Overview
Category maturity: Growth. The Claude Code extension ecosystem has the star counts and contribution velocity of a maturing category, though discovery infrastructure (no canonical registry, fragmented "awesome" lists) and quality signaling (no ratings, no install counts outside quemsah's tracker) still lag behind what the volume warrants.
Direction of travel: The next 4-8 weeks will likely produce a spike in claw-code-adjacent skill/subagent collections (Rust-native, fork-compatible with the leaked architecture) alongside accelerated consolidation around the two or three "awesome" lists with the best SEO and submission tooling. The selective-install pattern pioneered by affaan-m/everything-claude-code v1.9.0 is on track to become table stakes for any serious multi-component collection.
Coalesced patterns: The community has settled on several durable conventions:
- SKILL.md as the primary capability-extension format
- Category taxonomy folders (01-core-development, 02-frontend, 03-quality-security, etc.) first established by VoltAgent and now adopted widely
- Shell install scripts (install-agents.sh pattern) for one-command setup
- CLAUDE.md files at the repo root for context injection
- Cross-tool collections standardizing on a single skills/ directory with agent-specific subdirectories (.claude/, .codex/, .cursor/) inside each skill package
Unsolved problems: Several gaps carry real risk:
- Versioning is the most acute gap — there is no semver contract between skills/agents and the CLI versions they target, meaning a March agent may silently fail on a February install
- Quality signaling is absent: star counts reflect discovery, not reliability
- Cross-tool compatibility claims are largely unverified by automated testing
- The source-leak episode has raised a new concern: the leaked architecture may cause a fork in community conventions (CLAW.md vs. CLAUDE.md, etc.) that fragments the tooling surface over the coming months
Claude Code
| Repo | Stars | Last commit | Notes |
|---|---|---|---|
| affaan-m/everything-claude-code | ~120k★ | Mar 2026 | v1.9.0 (Mar 2026): selective-install architecture, 6 new language-specific agents, 12 language ecosystem configs, SQLite-backed session state; now 28 agents, 119 skills, 60 slash commands, 113 contributors |
| hesreallyhim/awesome-claude-code | ~35k★ | Apr 1, 2026 | Actively receiving submissions (issues #1266 Claudify, #1277 buddy-card this week); the de facto community index for hooks, slash-commands, skills, agent orchestrators, and plugins |
| wshobson/agents | ~32.7k★ | Apr 1, 2026 | Active daily commits; 72 plugins, 112 agents, 146 skills; reference implementation for multi-agent orchestration pipelines; issues opened Mar 12–13 indicate active community triage |
| ComposioHQ/awesome-claude-skills | ~41–49k★ | Mar 17, 2026 | 252 open issues signals high contributor volume; curated skills for Claude.ai, Claude Code, and Claude API; sibling repo awesome-claude-plugins (~10k★) also active |
| instructkr/claw-code | ~100k★ | Apr 1, 2026 | New entrant — born from source leak. Clean-room Rust rewrite seeded by the March 31 npm sourcemap exposure. Claims fastest-ever GitHub repo to 100k stars (surpassing previous record-holders). Adds "better harness tools" framing; Rust branch active under dev/rust. Competitive threat vector: may seed its own subagent/skill ecosystem. |
Notable this week: The accidental publication of Claude Code's 510,000-line TypeScript source via npm v2.1.88 (window: March 31, 00:21–03:29 UTC) created a secondary security incident (a trojanized axios version rode the same package window) while simultaneously producing the most-starred GitHub repository in a single day. Anthropic confirmed the leak; the source is now permanently mirrored across dozens of repos. The instructkr/claw-code project has become the most-watched derivative, rewriting the CLI in Rust with its own agent harness model.
Ones to watch (1k–10k★):
- VoltAgent/awesome-claude-code-subagents (~8.1k★): 100+ categorized subagents; the VoltAgent-branded sibling to their cross-tool skills repo; active install script (install-agents.sh) lowers onboarding friction.
- rohitg00/awesome-claude-code-toolkit (~9.9k★): Closest competitor to wshobson/agents in scope — 135 agents, 35 skills (+400k via SkillKit integration), 42 commands, 150+ plugins, 19 hooks, 15 rules; approaching 10k threshold.
- ComposioHQ/awesome-claude-plugins (~10k★ reported by one tracker): Curated plugin list with connect-apps plugin bridging 500+ external services; metrics repo at quemsah/awesome-claude-plugins tracking adoption across ~9,988 indexed repos.
- hesreallyhim/a-list-of-claude-code-agents (sub-10k): Community-submitted agent list spun out from the main awesome-claude-code repo; growing submission queue.
- rohitg00/pro-workflow (sub-10k): Self-correcting memory system with 17 battle-tested skills, parallel worktrees, and agent teams; growing interest in the "memory that compounds" positioning.
