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

# GER-349 · Inter-Agent Schema Mismatch

> Agents in a multi-agent system communicate via structured outputs (YAML, JSON, function calls). Outputs from one agent do not parse cleanly against the input schema of the next agent. The chain produces silent corruption…

export const Badge = ({children, tone = "default", title}) => {
  const tones = {
    default: "bg-neutral-100 text-neutral-700",
    green: "bg-green-100 text-green-900",
    amber: "bg-amber-100 text-amber-900",
    blue: "bg-blue-50 text-blue-900",
    gray: "bg-neutral-50 text-neutral-600"
  };
  return <span className={`inline-flex items-center px-2 py-0.5 text-xs font-mono uppercase tracking-wider rounded ${tones[tone] ?? tones.default}`} title={title}>
      {children}
    </span>;
};

<div className="flex flex-wrap gap-2 mb-8 mt-2">
  <Badge tone="green">Documented</Badge> <Badge>Tier 3xx</Badge> <Badge>Layer L6</Badge> <Badge tone="blue" title="SVRNOS-assigned code in an HTTP-unassigned slot">Namespace-Claim</Badge> <Badge tone="gray">Added v0.2</Badge>
</div>

*Structural Moves*

## Definition

Agents in a multi-agent system communicate via structured outputs (YAML, JSON, function calls). Outputs from one agent do not parse cleanly against the input schema of the next agent. The chain produces silent corruption or hard failures at the parse boundary.

## Documented case

<Card title="Microsoft agent-framework: Invalid schema for ManagerSelectionResponse (GroupChatBuilder), missing 'selected_participant'" href="https://github.com/microsoft/agent-framework/issues/2681">
  bug-report
</Card>

## Tags

`multi-agent`

### Cite

```
SVRNOS. (2026). GER-349: Inter-Agent Schema Mismatch. Governance Error Register. https://docs.svrnos.com/ger/codes/349
```