playback_stop

// WHEN AI AGENTS USE THIS TOOL

AI agents invoke playback_stop to trigger processes or run actions in Opencut Controller. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

// WHY ENFORCE A POLICY ON PLAYBACK_STOP

playback_stop can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

// RECOMMENDED POLICY

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

io-github-jxue0-opencut-controller.yaml

tools:
  playback_stop:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Opencut Controller policy for all 161 tools.

// DETAILS

Tool Name playback_stop

Category Execute

MCP Server Opencut Controller MCP Server

Risk Level High

// MORE OPENCUT CONTROLLER TOOLS

Destructive audio_sound_clear_saved Destructive audio_sound_remove_saved Destructive bookmark_remove Destructive canvas_clear_layout_guide Destructive keybinding_remove Destructive keybinding_reset_defaults Destructive keyframe_effect_param_remove Destructive keyframe_remove

View all 161 tools →

// WHAT CAN GO WRONG

Agents calling execute-class tools like playback_stop have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER EXECUTE TOOLS ACROSS MCP SERVERS

Other tools in the Execute risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

Agent Passport System — Cryptographic Identity for AI Agents aps_aggregate_settlement Agent Passport System — Cryptographic Identity for AI Agents aps_build_contributor_query Agent Passport System — Cryptographic Identity for AI Agents aps_compute_compute_axis_weights Agent Passport System — Cryptographic Identity for AI Agents aps_construct_attribution_primitive Agent Passport System — Cryptographic Identity for AI Agents commerce_preflight Agent Passport System — Cryptographic Identity for AI Agents execute_with_context

// IN CONTEXT OF HIGH RISK

playback_stop is one of the high-risk operations in Opencut Controller. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

// RELATED READING

// FAQ

What does the playback_stop tool do? +

Pause playback and seek to time 0. It is categorised as a Execute tool in the Opencut Controller MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on playback_stop? +

Add a rule in your Intercept YAML policy under the tools section for playback_stop. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Opencut Controller MCP server.

What risk level is playback_stop? +

playback_stop is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit playback_stop? +

Yes. Add a rate_limit block to the playback_stop rule in your Intercept 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.

How do I block playback_stop completely? +

Set action: deny in the Intercept policy for playback_stop. 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.

What MCP server provides playback_stop? +

playback_stop is provided by the Opencut Controller MCP server (opencut-controller). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.