harness:canary

What problem does it solve?

harness:canary creates a structured pre-deployment deployment runbook that reduces the gap between “code verified” and “safely in production,” where incidents commonly originate.

Core Features & Use Cases

• Risk-based canary staging: Chooses a 2-to-5 stage traffic rollout strategy (with explicit percentages) based on data, security, blast radius, novelty, and reversibility signals.
• Rollback triggers and procedure: Defines automated rollback conditions tied to error and latency thresholds, plus a concrete rollback plan the team can execute under pressure.
• Observability and verification plan: Generates a checklist of dashboards, alerts, log queries, and post-deploy smoke and business-metric verification steps.

Quick Start

Tell the AI: "Generate a production canary deployment runbook for the changes in this branch, including risk score, canary stages, rollback triggers, and observability checks."