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

# Who decides an answer

> For every prompt, on every model, the pages the answers actually leaned on — whether you are on each one, and the next move.

Share of voice and citation rate tell you whether you won a prompt. This page tells you **why** — which pages the answer read, how much weight each one carried, and what to do about the ones that are not yours.

## The grain

One group per prompt, per model, per surface. Surface is in the grouping for the same reason it is everywhere else in the product: a consumer answer and an API answer draw on different pages, and averaging them produces a plan that fits neither.

Country is deliberately **not** in the grouping. A page that decides a prompt in the US decides it in the UK too, and splitting by country here would quarter every sample for no gain in what to do next.

## Weight, not raw citations

Sources are ranked by **citation share × position**, not by how many times a page was cited. A page cited once at the top of every answer decided more than a page cited twice near the bottom of one, and a ranking that could not tell them apart would keep sending you after the loudest source instead of the one that actually decides.

Position weight is `1 / mean position`. A citation the model attached without a clear position is scored as if it sat at the back of the list — stated as such, rather than dropped or quietly treated as first.

## Classification: yours, a competitor's, or someone else's

Every source in a group is classified the same way the [sources report](/measure/citations-and-sources) classifies it, so a domain is never "ours" on one screen and "third party" on another:

* **Yours** — a page on your own domain.
* **A competitor's** — a page on a domain you track as a competitor.
* **Someone else's** — everything else: review sites, forums, documentation hubs, comparison pages, listicles.

## "You are on it"

A source is marked **on it** in either of two cases:

* it is your own domain, or
* you have a placement there whose execution status is **verified**.

An unverified or unknown placement is never shown as on it. This is the same discipline as everywhere else in the product: a claim without evidence does not get to look true.

## The next move

Each source carries a recommendation: **fix your own page**, **get listed**, **pitch**, **answer the thread**, or **write something cite-able**. Today, every workspace gets this from one static, per-engine table, because the observations layer this recommendation could instead draw on does not have enough evidence yet:

| Engine             | What decides answers there                                  | The proven move             |
| ------------------ | ----------------------------------------------------------- | --------------------------- |
| ChatGPT            | Your own docs and pricing pages                             | Fix your own page           |
| Claude             | Review sites and listicles                                  | Get listed                  |
| Perplexity         | Threads, YouTube and roundups                               | Be in the thread or roundup |
| Gemini             | Threads, YouTube and roundups                               | Be in the thread or roundup |
| Google AI Overview | Threads, YouTube and roundups (closest documented behavior) | Be in the thread or roundup |

Once your own workspace has read enough answers on a given source — at least 20 successful reads — the recommendation switches from the static table to what your own history shows. A recommendation always says which one it came from, so you know whether you are looking at a general rule about the engine or a pattern proven in your own data.

<Note>
  Every row and every group carries **n**: the successful answers behind it, in the same window and counted the same way as the rest of the product. A share without its n is noise in a confident font.
</Note>

## Where to find it

* On the **home page**, as the default view onto why you are winning or losing.
* As the agent tool **`deciding_sources`**, so a chat or automation can pull the same map.
* Over the REST API, at `GET /v1/deciding-sources` (and its equivalent under a project, `GET /v2/projects/{id}/deciding-sources`) — both take `?prompt=` to narrow to one prompt and `?days=` to set the window.

```bash REST theme={null}
curl "https://api.attensira.com/v1/deciding-sources?prompt=prm_9c2&days=30" \
  -H "Authorization: Bearer atn_live_<your key>"
```

```json MCP theme={null}
{
  "name": "deciding_sources",
  "arguments": { "prompt": "prm_9c2", "days": 30 }
}
```

See [Reading the numbers](/measure/reading-the-numbers) for how to treat `n`, `null`, and significance everywhere else these shapes appear.