Multi-agent coordination broke down. MAST (multi-agent-centric) formalizes this best.
How this class maps to the two leading agent-failure taxonomies.
MAST
Communication breakdown, Conflicting outputs
TRAIL
Task orchestration errors
Send your agent's trace to the ingest endpoint. Snapback diagnoses it — including this class — and returns a structured verdict with the root cause and a concrete fix. Pre-flight screening is free; you only draw credit on a full diagnosis.
curl -X POST "https://ingest.snapback.sh/v1/traces" \
-H "Authorization: Bearer vdk_YOUR_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"trace_id": "run-42",
"steps": [
{ "agent": "planner", "action": "...", "output": "..." },
{ "agent": "executor", "tool": "...", "error": "..." }
]
}'Get your ingest token when you create a source. Already emitting OpenTelemetry? Point your exporter at /v1/traces/otlp — no re-instrumentation. AI agents can call the same pipeline over MCP (diagnose_trace).
What comes back
Illustrative — your verdict is diagnosed from your actual trace.
{
"failure_class": "coordination_failure",
"failed_at_step": 2,
"failure_agent": "executor",
"root_cause": "<the specific cause, inferred from your trace>",
"fix_suggestion": "<a concrete, applicable fix>",
"confidence": 0.9
}Catch this failure automatically
Snapback watches your agents and diagnoses this class the moment it happens — with the specific trace, the likely cause, and the fix.
Start free