# action

`station__vigilbrowser__action` · external (needs EXECUTION_BACKEND_URL configured) · domain `vigilbrowser` · pv-relevance `non-pv`

Dispatch one browser action on the session. Supported action kinds: click, fill, type, select, wait, press_key, evaluate. Example: action({"session_id": "...", "kind": "click", "selector": "#submit"}).

> **Note:** This tool routes through an external execution backend. If `EXECUTION_BACKEND_URL` is unset on the server, calls return JSON-RPC error `-32603 "Tool execution backend not configured"`. Tools with `backend: native` execute in-process and are always callable.

## Agent metadata

- `idempotent`: unknown
- `read_only`: unknown
- `expected_latency_ms`: unknown (not yet contract-tested)
- `cost_tokens_estimate`: unknown

## Input schema

- `session_id` *string* (required) — Session id
- `kind` *string* (required) — One of: click | fill | type | select | wait | press_key | evaluate
- `selector` *string* — CSS selector (for click/fill/type/select/wait)
- `value` *string* — Value to fill/type/select, or key to press, or JS expression to evaluate

## Example call

```json
POST /api/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__vigilbrowser__action",
    "arguments": {
      "session_id": "",
      "kind": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/vigilbrowser__action](/tools/vigilbrowser__action) — HTML page
- [/tools/vigilbrowser__action/json](/tools/vigilbrowser__action/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide