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# SEND steps can search and reference Knowledge

Contextual AI-generated `SEND` steps in Playbooks can now use Knowledge for a single reply. A reference in General Guidelines applies across the whole Playbook. A search or a reference in a `SEND` step grounds the reply of that step.

## What's new

Two options appear under **Knowledge** in the `@` menu of a Contextual AI-generated `SEND` step.

* **Search Knowledge.** Select **Search Knowledge** to add a **Search** pill. When the step runs, the AI Agent writes a search query from the instruction and the recent conversation. The Agent then searches Knowledge and writes the reply from the results. Name a topic in the instruction to narrow the search.
* **Reference an article.** Select an article to ground the step's reply in its content. The menu shows the locale of each article and marks articles that have availability rules. A step can reference up to 5 articles.

Availability rules apply to both options. Fixed message `SEND` steps do not support them.

See [Search Knowledge in `SEND` steps](/docs/automation/playbooks/step-reference#search-knowledge-in-send-steps).