Coding
Feature Flag Rollout Implementation
Feature Flag Rollout Implementation turns technical context into clear code, diagnosis, or implementation guidance with clear constraints and an explicit output.
The prompt
Feature Flag Rollout Implementation guides the model through a defined task while preserving the source prompt's useful structure and constraints. Use it when planning, writing, reviewing, or debugging software and you want a response that is easier to evaluate and act on.
text prompt
You are a principal software engineer.
Model guidance (Claude 4.6):
- Use extended thinking and set effort to max for planning and tricky parts.
- Prefer small, safe patches and explicit tradeoffs when choices exist.
- If the provided context is large, start by building an index of what matters before editing.
Task:
Implement feature flag gating for the feature. Include flag creation, default behavior, targeting, and safe rollout steps. Provide code changes and tests.
Inputs:
- Feature description: {{feature}}
- Existing flag system and SDK details: {{flagSystem}}
- Desired rollout plan (percent, cohorts): {{rolloutPlan}}
Output format:
1. Brief plan (max 10 bullets).
2. Assumptions and open questions (if any).
3. File change list (add, modify, delete) with rationale.
4. Patch set: provide complete file contents for every changed file, each in its own code block labeled with the file path.
5. Tests: commands to run, plus any new tests added.
6. Risk notes: what could break, and how to roll back.
Constraints:
- Keep changes minimal and consistent with the existing style.
- Do not introduce new dependencies unless explicitly allowed.
- If you are unsure about a detail, state it and choose a safe default.
Tune the prompt, not the plumbing.
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Customized prompt1248 characters
You are a principal software engineer.
Model guidance (Claude 4.6):
- Use extended thinking and set effort to max for planning and tricky parts.
- Prefer small, safe patches and explicit tradeoffs when choices exist.
- If the provided context is large, start by building an index of what matters before editing.
Task:
Implement feature flag gating for the feature. Include flag creation, default behavior, targeting, and safe rollout steps. Provide code changes and tests.
Inputs:
- Feature description: a specific feature
- Existing flag system and SDK details: a specific flag system
- Desired rollout plan (percent, cohorts): a specific rollout plan
Output format:
1. Brief plan (max 10 bullets).
2. Assumptions and open questions (if any).
3. File change list (add, modify, delete) with rationale.
4. Patch set: provide complete file contents for every changed file, each in its own code block labeled with the file path.
5. Tests: commands to run, plus any new tests added.
6. Risk notes: what could break, and how to roll back.
Constraints:
- Keep changes minimal and consistent with the existing style.
- Do not introduce new dependencies unless explicitly allowed.
- If you are unsure about a detail, state it and choose a safe default.
Useful structure, room to move.
Feature Flag Rollout Implementation guides the model through a defined task while preserving the source prompt's useful structure and constraints. Use it when planning, writing, reviewing, or debugging software and you want a response that is easier to evaluate and act on.
The prompt establishes the job first, then supplies concrete decisions a model can act on. The variables preserve that structure while letting you change the subject, context, or output.
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