Anthropic launched Claude Design on April 17 — Opus 4.7-powered tool that generates prototypes, slides, and one-pagers from prompts while reading your codebase and design files to apply your design system. Research preview for Pro/Max/Team/Enterprise; Figma stock dropped 7.28% on launch day.
Floating macOS pager for Claude Code: see what agents are doing, respond by voice, and never miss a permission prompt. 100% Swift, zero dependencies, fully local, no telemetry — hit #6 on Product Hunt daily on April 15 with 220 upvotes.
Trending since March 2026. Skill that turns any codebase or knowledge base into an interactive knowledge graph from inside Claude Code. ~8.6k stars by mid-April.
Desktop mascot companion that watches your Claude Code agents and shows speech bubbles for permission requests — ships with Clippy and community mascots, or generate custom ones at masko.ai. Free, MIT-licensed, 100% local.
Anthropic clarifies that Free/Pro/Max OAuth tokens cannot be used in third-party tools (incl. its own Agent SDK) — ending the OpenClaw-era subscription resale loophole.
"Why use many token when few token do trick" — the viral meme-skill (39.7k stars) that cuts ~65–75% output tokens and ~46% input tokens while preserving technical accuracy. Arjan Brussee's LinkedIn post spawned 30+ comments; launched on Product Hunt this week.
costviralskill↑ April 2026
plugin · token · marketplace
claude plugin marketplace add JuliusBrussee/caveman && claude plugin install caveman@caveman
Trending since February 2026. MCP server (11.7k stars, v2.3.2 Apr 14) that builds an AST knowledge graph with tree-sitter + SQLite, delivering 6.8× fewer tokens on code reviews and up to 49× on daily tasks. Plugs straight into Claude Code's MCP config with a single pip install.
Plugin (46k+ stars, gained 3k in a single day) that auto-captures sessions, compresses them with the Claude Agent SDK, and injects relevant context at the start of the next session. Uses SQLite + Chroma vector search; cross-platform.
Garry Tan's exact Claude Code setup — 23 opinionated tools wired up as CEO/Designer/EM/QA personas. Hit ~78k stars from a March 11 creation, the breakout viral template of the month.
Trending since January 2026. Full agent harness with 48 agents, 183 skills, hooks, rules and MCP configs. Hit ~162k stars three months after a Jan 18 creation.
Container-native alternative to OpenClaw — messaging integrations, memory, scheduled jobs, runs on Anthropic's Agents SDK. Exploded to ~28k stars from Jan 31.
viral↑ January 2026📈 ~27,560 stars
memory · anthropic · alternative
gh repo fork qwibitai/nanoclaw --clone && cd nanoclaw && claude
Spec-driven meta-prompting system for Claude Code (55.2k stars, updated April 19) with five slash commands: /gsd-new-project, /gsd-plan-phase, /gsd-execute-phase, /gsd-spike, and /gsd-sketch. Enforces a structured plan-then-build loop that prevents runaway agent sessions.
Terminal app (7.1k stars) for managing multiple Claude Code, Codex, and Gemini agents in parallel — each in its own isolated git workspace with a tmux pane. Supports any agent that speaks the Claude Code protocol.
Released April 16: 87.6% SWE-bench in new xhigh effort mode, 98.5% visual acuity, 3.75MP images (3× higher than Opus 4.6), and /ultrareview for parallel multi-agent cloud code review. Price unchanged at $5/M input, $25/M output; Auto mode now available to Max subscribers.
OpenAI ships an official Claude Code plugin — call Codex from inside CC for review or delegation. Cross-vendor moment of the month, 15.2k stars in ~3 weeks.
Four releases in four days (Apr 15–18): CLI now spawns a native binary instead of bundled JS, sandbox network domain blocking, OSC 8 clickable URLs in terminal, /tui fullscreen mode, push notifications, /less-permission-prompts skill, and plan files auto-named after the prompt.
Cowork desktop reaches Windows with full feature parity — file access, MCP connectors, plugins — opening Anthropic's autonomous agent to ~70% of desktops.
Template-aware slide co-author lands on the $20/mo Pro tier — read existing decks, edit with brand-respecting precision, generate full structures from a prompt.
10 department plugin packs + 12 new MCP connectors (Google Workspace, DocuSign, FactSet, Harvey…) and a 'Customize' admin UI for private internal marketplaces.
Anthropic's first official vertical plugin pack — ~7.7K stars, MCP-backed integrations for finserv workflows like equity research and compliance review.
Open-source marketplace index with 423 plugins, 2,849 skills, and 177 agents (2k+ stars). The ccpi CLI lets you search and install anything from the index with a single command.
Curated list of 40+ Claude Code plugins (1.4k stars) led by connect-apps — a flagship plugin with 500+ integration connectors — plus frontend-design, CCHub, and other high-signal picks.
Full dev lifecycle plugin suite (413 stars): 7 core plugins covering planning through deployment, plus three MCP servers (hex-line, hex-graph, hex-ssh) for graph visualization and remote SSH sessions inside Claude Code.
20+ composable skills enforcing clarify→design→plan→code→verify discipline — exploded to 55K+ stars in Feb after Anthropic accepted it into the official marketplace.