> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://mezmo.ferndocs.com/exclusion-rules/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mezmo.ferndocs.com/_mcp/server.

# Set Exclusion Rules

Exclusion rules let you control what logs are stored. You can access Exclusion Rules by going to **[Usage > Exclusion Rules](https://app.mezmo.com/manage/exclusion-rules).**

There are three parts to a rule.

* **Hosts** - Exclude [hosts](https://docs.mezmo.com/docs/introducing-the-agent) configured on the app.
* **Apps** - Exclude [apps](https://docs.mezmo.com/docs/filters).
* **Query** - Create a [log query](https://docs.mezmo.com/docs/filters)

You can include one or all to exclude logs.

![Create exclusion rules using Hosts, Apps and Query. Use one or all exclusion rules.](https://uploads.developerhub.io/prod/2KW7/7plpxrr3owywqawm2i0bam58tfo63xhvu490y7ztxymfw8wjmq9c2zqrfm4ac0bu.png)