MCP server exposing grounded, read-only guidance about the Multiplayer Agent SDK's adapter interface to coding agents (Claude Code, Cursor, etc).
This MCP server exposes only 2 tools with minimal parameter complexity. Both tools have descriptions (good), but lack input schemas entirely, a critical failure. Tool names follow verb_noun convention (list_, get_), which is correct. However, the descriptions are terse (under 100 chars each) and lack actionable context for LLM selection. No output schemas are documented. The server is read-only (low risk), but the absence of formal schemas and sparse descriptions make it unsuitable for production agent integration. The tools appear to be discovery/guidance tools for the SDK itself, not operational tools, which limits their utility.
Get the authoritative RoomDefinition/PlayerInfo/RoomOptions contract and a minimal worked example, so an agent can write a game's RoomDefinition without guessing the SDK's API.
List the Multiplayer Agent SDK backend adapters and whether each is available now or planned post-MVP.
No input schemas defined for any tool. Both tools declare empty input objects {} with no JSON Schema structure, type definitions, or property descriptions.
No output schemas documented. LLMs cannot infer what fields to expect from tool responses, preventing downstream tool chaining and forcing unstructured parsing.
Tool descriptions are under 100 characters and lack context for LLM selection. 'List the Multiplayer Agent SDK backend adapters...' does not explain WHEN to call this vs other discovery tools or what the response structure is.
Tools are discovery/reference tools with no operational capability. They do not modify state, create resources, or enable agent workflows, they only return static guidance. Limited utility for agentic workflows.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 42 | 2026-07-28+ | v2 |