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-expert

457

josix/awesome-claude-md

Agent Claude Code

Use this agent when you need expert guidance on creating, improving, or reviewing CLAUDE.md files and LLM integration patterns. Examples: Context: User wants to create a CLAUDE.md file for their new TypeScript project. user: 'I'm starting a new React TypeScript project and want to create a CLAUDE.md file. What should…

not rated 617 +5 2d ago A 0 tokens

skill-creator

459

ECNU-ICALK/AutoSkill

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, update 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 606 +2 5mo ago A 63 tokens

mdflow

460

johnlindquist/mdflow

Skill Claude Code

Build and maintain a project's ./flows directory, the agent roster. Each flow is one markdown file that runs as an AI agent (frontmatter + prompt body) on claude, codex, pi, cursor-agent, copilot, agy, or any CLI engine, with colocated behavioral evals. Use when the user asks to "create a flow", "add an agent to this…

not rated 604 +1 1mo ago A SkillSpector: warn 106 tokens original MIT

hcom-agent-messaging

461

aannoo/hcom

Skill Claude CodeCodex

Multi-agent communication for AI coding tools. Agents message, watch, and spawn each other across terminals. Use when setting up hcom or troubleshooting.

not rated 602 +23 changed 9d ago A 35 tokens original MIT

claw-orchestrator

462

Enderfga/claw-orchestrator

Skill Claude Code

Manage persistent coding sessions across Claude Code, Codex, Antigravity (agy), Grok Build, and OpenCode engines. Use when orchestrating multi-engine coding agents, starting/sending/stopping sessions, running multi-agent council collaborations, cross-session messaging, ultraplan deep planning, ultrareview parallel…

not rated 599 +4 changed yesterday A SkillSpector: warn 594 tokens original MIT

tunnel-mcp

463

openai/tunnel-client

Skill Claude CodeCodex ✓ vendor

Create, connect, list, and inspect MCP tunnel runtimes through the local tunnel-client plugin. Use when Codex needs to manage secure MCP tunnels with aliases and native tunnel-client runtime processes.

not rated 597 +18 2d ago A SkillSpector: pass 43 tokens original Apache-2.0

FradSer/dotclaude

Skill Claude CodeCodex

A skill that reviews remembered feedback about marketplace skills against the current files. It checks whether past problems still exist and updates either the skill or the stored memory.

not rated 596 +2 changed 1mo ago A SkillSpector: pass 99 tokens original MIT

create-custom-grader

465

NVIDIA/SkillEvaluator

Skill Claude CodeCodex ✓ vendor

Use when converting an existing benchmark, rubric, verifier, task YAML/JSON, or domain check into SkillEvaluator BYOG/BYOT custom evaluation.

not rated 595 +19 2d ago A SkillSpector: pass 35 tokens original Apache-2.0

claude-api

466

andrew-kramer-inno/claude-code-source-build

Skill Claude CodeCodex

This skill helps you build LLM-powered applications with Claude. Choose the right surface based on your needs, detect the project language, then read the relevant language-specific documentation.

not rated 594 +1 6mo ago A 0 tokens

agent-workflow

467

zhsama/claude-sub-agent

Command Claude Code

Automated multi-agent development workflow with quality gates from idea to production code.

not rated 593 +1 1y ago A 14 tokens

bcs-coordination

468

inclusionAI/Avernet

Skill Claude Code

A coordination engine for tasks that involve multiple bots, including shared context, bot discovery, routing, communication, and workflow coordination. It also describes interactive uses such as games, role-play, brainstorming, and interview practice.

not rated 593 +53 changed 2d ago A SkillSpector: pass 88 tokens original Apache-2.0

diagnose

469

sharpdeveye/maestro

Skill Claude Code

Use when the user wants to find problems, audit workflow quality, or get a comprehensive health check on their AI workflow.

not rated 591 5mo ago A 27 tokens original MIT

skill-router

470

stevesolun/ctx

Skill Claude CodeCodex

Repo-aware recommendation manager for ctx. Scans the active repository, identifies stack and workflow signals, recommends a capped set of skills, agents, and MCP servers, and unloads helpers that no longer match the current work after user confirmation. Harnesses are recommended by the custom-model onboarding flow or…

not rated 589 +1 11d ago A SkillSpector: pass 72 tokens original MIT

skilldeck

471

crossoverJie/SkillDeck

Skill Claude Code

Manage AI agent skills via natural language — install, update, delete, and assign skills to agents using SkillDeck's filesystem conventions.

not rated 588 +7 changed 3d ago E ✓ AI review SkillSpector: warn 29 tokens original MIT

skill-creator

472

ghbalf/freecad-ai

Skill Claude CodeCodex

Create new FreeCAD AI skills, modify existing skills, and iteratively improve them. Use when users want to create a skill from scratch, update or optimize an existing skill, capture a workflow as a reusable skill, or improve an existing skill's instructions. Also trigger when the user says "turn this into a skill"…

not rated 588 +11 changed 22d ago A SkillSpector: warn 85 tokens LGPL-2.1

skill-creator

473

ZMGID/kivio

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 586 +3 yesterday A SkillSpector: warn 64 tokens GPL-3.0

claude-dashboard

474

uppinote20/claude-dashboard

Plugin Claude Code

Bundles 4 commands, 1 hook · 52 tokens together

Unified status line for Claude Code with multi-CLI (Claude, Codex, Gemini, Antigravity, z.ai) usage monitoring, context, rate limits, and cost tracking.

not rated 583 +2 changed 18d ago A tokens not measured original MIT

skvm-general

476

SJTU-IPADS/SkVM

Skill Claude CodeCodex

Drive the skvm CLI on behalf of a user to profile models, AOT-compile skills, run skill-assisted tasks, run benchmarks, and manage compiled proposals. Trigger when the user asks to "profile", "aot-compile", "bench", "run a single ad-hoc task with a skill", or asks about skvm proposals. Do NOT trigger for jit-optimize…

not rated 567 +5 1mo ago C 107 tokens copy · 100% MIT

aish-add-skills

477

AI-Shell-Team/aish

Skill Claude CodeCodex

Create new skills from documents, tutorials, or examples. Use when user wants to create a skill from learning materials or existing content.

not rated 567 +4 2d ago A SkillSpector: warn 32 tokens original Apache-2.0

create-task

478

zli12321/LHTB

Skill Claude Code

Create a new Harbor task for evaluating agents. Use when the user wants to scaffold, build, or design a new task, benchmark problem, or eval. Guides through instruction writing, environment setup, verifier design (pytest vs Reward Kit vs custom), and solution scripting.

not rated 564 +1 13d ago A ✓ AI review 56 tokens copy · 88% Apache-2.0

agent-builder

479

keyuchen21/agentic-engineering-handbook

Skill Claude CodeCodex

Design and build AI agents for any domain. Use when users: (1) ask to "create an agent", "build an assistant", or "design an AI system" (2) want to understand agent architecture, agentic patterns, or autonomous AI (3) need help with capabilities, subagents, planning, or skill mechanisms (4) ask about Claude Code…

not rated 563 +10 5d ago A 125 tokens copy · 100% MIT

skills-discovery

480

Kamalnrf/claude-plugins

Skill Claude CodeCodex

Search for and install Agent Skills that give you specialized capabilities. Before starting work, ask might a skill exist that handles this better than my base knowledge? If the task involves specific technologies, frameworks, file formats, or expert domains. Search proactively, even if the user doesn't mention…

not rated 562 +2 6d ago A 90 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: