High Risk →

type

Type text into an input field specified by its numbered label from the annotated screenshot. Optionally replace existing text first.

How to control type ↓

AI agents invoke type to trigger actions in Steel MCP Server. 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.

High Risk

This tool triggers a browser action (typing into a web input field), which is an external operation with effects depending on arguments. It can submit forms, enter credentials, or trigger dynamic web content. The 'replace existing text' option adds a write-like modification aspect, but since it operates within a live browser session with real-world consequences, Execute is the appropriate category.

From the tool's definition Type text into an input field specified by its numbered label from the annotated screenshot. Optionally replace existing text first.

Documented attack patterns abuse exactly the kind of access type gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and Steel MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for type:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "type": {
      "limits": [
        {
          "counter": "type_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

type 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.

  1. Create a free account and register Steel MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the type tool do? +

Type text into an input field specified by its numbered label from the annotated screenshot. Optionally replace existing text first. It is categorised as a Execute tool in the Steel MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on type? +

Register the Steel MCP Server MCP server in PolicyLayer and add a rule for type: 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 Steel MCP Server. Nothing to install.

What risk level is type? +

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

Can I rate-limit type? +

Yes. Add a rate_limit block to the type 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 type completely? +

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

type is provided by the Steel MCP Server MCP server (steel-dev/steel-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Steel MCP Server tool call.

Deterministic rules across all 9 Steel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

9 Steel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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