DriftLens detects risky configuration drift between environments (dev/stage/prod) across .env, YAML, and JSON files.

Subtle config differences cause expensive release failures. DriftLens compares two environment snapshots and ranks drift by risk.

cd driftlens
python3 -m venv .venv
source .venv/bin/activate
pip install -e .

# compare two folders
# e.g. ./configs/stage vs ./configs/prod
driftlens scan --baseline ./configs/stage --target ./configs/prod

# markdown output
driftlens scan --baseline ./configs/stage --target ./configs/prod --format markdown

# json output
driftlens scan --baseline ./configs/stage --target ./configs/prod --format json

• critical: secret/auth/security keys changed or missing
• high: database/queue/host/endpoint style keys drift
• medium: feature/toggle/timeout/limit style keys drift
• low: everything else

• .env
• .yaml / .yml
• .json

See examples/ for sample stage/prod configs.