Scores test files 1 to 5 on six design axes (AAA phase separation, single-responsibility, naming, fixture coupling, magic literals, setup time) using explicit per-level anchors that settle what separates a 2 from a 4, then turns the scores into growth-framed feedback and a per-author trend report; the per-PR and per-author rollup examples and trend-reporting conventions live in references/. Owns the scoring and the write-up only: the conventions being scored live in a separate conventions catalog such as `test-code-conventions`, and block-or-approve gating belongs to an adversarial review. Use when a test diff needs a graded coaching read rather than a merge verdict: onboarding a new engineer, a team deliberately ramping up test discipline, or a quarterly per-author trend where the output is a conversation, not a gate.
75
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Deep reference for the test-design-scorecard SKILL.md. Consult after scoring individual files, when aggregating those scores into a per-PR summary or a per-author trend line. The per-file scoring and feedback rules stay in the SKILL; this is the rollup layer.
## Test design scorecard - PR #1234
**Files scored:** 3
**Average:** 3.8 / 5
**Trend:** up from 3.5 across the previous 3 PRs.
| File | Score | Standout | Top growth axis |
|---|---:|---|---|
| `cart.spec.ts` | 4.2 | Phase separation, single-responsibility | Naming |
| `checkout.spec.ts` | 3.5 | Inline fixtures | Magic literals |
| `payment.spec.ts` | 3.7 | Setup under 1 s | Single-responsibility (3 targets in one test) |
### Pick one focus for this sprint
1. **Naming:** add the scenario element to every new test name.
2. **Single-responsibility:** split tests with 3 or more assertion targets.
3. **Magic literals:** name the values that recur across files.
One focus beats three. Pick the one you would enjoy doing.
### This is not a gate
This PR ships on its own merits. The growth items are for the next one.## Test design trend - Q2
| Period | Avg score | PRs scored | Axes |
|---|---:|---:|---:|
| 2026-W18 | 3.5 | 4 | 5 |
| 2026-W19 | 3.7 | 3 | 5 |
| 2026-W20 | 3.8 | 5 | 6 |
| 2026-W21 | 3.9 | 4 | 6 |
**Direction:** up, roughly +0.1 per sprint.
**Most improved:** AAA phase separation, 3.0 to 4.5.
**Unchanged:** setup time, unscored in W18-W19 (no timings captured).Two conventions keep the trend honest, both chosen here rather than sourced:
Trends need consistent adoption. Scored sporadically, the line tracks which PRs happened to get reviewed, not how anyone's testing changed. Keep the same scorer across a trend line wherever possible, since a one-point difference between reviewers is inside the noise floor.