# Injection

An Injection is code that runs inside a web page, like the content script of a Chrome extension. It runs apart from the page's own scripts. Anything Cowork puts into a page is an Injection, not an Extension.

## Two sources

| Source | Use | Example |
|---|---|---|
| An Extension's `ctx.browser.inject` | Package code reads or acts on a website's pages | A Connector that reads and sends a web chat's messages |
| **Settings › Injections** | A floating **micromeet** button on a chosen website; clicking a job on it asks the AI to do that job | Start a common job on an admin page in one click |

## Rules

- An Extension can inject only into websites listed in its `origins`, and only with the `browser` permission.
- A script first checks that the current address is the page it is meant for, and does nothing on any other page.
- A script does not read or send cookies, tokens or personal data.

## Related

- [Website Buttons (Injections)](https://docs.micromeet.ai/skills/injections.md): Add and remove a website button
- [Extension](https://docs.micromeet.ai/extend/extensions.md): Declaring `browser` and `origins`