Plan shadow traffic before cutover

Prompt that plans shadow traffic before cutover without double side effects. Paste it into an AI tool of your choice, which then plans shadow traffic before cutover.

Topic: Apps & prototypes
Type: Prompt
Level: Intermediate
Time: about 15 min

Results depend on the tool, the model and what you enter.

Result preview

Example: written by our editors, not real AI output.

New search ranker vs live Copy: proxy fork, writes to sink Sample: 5 % → 20 % Compare: p95 latency, empty-result rate, add-to-cart proxy Abort: error +2 pp or p95 +30 % Go/no-go checklist attached

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ChangeWhat is new?

TrafficHow do you copy?

CompareWhat decides?

Your prompt

Help me plan shadow traffic before a cutover.
Change: [Change]
Traffic: [Traffic]
Compare: [Compare]
Steps: 1. Read what the new version must match and which metrics prove it. 2. Define how requests are copied without double side effects. 3. Separate read-only shadow from write-shadow with fakes or sinks. 4. Set sample rate, duration and abort thresholds. 5. Describe privacy and PII handling in the copy path. 6. Write a go or no-go checklist for cutover.
Output: shadow design, sample plan, metrics, abort rules and cutover checklist.

Take particular care to copy traffic without live side effects and decide with clear abort rules.

Before you answer, check: Are all instructions met? If key information is missing or a placeholder in square brackets is still in the text, ask instead of guessing. Mark assumptions as assumptions.

This is an instruction for an AI, not the result itself.

Where this prompt works

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How to use it

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Copy the finished prompt into an AI tool of your choice.
Paste architecture sketch, sensitive fields and success metrics, without production payloads.

Why does this work?

If the shadow path still writes to the live store, you are not shadowing – you are double-booking. Sink writes or use fakes.

Tips

Start at a low sample rate and raise only after error and latency look calm.

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Plan shadow traffic before cutover

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