Claude Plugin Development

Claude Code Plugins that make the CLI work your way

Claude Code ships with a powerful set of built-in tools. But your workflows have specific requirements that the defaults do not cover: a slash command that runs your exact research sequence, a tool that calls your internal API, an agent template that embeds your brand standards without requiring a prompt every time. Claude Code Plugins extend the CLI at the right layer. We have built this infrastructure for our own 67-skill system and we build it for clients.

Build Your Plugin

Explore Claude Services

Custom Skills (plugin primitives) in production

OpenClaw agents built on plugin architecture

Slash commands used by our team daily

15+

Client workflows extended via plugins

What We Build

Five plugin types that extend Claude Code for real workflows.

Plugins are not cosmetic additions. They are the difference between a team that adapts to Claude Code and a Claude Code that adapts to the team.

Custom Slash Commands

Slash commands turn multi-step workflows into single invocations. Our team runs /create-content, /morning-briefing, /weekly-report, and /deliver as daily commands. Each one encodes a specific workflow: the right sequence of tools, the right context injection, the right output format. We design and build slash commands that match your team's most repeated workflows exactly.

Workflow-specific command design
Argument parsing and validation
Context injection at invocation
Output format specification

Custom Tool Definitions

Claude Code's built-in tools cover files, shell commands, and web search. Your team may need tools that are specific to your stack: a tool that queries your internal API, a tool that formats output for your CMS, a tool that validates against your schema definitions. We build custom tool definitions that slot into Claude's tool-use loop natively.

Internal API tool wrappers
CMS and data system integrations
Custom validation tools
Async tool patterns for long-running tasks

Agent Templates

An agent template is a pre-configured Claude Code session: specific CLAUDE.md context, a defined set of tools, a starting prompt structure, and hooks pre-loaded. When a team member runs a template, they get a Claude Code session that already knows the client, the task type, and the quality standards. No setup, no prompt engineering required per session.

Client-specific context pre-loading
Task-type tool configuration
Hook pre-attachment per template
Quality threshold enforcement built in

Skill Libraries

Skills are the modular, reusable capability units that follow Anthropic's agent pattern. Each Skill is a SKILL.md file with XML-structured instructions, a references directory for on-demand context, and optional scripts for validation. We build Skill libraries: 10-50 interconnected Skills covering a complete workflow domain, designed so they compose naturally within Claude's context window.

XML-structured Skill architecture
References directory for on-demand context
Validation script integration
Cross-Skill composition design

Workflow Automation Plugins

Plugins that wire Claude Code into your broader automation stack. A plugin that triggers an n8n workflow when a task completes. A plugin that posts to Slack with a session summary. A plugin that writes structured output to a database for reporting. These automation plugins turn Claude Code sessions into events that your systems can respond to.

n8n and Zapier workflow triggers
Slack and Teams notifications
Database write on task completion
Webhook-based external system integration

Team Collaboration Plugins

Plugins that make Claude Code a shared team asset rather than an individual tool. Shared session templates that every team member starts from. Plugins that log team activity to a shared audit trail. Plugins that enforce naming conventions and output formats across the team. When a plugin enforces consistency, consistency stops being a management problem.

Shared session template distribution
Team activity audit logging
Naming convention enforcement
Output format standardization

How We Build Plugins

Four stages from workflow audit to deployed plugin library.

Step 01

Workflow audit and plugin opportunity identification

We spend one session with your team mapping the Claude Code workflows you run most frequently. What steps do people repeat every session? Where do people forget to inject context? What manual steps happen after Claude finishes that could be automated? That audit produces a ranked list of plugin opportunities, ordered by time-to-value.

Step 02

Plugin architecture and interface design

Before building, we design the interface: how the plugin is invoked, what arguments it accepts, what context it injects, what tools it exposes, and what output it produces. For slash commands, we write the command specification. For Skill libraries, we map the Skill dependency graph. The interface design document is reviewed and approved before build starts.

Step 03

Build and integration testing with real workflows

We build against your actual workflow data. Custom tools get tested against your real API endpoints. Skill libraries get evaluated against your actual content and edge cases. Slash commands get tested with the full sequence of tool calls they trigger, not just the happy path. Plugins that fail on edge cases in production are worse than no plugin at all.

