mobilebuildmcp-rendering-streaming-review

# MobileBuildMCP Rendering and Streaming Review Review guardrails for rendering boundaries, streaming fragments, and output modes. ## Review scope - Review-only by default. - Do not edit product code unless the user explicitly requests implementation changes. ## Files to inspect - `src/rendering/**` - `src/types/domain-fragments.ts` - `src/types/runtime-status.ts` - `src/runtime/tool-invoker.ts` - `src/runtime/__tests__/tool-invoker.test.ts` - `xcodebuildmcp.com/app/docs/_content/architecture-rendering-output.mdx` - `xcodebuildmcp.com/app/docs/_content/architecture-tool-lifecycle.mdx` - `xcodebuildmcp.com/app/docs/_content/output-formats.mdx` ## Guardrails - Tool handlers do not branch on CLI vs MCP output mode. - Fragments represent progress, not final contract data. - Final structured output remains canonical. - Do not invent `json`/`jsonl` render strategies. - Streaming tools emit typed fragments and one final structured result. - Non-streaming tools do not emit unnecessary fragments. - Keep `ctx.emit` and xcodebuild pipeline `emitFragment` contexts separate. - Keep next-step rendering in runtime/rendering boundary. ## Validation - `npm test -- src/runtime/__tests__/tool-invoker.test.ts` - `npm run test:snapshots` - `npm run typecheck` - `npx skill-check .agents/skills/mobilebuildmcp-rendering-streaming-review`