/progress provides a notification mechanism, but not all clients are using that.
Additional context
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No repository file or test is named in the issue. Start by locating the TypeScript SDK's tool-response handling and the client.fetch streaming example, then compare the desired behavior with the MCP progress-notification specification; done means agreeing on guidance or a defined feature that returns chunks immediately to clients.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- api
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100