# SignalHarness Agent Trace Retry Analyzer

> SignalHarness Agent Trace Retry Analyzer is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Analyzes a submitted agent trace JSON to identify retry patterns, failures, and actionable diagnostics for agent execution flows.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/agent_trace_retry_analyze/invoke
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-agent-trace-retry-analyzer-a783c79a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NT4mzF_RsDoflu8aqP2vi

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability signalharness-agent-trace-retry-analyzer-a783c79a -d '<json body>'
```

Example prompt: Can you analyze this agent execution trace JSON and tell me what's causing the retries and failures — I need to know if there are any warnings or patterns I should fix: {paste trace JSON here}.

## When to prefer this

Choose this endpoint when you have a raw agent execution trace or retry log in JSON format and need automated diagnostic analysis — particularly when debugging why an agent repeatedly failed or retried a step. It is purpose-built for agent observability use cases on the SignalHarness platform, priced at $0.01 USDC per call via x402, making it cost-effective for frequent debugging cycles.

## Known failure modes

- Malformed or non-JSON request_json input returns a validation error
- request_json exceeding 65,536 characters is rejected
- Empty or too-short input (minLength:2) is rejected
- Payment failure on the x402 protocol results in no execution
- Ambiguous or incomplete trace data may yield low-confidence analysis with generic warnings

## How this service works

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## Output

Returns a JSON object containing an analysis_json field with diagnostics about the submitted trace, a list of warnings (e.g. data verification advisories), an evidence_scope indicator (e.g. 'caller_supplied_data'), a replay flag, the service_id, and a full execution receipt with payment metadata, latency, request/execution IDs, and a result SHA-256 hash.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "request_json": {
   "type": "string",
   "maxLength": 65536,
   "minLength": 2
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Verify the caller-supplied data before relying on this result."
   ],
   "service_id": "agent_trace_retry_analyze",
   "analysis_json": "{\"example\":\"schema-valid caller-supplied data\"}",
   "evidence_scope": "caller_supplied_data"
  },
  "status": "succeeded",
  "receipt": {
   "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "usage": [],
   "status": "succeeded",
   "network": "eip155:8453",
   "artifacts": [],
   "endedAtMs": 0,
   "latencyMs": 0,
   "paymentId": "example-payment",
   "receiptId": "example-receipt",
   "requestId": "example-request",
   "serviceId": "agent_trace_retry_analyze",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "10000",
   "resultSha256": "1fcdc22b8c7b75b2a2d47a8f28b69938dfa0fc3bd7dd2c42d4887725fc8b146a",
   "serviceVersion": "1.0.0",
   "settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
  },
  "artifacts": [],
  "requestId": "example-request",
  "executionId": "example-execution"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalharness-agent-trace-retry-analyzer-a783c79a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalharness.ai](https://www.zero.xyz/host/signalharness.ai/llms.txt)