# Head optimization

## Can optimize head if the adapter supports it

### Juttle

    read test -debug 'optimization' | head 10 | view result

### Output

    { type: "head", limit: 10 }

## Can optimize head with an implicit limit

### Juttle

    read test -debug 'optimization' | head | view result

### Output

    { type: "head", limit: 1 }

## Does not optimize head if the adapter doesn't support it

### Juttle

    read test -debug 'optimization' -optimize false | head 10 | view result

### Output

    { type: "disabled", reason: "unsupported_optimization" }

## Does not optimize head if unsupported options are passed

### Juttle

    read test -debug 'optimization' | head -xyz 123 10 | view result

### Output

    { type: "disabled", reason: "unsupported_head_option" }