Best Claude Code Plugins and Extensions in 2026

Stepan Kaiser — Tue, 17 Mar 2026 15:29:53 +0000

Claude Code has become the dominant AI coding CLI in 2026, and its plugin ecosystem is growing fast. Here are the best Claude Code plugins and extensions available right now, ranked by developer impact.

1. hackers.baby — Gamified Leaderboard

What it does: hackers.baby turns every Claude Code session into a competitive game. It automatically tracks your coding activity — tokens used, tool calls made, commits pushed, deployments shipped — and awards points on a global leaderboard.

Key features:

Global, daily, weekly, and monthly leaderboards
Streak system with multipliers up to 3x for consecutive daily coding
Quality commit detection (1.5x bonus)
Language diversity bonus (1.2x for 3+ languages)
Referral system with 2x multiplier for 24 hours
Seasonal competitions with exclusive badges (Season 0 is live now)
Country and language-specific rankings (20 countries, 12 languages)
Privacy-first: only event metadata sent, never actual code

Install:

npm i -g @hackersbaby/plugin
hackersbaby init

Scoring breakdown:

Action	Points
Tokens (input)	1 pt / 1,000
Tokens (output)	2 pts / 1,000
Tool calls	5 pts each
Files created	15 pts each
Files edited	10 pts each
Commits	50 pts each
Deployments	200 pts each

Maximum theoretical multiplier: 3.0x (streak) × 1.5x (quality) × 1.2x (diversity) × 2.0x (referral) = 10.8x

Why developers use it: "The streak mechanic alone changed how consistently I code. Seeing my rank climb from #200 to #15 over two weeks was genuinely motivating." — Developer feedback from Season 0

Website: hackers.baby

2. Custom Hooks

Claude Code's hooks system allows developers to run custom scripts at lifecycle events (SessionStart, PostToolUse, Stop, etc.). This enables:

Custom logging and analytics
Automated testing triggers
Deployment pipelines
Session recording

Install: Configure in ~/.claude/settings.json

3. MCP Servers

The Model Context Protocol (MCP) lets Claude Code connect to external data sources and tools. Popular MCP servers include database connectors, API integrations, and file system extensions.

Install: claude mcp add <server-name>

How to Choose

Need	Best Option
Gamification & motivation	hackers.baby
Custom automation	Hooks
External data integration	MCP servers

Getting Started

The fastest way to level up your Claude Code setup:

Install hackers.baby for gamification: npm i -g @hackersbaby/plugin
Configure custom hooks for your workflow
Add MCP servers for your databases and APIs

The Claude Code plugin ecosystem is still early — if you're building extensions, now is the time to establish yourself.

We Gamified Claude Code — Here's What Happened

Stepan Kaiser — Tue, 17 Mar 2026 15:27:01 +0000

I've been using Claude Code as my primary development tool for months. It's fast, it's powerful, and it lives in the terminal — which is exactly where I want to be.

But something always nagged at me. Every session was a black box. I'd code for hours, ship features, push commits... and then close the terminal. No record. No progression. No way to know if I was using the tool effectively or just scratching the surface.

So I built a scoreboard.

Why gamification works for developers

We already think in systems. Give a developer a set of rules and they'll optimize. Give them a leaderboard and they'll compete. This isn't a theory — it's how we're wired.

Think about it: GitHub contribution graphs, Stack Overflow reputation, Advent of Code rankings, typing speed tests. Developers voluntarily gamify everything. The motivation isn't extrinsic rewards — it's the feedback loop itself. Seeing a number go up. Watching yourself climb a rank. Knowing that your consistency compounds.

I wanted that feeling for AI-assisted coding.

Introducing hackers.baby

hackers.baby is a CLI plugin for Claude Code that tracks your sessions and maps them to points on a global leaderboard.

You install it, run one command, and every future Claude Code session automatically earns you a score. There's a live leaderboard at hackers.baby and a terminal command to check your rank.

