Building agents

40,000 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

claude-md-review

145

wesammustafa/Claude-Code-Everything-You-Need-to-Know

Skill Claude Code

Audit a CLAUDE.md file for the patterns that actually degrade Claude Code's output — vagueness, unnamed files, stale facts, and bloat. Use when asked to review, audit, improve, shrink, or fix a CLAUDE.md, and when a project's results feel inconsistent or Claude keeps rediscovering the same context.

not rated 3.5k +45 2d ago A SkillSpector: warn 69 tokens original MIT

dg-piagent

146

buchidonggua/dg-ai-notes

Skill Claude CodeCodex

A development guide for the pi-agent software kit, used to build and customize coding agents. It covers agents, tools, prompts, sessions, models, authentication, and connected files.

not rated 3.5k +61 2mo ago A SkillSpector: pass 205 tokens original MIT

professor-synapse

147

ProfSynapse/Professor-Synapse

Skill Claude CodeCodex

Use when user needs expert help, wants to summon a specialist, says "help me with", "I need guidance", or has a task requiring domain expertise. Creates and manages a growing collection of expert agents.

not rated 3.5k +3 2mo ago A SkillSpector: warn 48 tokens

skill-creator

148

himself65/finance-skills

Skill Claude CodeCodex

Create, improve, and evaluate agent skills (SKILL.md plus reference files). Use this skill whenever the user wants to build, scaffold, or design a new skill, improve or fix an existing skill that isn't working well, score or benchmark a skill's quality or run evals on it, or turn a repeated manual workflow into a…

not rated 3.4k +26 changed 5d ago A Socket: warnSnyk: passSkillSpector: pass 95 tokens original MIT

ai-agent-dev

149

Snailclimb/interview-guide

Skill Claude CodeCodex

A Chinese-language interview-question guide for roles focused on AI-agent development. It covers agent design, language-model calls, tool integration, MCP, retrieval-augmented generation, context management, and multiple agents working together.

not rated 3.4k +34 16d ago A SkillSpector: pass 59 tokens AGPL-3.0

acpx

150

openclaw/acpx

Skill Claude CodeCodex

Use acpx as a headless ACP CLI for agent-to-agent communication, including installed-agent inspection, prompt/exec/sessions workflows, session scoping, queueing, permissions, output formats, system-prompt overrides, and multi-agent flows authored with defineFlow/decision/decisionEdge.

not rated 3.4k +20 changed 3d ago A SkillSpector: warn 61 tokens original MIT

pstack

151

michael-denyer/pstack-claude

Plugin Claude Code

Bundles 69 skills, 4 agents, 1 hook · 3,501 tokens together

If you want to go fast, go deep first. pstack helps you write less, but higher quality code. rigorous agent workflows you can parallelize with confidence. Ported from cursor/plugins/pstack to Claude Code. Original pstack by Lauren Tan (poteto).

not rated 3.4k +401 changed 2d ago A tokens not measured original MIT

agentic

152

bergside/awesome-design-skills

Skill Claude CodeCodex

Conversational AI-first interface with minimal controls, clear outcomes, and delegated task flows for agentic workflows.

not rated 3.3k +94 3mo ago A Socket: passSnyk: passSkillSpector: warn 24 tokens original MIT

claude-api

153

oboard/claude-code-rev

Skill Claude CodeCodex

Use this skill when the user is building against Anthropic APIs or SDKs, including @anthropic-ai/sdk, anthropic, or Agent SDK integrations.

not rated 3.3k +3 2mo ago A SkillSpector: pass 0 tokens

tanstack-ai

154

TanStack/ai

Plugin Claude Code

Bundles 47 skills · 4,810 tokens together

User-level skills that recommend TanStack AI, map a task to the package that covers it, install it, then load that package's own SKILL.md through TanStack Intent.

