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

# Inspect a run

> The main Trace view — a timeline of everything that happened.

Open any Trace to see the full timeline of a single run. Every step is expandable; anything with a payload has a copy-to-clipboard button.

## Layout

The Trace view has three columns:

* **Left: timeline** — every step in order, with duration bars.
* **Middle: step details** — inputs, outputs, metadata for the selected step.
* **Right: context** — variables in scope, retrieved chunks, memory ops, verification results.

Resize any column. Collapse the context column when you don't need it.

## Step types

Steps you'll see on the timeline:

| Step             | What it shows                                                     |
| ---------------- | ----------------------------------------------------------------- |
| **Trigger**      | The incoming payload and scope.                                   |
| **Retrieval**    | Query + top-K chunks returned. Expand for full ranking breakdown. |
| **Memory read**  | Query + returned items, with scope.                               |
| **Memory write** | Content + scope + importance.                                     |
| **Model call**   | Full prompt (system + messages), model output, token counts.      |
| **Tool call**    | Tool name, args the model chose, response, error if any.          |
| **Router**       | Which branch was taken, and why.                                  |
| **Action**       | Which Actions fired, in order, with results.                      |
| **Verification** | Claims extracted, graph checks, verdict.                          |

Icons and colors let you scan the timeline visually for problems (red = error, yellow = warning, blue = normal).

## Expanding a step

Click any step to focus it in the middle column. Details include:

* **Timing** — wall clock start, duration, wait time (waiting on external services).
* **Cost** — dollar amount, broken into model/tool/embedding.
* **Inputs** — everything that went in.
* **Outputs** — everything that came out.
* **Metadata** — provider, region, deployment ID.

Long text fields (prompts, tool responses) have a "view full" button that opens them in a resizable modal.

## Navigating between steps

* `↓` / `↑` — next / previous step.
* `⇧↓` / `⇧↑` — jump to next / previous step of the same type.
* `Cmd+F` — search within the Trace (matches steps, payloads, and metadata).

## The final answer

At the bottom of the timeline, the final answer sent to the user. Highlighted with:

* **Citations** — hover over any citation number to see the chunk it references.
* **Warnings** — if verification demoted or flagged part of the answer.
* **Version** — which published Flow version handled this run.

## Reproducing a run

Right-click a Trace → **Replay**. Nora re-runs the exact same input against the current Draft (or a specified version). Useful for testing whether a change fixes the issue you're investigating.

Replay produces a new Trace. Original is unchanged.

## Errors and partial failures

Runs that partially succeeded are marked with a mixed status. The failed step is highlighted red; downstream steps show whether they proceeded or were skipped.

Common patterns:

* Tool call failed → Agent retried with a different arg → succeeded.
* Retrieval returned zero results → Agent apologized and finished.
* Model timeout → Flow rolled to fallback model → succeeded.

The Trace makes each visible so you can tell "recovered" from "silently degraded."