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RBX Invest Roblox Limiteds market data

by com.rbxinvest
OverviewDiscussionsAdmin

Get Started guide to Roblox Limiteds, by experience level

get_started_guide

RBX Invest's guide to making Robux with Roblox Limiteds, with one guide per experience level. Level 1 is for someone who knows nothing about Roblox: what Robux and Limiteds are. Level 2 is how a flip makes Robux and what it costs. Level 3 is a first flip: screening a release, break-even, the holding period, pricing an exit. Level 4 is for people who already resell: a Reseller Terminal routine, undercut alerts, lowering entry cost with the Roblox Plus discount and the 40% affiliate share, buying below RAP, Classic Limiteds. Level 5 is for daily traders: custom screens, saved views, market-wide data and this MCP server. Levels 1 and 2 lead into three beginner steps. Step 1 is getting Limiteds: buying them from creators with Robux, what makes one worth buying and what to avoid, or collecting free ones. Step 2 is selling: the Roblox Plus subscription it needs, the holding period of up to 30 days, how much of a sale the seller keeps, and pricing. Step 3 is reinvesting: keep flipping UGC Limiteds and save toward Classic Limiteds, which can be traded. Pass level or step; omit both for the overview: the five levels, the three steps and a glossary (Robux, Limited, UGC, Classic, RAP, Roblox Plus). Returns the text with section links; paths are relative to https://rbxinvest.com.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
stepNoA beginner step: 1 get Limiteds, 2 sell them, 3 reinvest the profit. Ignored when level is passed.
levelNoThe reader's experience: 1 new to Limiteds, 2 knows they exist, 3 understands the market, 4 has resold for profit, 5 trades every day. Returns that level's guide.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • addedInput schema / properties / level
      Added value: +{
+  "description": "The reader's experience: 1 new to Limiteds, 2 knows they exist, 3 understands the market, 4 has resold for profit, 5 trades every day. Returns that level's guide.",
+  "enum": [
+    1,
+    2,
+    3,
+    4,
+    5
+  ],
+  "type": "integer"
+}
    • changedInput schema / properties / step / description
      Previous value: -"1 get Limiteds, 2 sell them, 3 reinvest the profit. Omit for the overview."New value: +"A beginner step: 1 get Limiteds, 2 sell them, 3 reinvest the profit. Ignored when level is passed."
  2. Added

TDQS

A3.9/5.0
Behavior4/5

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

With no annotations, the description carries the behavioral burden and does reasonably well: it discloses the return format (text with section links), notes paths are relative to https://rbxinvest.com, and defines the default (overview with five levels, three steps, glossary) when no parameter is passed. It doesn't state read-only/auth-free status, but for a content-retrieval tool the disclosure is solid.

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

Conciseness3/5

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

The content is dense but the most operationally important sentence — how to invoke it and what it returns — sits at the very end, after a long curriculum narrative. Several sentences read as promotional copy about Roblox Plus and affiliate shares rather than invocation guidance, so size is not fully justified.

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

Completeness4/5

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

With no output schema and no annotations, the description compensates well: it explains parameter behavior, the omission default, and the return shape (text plus section links with a known base URL). Nothing essential to calling it correctly is missing, though it could note that content is purely informational/read-only.

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

Parameters4/5

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

Schema coverage is 100% and both enums are self-described, so the baseline is 3. The description goes further by spelling out what each level and step actually contains (e.g. Level 3 covers screening a release, break-even, holding period, exit pricing), giving the agent real disambiguation value beyond the terse schema descriptions.

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

Purpose4/5

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

The description makes clear this returns RBX Invest's tutorial content on earning Robux with Roblox Limiteds, organized one guide per experience level, and the closing sentence states the operation ('Returns the text with section links'). The verb is somewhat implicit and buried under curriculum detail, and it never contrasts itself with the sibling find_articles, so it stops short of a 5.

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?

It explicitly tells the agent how to select content: 'Pass level or step; omit both for the overview,' and maps each enum value to a reader profile. What's missing is any guidance on when to reach for this tool versus find_articles or the market-data siblings, so it's context without exclusions.

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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