Software Craftsmanship Skill 🛠️✨

Clean Code. Robust Architecture. No Test Slop.

A foundational skill for high-quality software engineering. Use this skill when writing code, structuring projects, or conducting code reviews.

Usage

# Read the core principles
read skills/software-craftsmanship/SKILL.md

Rules of Engagement 🛡️

1. NO_TEST_SLOP 🚫🧪

• Definition: Tests that verify only UI structure (snapshots), boilerplate, or mocked behavior without testing business logic.
• Rule: Only write tests for Core Logic (State Management, Data Transformation, Protocols).
• Why: Avoid bloated codebases, fragile tests, and maintenance nightmares.
• Action: If you see a test that doesn't verify a critical path -> Delete/Refactor it.

2. FORWARD_MOMENTUM 🚀

• Definition: Every interaction must yield a tangible artifact or decision.
• Rule: Do not loop in discussion. Create a file, run a command, or make a decision.
• Why: Action > Analysis Paralysis.
• Action: If stuck -> Execute forward-momentum skill logic.

3. OWN_YOUR_TOOLS 🔧

• Definition: Relying on magic or external services for critical build steps.
• Rule: Write your own scripts (e.g., generate_proto.sh) for reproducibility.
• Why: Robustness, independence, and clarity.
• Action: If a task is complex -> Script it.

4. GIT_ETIQUETTE 🔀🐙

• Definition: Professional collaboration via Git and GitHub.
• Rule 1 (Branches): Never push directly to main. Use feat/<name> or fix/<name>.
• Rule 2 (PR Structure): Explain the Why, What, and Outcome.
  • Context: Why is this necessary?
  • Changes: What implementation details matter?
  • Impact: What is the result?
  • A PR without this context is unacceptable.
• Rule 3 (Review): Self-review your diff before requesting review. Don't waste the reviewer's time with typos or debug logs.
• Rule 4 (PR Metadata): Always fill PR metadata fields where applicable.
  • --reviewer: Assign the responsible reviewer (default: lx-0 for Yesterday repos).
  • --assignee: Assign the author (@me) so ownership is clear.
  • --label: Tag with e.g. enhancement, bug, documentation, skill -- helps triage.
  • --milestone: Attach to a milestone if one exists for the target release/sprint.
  • --project: Link to the relevant GitHub Project board if configured.
  • A PR without reviewer assignment is invisible. Don't let work rot in the queue.
• Why: Context > Code. A diff shows what changed; the PR description explains why. Metadata ensures the right people are notified and the work is properly tracked.
• Action: git checkout -b feat/<name> → commit → gh pr create --body "..." --reviewer lx-0 --assignee @me --label enhancement.

5. CLEAN_CODE 🧹 -- CCD Wertesystem

Das Clean Code Developer (CCD) Wertesystem strukturiert Qualitätsprinzipien in 5 aufeinander aufbauende Grade (Rot → Orange → Gelb → Grün → Blau). Jeder Grad vertieft Prinzipien und Praktiken:

• 🔴 Rot: DRY, KISS, IOSP, VCS, täglich reflektieren
• 🟠 Orange: SRP, SoC, SLA, Integrationstests, Reviews
• 🟡 Gelb: SOLID (ISP, DIP, LSP, OCP), Unit Tests, Mocks
• 🟢 Grün: CI, Statische Analyse, IoC Container
• 🔵 Blau: CD, TDD, iterative Entwicklung, Architektur

Vollständige Übersicht: references/ccd-principles.md

• Definition: Code is for humans to read, machines to execute.
• Rule: Use meaningful names, short functions, and clear separation of concerns.
• Why: Maintainability.
• Action: Refactor ruthlessly.

Instructions 📝

1. When starting a new feature: Read these rules first.
2. During implementation: Check your work against these principles.
3. During review: Flag violations explicitly (e.g., "Violation: NO_TEST_SLOP detected in test/widget_test.dart").

---

Authored by ManniTheRaccoon. 🦝