io.github.opengameapp/browser-game
NPM · OPENGAME-BROWSER-GAME-MCP · SCANNED SEP 21
Local tools for planning and validating focused browser-game prototypes.
Available components
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 Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 0 of 3 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to opengameapp/OpenGame-showcases). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 54 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability74
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 281 tokens (~70/item across 4 items; 4 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage81
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 42% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the io.github.opengameapp/browser-game MCP server?
io.github.opengameapp/browser-game runs locally as an npm package, launched with npx -y opengame-browser-game-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 · opengame-browser-game-mcp
claude mcp add opengameapp-browser-game -- npx -y opengame-browser-game-mcp
{
"mcpServers": {
"opengameapp-browser-game": {
"command": "npx",
"args": [
"-y",
"opengame-browser-game-mcp"
]
}
}
} {
"servers": {
"opengameapp-browser-game": {
"command": "npx",
"args": [
"-y",
"opengame-browser-game-mcp"
]
}
}
} codex mcp add opengameapp-browser-game -- npx -y opengame-browser-game-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"opengameapp-browser-game": {
"type": "local",
"command": [
"npx",
"-y",
"opengame-browser-game-mcp"
],
"enabled": true
}
}
} openclaw mcp add opengameapp-browser-game --command npx --arg -y --arg opengame-browser-game-mcp
mcp_servers:
opengameapp-browser-game:
command: "npx"
args: ["-y", "opengame-browser-game-mcp"] {
"McpServers": {
"opengameapp-browser-game": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"opengame-browser-game-mcp"
]
}
}
} assistant mcp add opengameapp-browser-game -t stdio -c npx -a -y opengame-browser-game-mcp
{
"mcpServers": {
"opengameapp-browser-game": {
"command": "npx",
"args": [
"-y",
"opengame-browser-game-mcp"
]
}
}
} 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.
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
- 16 Sept 26 +1
- Stability: 0.97 → pass security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −3
- Stability: pass → 0.80 functional
- 9 Sept 26 +1
- Stability: 0.97 → 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 21 Sept 2026 · Analysed npm/opengame-browser-game-mcp@0.1.3
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | opengameapp/OpenGame-showcases |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/opengameapp/OpenGame-showcases/.github/workflows/publish-npm.yml@refs/heads/main |
| Rekor log index | 2267415048 |
| Predicate type | https://slsa.dev/provenance/v1 |
| Subject digest | sha512:6c6a904746f2a6b54bf7f6f7bc106eb1c6b59a388aaacd54d711f5a3737c5932905b6ee830d707b41dad7a6c4f5fbc5a170b055f337ab9cef21f44870 |
Background: How many MCP packages publish verified provenance →
Dependencies 3 packages
| Packages resolved | 3 |
|---|---|
| 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 →
opengame_create_game_blueprint Create a compact browser-game blueprint ~108
Creates an implementation-ready vertical-slice brief with core loop, runtime recommendation, controls, build order, and scope guardrails. It does not generate code or call a hosted service.
| Name | Type | Req | Description |
|---|---|---|---|
| dimension | string | – | – |
| genre | string | – | – |
| idea | string | yes | The original game concept to scope. |
| platform | string | – | – |
| scope | string | – | – |
| visualStyle | string | – | Optional visual direction, not a request for copied art. |
No output schema declared.
No examples provided.
opengame_list_showcases List public OpenGame browser-game showcases ~44
Returns public OpenGame browser-game references, their play links, prompt sources, dimensions, and implementation themes.
| Name | Type | Req | Description |
|---|---|---|---|
| dimension | string | – | Optional showcase dimension filter. |
No output schema declared.
No examples provided.
opengame_recommend_browser_runtime Recommend a browser-game runtime ~78
Chooses a practical 2D Canvas/DOM or 3D Three.js/WebGL starting point for a focused browser-game vertical slice.
| Name | Type | Req | Description |
|---|---|---|---|
| dimension | string | – | – |
| genre | string | – | – |
| idea | string | – | A short description used only to assess spatial requirements. |
| platform | string | – | – |
No output schema declared.
No examples provided.
opengame_validate_game_brief Validate a browser-game brief ~51
Checks whether a game brief identifies a loop, controls, win condition, loss/restart path, and visible feedback before implementation begins.
| Name | Type | Req | Description |
|---|---|---|---|
| brief | string | yes | The game brief to evaluate. |
No output schema declared.
No examples provided.
What is the io.github.opengameapp/browser-game MCP server?
io.github.opengameapp/browser-game is an MCP server listed in the public MCP registry as io.github.opengameapp/browser-game. Local tools for planning and validating focused browser-game prototypes. This page covers its npm package (opengame-browser-game-mcp).
Is the io.github.opengameapp/browser-game MCP server safe to use?
io.github.opengameapp/browser-game scores 93 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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.opengameapp/browser-game MCP server expose?
io.github.opengameapp/browser-game exposes 4 tools: opengame_list_showcases, opengame_recommend_browser_runtime, opengame_create_game_blueprint, opengame_validate_game_brief. Their descriptions and schemas cost roughly 281 tokens of context every time the server is loaded.
Is the io.github.opengameapp/browser-game MCP server still maintained?
io.github.opengameapp/browser-game is still listed as active in the MCP registry. We last reached this channel on 21 September 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.opengameapp/browser-game MCP server under?
io.github.opengameapp/browser-game declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.