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Built for the Claude Code community with Claude Code by @mertduzgun

Independent project, not affiliated with Anthropic
  1. MCP
  2. /
  3. Agent Output Guard

Agent Output Guard

Editor's Note

When you're running multi-agent systems and need to validate data at handoff boundaries, this server gives you five tools that work without LLM calls. You get verify_json_schema for structure checking, detect_hallucination_markers to scan for uncertainty phrases like "I think" or "probably", validate_data_freshness to check timestamps against max age thresholds, cross_reference_check to compare outputs from multiple agents, and output_consistency_score for overall reliability metrics. It's pure computation, so there's no API cost per validation. Reach for this when Agent A's output feeds Agent B and you need programmatic guards against format mismatches, stale data, or fabricated content before the receiving agent acts on it.

Install

claude mcp add --transport stdio io.github.agenson-horrowitz-agent-output-guard uvx agent-output-guard
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