> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getvector.me/llms.txt
> Use this file to discover all available pages before exploring further.
# Automatic re-evaluation
> Let Vector refresh your feature comparison and dossier automatically when monitoring detects a competitor release.
When [monitoring](/monitoring/set-up-monitoring) spots that a [competitor](/competitors/add-competitors) shipped something — a new entry in their release notes, changelog or blog — Vector can re-check that competitor against your features on its own, and update the [comparison](/competitors/compare-competitors) without waiting for you.
## Keep the comparison current automatically
Open **Monitoring** and go to the **Settings** tab. Two switches control this, and both are on by default:
* **Auto-update side-by-side comparison when monitoring detects a change** — re-evaluates the competitor as if you'd clicked **Evaluate vs comparison** in their dossier.
* **Create a new dossier revision after auto-update** — saves each automatic re-evaluation as a new version in the competitor's [dossier](/competitors/competitor-dossier), marked as automatic.
Automatic re-evaluation runs only while both are on. The first switch can't be turned on while the second is off, and turning the second off stops re-evaluation too — monitoring then just logs the change and notifies your **Inbox**.
The settings apply to the whole [workspace](/account-and-team/workspaces), not to individual competitors.
## Decide whether it's worth the cost
Each automatic re-evaluation is a paid AI run on your [AI key](/getting-started/connect-a-provider), on top of the ones you start yourself. Keep it on if you want the comparison always current. Turn it off if you'd rather decide when evaluations run — then re-evaluate a competitor from their dossier when you choose.
## What starts a re-evaluation
Only a change in a source that says something about features:
* release notes
* changelog
* blog
* resources of the **Other** kind
Changes to pricing, help and docs pages, the feedback portal, social media, reviews or job postings never start one, whatever your settings; they're logged and notified as usual.
A change held for review because Vector isn't confident in it doesn't start one either, until you confirm it. See [Finding confidence and feedback](/monitoring/finding-confidence).
To avoid repeat runs, a competitor is re-evaluated automatically at most once every 24 hours, and never twice at the same time.
## See what a re-evaluation changed
When a re-evaluation finishes, you get an **Inbox** notification saying it ran after a change on that source, and listing which feature statuses changed, from what to what. Its link opens the source page. The new version in the dossier is marked as automatic, so you can tell it apart from one you ran yourself.
If nothing changed, no new version is created — the check log records that the competitor was re-evaluated with no changes, so the dossier's history isn't padded with duplicates.
## Find out why a re-evaluation didn't run
Every automatic re-evaluation — including the ones skipped — is recorded in the **Check log**, with the reason:
| Reason | What to do |
| -------------------------------------- | ----------------------------------------------------------------------------------------------------------- |
| Re-evaluated less than 24h ago | Nothing: the next change after 24 hours will trigger one |
| A re-evaluation is already in progress | Nothing: it'll finish on its own |
| Competitor has no URL | Add their site in the competitor list or their dossier |
| Competitor has never been evaluated | Run **✦ Evaluate vs comparison** once in their dossier — automatic runs only refresh an existing evaluation |
| Build the comparison taxonomy first | There's no comparison framework to evaluate against yet |
If a re-evaluation fails, the failure is recorded the same way, and monitoring carries on as normal.
## Where to go next
Reading findings by hand first.
Judging whether a finding was right.