Laravel + Python

AI modifies your code.
Only when you say so.

DiffGate analyzes your codebase, proposes changes as structured diffs, waits for your approval, then tests and deploys to staging. Nothing ships without your sign-off.

Get Started Free → See How It Works
The Pipeline

From instruction to staging. Zero breakage.

Every modification flows through six stages. The AI never acts alone.

01
🔍

Analyze

AST parsing, dependency graphs, route/controller/model detection across your entire project.

02
📝

Pre-Dev Report

Impact analysis: files affected, functions touched, risks identified, tests required.

03
✅

Human Gate

You validate, refuse, or modify. No code changes until you approve. Ever.

04
🛠

Generate Diffs

Precise, surgical modifications. Diffs only. No global rewrites, no mass deletions.

05
🛡

Test + Scan

PHPUnit, pytest, OWASP ZAP, Snyk, SonarQube. Automated quality and security.

06
🚀

Deploy Staging

Sandboxed Docker environment. Your production stays untouched.

How it works

You write instructions. DiffGate writes diffs.

Tell DiffGate what you need in plain language. It interprets, analyzes impact, and generates precise code modifications you can review line by line before anything happens.

  • + Diffs only. Never rewrites your entire file.
  • + Full dependency graph so nothing breaks downstream.
  • + Pre-dev report shows every file and function affected.
  • + Automatic rollback if any test fails.
📄 app/Services/PaymentService.php
42 class PaymentService
43 {
44- public function charge($amount)
44+ public function charge($amount, $idempotencyKey)
45 {
46+ if ($this->isDuplicate($idempotencyKey)) {
47+ return $this->getPreviousResult($idempotencyKey);
48+ }
49 return Stripe::charges()->create([
50 'amount' => $amount,
51+ 'idempotency_key' => $idempotencyKey,
52 ]);
Multi-Agent Architecture

Four specialized agents. One mission.

Each agent handles a distinct responsibility. They collaborate, challenge each other, and produce better code than any single model could.

💻

Dev Agent

Writes the code. Generates precise diffs based on your instruction and the codebase context.

👁

Reviewer Agent

Critiques logic, detects inconsistencies, flags potential regressions before any test runs.

🧪

QA Agent

Generates unit and integration tests. Runs PHPUnit and pytest. Validates every modification.

🔒

Security Agent

OWASP ZAP, Snyk, SonarQube. Scans for vulnerabilities, injection risks, and auth bypasses.

Built for Production

Security is not optional.

Every safeguard exists because production code deserves better than "it works on my machine."

🗃

Sandboxed Execution

Every modification runs in an isolated Docker environment. Your production code is never touched directly.

🔄

Automatic Rollback

If tests fail or security scans flag issues, changes are reverted. Zero manual cleanup.

📋

Complete Audit Trail

Every AI action is logged. Pre-dev and post-dev reports document what changed and why.

🛠

Diff-Only Modifications

No mass rewrites. No file deletions without reinforced validation. Surgical changes only.

🔐

Auth Protection

Authentication and authorization files require extra validation steps. No shortcuts on security-critical code.

📈

Quality Scoring

SonarQube integration provides code quality metrics, maintainability index, and technical debt tracking.

AI should accelerate developers, not replace their judgment.

DiffGate puts the human back in the loop. Your codebase stays yours. The AI just makes it better, one validated diff at a time.

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