fix: Add MCP protocol support to agent health checks#785
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Addie's probe_adcp_agent was reporting MCP agents as "unreachable" because validateAgentCards only checked for A2A-style agent-card.json endpoints. MCP agents use streamable HTTP instead. Changes: - Refactored validateSingleAgentCard to try A2A first, then MCP as fallback - Added 5s timeout to MCP validation using Promise.race - Returns combined errors when both protocols fail - Added tests for MCP protocol support Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
bokelley
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Jan 16, 2026
Addie's probe_adcp_agent was reporting MCP agents as "unreachable" because validateAgentCards only checked for A2A-style agent-card.json endpoints. MCP agents use streamable HTTP instead. Changes: - Refactored validateSingleAgentCard to try A2A first, then MCP as fallback - Added 5s timeout to MCP validation using Promise.race - Returns combined errors when both protocols fail - Added tests for MCP protocol support Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
bokelley
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Jan 20, 2026
Addie's probe_adcp_agent was reporting MCP agents as "unreachable" because validateAgentCards only checked for A2A-style agent-card.json endpoints. MCP agents use streamable HTTP instead. Changes: - Refactored validateSingleAgentCard to try A2A first, then MCP as fallback - Added 5s timeout to MCP validation using Promise.race - Returns combined errors when both protocols fail - Added tests for MCP protocol support Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
This was referenced Apr 25, 2026
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Summary
https://creative.adcontextprotocol.org/mcpdon't serve A2A-style agent-card.json - they use MCP protocol insteadprobe_adcp_agentnow tries A2A first, then falls back to MCP protocolTest plan
valid: truewith protocol "mcp"Bug reported by: Simon Safhalter
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