Carefully built plugins for Cowork and Claude Code. The plugin ecosystem is now shared — install in either environment and it shows up in both.
Install this marketplace via Settings > Plugins > Add marketplace using aliasunder/cowork-plugins.
| Plugin | Description |
|---|---|
| trip-planner | Plan a multi-week trip across 15+ sessions without losing context. Cross-validated research, budget tracking, printable daily cards, and a phase-based workflow from first idea to departure day. |
| obsidian-vault | Claude that works with Obsidian, not just in it. Detects your vault's conventions, understands how Dataview, Tasks, Kanban, Meta Bind, and Templater interact, and creates or edits notes that are connected, queryable, and safe. |
In the Claude desktop app:
- Open Settings > Plugins
- Click Add marketplace
- Enter
aliasunder/cowork-plugins - Select which plugins to enable
Each plugin has its own .claude-plugin/plugin.json, skills, and commands. Both Cowork and Claude Code discover them automatically.
Each plugin lives in its own top-level directory with this structure:
my-plugin/
.claude-plugin/plugin.json # Required — name, version, description
skills/my-skill/SKILL.md # Skill definition
commands/ # Slash commands (optional)
assets/ # Static files (optional)
See any existing plugin directory for a working example.