AI coding add-ons, by the job you're doing.
A curated shelf of plugins & MCP servers for AI dev tools — sorted by what you're trying to get done, not by which company made them.
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Power-ups & frameworks
Broad, popular add-ons that reshape how you work.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| Superpowers~752k | The ecosystem's most-loved plugin — reframes Claude Code as a small dev team: brainstorming, spec-driven development, systematic debugging, red/green TDD, and review. | FREE | $ /plugin marketplace add obra/superpowers |
| Frontend Design~829k | Anthropic's own plugin for building production-grade UI — turns rough ideas into polished, real interfaces, not throwaway mockups. | FREE | $ /plugin install frontend-design |
| feature-dev~89k | A structured feature-development workflow — plan, build, verify — and one of the most-installed plugins in the official directory. | FREE | $ /plugin install feature-dev |
| Claude Mem | Long-term memory for Claude Code — captures and compresses your work across sessions, then reinjects the relevant context automatically next time. | FREE | setup on the linked page ↗ |
01
Debug & fix
Find why it broke, faster.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| rootcauseOURS | Paste a stack trace, get the real root cause traced through your actual code — not a generic explanation of the exception. | FREE | $ /plugin marketplace add plumbgoat/rootcause |
| Sentry | Pull real production errors and issues into your editor so the agent debugs against what actually happened. | FREEMIUM | $ claude mcp add sentry |
| greptile | AI search and understanding across a large codebase — ask where something lives and why. | PAID | $ /plugin install greptile |
| Chrome DevTools | Inspect and control a live Chrome to debug web apps — console, network, and DOM from the agent. | FREE | $ claude mcp add chrome-devtools |
02
Test
Cover the code you just wrote.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| testradarOURS | Finds the code you changed that has no test, then writes the missing tests in your project's own framework and style. | FREE | $ /plugin marketplace add plumbgoat/testradar |
| Playwright | Drive a real browser for end-to-end tests — click, type, and assert across pages under agent control. | FREE | $ claude mcp add playwright |
| Stagehand | AI-native browser automation — navigate, act, and extract data using natural language instead of brittle selectors. | FREEMIUM | $ claude mcp add --transport http browserbase https://mcp.browserbase.com/mcp?browserbaseApiKey=<key> |
| Agent QA | Write browser and mobile test flows in plain language, then get reviewable evidence from every run. Bring your own model; source-available (FSL), needs Node 24+. | FREE | $ npx agent-qa mcp |
03
Ship & review
Get it merged without breaking things.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| code-review | Automated pull-request review — flags correctness, security, and style issues before a human looks. | FREE | $ /plugin install code-review |
| CodeRabbit | An AI review partner that comments on your PRs with context-aware suggestions. | FREEMIUM | $ /plugin install coderabbit |
| GitHub | Manage repos, pull requests, and issues directly — open PRs, read reviews, and link work. | FREE | $ claude mcp add github |
| GitLab | The GitLab side of the same workflow — merge requests, pipelines, and issues from the editor. | FREE | $ claude mcp add gitlab |
| commit-commands | Git commit workflow helpers — stage, message, and structure commits without leaving the chat. | FREE | $ /plugin install commit-commands |
| Graphite | Breaks a large AI-generated diff into small, stacked pull requests that are actually easy to review — via Graphite's GT MCP. | FREEMIUM | $ claude mcp add graphite |
04
Incidents & ops
When it's on fire, and after.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| postmortemOURS | Turns raw incident logs, traces, and chat into a complete blameless postmortem — timeline, root cause, action items. | FREE | $ /plugin marketplace add plumbgoat/postmortem |
| Datadog | Query logs, metrics, and traces so the agent reasons over what your monitoring actually saw. | PAID | $ claude mcp add datadog |
| Grafana | Read dashboards and manage alerting — pull the panel that matters into the conversation. | FREEMIUM | $ claude mcp add grafana |
| PagerDuty | Incident context and correlation — who's on call, what's firing, and what's related. | PAID | $ claude mcp add pagerduty |
| PostHog | Product analytics and feature flags — ask why a metric moved and get the data behind it. | FREEMIUM | $ claude mcp add posthog |
| Honeycomb | Observability and SLOs — trace a slow request through your services to the span that hurt. | FREEMIUM | $ claude mcp add honeycomb |
05
Plan & track
Know where the work stands.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| sprint-reportOURS | Your Jira sprint's real status rendered in-session — done, in-flight, stuck, and scope creep. Works on any Jira. | FREE | $ /plugin marketplace add plumbgoat/sprint-report |
| Linear | Read and update issues, cycles, and projects from where you're coding. | FREEMIUM | $ claude mcp add linear |
| Atlassian | Jira & Confluence — issues, boards, and docs, connected to your workflow. | FREEMIUM | $ claude mcp add atlassian |
| Notion | Read and write workspace docs and databases without switching tabs. | FREEMIUM | $ claude mcp add notion |
| Slack | Read and post to channels — pull a thread's context in, or send an update out. | FREEMIUM | $ claude mcp add slack |
| Asana | Manage tasks and projects conversationally, tied to the work you're shipping. | FREEMIUM | $ claude mcp add asana |
06
Prompts & context
Feed the model the right things.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| prompt-forgeOURS | Build, improve, and battle-test prompts against real inputs — then save the winners as reusable slash commands. | FREE | $ /plugin marketplace add plumbgoat/prompt-forge |
