### Function: AddSkillBonus(spawn, skill_id, value)

**Description:**
Placeholder description.

**Parameters:**
- `luaspell` (int32) - Integer value `luaspell`.
- `skill_id` (uint32) - Integer value `skill_id`.
- `value` (int32) - Integer value `value`.

**Returns:** None.

**Example:**

```lua
-- From Spells/AA/BattlemagesFervor.lua
function cast(Caster, Target, SkillAmt)
    AddSkillBonus(Target, GetSkillIDByName("Focus"), SkillAmt)
    AddSkillBonus(Target, GetSkillIDByName("Disruption"), SkillAmt)
    AddSkillBonus(Target, GetSkillIDByName("Subjugation"), SkillAmt)
    AddSkillBonus(Target, GetSkillIDByName("Ordination"), SkillAmt)
    Say(Caster, "need formula")
end
```