half_press · So Dsc MCP: Risk & Policy

WHAT IT DOES

What half_press does on So Dsc

AI agents invoke half_press to trigger actions in So Dsc. 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 IT NEEDS A POLICY

Why half_press needs a policy

Given the server context of remotely controlling Sony DSC cameras via Camera Remote API, 'half_press' most likely refers to a half-press of the shutter button, which triggers autofocus and exposure metering — an external operation on a physical device. This is an Execute-category action. Confidence is lowered due to the empty description.

From the tool's definition Tool name 'half_press' on a camera remote control server; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

half_press Rate-limited

half_press 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "half_press": {
      "limits": [
        {
          "counter": "half_press_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches So Dsc, so you can run agents against it safely.

FAQ

Questions about half_press

What does the half_press tool do? +

half_press. It is categorised as a Execute tool in the So Dsc MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on half_press? +

Register the So Dsc MCP server in PolicyLayer and add a rule for half_press: 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 So Dsc. Nothing to install.

What risk level is half_press? +

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

Can I rate-limit half_press? +

Yes. Add a rate_limit block to the half_press 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.

How do I block half_press completely? +

Set action: deny in the PolicyLayer policy for half_press. 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 half_press? +

half_press is provided by the So Dsc MCP server (nananek/so-dsc). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.