FixLoopv0.1 MVP
API
Runtime Isolation
Nebius Token Factory
Security Invariants
Zero Shell Exec

Path traversal blocked • Strict probe allowlist • Zero token leaks

Target & Budget
TARGET PROJECT SELECTION

Project & Failure Scenario Workspace

Easy

Scenario A

Container crashes with KeyError: DATABASE_URL. Engine confirms missing variable without leaking secrets, proposes compose patch, and verifies in sandbox.

SC-a_missing_envActive Target
MediumActive Probe

Scenario B

Logs appear normal, but container is unhealthy. Compose probes /health while app routes /healthz. Requires active diagnostic probe to pinpoint mismatch.

SC-b_healthcheck_mismatchSelect Target
EasyActive Probe

Scenario C

Compose forwards host 8000 to container 5000, but app listens on 8000. Engine verifies listening ports with TCP probes and generates aligned port patch.

SC-c_port_mismatchSelect Target
Hard

Scenario D

External gateway connection resets intermittently. Engine exhausts local probes, refuses to hallucinate a fake patch, and reports insufficient_evidence honestly.

SC-d_insufficient_evidenceSelect Target
Hard

Scenario E

Application logs show database timeouts, but container inspect reveals OOMKilled: true (exit 137). Engine identifies kernel memory exhaustion.

SC-e_misleading_logsSelect Target
Medium

Scenario F

Logs report Redis connection error, but compose config explicitly sets REDIS_ENABLED=false. Engine detects contradiction and avoids unnecessary patch.

SC-f_contradictory_evidenceSelect Target
Medium

Scenario G

App failed startup due to invalid rate limit configuration. An adversarial patch with syntax regression is caught by sandbox and reverted.

SC-g_failed_patch_regressionSelect Target

No Investigations Recorded Yet

Select a scenario above and click "Start Investigation" or "3-Min Judge Demo" to begin an evidence-driven diagnostic cycle.