Cursor
| Repo | Stars | Last commit | Notes |
|---|---|---|---|
| PatrickJS/awesome-cursorrules | ~38.8k★ | Mar/Apr 2026 | Still the canonical Cursor rules collection; .cursorrules and newer .cursor/rules directory both covered; activity primarily in rules-new subdirectory as Cursor MDC format matures |
Notable this week: Cursor collection activity remains steady but quieter relative to the Claude Code surge. The MDC format (.cursor/rules) is progressively superseding .cursorrules, driving rule migration commits.
Ones to watch (1k–10k★):
- sanjeed5/awesome-cursor-rules-mdc (~3.3k★): MDC-format-specific collection with 879+ .mdc rules files; uses Exa semantic search and Gemini for content generation; positioned as the forward-looking complement to PatrickJS repo as Cursor's rules format evolves.
Codex CLI
Codex CLI collection activity remained relatively quiet this week; the source-leak story dominated developer attention. No new 10k+ entrants.
Ones to watch (1k–10k★):
- VoltAgent/awesome-codex-subagents (~2.4k★): 130+ Codex subagents across 10 categories using TOML format; structurally mirrors awesome-claude-code-subagents with Codex-specific configuration.
Cross-tool collections
Collections that explicitly support two or more coding agents in a single repo.
| Repo | Stars | Tools covered | Notes |
|---|---|---|---|
| VoltAgent/awesome-agent-skills | ~11.2k★ | Claude Code, Codex, Antigravity, Gemini CLI, Cursor, GitHub Copilot, OpenCode, Windsurf, and more | Official skills from Anthropic, Google Labs, Vercel, Stripe, Cloudflare, Netlify, Sentry, Expo, Hugging Face, Figma + community; last updated Mar 12, 2026; ~1k forks |
| affaan-m/everything-claude-code | ~120k★ | Claude Code, Codex, OpenCode, Cursor | Already in Claude Code section; cross-tool support is first-class, not an afterthought — .opencode directory ships alongside .claude |
Notable this week: VoltAgent/awesome-agent-skills crossed 10k and crossed 1k forks in Q1 2026, cementing it as the primary cross-tool skills index. The OpenClaw orbit (VoltAgent/awesome-openclaw-skills with 5,400+ skills mirroring ClawHub's 13,729-skill public registry) is an emerging second center of gravity in cross-tool skill distribution.
Ones to watch (1k–10k★):
- VoltAgent/awesome-openclaw-skills (~5.4k skills catalogued): Mirrors the OpenClaw public registry; categorized by domain; includes coding-agents-and-ides category that maps skills to Claude Code, Cursor, Gemini CLI, etc.
- sickn33/antigravity-awesome-skills (sub-10k): 1,340+ skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more; ships an installer CLI and curated bundles.
- alirezarezvani/claude-skills (sub-10k): 220+ skills covering engineering, marketing, product, compliance, and C-level advisory roles; compatible with Claude Code, Codex, Gemini CLI, Cursor, and 8 additional coding agents.
Infrastructure signals
Claude Code v2.1.88 source leak (March 31, 2026): Anthropic confirmed that build tooling (Bun bundler) inadvertently included a 59.8 MB TypeScript sourcemap in the public npm package for approximately 3 hours (00:21–03:29 UTC). The 512,000-line codebase was immediately mirrored across GitHub. A secondary malicious axios package (versions 1.14.1 / 0.30.4 carrying a cross-platform RAT) circulated during the same window. Anthropic has patched the packaging pipeline. The source material is now in permanent public circulation.
Claude Code CLI — recent feature additions (March 2026, v2.x series):
- Named subagents now appear in the @ mention typeahead — first-class discoverability for installed agents.
- Subagents support
isolation: "worktree"frontmatter to run in a temporary git worktree, enabling safe parallel agent execution. - Agent definitions now support
background: trueto always run as a background task. effort,maxTurns, anddisallowedToolsfrontmatter fields added for plugin-shipped agents.- Plugins can ship
settings.jsonfor default configuration that users can override. ${CLAUDE_PLUGIN_DATA}variable added for plugin persistent state that survives plugin updates.ConfigChangehook event fires when configuration files change mid-session (enterprise security auditing use case).StopFailurehook event added for rate-limit and auth-failure turn endings.--bareflag for scripted-pcalls skips hooks, LSP, plugin sync, and skill directory walks.--channelspermission relay lets channel servers forward tool approval prompts to the user's phone.- Legacy Agent SDK removed; migration to
@anthropic-ai/claude-agent-sdkis now required. - Prompt cache miss bug fixed for long sessions (tool schema bytes changing mid-session + nested CLAUDE.md re-injection).
Claude Agent SDK (TypeScript): Active changelog at anthropics/claude-agent-sdk-typescript; the SDK migration requirement above will affect all plugin authors still on the legacy SDK.