Claude Code Plugins (2026): What Developers Install

The best Claude skills are the SKILL.md packages that Hacker News users and independent reviewers keep recommending. This list ranks collections and single skills you can install today, with what each adds and its catch. If you want Claude to plan and test before it codes, get Superpowers. If you want it to question you before it starts, get grill-me from Matt Pocock's skills. For better-looking pages, start with frontend-design and add Impeccable to review the result. To build your own skills, or to make real Word, Excel, PowerPoint and PDF files, use Anthropic's repository. For marketing work, use Corey Haines's pack. Skills install in three ways. In Claude Code, run /plugin install from a marketplace, or copy a folder into ~/.claude/skills. For most coding agents, npx skills add owner/repo does the copying. In the Claude apps, upload a ZIP under Customize > Skills. Skills follow the open Agent Skills format, so most of these also run in Codex, Cursor and Gemini CLI. Older guides are now wrong in places. Claude Code has merged custom commands into skills. Superpowers and Matt Pocock's skills are in Anthropic's official marketplace, so adding a separate marketplace is no longer needed. The Karpathy repository moved to a new owner. Star counts are huge and say little, and a link list such as awesome-claude-skills installs nothing. A skill is instructions plus scripts that run with your agent's permissions. Snyk scanned 3,984 skills from ClawHub and skills.sh and found a critical security issue in 13.4% of them. Read a skill before you install it, and install a few, not all. Items are ordered by how many independent people recommend each one, then by GitHub stars. Everything here is free. Numbers checked October 11, 2026.

The best OpenCode plugins, and which ones work on OpenCode 2, ranked by how many developers outside each project say they use them, in blog posts, hands-on reviews and Hacker News threads. If your sessions run out of context, start with Dynamic Context Pruning. If you want the agent to plan before it codes, get Superpowers, or Plannotator to review plans in a browser. For a team of subagents, oh-my-opencode-slim is the one that runs on the current version. For memory that stays on your machine, opencode-mem. The thing no plugin page says loudly: OpenCode 2.0 came out in September 2026 with a new plugin system, and plugins written for OpenCode 1 do not load on it. Older guides tell you to add a package name to the "plugin" list in opencode.json, which OpenCode 1 then installs at startup. On OpenCode 2 the list is called "plugins" and there is a command for it, opencode plugin add <package>. Check the Works with line on each pick before you upgrade. OpenCode 1 still gets releases. Two names to keep straight. The OpenCode here is the one at opencode.ai, now in the anomalyco/opencode repository on GitHub. An earlier Go project with the same name, opencode-ai/opencode, is archived and continues as Crush. And oh-my-opencode was renamed oh-my-openagent. Plugins that sign you in with a Claude or Gemini subscription are left out. Google and Anthropic treat that as against their terms, the popular Antigravity one is archived, and accounts have been flagged. A plugin runs with your full permissions, so read what you install. Ordered by how many independent recommendations each plugin has, then by downloads and stars. A plugin that does not load on the current OpenCode ranks below the ones that do. Numbers checked October 17, 2026.

The best extensions for the Pi coding agent (some people call them plugins), picked from the setups developers publish and the write-ups that tested them, not from download counts alone. Pi is deliberately bare: no sub-agents, no plan mode, no permission prompts. You add what you miss with one command, pi install npm:<package>. If you are starting out, three cover most of the gap with Claude Code: pi-subagents for delegation, pi-web-access for search, and rpiv-ask-user-question so the model asks before it guesses. Add Plannotator if you want plan mode, and pi-permission-system if you don't want the agent free to run anything. Two things have changed that older guides miss. Pi has had MCP support built in since version 0.99, so pi-mcp-adapter is now an upgrade and no longer a requirement. And several popular names have lookalikes: npm has at least four other packages named pi-mcp-adapter under other people's scopes, and more than one /btw extension, so install by the exact name shown here. Extensions run with the same access to your machine that Pi has. Pi's catalog lists more than 5,000 packages, so read the source of anything that touches your shell or credentials, and pin versions you depend on. Ordered by how many independent users and reviewers recommend each one (Kay Rhodes's setup guide, Composio's tested top ten, developers on Hacker News and Pi's own GitHub discussions), then by npm downloads and GitHub stars. Downloads count automated installs too, so treat them as a rough signal. Numbers checked October 10, 2026.

