# Plugin Implementation Deprecated > Deprecated legacy skill retained for backward compatibility; use the new focused extension skills instead. Use when this capability is needed. - Skill: `tomevault-io/plugin-implementation-deprecated` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/plugin-implementation-deprecated` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/plugin-implementation-deprecated/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/plugin-implementation-deprecated --- # Deprecated: Plugin Implementation This skill is deprecated and replaced by focused skills: - `../implement-claude-extensions/SKILL.md` (umbrella routing) - `../implement-hooks/SKILL.md` - `../implement-agent-skills/SKILL.md` - `../implement-sub-agents/SKILL.md` - `../implement-agent-teams/SKILL.md` - `../implement-plugin/SKILL.md` Use `plugin-verification` for integrated validation across all components. ## Legacy References Legacy files remain in this directory for compatibility only. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/yu-iskw) — claim your Tome and manage your conversions.