<div class="eval-home-hero">
<span class="eval-home-kicker">Eval Labs Canon v1.0</span>
<h1 class="eval-home-title">The evaluation system for building trustworthy AI behavior.</h1>
<p class="eval-home-subtitle">Eval Labs helps teams test responses, review quality, catch regressions, and improve Lucia’s intelligence without relying on vibes.</p>
</div>
> [!summary] Official homepage
> This is the front door to the Eval Labs documentation system. Use this page as the published homepage for `docs.evaluationlabs.ai`.
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## What Eval Labs Is
Eval Labs is a product for testing and improving AI behavior.
For Lucia, Eval Labs is the place where response quality becomes visible, reviewable, and improvable.
Eval Labs exists to answer:
- Did the response understand the user?
- Did it preserve truth?
- Did it reduce operator burden?
- Did it feel calm, useful, and trustworthy?
- Would a real operator keep using the system after reading it?
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## Plain English
Eval Labs is not a generic testing dashboard.
It is the operating room for AI behavior.
It helps employees look at real prompts and responses, judge whether the system helped, and record exactly what needs to improve.
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## Start Here
1. [[00 Foundation/00 - What Eval Labs Is]]
2. [[10 Philosophy/00 - Evaluation Philosophy]]
3. [[30 Running Evals/00 - Running Your First Eval]]
4. [[40 Reviewing Results/00 - Review Workflow]]
5. [[50 Failure Modes/00 - Common Failure Modes]]
6. [[70 Eval Labs + Lucia/00 - How Eval Labs Improves Lucia]]
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## Current Product Truth
<ul class="eval-status-list">
<li><strong>Eval Labs</strong> → first-class product area</li>
<li><strong>Primary current use</strong> → improving Lucia behavior</li>
<li><strong>Core workflow</strong> → prompt, response, review, notes, refinement</li>
<li><strong>Quality bar</strong> → usefulness, truth, containment, clarity</li>
<li><strong>Long-term role</strong> → regression testing and intelligence tuning</li>
</ul>
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## Core Rule
> [!warning] No vibes-only evaluation
> If a response “sounds fine” but does not reduce burden, preserve truth, or give a useful next move, it does not pass.