The best Figma MCP servers for turning designs into code with Claude Code, Cursor, Codex or VS Code, and for letting an agent edit the canvas, ranked by independent tests and recommendations. Start with Figma's own server if your AI client is on Figma's approved list and you have a Dev or Full seat, which costs $12 a month billed annually for Dev. On the free Starter plan, or a View or Collab seat, Figma allows only 20 calls a month, and Framelink, which goes through Figma's API, runs into a similar limit of 20 file reads. The plugin servers, Figma Console MCP, TalkToFigma and figwright, work through a plugin in Figma's desktop app instead, so those limits don't apply. Read or write: Framelink only reads. Figma's server writes to the canvas from its remote version, free during the beta and a paid, usage-based feature after that. The plugin servers read and write, so keep your client's tool approvals on: a write changes the live file. Ordered by how many independent tests and recommendations each server has, in blog posts, videos and Hacker News threads. Stars and downloads only break ties. Prices checked October 17, 2026.

The best OpenClaw skills, chosen from what developers and reviewers who run the agent say they keep installed, then checked against each skill's source and its ClawHub security audit. For email and calendar, start with Gog. For code, GitHub. For long articles, videos and podcasts, Summarize. For notes, Obsidian or Notion. To stop the agent repeating a mistake, self-improving agent. For cleaner prose, Humanizer. Safety first. ClawHub, the registry, lets anyone with a GitHub account publish, and a skill acts with whatever access your agent has. Security firms have counted more than a thousand malicious skills there since January 2026, and in June Unit 42 and Trail of Bits each showed skills getting past its scanners. OpenClaw's own June data labelled 25,504 of 67,453 skill versions suspicious and 206 malicious. Every skill page now has a security audit with an outcome such as Pass or Review. Read it, and the SKILL.md, before you install. Older guides are out of date in three ways. Most of the skills they tell you to install now ship with OpenClaw and switch on when their command-line tool is present. Web search, self-learning and memory search are built in, and Tavily has a first-party plugin, so the Tavily and QMD skills are no longer needed. And names are copied: at least five publishers use the slug gog, so install with the owner, as in @steipete/gog. Skill Vetter and Capability Evolver are on most lists and left out here. Skill Vetter's publisher links to a GitHub profile that no longer exists. ClawHub's audit marks Capability Evolver for review because it can run jobs handed to it by a remote server. Skills are ordered by how many independent reviewers and users recommend them, then by downloads or stars. All are free. Numbers checked October 11, 2026.

The best OpenCode alternatives are the terminal coding agents developers say they moved to in blog posts and Hacker News threads, checked against independent hands-on reviews. If OpenCode feels bloated, get Pi, or oh-my-pi if you want Pi with the tools already built in. If you want one vendor's best models at a flat monthly price, get Claude Code or Codex CLI. Codex is the one that sandboxes commands by default. If you want open source with any model and no single company in charge, get Goose. If you want the nicest terminal interface, get Crush. If you already pay for GitHub Copilot, its CLI is included. A few things the makers' pages won't tell you. OpenCode 2 has a new plugin API, so OpenCode 1 plugins don't run on it, and that is a reason recent switchers give on Hacker News. Crush grew out of an older Go project that was also called OpenCode, and its license is source-available, not open source. Gemini CLI stopped serving personal accounts on June 18, 2026, and Antigravity CLI replaced it. Aider has had no commits since May 22, 2026. Kilo CLI is built on OpenCode, so switching to it changes little. A free agent still needs a model: you pay a provider per token or run one on your own hardware. The list is ordered by how many independent developers and reviewers recommend each agent, then by GitHub stars, then by price. Prices checked October 11, 2026.