Skip to content

Clarify tasks/list behavior for public MCP servers without authentication #2054

@valentinbeggi

Description

@valentinbeggi

Hello

The spec states:

For tasks/list requests, receivers MUST ensure the returned task list includes only tasks associated with the requestor's authorization context.

And:

If context-binding is unavailable, receivers MUST generate cryptographically secure task IDs with enough entropy to prevent guessing

Question: For public MCP servers that don't implement authentication:

  1. What defines the "authorization context" - is it transport-level (e.g., connection/session ID)?
  2. If no auth context exists, does tasks/list return all tasks to any requestor?
  3. The fallback (cryptographic task IDs) only protects tasks/get from enumeration - but tasks/list would still expose all task metadata (status, timestamps, etc.)

Thank you,

Metadata

Metadata

Assignees

Labels

No labels
No labels

Type

No type

Projects

No projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions