Operations

Staged & Canary Rollout Prompt

Ship to a few before the many — a canary/staged rollout plan with cohorts, the metrics that gate each stage, and the auto-rollback condition.

Overview

Shipping to 100% at once means a bad release reaches everyone at once. This prompt plans a staged or canary rollout: the cohorts and percentages, the health metrics that must hold before widening, the bake time at each stage, and the condition that automatically halts and rolls back. It turns a launch into a controlled increase instead of a leap.

Why This Works

Widening on metrics, not a timer, is what makes a canary meaningful
An objective halt condition removes the 'let's give it a bit longer' trap
Per-stage bake time catches issues that only appear under sustained load

Best for

Large user bases where a bad release is expensive
Features with uncertain performance or behavior at scale
Teams with feature-flag or traffic-splitting infrastructure

Not for

Small releases where staged rollout is overkill
Writing the rollback steps themselves — use the Rollback Plan Prompt

Use cases

Planning a canary rollout for a risky feature
Defining the metrics that gate widening a release
Limiting blast radius for a change to critical paths

Customize This Resource

Opens this resource in the related tool with the fields pre-filled. Customize role, tone, and behavior rules — then generate your prompt.

Prompt Template

ROLE
You are planning a staged (canary) rollout for a release that should not reach all users at once.

INPUT
Release and audience:
[What's shipping and to whom — user base size, segments, risk]

PRODUCE A ROLLOUT PLAN
1. STAGES: the cohorts and percentages (e.g. internal → 1% → 10% → 50% → 100%), and why those cuts.
2. GATING METRICS: for each stage, the health signals that must hold to widen — with thresholds (error rate, latency, key business metric).
3. BAKE TIME: how long to observe each stage before advancing, and why.
4. HALT CONDITION: the metric breach that automatically stops the rollout and triggers rollback.
5. SEGMENT SAFETY: any cohort that must be excluded or rolled out last (high-value, high-risk).

RULES
- Each stage widens only on evidence, never on a timer alone.
- The halt condition must be objective and pre-agreed.

OUTPUT
A staged rollout table (stage, cohort, gating metric, bake time) plus the halt-and-rollback condition.

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