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Testing Guides & Best Practices

Explore comprehensive guides, tutorials, and best practices for automated testing, debugging, and quality assurance. Stay updated with the latest testing tools and techniques.

Prompts Won’t Fix Race Conditions: Designing Code-Debugging AI That Understands Concurrency

Prompts Won’t Fix Race Conditions: Designing Code-Debugging AI That Understands Concurrency

Most LLM debuggers fail on deadlocks, races, and memory visibility. This article shows practical patterns to give code debugging AI a happens-before model via traces, schedule exploration, and static analysis—so it stops hallucinating fixes and finds real concurrency bugs.

Time-Travel RAG for Code Debugging AI: Build-Specific Context to Fix Regressions Fast

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Time-Travel RAG for Code Debugging AI: Build-Specific Context to Fix Regressions Fast

How to pair a repo-time-indexed knowledge base with your CI so a code debugging AI can fetch exact code, logs, and configs from the failing build, avoid hallucinations, and propose reproducible fixes.

DebuggAI Team

16 min read

11/8/2025

Record, Replay, Repair: How a Code Debugging AI Can Safely Reproduce Production Bugs

Record, Replay, Repair: How a Code Debugging AI Can Safely Reproduce Production Bugs

A deep dive into record-replay, hermetic builds, and sandboxed replays that let a code debugging AI turn logs into reliable reproductions—no production access, reduced data leakage, and faster, higher-confidence fixes.

Deterministic Debugging: How Time-Travel Traces Supercharge Code-Debugging AI

Deterministic Debugging: How Time-Travel Traces Supercharge Code-Debugging AI

How record–replay, snapshotting, and deterministic builds let a code-debugging AI step through real failures instead of guessing. Includes architecture patterns, rr, eBPF, dev containers, CI hooks, privacy, and cost tradeoffs.

Time‑Travel Builds: Let Your Debug AI Rewind CI and Production To Pinpoint Root Cause

Time‑Travel Builds: Let Your Debug AI Rewind CI and Production To Pinpoint Root Cause

A practical blueprint for record and replay pipelines, hermetic builds, and trace capsules that give debug AI deterministic context, eliminate flaky tests, reduce MTTR, and make root cause analysis measurable and repeatable.

Stop Chatting, Start Tracing: Observability Patterns for Code Debugging AI

Stop Chatting, Start Tracing: Observability Patterns for Code Debugging AI

A practical, opinionated guide to instrumenting code with traces and invariants, building sandboxed repros, and wiring CI, incident links, and rollback-aware workflows so an AI code debugger can explain, verify, and safely ship fixes.

Building Reliable Browser Agents That Actually Understand the Web: A Deep Dive into surfs.dev’s SDK, Datasets, Eval Harness, and Monitoring

Building Reliable Browser Agents That Actually Understand the Web: A Deep Dive into surfs.dev’s SDK, Datasets, Eval Harness, and Monitoring

How to train, build, evaluate, and monitor reliable browser agents with surfs.dev, Playwright/Puppeteer, and LLMs—complete guide with code and best practices.

Make Code Debugging AI Prove It: A Proof‑of‑Fix Contract for CI Pipelines

Make Code Debugging AI Prove It: A Proof‑of‑Fix Contract for CI Pipelines

Stop blind trust in AI-generated patches. Enforce a proof‑of‑fix contract in CI: a failing repro, a minimal test, trace/log evidence, and perf/safety checks — or the patch doesn’t merge.

When Logs Attack: Defending Debug AI from Adversarial Telemetry and Prompt Injection

When Logs Attack: Defending Debug AI from Adversarial Telemetry and Prompt Injection

Production logs can jailbreak your code debugging AI. Learn threat models, detection patterns, and mitigations to stop poisoned stack traces, crafted error payloads, and CI logs from hijacking tools.

Security Strategies for AI Browser Agents: Action CSP, Capability Sandboxes, and Origin-Bound Tokens

Security Strategies for AI Browser Agents: Action CSP, Capability Sandboxes, and Origin-Bound Tokens

A practical blueprint: define an Action Content Security Policy for agents, enforce least-privilege via capability sandboxes and origin-bound tokens, and add an action firewall to block prompt injection, CSRF, and data exfiltration.

Deterministic Replays for Debug AI: Building Record and Replay Pipelines that Make Bugs Reproducible

Deterministic Replays for Debug AI: Building Record and Replay Pipelines that Make Bugs Reproducible

How to feed your debug AI consistent, privacy-safe reproductions using eBPF, OpenTelemetry, and containerized snapshots, so it finds root causes instead of hallucinating fixes.

Log Injection Attacks on Debug AI: How Malicious Stack Traces Hijack Fixes

Log Injection Attacks on Debug AI: How Malicious Stack Traces Hijack Fixes

As teams pipe logs into debug AI, attackers can embed prompts in errors to steer patches. This article maps the threat model and offers defenses: sanitization, provenance, policy guards, and sandboxed execution.

Stop Guessing: Use End‑to‑End Tests as the Oracle for Code‑Debugging AI

Stop Guessing: Use End‑to‑End Tests as the Oracle for Code‑Debugging AI

Turn flaky LLM hints into reliable fixes by feeding E2E tests, traces, and record‑replay to a code debugging AI. Target failing specs, reproduce bugs, and ship changes that pass CI—without overfitting or leaking data.

Observability-Driven Debug AI: Turn Traces and Telemetry into Reliable Root Cause

Observability-Driven Debug AI: Turn Traces and Telemetry into Reliable Root Cause

A practical playbook for wiring OpenTelemetry, logs, and time-travel snapshots so your debug AI can auto-reproduce bugs, validate fixes in CI, and cut hallucinations across distributed systems.

Reproducible Code Debugging AI in CI/CD: Pin Prompts, Seed Models, and Trace Artifacts for Auditable, Rollback-Safe Fixes

Reproducible Code Debugging AI in CI/CD: Pin Prompts, Seed Models, and Trace Artifacts for Auditable, Rollback-Safe Fixes

Make AI-driven bug fixes deterministic and compliant. Pin prompts and model versions, control seeds, capture build provenance, and trace diffs to reproduce, review, and roll back safely.

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