Step 04

Deployment, documentation, and team enablement

We deploy the plugins to your team's settings.json, write usage documentation for every command and tool, and run a live session with your team demonstrating each plugin in context. Your team can modify and extend the plugins without us. The goal is capability transfer, not ongoing dependency.

Our Plugin Stack in Practice

How 67 Skills and 8 slash commands replaced manual workflow management.

The Challenge

A 6-person agency managing 15 clients cannot rely on individual team members remembering the right process for every client and every task type. The wrong prompt, the wrong context, the wrong tool sequence. These are not theoretical risks. At scale, they happen. The question is whether they happen silently or whether the system catches them.

Our Solution

We built a plugin layer on top of Claude Code: 67 Skills that cover every workflow function (writing, editing, validation, schema, research, reporting), 8 slash commands that invoke the right Skill sequence for common tasks, and agent templates that pre-load client context for each of our 15 clients. A team member opens Claude Code, types /create-content mobilemodular "modular office buildings", and the plugin handles context loading, Skill sequencing, quality validation, and delivery notification. The team member handles judgment calls and client communication.

Results Achieved

Skills in production

Covering every client workflow function

Slash commands used daily

Across 6 team members, 15 clients

~90%

Session setup time per task

Reduction vs. manual prompt assembly

95%+

Quality gate pass rate

On first submission via plugin workflow

Who This Is For

Four teams that need Claude Code Plugins.

Engineering teams with repeated Claude Code workflows

The problem

Your engineers run similar Claude Code sessions every day. Same context setup, same tool sequence, same output format. That repetition is a plugin waiting to be built.

How we help

We map the repeated patterns and build slash commands and templates that eliminate the manual setup from every session.

Agencies managing multiple clients with Claude

The problem

Each client has different brand standards, different tools, different delivery requirements. Managing that context manually across sessions is error-prone and slow.

How we help

We build per-client agent templates that pre-load the right context, enforce the right quality standards, and use the right tool configuration without any session setup.

Product teams adding Claude to their internal tooling

The problem

You want Claude Code available to your whole team, but you need the experience to be consistent. Different team members using different prompts produces inconsistent outputs.

How we help

We build shared plugin libraries that standardize the Claude Code experience across your team without restricting individual flexibility.

Teams building on top of Claude Code for clients

The problem

You are an agency or consultancy that wants to offer Claude Code-powered services. You need a replicable delivery system, not one that depends on individual expertise.

How we help

We design and build the plugin architecture that makes your delivery system systematic and trainable. You own the system; we build the foundation.

FAQ

Claude Code Plugin development frequently asked questions

Claude Code Plugins extend the CLI with new capabilities: custom slash commands that invoke specific workflows, custom tool definitions that let Claude call your internal systems, agent templates that pre-configure sessions for specific use cases, and Skill files that give Claude modular, reusable expertise. Plugins live in the .claude directory and are configured via settings.json.

MCP servers give Claude access to external data sources and tools via the Model Context Protocol, typically for reading and writing to your systems. Claude Code Plugins extend the CLI interface itself. the commands available, the agent templates used, the Skills loaded. Think of MCP as the data layer and Plugins as the workflow layer. Most complete Claude Code deployments need both.

Skills are the primary plugin primitive in Anthropic's Claude Code architecture. A Skill is a SKILL.md file with XML-structured instructions that Claude loads when invoked. Slash commands trigger Skill sequences. Agent templates pre-load specific Skills. We use the terms interchangeably in context, though technically a Plugin encompasses any CLI extension, while a Skill is specifically the SKILL.md pattern.

Yes. SKILL.md files are plain text with XML structure. Slash commands are configuration entries in settings.json. Any team member comfortable with text editing can modify a Skill or add a new slash command. We write documentation for every plugin we build so the extension process is clear. You own the code from day one.

The right number depends on workflow complexity. A single-product engineering team might start with 5-10 Skills and 2-3 slash commands. A multi-client agency like ours has 67 Skills and 8 slash commands covering 15 different client contexts. We recommend starting with the 3-5 most repeated manual workflows and building from there.

Ready to Extend Claude Code?

Let's map your workflow and build your plugins.

A 60-minute workflow audit, a plugin design document, and a build. Your team goes from manually assembling Claude sessions to running structured, repeatable workflows from day one.

Workflow audit and opportunity mapping included
Integration tested against your real workflows
Documentation and team enablement session