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okenjioxx

Roblox Executor MCP Server

by okenjioxx

Snapshot of the current place, server, and workspace (read-only)

get-place-details
Read-onlyIdempotent

Read the connected Roblox place and server's ID, job ID, player count, and StreamingEnabled status to reproduce findings or cross-reference test runs.

Instructions

Read identifying and runtime details about the place and server this client is connected to. Use this to capture the exact place/universe/server you are testing in (so a finding can be reproduced), to grab the PlaceId/GameId/JobId for cross-referencing, to check the player count against MaxPlayers, or to confirm whether StreamingEnabled is on (which affects whether parts may be unloaded). It is a pure read: it mutates nothing and fires no remotes. Every field is independently pcall-guarded and reported as nil when unavailable, so a single unreadable property never fails the whole call. Returns { ok, ... } with: PlaceId, GameId, JobId, PlaceVersion, CreatorId, CreatorType (tostring of game.CreatorType), MaxPlayers (Players.MaxPlayers), PlayerCount (#Players:GetPlayers()), DistributedGameTime (workspace.DistributedGameTime, the server clock in seconds), and StreamingEnabled (workspace.StreamingEnabled). Requires only the base Roblox API; no special executor capabilities. Returns { error } only if the game/DataModel itself cannot be accessed. Signature: { threadContext: number? }. Phase: observe; cost=medium; idempotency=read-only. Requires: active-client. Produces: structured-observation. Safety: read-only. On failure: inspect tool-schema for exact fields, defaults, constraints, and an invocation example.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
threadContextNoOptional Roblox thread identity for this call; omit it to use the server default.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv2.0.0-spies.2

TDQS

A4.2/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare read-only/idempotent/non-destructive, and the description adds real value on top: each field is independently pcall-guarded and reported as nil when unavailable, the call only errors if the DataModel itself is inaccessible, and it needs only the base Roblox API with no special executor capabilities. This is a solid behavioral disclosure; it loses a point only because read-only status is restated three times rather than expanding on other traits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads purpose, then usage, behavior, and return fields in a logical order, and the field list is genuinely informative. It is longer than necessary though, with read-only restated in three places and a boilerplate 'On failure: inspect tool-schema...' line that adds little.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description fully documents the return shape (ok plus every field with its source, e.g. workspace.StreamingEnabled), the error case, the capability requirements, and the intended use. Nothing an agent needs to invoke it correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% for the single threadContext parameter, so the schema already carries its meaning. The description merely repeats it as 'Signature: { threadContext: number? }' without adding semantics, which matches the baseline 3 for high-coverage schemas.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (read) and resource (identifying and runtime details of the connected place and server), then enumerates the exact fields returned (PlaceId, GameId, JobId, MaxPlayers, PlayerCount, StreamingEnabled). This field-level enumeration makes it clearly distinguishable from siblings like get-game-info or get-game-state without opening any schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives concrete use cases: capturing the place/universe/server for reproducibility, grabbing IDs for cross-referencing, checking player count against MaxPlayers, and confirming StreamingEnabled. However, it names no alternatives or when-not conditions, so the agent must infer the boundary against get-game-info on its own.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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