> For the complete documentation index, see [llms.txt](https://star-generator.gitbook.io/star-generator-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://star-generator.gitbook.io/star-generator-docs/features/craft-cost-modifiers.md).

# craft cost modifiers

Craft cost modifiers are configured per table under `craft-cost`.

They reduce recipe craft time and recipe energy cost without editing every recipe file.

## Example

```yaml
craft-cost:
  time:
    unit: "PERCENT"
    value: 30
  energy:
    unit: "PERCENT"
    value: 20
```

This example makes the table:

* Craft 30 percent faster.
* Use 20 percent less recipe energy.

## Units

| Unit      | Description                               |
| --------- | ----------------------------------------- |
| `PERCENT` | Reduces the base value by a percentage.   |
| `FLAT`    | Reduces the base value by a fixed amount. |

Aliases accepted by the plugin for `FLAT` include `AMOUNT`, `VALUE`, `UNIT`, and `FIXED`.

## Time Reduction

```yaml
craft-cost:
  time:
    unit: "PERCENT"
    value: 25
```

If a recipe has `time: 8`, the adjusted duration is:

```
8 * (100 - 25) / 100 = 6 seconds
```

The final craft time is rounded up to whole seconds. If a positive base time is reduced below 1 second, the runtime keeps it at 1 second.

## Energy Reduction

```yaml
craft-cost:
  energy:
    unit: "FLAT"
    value: 2
```

If a recipe has `energy: 5`, the adjusted energy cost is:

```
5 - 2 = 3
```

Energy cannot go below `0`.

The energy modifier also applies to the table's `energySetting.energyBase` drain where the table uses that base cost.

## Placeholders Use Adjusted Values

Recipe icon and progress tooltip placeholders use the table-adjusted values:

| Placeholder               | Value                                                               |
| ------------------------- | ------------------------------------------------------------------- |
| `%crafting_time%`         | Craft time after `craft-cost.time`.                                 |
| `%crafting_time_seconds%` | Adjusted craft time as seconds.                                     |
| `%energy_cost%`           | Recipe energy after `craft-cost.energy`.                            |
| `%energy_base%`           | Adjusted base drain when the consume mode uses base drain.          |
| `%total_energy%`          | Adjusted recipe energy plus adjusted base drain over adjusted time. |

Raw value placeholders are available when you need the recipe's original value:

```
%raw_crafting_time%
%raw_crafting_time_seconds%
%raw_energy_cost%
```

## Legacy Key Support

The plugin also reads these legacy paths:

```yaml
craftCost:
  time: {}
  energy: {}

cost-reduction:
  time: {}
  energy: {}

costReduction:
  time: {}
  energy: {}
```

Use `craft-cost` for new files.


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