Plan and test game mechanics

A mechanic needs an observable rule: an action, a change in state and feedback to the player. Before adding more systems, test whether the first action, win condition and restart work together. The existing guides below provide the starting workflow and debugging checks.

Open Mechanics collection ↗

Prepare a game for publishing

Publishing starts with a game that can be tested, understood and maintained. Check the available creator controls, audience settings and safety requirements before a release. Use the publishing guide for the sequence, and the troubleshooting guide for an actual blocked step.

Open Publish collection ↗

BC-0107 · CORE GUIDE

Editorial review 2026-09-26

Roblox Build vs Studio MCP

Use Build chat when the task belongs in the existing prompt-led creation flow. Consider a Studio MCP connection only when you deliberately need an external client's Studio workflow and can manage its target, permissions and review process; it is not a shortcut around Build access or policy requirements.

Objective

Decide whether an external Studio connection is necessary and define its trust and target boundaries.

Before you start

Identify a specific task that needs the external Studio workflow.
Know the intended place and permitted edit scope.
Review both the Build-origin handoff and the chosen client's actual policies.

Steps

Explain what the connection adds to the task.
Confirm the intended project before any operation.
Read relevant state without broad unrelated collection.
Approve a bounded change through the client's real controls and preserve a recovery point.
Inspect the changed project and verify gameplay separately from tool-call success.

Verification

The target record distinguishes similarly named or simultaneously open places.
The allowed scope is narrower than unrestricted project improvement.
Provider handling and recovery are checked rather than inferred from local transport.
The final report distinguishes a completed operation from a passed behavior check.

Limitations

No external client connection or Roblox account inspection was performed for this comparison.
Client permission prompts and provider policies are not universal MCP guarantees.
This workflow does not bypass Build rollout, moderation or publishing requirements.

Working notes

The useful comparison is between a creation surface and a connection boundary, not competing game genres. Before connecting anything, write what the external workflow must inspect or change in the Studio project. If there is no concrete need beyond describing a small game, an additional client connection may add setup and trust decisions without solving the original problem.

Name the target place before an operation. Similar project names make an incorrect selection harder to notice when several projects are open. Prepare a human-readable target check and a narrow allowed scope, then compare the client's reported target with the project you intended. Do not rely only on the fact that a connection indicator is green.

Treat transport and trust as different questions. A local connection mechanism does not establish the connected provider's data handling, an automatic backup or a confirmation prompt before every action. Read the actual client's permissions and privacy terms, and keep secret values and unrelated projects outside the working context.

Use an inspect-then-change sequence. Start with a relevant read of the intended project, review the proposed change, preserve a recovery point and limit the edit to the named task. Review the changed place, then inspect the affected interaction and its nearby regression cases. A tool call returning success is evidence of that call, not proof that the gameplay objective is satisfied.

Examples

Connection decision: the task is reviewing the reset script in a known Studio place. The planned read identifies that script and its references; the later edit is limited to the reproduced reset defect. A general request to improve every system has a much larger and less reviewable scope.
Target record: intended place identity / open Studio instance selected / allowed objects or scripts / proposed operation / observed result. Resolve an identity mismatch before an edit, not after discovering that another project changed.
Trust checklist: what can this client read, what can it change, where does its provider process the supplied data, and how will this project be restored? An unanswered item remains a decision gap rather than an assumed protection.