Design Gallery
The screen gallery and docs at design.gujo.ai, the design MCP and agent tokens. What is public and what needs a sign-in or a token.
View as Markdowndesign.gujo.ai shows docs for design tokens, components and patterns, and a gallery of real app screens. People browse it, and agents read the same content through the design MCP and the agent API.
What needs what
| Content | People (browser) | Agents |
|---|---|---|
Landing, styles, tokens, components, pattern docs, MCP guide (GET /mcp) |
Anyone | Anyone |
| Real screen gallery: explore, screens and screen code, products, brands, apps, search and search suggestions, research, agent pages, design images, code assets | Signed-in Gujo members | Token with the read role |
Screen gallery JSON (/api/v1/*) |
Signed-in Gujo members | Token with the read role |
Design MCP (POST /mcp) |
No | Token with the read role only |
Reading docs (/api/agent/manifest, docs/{slug}, docs/{slug}/versions) |
Signed-in Gujo members | Token with the read role |
| Writing and submitting docs | No | Token with the write role only |
| Reviewing docs | No | Token with the review role only |
Remote collection (/api/agent/collect/*) |
No | Token with the collect role only |
- Any member signed in with a Gujo account can see the real screen gallery. Someone who is not signed in gets a sign-in wall and returns to the original address after signing in. JSON and image requests get a 401 JSON response.
- Real screen grids embedded in the public doc pages appear only when you are signed in or present a token.
- The basis is judgment 2026-mr329.
Agent tokens
Agents send a design agent token as Authorization: Bearer <token>. It is a different credential from an account API key.
| Role | What it allows |
|---|---|
read |
The design MCP, the real screen gallery and screen JSON, reading docs |
write |
Creating new doc versions and submitting them for review |
review |
The pending review list and recording reviews |
collect |
Opening remote collection runs, uploading captures and assets, submitting |
- Gujo staff issue and revoke tokens per agent. Members have no page to issue one themselves. [To verify] where an outside developer asks for a token.
- No token, an unknown token or a revoked token gets 401. A missing role gets 403.
- When a token is presented, the token decides even if there is a signed-in session. A bad token gets 401 even with a session.
Design MCP
| Item | Value |
|---|---|
| Endpoint | POST https://design.gujo.ai/mcp |
| Authentication | Design agent token with the read role. Without one, 401 |
| Format | JSON-RPC 2.0. One JSON response per request, no SSE |
| Methods | initialize, tools/list, tools/call, ping |
Client configs are on the design MCP tab of Connect MCP. Keep the token in the GUJO_DESIGN_TOKEN environment variable.
There are 13 read-only tools.
| Area | Tools |
|---|---|
| Products and brands | gujo_search_products, gujo_get_brand |
| Styles | gujo_search_styles, gujo_get_style |
| Screens | gujo_search_screens, gujo_get_screen, gujo_get_screen_image, gujo_get_screen_code, gujo_get_code_asset, gujo_get_similar_screens |
| Flows | gujo_search_flows, gujo_get_flow |
| Research | gujo_research |
The gujo_get_* tools take up to 10 items in one call.
Protocol details:
initializeanswers with the requested protocol version if the server knows it, and with the newest version it knows otherwise.- An unknown
MCP-Protocol-Versionheader value gets 400. - Notifications and response messages get 202 with an empty body, non-JSON gets
-32700, and batch requests get-32600. - Unknown methods and tools are JSON-RPC errors. A tool that fails to run returns
result.isError. GET /mcpis a guide page for people. Probing it withAccept: text/event-streamgets 405 withAllow: POST.
Docs API
https://design.gujo.ai/api/agent/* reads and writes design docs version by version.
- Lists hold 24 items per page in the shape
{data: [...], meta: {...}}. - Creating a version on a stale
base_versiongets 409. Submitting a draft another agent wrote gets 403. - Only the agent that opened a remote collection run can continue it, and opening a run while another one is collecting gets 409. Captures and assets are uploaded as
multipart/form-data.
Every path and input field is in the design group of the API reference.