| Context7 | Pulls up-to-date library documentation into context so the agent codes against current APIs, not stale training. | FREEMIUM | $ claude mcp add context7 |
| claude-md-management | Keep your CLAUDE.md tidy and current — the file that steers every session. | FREE | $ /plugin install claude-md-management |
07
Data & backend
Talk to your database directly.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| Supabase | The official remote MCP server for Supabase — query Postgres, manage auth and storage, and deploy edge functions, no self-hosting required. | FREEMIUM | $ claude mcp add --transport http supabase https://mcp.supabase.com/mcp |
| PostgreSQL | Query and inspect your Postgres — schema, rows, and plans — from the editor. | FREE | $ claude mcp add postgres |
| Redis | Inspect keys, run commands, and reason about your cache or queue data straight from the editor. | FREEMIUM | $ claude mcp add redis |
| MongoDB | Run database operations and get optimization guidance against your collections. | FREEMIUM | $ claude mcp add mongodb |
| BigQuery | Query large datasets in natural language and get results without hand-writing SQL. | PAID | $ claude mcp add bigquery |
| Firebase | Manage your Firebase backend — data, auth, and functions — conversationally. | FREEMIUM | $ claude mcp add firebase |
| Neon | Serverless Postgres — spin up branches, run queries, and manage projects from the editor. | FREEMIUM | $ claude mcp add neon |
| Pinecone | Vector database operations — build and query embeddings for RAG and semantic search. | FREEMIUM | $ claude mcp add pinecone |
| Convex | A full-stack reactive backend — data, functions, and real-time sync in one place. | FREEMIUM | $ claude mcp add convex |
| ClickHouse | Query a ClickHouse column store — fast analytics over huge event tables. | FREEMIUM | $ claude mcp add clickhouse |
08
Security & auth
Catch holes before they ship.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| Snyk | Scans dependencies, code, IaC, and containers for vulnerabilities as the agent writes — Secure-at-inception guardrails baked into Claude Code. | FREEMIUM | $ npx -y snyk@latest mcp configure --tool=claude-cli |
| 1Password | Resolves secrets from your vault at runtime — API keys and credentials never land in code, config files, or chat history. | PAID | $ claude mcp add 1password |
| Aikido | SAST, secret, and infrastructure scanning — flags vulnerabilities as the agent writes code. | FREEMIUM | $ /plugin install aikido |
| 42Crunch | Automated API security testing and audit — hardens your endpoints against the OWASP API risks. | FREEMIUM | $ /plugin install 42crunch-api-security-testing |
| Auth0 | Add enterprise-grade authentication without hand-rolling it — login, sessions, and roles. | FREEMIUM | $ claude mcp add auth0 |
| security-guidance | Anthropic's own security best-practice guidance, applied to the code you're writing. | FREE | $ /plugin install security-guidance |
09
Design & assets
Bring design into the build.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| Figma | Pull real design context — components, tokens, and specs — into the code you're generating. | FREEMIUM | $ claude mcp add figma |
| Canva | Create, edit, review, and resize Canva designs without leaving your workflow. | FREEMIUM | $ claude mcp add canva |
| Cloudinary | Manage and transform image and video assets — upload, optimize, and deliver from code. | FREEMIUM | $ claude mcp add cloudinary |
10
Deploy & infra
Get it live and keep it up.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| AWS | AWS's own agent toolkit — access to docs, skills, and the full AWS API surface for building and operating on AWS. | FREEMIUM | $ /plugin marketplace add aws/agent-toolkit-for-aws |
| Terraform | HashiCorp's official MCP server — look up providers and modules and reason about your Terraform state and plans. | FREE | $ claude mcp add terraform |
| Cloudflare | Build and deploy Workers, Durable Objects, and edge apps — and tune web performance. | FREEMIUM | $ claude mcp add cloudflare |
| Vercel | Deploy frontend apps, inspect preview builds, and manage projects from the editor. | FREEMIUM | $ claude mcp add vercel |
| Netlify | Ship sites and serverless functions, and manage deploys conversationally. | FREEMIUM | $ claude mcp add netlify |
11
Search & research
Give the model the live web.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| Tavily | Search API built specifically for AI agents — the default web-search backend behind a huge share of agent frameworks. | FREEMIUM | $ claude mcp add --transport http tavily https://mcp.tavily.com/mcp/?tavilyApiKey=<key> |
| Exa | AI-native web search built for agents — high-quality results and content, not link spam. | FREEMIUM | $ claude mcp add exa |
| Firecrawl | Scrape and crawl any site into clean, structured markdown the model can actually use. | FREEMIUM | $ claude mcp add firecrawl |
| Perplexity | Ask a research question and get a sourced, up-to-date answer pulled into your session. | FREEMIUM | $ claude mcp add perplexity |
12
Build your own
Make plugins, agents, and MCP servers.
| Add-on | What it does | Price | Install |
|---|---|---|---|
| plugin-dev | A toolkit for building Claude Code plugins — scaffolding, structure, and validation. | FREE | $ /plugin install plugin-dev |
| mcp-server-dev | Design and build MCP servers — the universal connectors that work across every AI tool here. | FREE | setup on the linked page ↗ |
| Smithery | The registry and CLI for the ecosystem — discover and install thousands of MCP servers with one command instead of hand-wiring config. | FREEMIUM | $ npx -y @smithery/cli install <server> --client claude |
| agent-sdk-dev | Build custom agents on the Claude Agent SDK — the foundation under Claude Code itself. | FREE | setup on the linked page ↗ |
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Starter stacks
Grab-and-go bundles for a kind of work.