Prompt Scorecard Calculator

Build better prompts with a structured scoring workflow. Set weights, score criteria, and capture notes. Download CSV or PDF, then iterate with confidence daily.

Score your prompt criteria

Use 0–5 for each criterion, then assign weights that reflect importance.
Tip: Keep weights totaling ~100% for easier reading.

Optional advanced workflow: score the same prompt across multiple model versions, then export each run to compare stability.

Example data table

Criterion Weight (%) Score (0–5) Weighted Points Example Note
Clarity 15.0 4.0 60.0 Goal and task are unambiguous.
Specificity 12.0 4.0 48.0 Precise details reduce guessing.
Context 12.0 3.0 36.0 Background and assumptions are provided.
Constraints 14.0 3.0 42.0 Limits, exclusions, and rules are explicit.
Output Format 12.0 4.0 48.0 Structure and fields are defined.
Examples/Evaluation 10.0 3.0 30.0 Includes examples or success criteria.
Safety/Compliance 15.0 4.0 60.0 Avoids unsafe or disallowed requests.
Tone/Style 10.0 4.0 40.0 Voice and audience are stated.
Weighted Points = Weight × Score. Your overall score normalizes by total weight.

Formula used

Weighted average score (0–5)
Let each criterion i have weight wᵢ and score sᵢ (0–5).
Score₅ = ( Σ (wᵢ × sᵢ) ) / ( Σ wᵢ )
Weights can be any scale; the calculator normalizes by total weight.
Normalized score (0–100)
Convert the 0–5 score into a percent-style score.
Score₁₀₀ = (Score₅ / 5) × 100
Improvement Impact = wᵢ × (5 − sᵢ), used to rank targets.

How to use this calculator

  1. List criteria that matter for your use case (quality, safety, format, etc.).
  2. Assign weights (percent style recommended) reflecting business importance.
  3. Score each criterion from 0 to 5 based on evidence from outputs.
  4. Submit to compute weighted scores and identify top improvement targets.
  5. Export CSV or PDF to compare prompt iterations across versions.
Practical tip: keep a short “test set” of inputs you always run to score prompts consistently.

Rubric-based prompt governance

A prompt scorecard turns qualitative feedback into repeatable governance. By scoring clarity, constraints, and formatting, teams can compare drafts without relying on subjective impressions. Use the Notes field to capture observable behaviors, such as missing fields, hallucinated assumptions, or policy-sensitive phrasing. Over time, the scorecard becomes a lightweight audit trail that explains why a prompt changed and what risk it reduced. It also helps onboard new reviewers faster with shared language.

Designing meaningful weights

Weights express business priorities. For customer support, safety and tone often carry higher weight; for data extraction, output format and specificity matter more. Keep weights near 100% to improve interpretability, but any scale works because the calculator normalizes by total weight. Revisit weights quarterly: when product requirements change, the scorecard should shift with them. Avoid splitting importance evenly unless every criterion truly drives outcomes.

Calibrating scores with a test set

Consistency improves when you score against the same test set of inputs. Build a small suite that covers typical queries, edge cases, and adversarial attempts. Run the prompt, capture outputs, and score each criterion from 0–5 using evidence. If reviewers disagree, write short scoring rules, like “5 means all required fields appear” or “2 means constraints are frequently ignored.” Store examples of a 5, 3, and 1 to anchor judgement.

Tracking reliability and variance

One run can be misleading. Repeat the test set across multiple model versions or temperature settings and export each run. Look for variance: a prompt with a high average but large spread may be brittle. Use the Top improvement targets list to fix criteria with the largest weighted impact, then re-run and confirm variance drops along with failure rates. Stable prompts reduce support tickets and downstream rework.

Operational reporting and iteration

Exported CSV reports support dashboards, sprint reviews, and regression checks. Compare current scores with the last approved baseline to spot regressions early. When a score falls, use the Notes to propose a concrete edit, such as adding structured fields, stricter constraints, or examples. Repeat until scores stabilize and the prompt behaves predictably under load. Treat the scorecard as a living spec, updated whenever user traffic reveals new patterns.

FAQs

What score range indicates a reusable prompt?

Scores above 80/100 usually signal a reusable structure. Confirm by running a small test set and checking variance. If results stay stable across runs, promote the prompt to a shared template.

How should I choose criteria for my project?

Start with clarity, context, constraints, and output format. Add domain criteria such as grounding, tool usage, privacy, or citation rules. Remove anything you cannot observe consistently in outputs.

Do weights need to sum to 100 percent?

No. The calculator normalizes by total weight, so any scale works. Keeping totals near 100% simply makes it easier for humans to interpret importance at a glance.

Why does the tool show top improvement targets?

Targets are ranked by weighted impact: weight × (5 − score). This highlights where a small improvement can raise the overall score most, helping you prioritize edits efficiently.

How often should we rescore a prompt?

Rescore after meaningful edits, model changes, or new user behaviors. Many teams score weekly during development, then monthly once stable, with quick spot checks after incidents or regressions.

What is a practical way to reduce variance?

Add explicit constraints, define the output schema, and include one good example. Then rerun the same test set at least twice. If failures persist, split the task into smaller steps or add validation rules.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.