MCP Embedded UI — Roadmap

Planned improvements not yet implemented.

Tool Grouping (Namespace)

MCP tools often use / or . delimiters for namespacing (e.g. image/resize, file/read). The current flat list does not scale well for servers with many namespaced tools.

Plan: Group tools by the first segment of their name, with collapsible group headers showing the count of tools in each group.

▶ image (3 tools)
  ├ image/resize
  ├ image/crop
  └ image/compress
▶ file (2 tools)
  ├ file/read
  └ file/write

Blocked on: Confirming the naming convention (/ vs . vs _) across real-world MCP servers before committing to a grouping strategy.

Optional Field Picker

FR-1 prefills only the keys listed in required, which keeps the editor usable on large schemas but leaves optional properties undiscoverable from the editor itself -- a user has to read the schema panel above and type the key by hand.

Plan: an "Add optional field" control below the editor listing the properties absent from required, each inserting its key (with its declared default, or null) into the editor on click.

Deferred because: this is a new functional requirement with its own test criteria and another full explorer.html resync across every SDK. It was kept out of the 0.5.0 prefill fix so that a defect correction and a feature addition ship separately.

Request History

Save recent tool calls to localStorage and display them in the tool detail panel for quick replay.

Plan: - Store last N calls per tool as { args, timestamp } in localStorage - Show a "Recent calls" section below the input editor - Click to re-fill the input editor with previous arguments