OpenAgentSkill Registry Manifest
Skill: implementation-design-patterns
Slug: pproenca-implementation-design-patterns
Category: design-creative
Description: Implementation guide for the 22 Gang of Four design patterns in TypeScript, distilled from refactoring.guru. Use this skill when writing, refactoring, or reviewing TypeScript that exhibits a pattern-shaped problem — class-explosion from inheritance, conditionals switching on type, tight coupling to concrete classes, tree-shaped models, runtime algorithm selection, undo/redo, snapshot-and-restore, state-dependent behavior, subscriber notification, or hiding subsystem complexity. Each pattern entry includes intent, problem, solution, applicability (when to use AND when NOT to use), a runnable TypeScript example, implementation steps, pros/cons, and relations to sibling patterns. Trigger even when no pattern is named — cues like "class getting unwieldy," "giant switch," "swap implementations at runtime," "combinatorial subclasses," "need undo," or "traverse a tree" are pattern-shaped. Covers all 5 Creational, 7 Structural, and 10 Behavioral GoF patterns.

Agent fit:
- Decision: 69/100 Prototype first
- Primary fit: Browser automation
- Role: Fallback candidate

Supply profile:
- Track: Design and creative production
- Scenario: Design and creative
- Applicable agents: Claude Code, CLI, Codex, Cursor
- Maintenance: 21d since push
- Risk: Risky

Trust:
- Trust score: 74/100 Strong shortlist
- Audit: 79/100 Risky

Attribution:
- Status: Registry indexed
- Source: github candidate review
- Creator: pproenca
- Claim URL: https://www.openagentskill.com/skills/pproenca-implementation-design-patterns#claim-this-skill

Install:
npx skills add pproenca/dot-skills --skill implementation-design-patterns

URLs:
- Web: https://www.openagentskill.com/skills/pproenca-implementation-design-patterns
- API: https://www.openagentskill.com/api/agent/skills/pproenca-implementation-design-patterns
- Install API: https://www.openagentskill.com/api/skills/pproenca-implementation-design-patterns/install
- Repository: https://github.com/pproenca/dot-skills/tree/master/skills/.curated/implementation-design-patterns