Course overview

Real Rubric Examples: Customer Support, Code Generation, Summarization

Why concrete examples matter more than theory

Here's the thing, when you're building your first production rubric, the hardest part isn't knowing the components (dimensions, anchors, weights). It's translating 'what good looks like' into words someone else can score consistently. From what I've seen, most teams start with vague criteria like 'rate quality 1-5' and wonder why two evaluators never agree.

The fastest way to bridge that gap is to look at rubrics from real use cases, customer support, code generation, summarization, and see how experts carved abstract ideas like 'helpfulness' into concrete behavioral descriptions. Each domain evaluates different dimensions because each one has different failure modes and different business outcomes at stake.

We'll walk through three complete examples, paying attention to which dimensions they chose, how they anchored the score levels, and what they left out. (The things you don't measure matter as much as the things you do.)

Check your understanding

You're building a rubric for an AI-powered legal document summarizer used by attorneys. List 3–4 evaluation dimensions you'd measure, and briefly explain why each one matters for this specific use case.

Customer support rubric: Accuracy, completeness, escalation, tone

Let's start with a customer support chatbot rubric. The core dimensions here are: (1) Accuracy, does the response match help center docs and company policies? (2) Completeness, does it address all parts of the user's question, or leave gaps? (3) Escalation appropriateness, does it correctly hand off complex cases to humans with enough context? (4) Tone, is the language empathetic and professional?

Notice what's not in this rubric: creativity, wit, brevity for its own sake. Those might matter in marketing copy, but in support, users need correct answers and to feel heard. Hamel Husain advocates for binary scoring on dimensions like these, either the response correctly cites policy or it doesn't, either it escalates appropriately or it doesn't. That clarity drives higher inter-rater agreement.

Here's a behavioral anchor for Completeness, scored 3/5: 'Response addresses the main question but omits one secondary element explicitly asked by the user.' Compare that to a vague label like 'adequate', the first one gives two evaluators a shared reference point.

Dimensions reflect business outcomes

The dimensions you choose should map directly to what breaks trust or wastes time in your product. For support, inaccurate policy information erodes trust; incomplete answers generate follow-up tickets. For code, unreadable output slows down engineers. Choose dimensions that predict real downstream pain.

Check your understanding

A customer support chatbot responds to a user asking about return policy and shipping timelines. The bot correctly cites the 30-day return window but doesn't mention the 5-7 business day shipping estimate the user also asked about. Which dimension does this primarily fail on?

Code generation rubric: Correctness, efficiency, readability, weighted

Code generation rubrics look different because not all dimensions carry equal weight. From the research, a typical rubric might assign: Correctness 50% (code runs without errors and produces the desired output), Efficiency 30% (optimized for speed and resources), and Style/Readability 20% (well-commented, follows conventions).

Why the weighting? Because code that doesn't work is worthless, no matter how elegant. But once it works, efficiency and maintainability start to matter, especially in production systems where poor performance compounds over time.

Emily Reese and the Scale AI team showed that question-specific rubrics outperform generic ones. For a 'write a function to parse CSV files' prompt, your rubric should explicitly check: handles edge cases like empty rows, includes error handling for malformed input, uses standard library methods efficiently. That's way more useful than 'rate code quality 1-5.'

Correctness anchor for code

Score 1/5 (Fail): Code produces runtime errors or incorrect output for standard inputs. Score 3/5 (Pass): Code runs and produces correct output for typical cases but fails on one edge case. Score 5/5 (Excellent): Code handles all specified inputs and edge cases correctly with appropriate error handling.

Check your understanding

Summarization rubric: Consistency, coverage, conciseness, coherence

Text summarization rubrics center on four dimensions: (1) Consistency, no hallucinated facts that aren't in the source; (2) Coverage, includes all main points; (3) Conciseness, no unnecessary detail; (4) Coherence, flows logically without awkward transitions.

The trickiest dimension here is Consistency. It's tempting to score it on a 1-5 scale, but from what I've observed, binary works better: either the summary introduces information not in the source, or it doesn't. Hamel Husain's argument for binary evaluation applies especially well here, hallucinations are a bright line, not a spectrum.

Coverage and Conciseness create a natural tension, you want completeness without bloat. A good rubric makes that trade-off explicit. For example, a 3/5 on Coverage might be: 'Includes the two most important points but omits one supporting detail that changes the interpretation.' That's concrete enough that two raters will likely agree.

Don't conflate dimensions into a single score

I've seen teams create a single 'summary quality' score that tries to capture accuracy, coverage, and style all at once. The problem: a summary can be perfectly accurate but incomplete, or comprehensive but incoherent. Collapsing dimensions hides where the model is actually failing and makes it impossible to prioritize improvements.

Key takeaways

  • Effective rubrics choose dimensions based on the specific use case and business outcomes, customer support needs accuracy and escalation logic, code needs correctness and efficiency, summaries need consistency and coverage.
  • Behavioral anchors like 'omits one secondary element explicitly asked' beat vague labels like 'adequate', they give evaluators shared reference points and drive higher inter-rater agreement.
  • Weight dimensions by impact: correctness at 50% in code generation reflects that broken code is worthless, regardless of style.
  • Binary scoring (pass/fail) works especially well for bright-line criteria like 'no hallucinations' or 'escalates appropriately', it forces clearer thinking and produces more consistent results.
  • Task-specific rubrics that name exact failure modes (e.g., 'handles empty CSV rows') outperform generic 'rate quality 1-5' scales every time.

Your product check-in

Apply “Real Rubric Examples: Customer Support, Code Generation, Summarization” to a product or workflow you know. What would you try, what could go wrong, and what evidence would help you decide?

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