> For the complete documentation index, see [llms.txt](https://docs.dextoros.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dextoros.app/skills-and-training/capabilities.md).

# Capabilities

The physical parts a robot reports, and why skills depend on them.

Every robot in DextorOS reports its **capabilities**: the physical parts it has. Skills list the capabilities they need, and DextorOS uses the two lists to decide [which robots can run a skill](/skills-and-training/which-robots-can-run-a-skill.md).

## The capabilities

| Capability   | Short label | What it means                                       |
| ------------ | ----------- | --------------------------------------------------- |
| Arm          | `Arm`       | A manipulator arm that can reach and move objects.  |
| Gripper      | `Grip`      | An end effector that can hold objects.              |
| Depth camera | `Depth`     | A camera that sees distance as well as colour.      |
| LiDAR        | `Lidar`     | A laser scanner for mapping and obstacle detection. |
| Wheeled base | `Wheel`     | Drives on wheels.                                   |
| Legs         | `Legs`      | Walks on legs.                                      |

## Example fleet

The demo fleet shows how different bodies report different capabilities:

| Robot    | Platform           | Capabilities                                    |
| -------- | ------------------ | ----------------------------------------------- |
| `ARM-02` | 6-axis arm         | arm, gripper, depth camera                      |
| `AMR-11` | Warehouse AMR      | wheeled base, LiDAR, depth camera               |
| `QDR-04` | Quadruped          | legs, depth camera, LiDAR                       |
| `MM-01`  | Mobile manipulator | wheeled base, arm, gripper, depth camera, LiDAR |
| `HUM-03` | Humanoid           | legs, arm, gripper, depth camera                |
| `DLT-07` | Delta picker       | arm, gripper                                    |

{% hint style="info" %}
Capabilities describe what a robot **has**, not what brand it is. A skill that needs an arm, a gripper and a depth camera runs on any robot with all three, from any maker.
{% endhint %}


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