> ## Documentation Index
> Fetch the complete documentation index at: https://doc.blankstate.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Build: IBE

> Where Protocols are designed and Blueprints compiled.

IBE (Interaction Behaviour Engine) is the Protocol workshop inside Atlas. It is the "IDE" for measurement: define what to detect, configure the sensor, compile the deployable package.

<Frame caption="IBE. Protocol space. Nuances resolving on the manifold.">
  <img src="https://mintcdn.com/blankstate/_qJUwEIy0R37Mjeb/images/site/ibe-meeting.png?fit=max&auto=format&n=_qJUwEIy0R37Mjeb&q=85&s=9691e1f7e2c4cef6fe33c1dfebcd0d57" alt="Protocol activations on the measurement space" width="1376" height="768" data-path="images/site/ibe-meeting.png" />
</Frame>

## Flow

<Steps>
  <Step title="Design a Protocol">
    Describe what you want to measure. Eva translates intent into a candidate nuance set with C×B×I tags, weights, and fidelity estimates.
  </Step>

  <Step title="Compose">
    Adjust labels, weights, extracted features, and composition knobs (fidelity threshold, sensitivity, novelty detection).
  </Step>

  <Step title="Compile into a Blueprint">
    A Blueprint bundles Protocols, nuances, and metrics into a versioned, immutable package.
  </Step>

  <Step title="Publish">
    Published Blueprints are callable from the API and available in Stage for Simulation authoring.
  </Step>
</Steps>

## Editing depth

IBE supports editing at two levels of control on the same view:

* **Basic**: labels, descriptions, importance weights. Guided by Eva.
* **Composition**: fidelity thresholds, sensitivity, C×B×I balance.

## Blueprint lifecycle

| State         | Description                                                      |
| ------------- | ---------------------------------------------------------------- |
| **Draft**     | Mutable. Lives in IBE. Not callable from the API.                |
| **Published** | Immutable. Versioned. Callable from the API. Available in Stage. |
| **Archived**  | Read-only. Historical only.                                      |