# vfx.patch

> Talos next · Since next

RFC 6902 ops on a project *.vfx.json, all or nothing; emitters by name (/emitters/@smoke/init/life).

A result that does not compile is refused and nothing is written. Answers with what moved in the report. dryRun writes nothing.

| | |
|---|---|
| Title | Change an effect |
| Mode | `disk` |
| Token cost | about 197 tokens (listed only when its toolset is enabled) |
| Toolset | `vfx` |

## Arguments

| Argument | Type | Required | Default | Allowed values | Description |
|---|---|---|---|---|---|
| `distances` | `number[]` | no |  |  | Metres, for on-screen sizes |
| `dryRun` | `boolean` | no |  |  |  |
| `ops` | `object[]` | yes |  |  |  |
| `params` | `object` | no |  |  | Values over the defaults |
| `path` | `string` | yes |  |  |  |
| `seconds` | `number` | no |  |  |  |
| `speed` | `number` | no |  |  | How fast the instance moves, m/s |

## Example

An MCP `tools/call` with the required arguments (placeholders in angle brackets).

```json
{
  "name": "vfx.patch",
  "arguments": {
    "ops": [],
    "path": "<path>"
  }
}
```