Initial commit

.claude-plugin/plugin.json

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+{
+  "name": "coding-skills",
+  "description": "Collection of coding-related skills",
+  "version": "0.0.0-2025.11.28",
+  "author": {
+    "name": "Han",
+    "email": "ihanai1991@gmail.com"
+  },
+  "skills": [
+    "./skills/fundamental-coding-principles"
+  ]
+}

README.md

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+# coding-skills
+
+Collection of coding-related skills

plugin.lock.json

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skills/fundamental-coding-principles/SKILL.md

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+---
+name: fundamental-coding-principles
+description: Apply SOLID, DRY, KISS, YAGNI, and SSOT principles when writing, reviewing, or refactoring code to ensure maintainability and quality.
+---
+
+# Fundamental Coding Principles
+
+Apply this skill to keep code changes focused, testable, and maintainable.
+
+## Quick Checklist
+- Confirm each edit has a single purpose before coding.
+- Ruthlessly remove duplication or dead paths you touch.
+- Only add behavior backed by an explicit requirement.
+- Prefer simple, composable solutions over clever ones.
+- Keep truthy data and decisions in one authoritative place.
+
+## Principle Guardrails
+
+### SOLID
+- `S`: Validate the change impacts one reason to vary; split helpers if mixed concerns appear.
+- `O`: Extend behavior through new types or functions rather than rewriting stable code paths.
+- `L`: Ensure new subtype logic preserves caller expectations (inputs, return contracts, exceptions).
+- `I`: Create targeted interfaces; avoid forcing consumers to implement unused members.
+- `D`: Depend on abstractions or injected collaborators; eliminate hardwired globals where possible.
+
+### DRY
+- Scan for repeated logic, constants, or schemas; consolidate into shared utilities before finishing.
+- Prefer extracting reusable modules over copy-pasting even inside the same file.
+
+### KISS
+- Trim optional branches, flags, and polymorphism unless they solve today’s requirement.
+- Keep functions short and state minimal; decompose complex flows into readable steps.
+
+### YAGNI
+- Challenge every new feature, parameter, or hook: is there a verified need right now?
+- Defer premature abstractions until duplication or clear requirements emerge.
+
+### SSOT
+- Update or create the canonical definition (config, schema, doc) when data models change.
+- Remove divergent caches or mirrors unless you enforce sync in the same change.
+
+## Reference Playbooks
+- [Splunk: "SOLID Design Principles – Hands-On Examples"](https://www.splunk.com/en_us/blog/learn/solid-design-principle.html) – success/failure code walkthroughs for each letter.
+- [PullRequest.com: "7 Clean Coding Principles"](https://www.pullrequest.com/blog/7-clean-coding-principles/) – DRY-focused review prompts.
+- [MIT 6.031: Code Review Guide](https://web.mit.edu/6.031/www/fa20/classes/03-code-review/) – DRY and simplification questions to ask.
+- [Baeldung: KISS Software Design Principle](https://www.baeldung.com/cs/kiss-software-design-principle) – tactics for keeping solutions lightweight.
+- [TechTarget: YAGNI Explainer](https://www.techtarget.com/whatis/definition/You-arent-gonna-need-it) – decision tests and risk scenarios.
+- [Atlassian Workstream: Building an SSOT](https://www.atlassian.com/work-management/knowledge-sharing/documentation/building-a-single-source-of-truth-ssot-for-your-team) – practices for maintaining canonical sources.