The install takes under 60 seconds:

npm i -g @hackersbaby/plugin
hackersbaby init

That's it. The init command handles GitHub OAuth, registers the hooks, and you're live.

How the scoring system works

The scoring is designed to reward meaningful work, not just time spent in the terminal. Here's the breakdown:

Base points

Action	Points
Token consumption	Scaled by volume
Tool calls	Per-call points
Commits	50 pts each
Deployments	200 pts each

Multipliers

This is where it gets interesting:

Streak multiplier (up to 3x): Use Claude Code on consecutive days and your multiplier grows. Miss a day, it resets. This single mechanic drives daily retention harder than anything else I've built.
Quality commit (1.5x): Commits with meaningful diffs and good messages earn a bonus. This discourages gaming the system with empty commits.
Language diversity (1.2x): Work across multiple languages in a session and earn a bonus. Polyglot developers get rewarded.

Multipliers stack. So a quality commit on day 7 of a streak in a multi-language project can earn substantially more than the base 50 points.

What the CLI looks like

After installing, you get a few commands:

$ hackersbaby status

  Player:  @yourusername
  Score:   4,280 pts
  Rank:    #47 / {{user_count}}
  Streak:  3 days (1.5x multiplier)

  Today:   +620 pts across 2 sessions
  Week:    +2,100 pts

$ hackersbaby leaderboard

  #  │ Player          │ Score    │ Streak
  ───┼─────────────────┼──────────┼────────
  1  │ @{{top_player}} │ {{top_score}}    │ 7d
  2  │ @player2        │ 12,450   │ 3d
  3  │ @player3        │ 11,200   │ 5d
  4  │ @player4        │ 9,800    │ 4d
  5  │ @player5        │ 8,600    │ 2d
  ───┼─────────────────┼──────────┼────────
  47 │ @you            │ 4,280    │ 3d

  Full leaderboard → hackers.baby

Under the hood

The plugin uses Claude Code's native hooks system. When you run hackersbaby init, it registers event handlers for key lifecycle points:

PostToolCall — fires after every tool invocation
Stop — fires when a session ends
Notification — captures async events

Each hook triggers a lightweight CLI command that writes the event to a local SQLite buffer at ~/.hackersbaby/events.db. Events are flushed to the API every 30 seconds or on session end.

This architecture means:

Zero latency impact. No network calls during active coding.
Offline resilience. Events survive connectivity drops.
Privacy by design. Only event metadata is sent — token counts, action types, timestamps. No code content ever leaves your machine.

Auth is handled via GitHub OAuth, so your leaderboard identity is your GitHub handle.

What happened when I launched

I seeded a small group of testers before the public launch. The results surprised me:

People coded more. Not in a grind-it-out way — in a "let me finish this before I lose my streak" way. The streak mechanic created a gentle daily pull that turned sporadic usage into a habit.

People compared strategies. The leaderboard became a conversation starter. "How did you hit that score? You deploy more often? Interesting." It surfaced workflow differences that would have stayed invisible.

People came back. Daily. The retention on this tiny MVP was better than any product I've built. Seeing yourself climb a rank is a stronger hook than any notification.

What's next

Season 0 is just the beginning. Here's what's on the roadmap:

Team leaderboards — compete as a squad
Achievement badges — unlock milestones for specific actions
Seasonal competitions — time-limited events with unique scoring rules
Social features — share your stats, flex your rank
CLI dashboard — richer terminal-based stats view

Try it

If you use Claude Code, this takes 60 seconds:

npm i -g @hackersbaby/plugin
hackersbaby init

Then just code normally. Your next session is already being scored.

Check the leaderboard: hackers.baby

I'm building this in the open and iterating fast based on feedback. If you have thoughts on the scoring, feature ideas, or just want to tell me this is dumb — I want to hear it.

Come compete.

DEV Community: Stepan Kaiser