io.github.GalenGoodwick/cartridge-cafe
NPM · CARTRIDGE-CAFE-MCP
Your AI builds live WebGPU game worlds on cartridge.cafe — guest door, no account needed.
Available components
Last scanned (20 hours ago)
Scores higher than 55% of npm servers
Category Entertainment and Games
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 53 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 408 tokens (~58/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage93
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 80% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "bridge" implies "send" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Nov 26 0
- Stability: 0.97 → pass security
- 2 Nov 26 0
- Stability: pass → 0.97 functional
- 27 Oct 26 0
- Stability: 0.97 → pass security
- 26 Oct 26 0
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 20 Oct 26 0
- Stability: 0.97 → pass security
- 19 Oct 26 0
- Stability: pass → 0.97 functional
- 17 Oct 26 +1
- Stability: 0.87 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Analysed npm/cartridge-cafe-mcp@0.1.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
brew_world ~65
Create YOUR OWN world through the guest door — no account needed. Returns a build token (uc_st_) for the bridge. Guests get three creations; editing is unlimited. Sign in on the site later and everything transfers to your account.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | The world's name |
No output schema declared.
No examples provided.
bridge ~104
Send a command (or {"commands":[...]} batch) to a world over the bridge — create_field, define_visual, add_step_hook, set_world_data, and the rest per the guide. Uses your most recently brewed world unless a token is given (also accepts uc_sc_ branch tokens from connect prompts).
| Name | Type | Req | Description |
|---|---|---|---|
| command | object | yes | The bridge command object |
| token | string | – | World token (uc_st_/uc_sc_). Defaults to your latest brewed world. |
No output schema declared.
No examples provided.
browse_shelf ~33
Every world on the cafe's shelf, with play URLs. Public worlds' full source is readable via read_world_source.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
my_worlds ~25
The worlds you have brewed in this session, with their tokens and view URLs.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
read_guide ~39
The engine guide — MANDATORY reading before building. Contracts for visuals (WGSL), step hooks (JS), fields, and every bridge command.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
read_world_source ~59
A public world's complete source — WGSL visuals, step-hook code, fields, params. The shelf is a library, not a vault: learn techniques from working worlds.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | World name exactly as it appears on the shelf |
No output schema declared.
No examples provided.
world_state ~83
Read a world's FULL current source over the bridge — every field, every visual's complete WGSL, every step-hook's complete JS code, plus worldData, params, modules, and interaction rules. This is how you read back exactly what you (or a previous session) built and iterate on it. Defaults to your latest brewed world.
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | – | – |
No output schema declared.
No examples provided.
How do I install the io.github.GalenGoodwick/cartridge-cafe MCP server?
io.github.GalenGoodwick/cartridge-cafe runs locally as an npm package, launched with npx -y cartridge-cafe-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · cartridge-cafe-mcp
claude mcp add galengoodwick-cartridge-cafe -- npx -y cartridge-cafe-mcp
What is the io.github.GalenGoodwick/cartridge-cafe MCP server?
io.github.GalenGoodwick/cartridge-cafe is an MCP server listed in the public MCP registry as io.github.GalenGoodwick/cartridge-cafe. Your AI builds live WebGPU game worlds on cartridge.cafe, guest door, no account needed. This page covers its npm package (cartridge-cafe-mcp).
Is the io.github.GalenGoodwick/cartridge-cafe MCP server safe to use?
io.github.GalenGoodwick/cartridge-cafe scores 77 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 4 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.GalenGoodwick/cartridge-cafe MCP server expose?
io.github.GalenGoodwick/cartridge-cafe exposes 7 tools: read_guide, browse_shelf, read_world_source, brew_world, bridge, and 2 more. Their descriptions and schemas cost roughly 408 tokens of context every time the server is loaded.
Is the io.github.GalenGoodwick/cartridge-cafe MCP server still maintained?
io.github.GalenGoodwick/cartridge-cafe is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.GalenGoodwick/cartridge-cafe MCP server under?
io.github.GalenGoodwick/cartridge-cafe declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.