> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cloudthinker.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Resources
> Discover cloud assets across accounts, scope scans by tags, and act on cost, security, and performance findings from one inventory.
Resources gives you a live, cross-cloud inventory: run targeted discovery, filter by service and tag, and trigger optimization actions per resource. Screenshots show AWS, but the workflow applies to any supported cloud.
## Prerequisites
* At least one cloud account connected (AWS, GCP, or Azure).
* Optional: tags you plan to scope discovery with, such as `ENV=dev` or `Environment=production`.
## Discover resources
Go to **Infrastructure → Resources**, click **Connect** for your cloud (AWS shown here), and start **Resource Discovery**. The banner shows the flow: connect, run the first scan (\~30s), then automate.
Choose the services to include (names vary by cloud; AWS shown in the screenshot). Use **Select All** or search to narrow, then save when the selection matches your discovery scope.
Add environment tags such as `ENV=dev` or `Environment=production`, or use **Add Custom Tag** for teams, projects, and cost centers.
* **No selected tags** → all resources are scanned.
* **Selected tags** → only resources matching those tags are scanned.
The inventory shows totals, potential savings, and per-resource entries. Filter by resource name, service, or category (for example, Compute). Hover **Actions** on a row to run **Optimize Cost**, **Scan Security**, or **Check Performance**.
## How discovery scope affects other features
| Feature | Relationship to discovery |
| -------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Agents | Operate on any resources your cloud permissions allow, not just discovered ones. Discovery makes those resources easier to manage inside CloudThinker. |
| [CloudKeepers](/guide/infrastructure/cloudkeepers) | Keepers run across all permitted resources in your cloud; they are not limited by discovery scope. |
| [Assessment](/guide/infrastructure/assessment) | Evaluates only resources that have been discovered — run discovery first. |
## Tips
* Start broad, then narrow with tags so critical resources aren't missed.
* Note which services and tags each scan covers so discovery configurations stay reproducible.
* After each scan, act on high-value cost and security findings first.
## Next steps
Set up continuous monitoring so new resources are automatically evaluated
Run a Well-Architected assessment on your discovered resources
Manage and track recommendations from resource optimization actions
Visualize discovered resources and their dependencies
