Interactive sandbox

Watch Apex turn intent into a verified change.

Follow a sample autonomous run through all 13 phases. Pause, step through, or jump to any gate—everything here runs locally in your browser.

13
Pipeline phases
0
Backend calls
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apex / sample-run-7b42 Static simulation
Running
Sample task Add rate limiting to POST /api/login

Allow 10 requests per minute, return HTTP 429 after the limit, and preserve existing authentication behavior.

TypeScript 3 files 5 checks
01 / 13
8% complete

Ground

Phase 01

Translate the request into a precise execution contract.

Contract confidence 96%
Scope fidelity98
Verification100
Regression riskLow
Execution trace
00:08
00:08 GROUND Task normalized: endpoint, limit, and success criteria identified.
ground.output
Sample data
task:
  title: Add API rate limiting
  target: POST /api/login
  limit: 10 requests / minute
  verify:
    - npm test
    - npm run lint
What you are seeing

A transparent run, not a magic progress bar.

01

Every phase emits evidence

Plans, diffs, test output, evaluation scores, and delivery artifacts remain inspectable.

02

Verification is a gate

Eval and hardening checks must pass before the sample run can package or ship.

03

Humans retain control

The walkthrough ends at a review-ready branch. Merge and deployment remain explicit gates.

Read the developer docs