On demand
Run quality checks at any time
Open the Issues panel and run audits against the current file or all changes. Results show up inline, so you don't have to leave the editor or switch to a separate tool.
Features
Audits & Checks
Catch content issues before they ship, not after.
Zero ships with eight built-in content audits covering SEO, GEO, readability, broken links, and more. Run them on demand from the Issues panel, fix problems manually or in chat, or wire them to run automatically before every publish.
How it works
Surface and fix issues while editing
Audits run against the content you're editing and report issues directly in the Issues panel. Each issue tells you what's wrong, why it matters, and gives you two options: fix it yourself in the editor, or hand it off to the AI agent in chat.
Fix in chat
Let the agent handle it
Every issue has a 'Fix in chat' button. Click it, and the AI agent opens with full context, fixing the issue in seconds.
Pre-publish
Block bad content from shipping
Wire any audit to run automatically when a user clicks Publish. Your standards get enforced without anyone having to remember to check.
Built-in audits
Eight audits, ready to go.
Every audit ships enabled by default and works across all your content collections. You can easily turn off audits that are not relevant to your site.
SEO
Checks meta descriptions, title quality, heading hierarchy, image alt text, thin content, and internal linking — the on-page factors your editors can actually control.
Accessibility
Flags content-level WCAG 2.1 AA issues: missing alt text, unclear link labels, tables without headers, color-only cues, unexpanded acronyms, and missing media alternatives.
Readability
Catches issues with sentence complexity, paragraph density, passive voice overuse, jargon, monotonous structure, filler phrases, and typos.
Writing style
Flags writing that reads as AI-generated: generic phrasing, inflated vocabulary, robotic structure, and formulaic triads.
Broken links
Verifies that internal links, image references, anchor targets, and external URLs actually resolve. Catches 404s and dead references before they reach visitors.
Broken content
Catches content that is clearly incomplete, placeholder-only, or malformed — the kind of issue that slips through when entries are drafted and never finished.
Content consistency
Compares an entry against its collection peers and flags deviations: missing fields that every other entry has, structural gaps, or tone that breaks the established pattern.
GEO
Audits content for Generative Engine Optimization, so AI assistants like ChatGPT, Perplexity, and Google's AI Overviews can parse, understand, and cite your content.
Custom audits
Your team's standards, enforced automatically.
The eight built-in audits cover universal content quality. Add custom skills for rules that are specific to your team or domain, and run them as audits or pre-publish checks.
Custom skills
Enforce your own standards
A custom audit is a skill written in plain language. Use them to enforce any custom standard, such as brand voice, formatting conventions, required disclaimers, and domain-specific requirements.
Pre-publish gates
Make quality non-negotiable
Wire custom audits to run before publishing, enforcing your team's standards at the workflow level. Catch issues at the right time before your customers do.
Questions
Honest answers.
Yes. Custom skills can enforce any rule you can describe — brand voice guidelines, formatting conventions, domain-specific requirements. They're defined as prompts with access to the full content and rendered output.
Warnings can be acknowledged and overridden with a click. Errors require addressing the issue or explicitly dismissing it — this prevents accidental publishing of broken content while keeping the workflow flexible.
Skills run in parallel and typically complete in 3–8 seconds for a standard content page. They run when you click Publish, not while you're editing.
Every plan includes a monthly credit allowance that resets each billing cycle. Per-plan limits and add-on pack options are on the pricing page. Usage is metered per AI call based on tokens processed and the model used. Using external AI agents through Zero's MCP server does not consume your credits.
Where audits fit in your workflow.
Quality checks that run without anyone remembering to run them.
Connect your repo and your content gets audited on the way in and on the way out — catching issues while they're still easy to fix.