# Online position jerk-limited trajectory: robotics skill example

Online position jerk-limited trajectory. Parameterized bounded JSON adapter; numerical operation, no hardware execution.

## Task and environment

ruckig | 0.19.4 | independent-axes | json-contract-v1 | windows | 3.10
ruckig | 0.19.4 | independent-axes | json-contract-v1 | linux | 3.10

## Example input

```json
{
  "current_position": [
    0,
    0,
    0.5
  ],
  "current_velocity": [
    0,
    0,
    0
  ],
  "current_acceleration": [
    0,
    0,
    0
  ],
  "target_position": [
    1,
    -0.5,
    0.25
  ],
  "target_velocity": [
    0,
    0,
    0
  ],
  "target_acceleration": [
    0,
    0,
    0
  ],
  "max_velocity": [
    1,
    1,
    1
  ],
  "max_acceleration": [
    2,
    2,
    2
  ],
  "max_jerk": [
    4,
    4,
    4
  ],
  "dt": 0.01,
  "coordinate_type": "revolute_rad"
}
```

## Retrieve and prepare

Read https://hub.superfastrobotics.com/skills/ruckig-online-trajectory/skill.json or https://api.superfastrobotics.com/v1/skills/ruckig-online-trajectory?hub_commit=ede75c00118e9808e5099da43c26f4619cc3bc37&record_version=1.0.0&include=experience without installing a client. Inspect the license, exact environment and evidence before preparation. Preparation and execution remain separate.

Source: https://github.com/pantor/ruckig at a8db97a4e9c55e5160a3855f739fa3b270df8e4c. Record version: 1.0.0.

## Success condition

Exit 0, status=task_complete, success=true, finite outputs satisfying interface.output_schema and all declared numerical/model checks. This is not a physical robot or general task-success claim.

## Recorded evidence

task_complete: Three frozen positive cases passed against this exact adapter; see per-case receipts. This does not estimate general accuracy.

This page is a data-only example and performs no execution.