# Fix: robots.txt declares Content-Signal AI-usage preferences

> Web-audit fix skill for the `content-signals` check (Bot & crawl policy, SHOULD).

## Goal

Declare Content-Signal AI-usage preferences in robots.txt.

## Fix

Add `Content-Signal` directives to `robots.txt` (contentsignals.org): `ai-train`, `search`,
and `ai-input` set to `yes` or `no`. They express usage preferences at a finer grain than a
blanket allow/deny.

## Resources

- [contentsignals.org](https://contentsignals.org/)

## Copy-paste prompt

Paste this into your coding agent, replacing the Issue line with the Result line from [your audit](https://anc.dev/web-audit):

```text
Goal: Declare Content-Signal AI-usage preferences in robots.txt
Issue: <the audit's finding for this check>
Fix: Add `Content-Signal` directives to `robots.txt` (contentsignals.org): `ai-train`, `search`, and `ai-input` set to `yes` or `no`. They express usage preferences at a finer grain than a blanket allow/deny.
Skill: https://anc.dev/web-audit/skill/content-signals
Docs: https://contentsignals.org/
```

## Verify

Re-run the audit at [https://anc.dev/web-audit](https://anc.dev/web-audit) or call the `audit_website` MCP tool; the `content-signals` check should report `pass`.