Product documentationUpdated February 12, 2026
Platform overview
How Total Shift Left turns your API contract into tests, coverage, and CI-ready quality gates—end to end.
What Total Shift Left is
Total Shift Left is a spec-first API quality platform. It helps teams convert an OpenAPI/Swagger contract into:
- repeatable test runs
- coverage visibility
- CI/CD-friendly workflows
The goal is simple: catch contract drift and breaking behavior early—before it reaches production.
Core building blocks
API specifications
Your OpenAPI/Swagger spec is the source of truth for:
- endpoints, parameters, and schemas
- expected status codes and shapes
- coverage expectations (what’s tested vs what exists)
Test generation
Generate a baseline suite quickly, then iterate:
- start with safe, read-only endpoints
- scope by tags/paths to keep early runs fast
- expand to write endpoints once auth and test data are ready
Configuration
Stable runs depend on predictable inputs:
- base URL per environment (dev → stage → prod)
- authentication strategy
- timeouts/retries that reduce flaky failures
See the Configuration section for fundamentals.
Runs and results
A run produces:
- pass/fail outcomes
- failure evidence you can reproduce
- coverage insights aligned to the spec
Recommended workflow
- Connect a spec
- Generate a baseline suite
- Run against a dev/stage environment
- Stabilize auth + test data
- Integrate into CI as a quality gate
What to read next
Related articles
- Managing Projects · Product documentation
- Project · Product documentation
- Project Operations · Product documentation
- Project Settings · Product documentation
- Feature management · Product documentation
- Project Export/Import · Product documentation
Next steps
- Getting started · Install + connect your spec
- Configuration fundamentals · Stabilize runs
- Initial configuration · Users, licensing, projects
- Release notes · Updates and fixes
Still stuck?
Tell us what you’re trying to accomplish and we’ll point you to the right setup—installation, auth, or CI/CD wiring.