An Agent Trust Score is a dynamic metric in a multi-agent system quantifying 'how reliable this <a href="https://claudecowork-me.com/en/glossary/plugin-workflows/sub-agent/" target="_blank" rel="noopener">Sub-Agent</a>'s past performance has been,' calculated from factors like historical accuracy and anomalous behavior records, giving an Orchestrator or other Sub-agents a quantifiable basis for deciding whether to trust a given source's output, rather than either unconditionally trusting everything or demanding re-verification of everything.