| name | craft-discipline |
| description | Use when completing a TDD phase or before committing — self-discipline checkpoints the software-engineer runs against their own output. Not a review contract. The reviewer verifies artifacts independently. |
Craft Discipline
Overview
10 self-discipline checkpoints for the software-engineer.
Run at every COMMIT & VERIFY phase, before committing.
What this skill is NOT: a review contract. The reviewer does not read
this skill. It audits artifacts independently through its own gates.
Checkpoints
Execute in order. Each checkpoint must pass before proceeding.
C1 — Acceptance test passes
dotnet test --filter "Category=Acceptance"
The acceptance test targeted by this iteration MUST pass. No [Skip].
C2 — All unit tests pass
dotnet test
Zero red tests. Zero ignored tests.
C3 — Build passes
dotnet build
All projects compile without warnings. Treat warnings as errors.
C4 — Static analysis passes
Verify that the linter/analyzer reports no new findings.
C5 — No skipped tests or placeholder assertions
No [Skip], [Ignore], #if false, disabling comments,
or placeholder assertions in test bodies
(assert.fail() / Assert.Fail() / Assert.True(false, ...) /
throw new NotImplementedException() / throw new Error('not implemented')).
Skipped tests and placeholder assertions are both theater —
they pass the compile gate but assert nothing.
C6 — No mocks in Domain/Application
Check UnitTest files:
- No
A.Fake<>(), Mock<>(), Substitute.For<>()
on a Domain or Application type.
- Mocks allowed ONLY on driven ports (repositories, gateways).
C7 — Business language verified
Test names, variables, and assertions use business vocabulary
(see the project's FR→EN lexicon). No test1, data, ProcessData.
C8 — 100% mutation score on business logic
S7 DETERMINISTIC TOOL BRIDGE — execute via terminal, not prose.
- Run Stryker via
runInTerminal:
dotnet stryker \
--project <Domain-or-Application.csproj> \
-tp <UnitTests.csproj> \
--since:main \
--break-at 100 \
--reporter json --reporter cleartext
- Parse output — extract survivors.
- For real survivors → write boundary test → re-run scoped.
- For equivalent mutants → document in code comment.
Zero surviving mutants in Domain and Application (equivalent mutants documented if accepted).
Load the mutation-testing skill for full workflow.
C9 — Conventional commit format
Format: type(scope): subject
Types: feat, fix, refactor, test, docs, chore.
C10 — Object Calisthenics on Domain
Verify the 9 rules (see references/object-calisthenics.md).
Applicable to Domain code only.
C11 — Parametrize Variations
Multiple input variants for the same behavior MUST be a single parameterized test
([Theory]/[InlineData] in .NET, @ParameterizedTest in Java, pytest.mark.parametrize in Python),
not duplicated test methods. One test method per behavior, one row per case.
When to Execute
| TDD Phase | Applicable Checkpoints |
|---|
| PREPARE | None |
| RED | None |
| SYNTHESIZE-GREEN | C3 only (build) |
| COMMIT & VERIFY | All (C1-C11) |
On Failure
- Red checkpoint → fix BEFORE committing.
- No exceptions, no
--ignore.
- After 3 attempts on the same checkpoint: revert to green + escalate.
References
