io.github.Justice219/roblox-studio-mcp
NPM · @JAMESWORKBENCHCRM/ROBLOX-STUDIO-MCP
Connect AI assistants to Roblox Studio — manipulate the DataModel with 14 tools
Available components
Last scanned (3 hours ago)
Scores higher than 58% of npm servers
Category IoT and Hardware
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
- 39 of 122 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency44
- 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 266 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability80
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 747 tokens (~53/item across 14 items; 14 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 Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "delete_instance" implies "delete" 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 14 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.
- 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 +2
- Stability: 0.87 → pass security
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Oct 26 −3
- Stability: pass → 0.80 functional
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 5 Nov 2026 · Analysed npm/@jamesworkbenchcrm/roblox-studio-mcp@1.0.1
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 122 packages
| Packages resolved | 122 |
|---|---|
| Stale | 39 |
| 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 →
clone_instance ~52
Clone an instance to a new parent location
| Name | Type | Req | Description |
|---|---|---|---|
| destinationParent | string | yes | Dot-notation path to the clone's new parent |
| sourcePath | string | yes | Dot-notation path to the instance to clone |
No output schema declared.
No examples provided.
create_instance ~121
Create a new Instance with the given className under the specified parent
| Name | Type | Req | Description |
|---|---|---|---|
| className | string | yes | Roblox class name (e.g. "Part", "RemoteEvent", "Folder") |
| parent | string | yes | Dot-notation path to parent (e.g. "game.Workspace", "game.ReplicatedStorage") |
| properties | object | – | Map of property names to values. Complex types use _type tags: { Position: { _type: "Vector3", x: 0, y: 5, z: 0 } } |
No output schema declared.
No examples provided.
delete_instance ~33
Destroy an instance (and all its descendants)
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Dot-notation path to the instance to destroy |
No output schema declared.
No examples provided.
execute_luau ~46
Execute arbitrary Luau code in the Studio plugin context. Returns the result of the last expression.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | Luau source code to execute in the plugin context |
No output schema declared.
No examples provided.
find_instances ~101
Search for instances by className and/or name pattern
| Name | Type | Req | Description |
|---|---|---|---|
| className | string | – | Class name to filter by (e.g. "Part", "RemoteEvent") |
| maxResults | number | – | Maximum number of results to return (default: 100) |
| namePattern | string | – | Lua pattern to match instance names (e.g. "^Button") |
| searchRoot | string | – | Dot-notation path to search from (default: "game") |
No output schema declared.
No examples provided.
get_children ~41
Get immediate children of an instance at the given path
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Dot-notation path to the parent (e.g. "game.Workspace") |
No output schema declared.
No examples provided.
get_descendants ~72
Get all descendants of an instance at the given path, with their classNames and full paths
| Name | Type | Req | Description |
|---|---|---|---|
| maxDepth | number | – | Maximum depth to traverse (default: unlimited) |
| path | string | yes | Dot-notation path to the instance (e.g. "game.Workspace", "game.ServerStorage.Items") |
No output schema declared.
No examples provided.
get_properties ~60
Get serialized properties of an instance (with _type tags for Vector3, CFrame, etc.)
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Dot-notation path to the instance |
| properties | array | – | Specific property names to read (default: all readable properties) |
No output schema declared.
No examples provided.
get_selection ~17
Get the currently selected objects in Roblox Studio
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_services ~25
List all services currently in the DataModel (Workspace, ReplicatedStorage, etc.)
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
insert_service ~51
Insert/get a service via game:GetService() (e.g. TeleportService, Teams)
| Name | Type | Req | Description |
|---|---|---|---|
| serviceName | string | yes | Service class name (e.g. "TeleportService", "Teams", "Chat") |
No output schema declared.
No examples provided.
move_instance ~52
Move (reparent) an instance to a new parent
| Name | Type | Req | Description |
|---|---|---|---|
| newParent | string | yes | Dot-notation path to the new parent |
| path | string | yes | Dot-notation path to the instance to move |
No output schema declared.
No examples provided.
set_properties ~43
Set properties on an existing instance
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Dot-notation path to the instance |
| properties | object | yes | Map of property names to new values |
No output schema declared.
No examples provided.
set_selection ~33
Set the Roblox Studio selection to the given instances
| Name | Type | Req | Description |
|---|---|---|---|
| paths | array | yes | Array of dot-notation paths to select |
No output schema declared.
No examples provided.
How do I install the io.github.Justice219/roblox-studio-mcp server?
io.github.Justice219/roblox-studio-mcp runs locally as an npm package, launched with npx -y @jamesworkbenchcrm/roblox-studio-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 · @jamesworkbenchcrm/roblox-studio-mcp
claude mcp add justice219-roblox-studio-mcp -- npx -y @jamesworkbenchcrm/roblox-studio-mcp
What is the io.github.Justice219/roblox-studio-mcp server?
io.github.Justice219/roblox-studio-mcp is listed in the public MCP registry as io.github.Justice219/roblox-studio-mcp. Connect AI assistants to Roblox Studio, manipulate the DataModel with 14 tools. This page covers its npm package (@jamesworkbenchcrm/roblox-studio-mcp).
Is the io.github.Justice219/roblox-studio-mcp server safe to use?
io.github.Justice219/roblox-studio-mcp scores 78 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 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.Justice219/roblox-studio-mcp server expose?
io.github.Justice219/roblox-studio-mcp exposes 14 tools: get_descendants, get_children, get_properties, find_instances, get_services, and 9 more. Their descriptions and schemas cost roughly 747 tokens of context every time the server is loaded.
Is the io.github.Justice219/roblox-studio-mcp server still maintained?
io.github.Justice219/roblox-studio-mcp is still listed as active in the MCP registry. We last reached this channel on 5 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.Justice219/roblox-studio-mcp server under?
io.github.Justice219/roblox-studio-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.