developer-essentials — Claude Code plugin: what it does
A bundle of developer skills for everyday work: Git, SQL, code review, E2E tests, debugging and monorepos.
/plugin marketplace add wshobson/agents
/plugin install developer-essentials@claude-code-workflowsWhat developer-essentials does
developer-essentials by Seth Hobson packs the routine parts of coding into one plugin: Git workflows, SQL optimization, error handling, code review, E2E testing, authentication, debugging and monorepo management. It installs into Claude from the wshobson/agents marketplace.
Two commands get it running: add the marketplace, then install the plugin. Once it is in, the skills are available to the agent during a session — ask it to look at a slow query or walk a diff before you merge.
The plugin ships under MIT, so forking and trimming it for your own repo is fair game. The author lists Claude, Codex and Cursor as supported, which is worth checking against your own setup before you rely on it.
What it helps with
- find out why a SQL query is slow and rewrite it
- review a diff before merging
- set up an end-to-end test for a new flow
- debug a failure that only shows up sometimes
- sort tasks across packages in a monorepo
Example prompts for the agent
- look at this SQL query and suggest how to speed it up
- review this diff before I merge
- help me debug this failing test in the module
How to install developer-essentials
Plugin marketplace
/plugin marketplace add wshobson/agents/plugin install developer-essentials@claude-code-workflowsStep by step, with commands for each platform: Claude Code plugins: marketplaces, installing, and building your own
Questions about developer-essentials
How do I install developer-essentials in Claude?
Add the marketplace first: /plugin marketplace add wshobson/agents, then install the plugin: /plugin install developer-essentials@claude-code-workflows.
What does developer-essentials do?
It bundles skills for common developer tasks: Git workflows, SQL optimization, error handling, code review, E2E testing, authentication, debugging and monorepo management.
Which platforms does the plugin support?
The author lists Claude, Codex and Cursor. The marketplace install steps are documented for Claude.
Source text
developer-essentials · MIT
Essential developer skills including Git workflows, SQL optimization, error handling, code review, E2E testing, authentication, debugging, and monorepo management
© Seth Hobson · MIT · wshobson/agents
