stop_movie
Stop MoviePlayer playback (the counterpart to play_movie). Targets the MoviePlayer on the given GameObject, or the first MoviePlayer in the scene when id is omitted. Pass rewind to also reset the playhead to 0 so the next play_movie starts from the top. Works during play mode.
This record as markdown: /tools/sbox/stop-movie.md
What stop_movie does on Sbox
AI agents invoke stop_movie to trigger actions in Sbox. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why stop_movie is rated High
Triggers external operation affecting game state; reversible and localized with no data destruction or financial impact.
From the tool's definition Stop MoviePlayer playback, reset playhead, works during play mode
Attacks that exploit this kind of access
The rule that runs stop_movie safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Sbox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stop_movie, this is the rule to start with:
stop_movie stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Sbox, apply this rule, and every stop_movie call is checked against it from then on.
Questions about stop_movie
Stop MoviePlayer playback (the counterpart to play_movie). Targets the MoviePlayer on the given GameObject, or the first MoviePlayer in the scene when id is omitted. Pass rewind to also reset the playhead to 0 so the next play_movie starts from the top. Works during play mode. It is categorised as a Execute tool in the Sbox MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Sbox MCP server in PolicyLayer and add a rule for stop_movie: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Sbox. Nothing to install.
stop_movie is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the stop_movie rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for stop_movie. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
stop_movie is provided by the Sbox MCP server (sbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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