> ## Documentation Index
> Fetch the complete documentation index at: https://docs.custral.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Tools

> What the AI can do. Read records, create properties, send email, search the web.

Tools are the actions available to chat agents. When the AI decides to take an action, it calls a tool. The tool runs, and its result is fed back to the AI so it can continue the conversation. This is what lets an agent do more than talk: it can look up a record, draft an email, or search the web on your behalf.

<Tip>
  Looking for what you can actually ask? See the [capability library](/ai/tools/library), a plain-language catalog with example prompts.
</Tip>

## Tool groups

| Group              | What it does                                                          |
| ------------------ | --------------------------------------------------------------------- |
| Schema             | Create and inspect objects and properties.                            |
| Blueprint          | Design multiple related objects at once (used by the schema builder). |
| Workspace template | Import a template into the workspace.                                 |
| Records            | Read, write, and search records.                                      |
| Filter             | Build a filter for a query.                                           |
| Email              | Draft, send, and list email.                                          |
| Conversation       | Read and act on conversation threads.                                 |
| Calendar           | Read calendar events and availability.                                |
| Document           | Read and create workspace documents.                                  |
| Presentation       | Build a fully branded slide deck from a prompt.                       |
| Task               | Create, complete, and assign tasks.                                   |
| Workflow           | Read workflow definitions.                                            |
| External           | Read properties sourced from connected integrations.                  |
| Workspace          | Read and export workspace metadata.                                   |
| Research (web)     | Search the public web.                                                |
| Builder            | Build pages, views, and components.                                   |

## Web-access tools

Some tools reach the public internet, web search and browsing. You can keep an agent fully air-gapped from the web by turning off its web access; doing so removes these tools regardless of which other tools the agent is allowed to use.

## Per-agent gating

Each chat agent can be limited to a chosen set of tools. Leave the list empty to give the agent every tool, or pick a subset to keep it focused. See [Tool gating](/ai/chat-agents/tools) for how to set this up.


## Related topics

- [Provider Tools](/ai/provider-tools.md)
- [Tool Gating](/ai/chat-agents/tools.md)
- [List MCP tools](/api-reference/mcp/list-mcp-tools.md)
- [MCP Server](/dev/mcp/overview.md)
- [What the assistant can do](/ai/tools/library.md)