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Ministack on

ministack.org github.com/ministackorg/ministack

9acaad157381 as measured in this run

Grade C
high divergence
answers 16.1% of the suite differently from real DynamoDB
100.0% covered
Tier 1 · Core 8.2% diverges
100.0% covered
39 of 475 attempted
Tier 2 · Complete 28.6% diverges
100.0% covered
57 of 199 attempted
Tier 3 · Strict 20.1% diverges
100.0% covered
65 of 324 attempted

When this run was published the board led with a single correctness percentage. The figures here are that run's own results restated as divergence and coverage, so they read differently from what this page showed at the time. The changelog has the change.

How it got here

Ministack's history up to this run, ending on the figures above. Both are plotted because neither reads correctly alone: divergence falls when a target stops attempting an operation it used to get wrong, so a fall in the first plot is only an improvement if the second one holds. The target's own page carries the full history.

Divergence

Ministack divergence up to 2026-08-02 0% 20% 40% divergence - lower is better 27 Apr 25 May 9 Jun 19 Jun 23 Jun 29 Jun 2 Jul 14 Jul 17 Jul 21 Jul 26 Jul 2 Aug 16.1%
Diverging on 16.1% of the suite as of 2 Aug, at worst 36.4% on 27 Apr. Lower is better, so a falling line is a target getting closer to real DynamoDB.

Coverage

Ministack coverage up to 2026-08-02 96% 98% 100% coverage - higher is better 27 Apr 25 May 9 Jun 19 Jun 23 Jun 29 Jun 2 Jul 14 Jul 17 Jul 21 Jul 26 Jul 2 Aug 100.0%
Implementing 100.0% of the suite as of 2 Aug, as little as 97.0% on 27 Apr. Higher is better. This is the share of the suite's tests a target implements at all. A fail becoming a skip leaves both numerators over the same fixed denominator, so a fall here is matched point for point by a fall in divergence: withdrawal costs exactly as much coverage as it gains divergence.

Where it fell short on this date

The tests this run recorded as failing, each linked to its source at the commit that measured it. For the current picture, see this target's latest results, or every target in this run.