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

# atb (roadmap)

> Deterministic antibiotic decision — planned, not yet available.

<Warning>
  **Not yet available.** `atb` is designed but not implemented. There is no
  endpoint or MCP tool yet — this page describes the intended behavior so
  integrators can plan. It will appear in the API Reference and `tools/list` only
  once shipped.
</Warning>

## What it will do

`atb` will provide a **deterministic** antibiotic decision (antibioclic-style)
from a clinical situation — not an LLM guess. Given a situation, it returns
either a **decision** or a **request to enrich the profile**.

## The agentic pattern

When required information is missing, `atb` will not guess. It will return
**what is missing**, so an agent can enrich the situation and call again:

```
situation ──▶ atb ──▶ decision
                 └──▶ "missing: <field>"  → agent enriches → atb again
```

This keeps the engine deterministic while staying usable inside an agent loop.

## Intended shape (subject to change)

```json theme={null}
// Request
{ "situation": { /* clinical situation fields, TBD */ } }

// Response — either a decision…
{ "decision": { "antibiotic": "...", "dose": "...", "duration": "...", "rationale": "..." } }

// …or a request for more information
{ "needs": ["fonction rénale", "allergies"] }
```

<Note>
  The exact situation and decision contracts are being designed. This page will
  be replaced by the live reference when `atb` ships.
</Note>