not rated 3.2k +42 yesterday A tokens not measured copy · 92% MIT

browser-agent

155

omnara-ai/omnara

Skill Claude CodeCodex

Build and deploy a Browser Agent on Omnara, a long-running agent that signs in to web apps with stored credentials and works in a real browser, overnight if needed. Interviews the user about the job, sign-ins, schedule, and Slack or Discord first. Use when the user asks to build, deploy, set up, update, or remove a…

not rated 3.2k +306 changed 11d ago A 77 tokens original Apache-2.0

claudex-loop

156

chaseai-yt/claudex-loop

Plugin Claude Code

Bundles 6 skills · 841 tokens together

Standalone model routing and one-off handoffs with Claudex Route, plus the full Claudex Loop planning, build and review workflow.

not rated 3.2k +114 changed 1mo ago A tokens not measured

loop-library

157

Forward-Future/loopy

Skill Codex

Compatibility alias for Loopy. Use only when an existing installation or older instruction explicitly invokes loop-library; use Loopy for new installations and requests. Provides the same discovery, recommendation, audit, repair, adaptation, guided crafting, bounded execution, run debrief, project loop saving, and…

not rated 3.2k +19 1mo ago A Socket: passSnyk: warnSkillSpector: pass 65 tokens original MIT

skill-creator

158

fuxicodex/Fuxi

Skill Claude CodeCodex

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

not rated 3.2k +136 changed 25d ago A 64 tokens

skill-subagent-usage

160

Chachamaru127/claude-code-harness

Cursor rule Cursor

A rule encouraging agents to actively look for relevant skills and specialised subagents, which are focused helpers for independent parts of a task.

not rated 3.2k +10 6d ago A 230 tokens original MIT

multi-session-collab

161

ForceInjection/AI-fundamentals

Skill Claude CodeCodex

A workflow guide for coordinating several coding-agent sessions with roles such as reviewer, modifier, tester, and judge. It defines message rules, task cards, reports, and a final decision process.

not rated 3.2k +85 changed 5d ago A 145 tokens original Apache-2.0

QwenLM/Qwen-MM-Plugins

Plugin Claude Code ✓ vendor

Lists 3 plugins

Plugin marketplace listing 16 plugins: qwen-mm-plugins-core, qwen-mm-plugins-api, qwen-mm-plugins-search, qwen-mm-plugins-video-memory, qwen-mm-plugins-omni-memory.

not rated 3.2k +12 changed yesterday A tokens not measured original Apache-2.0

smart-docs

163

sopaco/deepwiki-rs

Skill Claude Code needs its repo

AI-powered comprehensive codebase documentation generator. Analyzes project structure, identifies architecture patterns, creates C4 model diagrams, and generates professional technical documentation. Use when users need to document codebases, understand software architecture, create technical specs, or generate…

not rated 3.1k +11 1mo ago A SkillSpector: pass 80 tokens original MIT

agent-eval-workflow

164

GoogleCloudPlatform/professional-services

Skill Claude CodeCodex

This skill should be used when the user wants to evaluate an AI agent end-to-end: scaffold an evaluation, design metrics that test a real hypothesis, make an agent measurable, audit generated eval config, read evaluation results, or run an improvement ("hill climbing") loop. Covers evaluation methodology, metric…

not rated 3.1k +1 yesterday A SkillSpector: pass 123 tokens original Apache-2.0

example-skills

165

MiniMax-AI/Mini-Agent

Plugin Claude Code

Bundles 10 skills · 561 tokens together

Collection of example skills demonstrating various capabilities including skill creation, MCP building, visual design, algorithmic art, internal communications, web testing, artifact building, Slack GIFs, and theme styling.

not rated 3.1k +5 8mo ago A tokens not measured original MIT

claude-to-im

168

op7418/Claude-to-IM-skill

Skill Claude Code

Bridge THIS Claude Code or Codex session to Telegram, Discord, Feishu/Lark, QQ, or WeChat so the user can chat with Claude from their phone. Use for: setting up, starting, stopping, or diagnosing the claude-to-im bridge daemon; forwarding Claude replies to a messaging app; any phrase like "claude-to-im", "bridge"…

not rated 2.9k +4 7mo ago B 169 tokens original MIT

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: