NEXIO OBSERVABILITY SENTINEL · AI DEVELOPER TOOL

AI Repository Logging Gap Auditor

Scan your codebase for swallowed errors, blind database transactions, unlogged third-party APIs, and missing trace contexts before incidents occur in production.

Target Repository:
Pino (Structured JSON)·42 source files·11,420 LOC
Total Files Scanned
42
Excluding vendor/dist
Gaps Detected
6
Across 11,420 LOC
Critical & High
4
2 critical · 2 high
Patches Accepted
0 / 6
6 pending review
Observability Score
83%
Zero secrets exposed
Critical
98% conf.
src/services/payment.service.ts:84
processRefund()

A failed Stripe refund catch block catches the error but swallows it, returning a generic 500 without capturing Stripe decline codes, error messages, or request tracing IDs. Support engineers cannot diagnose failed customer refunds.

Category: Empty Catch / Swallowed Error
Critical
96% conf.
src/db/repositories/billing.repository.ts:142
deductAccountBalance()

Database balance mutation occurs inside a Prisma transaction. If a deadlock or rollback happens, it fails silently or throws uncaught without transaction isolation context or tenant identification.

Category: Database Transaction Failure
High
94% conf.
src/controllers/auth.controller.ts:67
exchangeOAuthToken()

Token exchange grants user access, but fails to log state transition or client user-agent. Additionally, if the provider rejects the grant, no security audit log is written, obscuring brute-force or hijacked code attempts.

Category: Critical Business Logic
High
93% conf.
src/workers/order-fulfillment.worker.ts:118
dispatchToWarehouse()

Exponential backoff loop retries HTTP calls to third-party shipping API. When retries are exhausted and the message drops to the dead-letter queue, zero warning is logged with the HTTP status code or latency.

Category: Retry & Timeout Logic
Medium
90% conf.
src/integrations/ai-orchestrator.ts:204
invokeAnthropicWithFallback()

When primary Claude 3.5 Sonnet request times out, it silently triggers fallback to GPT-4o without logging model degraded state, token usage, or latency discrepancy.

Category: External API Observability
Low
85% conf.
src/middleware/rate-limiter.ts:45
checkRateLimit()

When clients exceed the 95% request consumption threshold, there is no informational log. Adding high-watermark notice allows proactive scaling before hard 429 drops.

Category: Critical Business Logic
src/services/payment.service.ts#L84

processRefund()Empty Catch / Swallowed Error

Why this logging statement is missing or insufficient:

A failed Stripe refund catch block catches the error but swallows it, returning a generic 500 without capturing Stripe decline codes, error messages, or request tracing IDs. Support engineers cannot diagnose failed customer refunds.

Recommended Injection: Inside the catch block before rethrowing or sending response
Structured JSON
Zero Secrets Mask
Trace Correlation
Zero Perf Impact
Before & After AI-Generated Logging Patch
BEFORE (Insufficient Logging)Original
  try {
    const refund = await stripe.refunds.create({
      charge: chargeId,
      amount: refundAmountInCents,
    });
    return refund;
  } catch (err) {
    // Error is swallowed with no diagnostics
    return { success: false, error: "Payment refund failure" };
  }
AFTER (Production Patch)AI Recommended
  try {
    const refund = await stripe.refunds.create({
      charge: chargeId,
      amount: refundAmountInCents,
    });
    logger.info({ requestId, chargeId, refundId: refund.id }, "Payment refund completed successfully");
    return refund;
  } catch (err) {
    logger.error(
      {
        requestId,
        chargeId,
        refundAmountInCents,
        stripeErrorCode: (err as any)?.code,
        stripeDeclineCode: (err as any)?.decline_code,
        errMessage: (err as Error)?.message,
      },
      "Stripe refund transaction failed"
    );
    return { success: false, error: "Payment refund failure", code: (err as any)?.code || "REFUND_ERROR" };
  }
Never modifies repository files without developer review & explicit approval.Confidence: 98% (Pino AST Engine)