anthropic for Claude Code

16,669 mods tagged anthropic that install into Claude Code, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.

Also for Claude Code: Git and workflow · Web3 and blockchain · React · Python · TypeScript · docker · Localization · Go · Rust · nextjs · bun · android

ecc

01

affaan-m/ECC

Plugin Claude Code

Bundles 70 skills, 56 commands, 68 agents, 1 MCP server · 6,865 tokens together

Harness-native ECC plugin for engineering teams - 68 agents, 286 skills, 94 legacy command shims, reusable hooks, rules, MCP conventions, and operator workflows for Claude Code plus adjacent agent harnesses.

not rated 252k +4.4k changed 5d ago A ✓ AI review tokens not measured original MIT

dcf-model

02

NousResearch/hermes-agent

Skill Claude CodeCodex

Build discounted cash flow valuation workbooks in Excel.

not rated 243k +2.6k today A Snyk: warn 14 tokens original MIT

docs-langchain

03

langchain-ai/langchain

MCP server Claude CodeCodexCursor +2 ✓ vendor

One of 2 in .mcp.json

MCP server "docs-langchain", hosted remotely at docs.langchain.com, as configured in langchain-ai/langchain.

5 · 1 146k +280 today A tokens not measured original MIT

caveman

04

JuliusBrussee/caveman

Plugin Claude Code

Bundles 20 skills, 7 commands, 3 agents · 1,184 tokens together

Ultra-compressed communication mode. Cuts 65% of output tokens against an unprompted baseline (measured) while keeping full technical accuracy by speaking like a caveman.

not rated 104k +1.6k changed today A tokens not measured

ulw-research

08

code-yeongyu/oh-my-openagent

Skill Claude CodeCodex

Runs maximum-saturation research with a cooperating team, claim-graph gating, and a cited, QA'd deliverable. Use when the user explicitly asks for research or a deep investigation, including any 'ulw' research wording.

not rated 69k +145 changed 2d ago A 51 tokens

claude-api

09

asgeirtj/system_prompts_leaks

Skill Claude CodeCodex

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude…

not rated 64k +278 yesterday A ✓ AI review Snyk: pass 294 tokens original CC0-1.0

omni-inference

10

diegosouzapw/OmniRoute

Skill Claude CodeCodex

The core OpenAI-compatible inference endpoints: chat completions, embeddings, images, audio (TTS/STT), moderations, rerank, and the Responses API. The primary integration surface for AI agents.

not rated 62k +1.8k changed 5d ago A Socket: passSnyk: warn 47 tokens original MIT

codebase-design

11

danny-avila/LibreChat

Skill Claude CodeCodex

Shared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more testable or AI-navigable, or when another skill needs the deep-module vocabulary.

not rated 43k +149 today A 57 tokens copy · 100% MIT

davila7/claude-code-templates

Skill Claude CodeCodex

Product marketing, positioning, GTM strategy, and competitive intelligence. Includes ICP definition, April Dunford positioning methodology, launch playbooks, competitive battlecards, and international market entry guides. Use when developing positioning, planning product launches, creating messaging, analyzing…

not rated 31k +70 today A Socket: passSnyk: warn 92 tokens original MIT

claude-hud

14

jarrodwatts/claude-hud

Plugin Claude Code

Bundles 2 commands · 28 tokens together

Real-time statusline HUD for Claude Code - context health, tool activity, agent tracking, and todo progress.

not rated 28k +68 yesterday A tokens not measured original MIT

9router-video

15

decolua/9router

Skill Claude CodeCodex

Generate videos via 9Router /v1/videos/generations using xAI Grok Imagine (grok-imagine-video). Async job flow - submit, poll requestid until done, download MP4. Use when the user wants to create, generate, or render a video, text-to-video (txt2vid), or image-to-video.

not rated 27k +319 yesterday A Snyk: pass 74 tokens original MIT

design-system

16

Donchitos/Claude-Code-Game-Studios

Skill Claude Code

Guided, section-by-section GDD authoring for a single game system. Gathers context from existing docs, walks through each required section collaboratively, cross-references dependencies, and writes incrementally to file.

not rated 25k +136 3mo ago A Socket: passSnyk: pass 45 tokens original MIT

xbtlin/ai-berkshire

Skill Claude Code

A research workflow for private companies, meaning businesses whose shares are not traded on a public stock exchange. It uses several research roles to investigate the company in depth.

not rated 16k +98 today A Snyk: warn 33 tokens original MIT

imagegen

18

NanmiCoder/cc-haha

Skill Claude Code

Generate original images, artwork, product visuals, diagrams, or other raster assets with the desktop's configured image provider. Use whenever the user asks to create or generate an image.

not rated 14k +25 yesterday A 38 tokens original MIT

aden-hive/hive

Skill Claude CodeCodex

Required before any hive-browser CLI command. The browser is driven from the terminal by running hive-browser ... --json via terminalexec — not via MCP tools. Teaches the browser lifecycle rules (the bridge attaches to the USER'S running Chrome — never kill or launch browser processes; timeouts are transport issues…

not rated 11k +20 yesterday A 142 tokens original Apache-2.0

html-artifacts

20

langchain-ai/open-swe

Skill Claude CodeCodex ✓ vendor

Author the HTML for a plan artifact, dashboard iframe, or Slack attachment — structure, design plan, available runtime, theming, and craft. Read this before writing HTML for saveplan, outputiframe, or slackattachhtml.

not rated 11k +23 today A Snyk: pass 51 tokens original MIT

free-llm-apis

21

mnfst/awesome-free-llm-apis

Skill Claude CodeCodex

Guide users through obtaining and configuring free API keys for LLM providers. Use when the user wants to set up a free LLM API, get a free API key, connect to a free model provider, configure an OpenAI-compatible endpoint at no cost, or asks about free tiers for AI models. Triggers on "free API key", "free LLM", "set…

not rated 7.4k +105 17d ago A 116 tokens original CC0-1.0

op7418/guizang-social-card-skill

Skill Claude CodeCodex

Generate Guizang-style social card image sets, Live Photo motion cards, material-first Live Photo puzzle layouts, triple Live Photo collages, long-video-to-Live-Photo treatments, and WeChat official account cover pairs from articles, scripts, screenshots, product notes, subtitles, photos, or user-supplied videos. Use…

not rated 6.9k +93 2mo ago A 170 tokens AGPL-3.0

clawrouter

23

BlockRunAI/ClawRouter

Skill Claude CodeCodex

Hosted-gateway LLM router — save 84% on inference costs. A local proxy that forwards each request to the blockrun.ai gateway, which routes to the cheapest capable model across 76 models from OpenAI, Anthropic, Google, DeepSeek, xAI, Z.AI, and more. 7 free open-weight models included. Also exposes realtime market data…

not rated 6.6k +7 changed today A 222 tokens original MIT

feishu-create-doc

24

op7418/CodePilot

Skill Claude CodeCodex

A skill for creating Feishu cloud documents from Lark-flavoured Markdown, a Feishu-specific form of plain-text document formatting.

not rated 6.4k +8 2d ago A 40 tokens

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: