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Mis à jour10 juin 2026 à 15:04

Project-specific review checklist for this repository (DDD + Event Sourcing + Axon Framework 5 invariants). Use when: (1) reviewing code changes, a diff, or a pull request in this repository, (2) user says 'review', 'code review', 'check this change', (3) any automated review action runs for this repo.

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MateuszNaKodach

MateuszNaKodach/HeroesOfDomainDrivenDesign.EventSourcing.DCB.Kotlin.Axon5.Spring

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Métiers associésSOC

Basé sur la classification professionnelle SOC

Analystes en assurance qualité des logiciels et testeursProfessions informatiques et mathématiques·SOC 15-1253

SKILL.md

readonly

name	code-review
description	Project-specific review checklist for this repository (DDD + Event Sourcing + Axon Framework 5 invariants). Use when: (1) reviewing code changes, a diff, or a pull request in this repository, (2) user says 'review', 'code review', 'check this change', (3) any automated review action runs for this repo.

Code Review Checklist

Project-specific invariants to verify when reviewing changes in this repository. These complement (not replace) general review practice: correctness, security, performance, and missing tests.

Event Sourcing invariants

Exhaustive when (event) in evolve() — must switch over the sealed interface with an explicit branch per subtype. No else -> branch, ever. No-op branches (is SomeEvent -> state) are required and intentional — they document a conscious "this event doesn't affect my state here" decision.
@EventSourcingHandler only on state-mutating events — branches that return state unchanged must NOT have a corresponding handler.
Every state-mutating branch has a test for that state transition.
decide() and evolve() stay pure — no side effects, no infrastructure dependencies in the Domain section.

Testing invariants

gameMetadata passed to every event() and command() call in tests — events without metadata break MetadataSequencingPolicy and cause processor failures with shared Testcontainers.
Integration tests use @HeroesAxonSpringBootTest, never bare @AxonSpringBootTest.
Prefer constructor injection over field injection, also in tests.

Domain modeling invariants

Value classes validate invariants in init blocks — domain concepts (Day, Gold, Quantity, …) must reject invalid values at construction.
All domain events implement HeroesEvent; module events extend their own sealed interface (e.g. DwellingEvent).
State classes are internal; commands are public.

Slice structure invariants

One slice per file (FeatureName.Slice.kt) with Domain / Application / Presentation sections.
Feature flags — every new slice needs @ConditionalOnProperty plus entries in application.yaml and Spring configuration metadata.
REST endpoints follow games/{gameId}/...; player ID via X-Player-ID header; game-scoped singletons use a fixed path segment, not a path variable.

Verification

Prefer the narrowest check: run the affected slice's test class (./mvnw test -Dtest=FeatureNameTest), not the whole suite.

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Subject matter expert on Dynamic Consistency Boundary (DCB) — a technique for enforcing consistency in event-driven systems without rigid transactional boundaries. Use when the user asks about DCB concepts, specification, patterns, examples, or compares DCB with traditional Event Sourcing approaches (aggregates, event streams, sagas). Covers topics including tags, projections, decision models, append conditions, queries, and the DCB-compliant Event Store interface. Implementation-agnostic — explains concepts without adhering to any specific library or language.

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name	code-review
description	Project-specific review checklist for this repository (DDD + Event Sourcing + Axon Framework 5 invariants). Use when: (1) reviewing code changes, a diff, or a pull request in this repository, (2) user says 'review', 'code review', 'check this change', (3) any automated review action runs for this repo.

Code Review Checklist

Project-specific invariants to verify when reviewing changes in this repository. These complement (not replace) general review practice: correctness, security, performance, and missing tests.

Event Sourcing invariants

Exhaustive when (event) in evolve() — must switch over the sealed interface with an explicit branch per subtype. No else -> branch, ever. No-op branches (is SomeEvent -> state) are required and intentional — they document a conscious "this event doesn't affect my state here" decision.
@EventSourcingHandler only on state-mutating events — branches that return state unchanged must NOT have a corresponding handler.
Every state-mutating branch has a test for that state transition.
decide() and evolve() stay pure — no side effects, no infrastructure dependencies in the Domain section.

Testing invariants

gameMetadata passed to every event() and command() call in tests — events without metadata break MetadataSequencingPolicy and cause processor failures with shared Testcontainers.
Integration tests use @HeroesAxonSpringBootTest, never bare @AxonSpringBootTest.
Prefer constructor injection over field injection, also in tests.

Domain modeling invariants

Value classes validate invariants in init blocks — domain concepts (Day, Gold, Quantity, …) must reject invalid values at construction.
All domain events implement HeroesEvent; module events extend their own sealed interface (e.g. DwellingEvent).
State classes are internal; commands are public.

Slice structure invariants

One slice per file (FeatureName.Slice.kt) with Domain / Application / Presentation sections.
Feature flags — every new slice needs @ConditionalOnProperty plus entries in application.yaml and Spring configuration metadata.
REST endpoints follow games/{gameId}/...; player ID via X-Player-ID header; game-scoped singletons use a fixed path segment, not a path variable.

Verification

Prefer the narrowest check: run the affected slice's test class (./mvnw test -Dtest=FeatureNameTest), not the whole suite.