---
title: "Trust Tiers"
description: "The gold standard. These agents are: Fully tested with 90%+ coverage Clean audit trail Minimal capabilities Verified signatures Cost efficient Ready for production with minor caveats: Good test coverage (70 89%) Clean au"
resource: https://www.aiagents.nexus/docs/manual/trust-axis/trust-tiers
generated: { by: "process:nexus-agent-assets", at: 2026-09-07T09:13:03Z }
status: stable
---

# Trust Tiers Explained

## T1: Production-Grade (90-100)

The gold standard. These agents are:
- Fully tested with 90%+ coverage
- Clean audit trail
- Minimal capabilities
- Verified signatures
- Cost-efficient

## T2: Well-Tested (70-89)

Ready for production with minor caveats:
- Good test coverage (70-89%)
- Clean audit trail
- Reasonable capabilities
- Verified signatures

## T3: Functional (50-69)

Works but needs improvement:
- Moderate test coverage
- Some audit gaps
- Broader capabilities than needed
- May have cost spikes

## T4: Experimental (30-49)

Use with caution:
- Low test coverage
- Incomplete audit trail
- Broad capabilities
- Unpredictable costs

## T5: Unverified (0-29)

Not recommended for production:
- Minimal or no testing
- No audit trail
- Unknown capabilities
- Unknown cost behavior

## Setting Minimum Trust

```yaml
trust:
  minimumTier: T3
```

Agents below the minimum tier cannot be started.