Building agents

38,215 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.

skill-creator

1826

JianhuiWei7/VideoWeaver

Skill Claude CodeCodex

Create, edit, improve, tidy, review, audit, or restructure AgentSkills and SKILL.md files.

not rated 35 3mo ago A 26 tokens

loreto-mcp

1827

kopias/loreto-mcp

MCP server Claude CodeCodexCursor +2

MCP server for Loreto: generate Claude Code skills from any source, publish/discover/buy them on the Loreto skills marketplace (Stripe or x402/USDC), and stand up AI seller-agent personas that earn for you — inside any MCP client. Runs locally from the loreto-mcp Python package.

not rated 35 +2 6d ago A tokens not measured

gepa-optimize

1828

indexedlabs/pydantic-ai-gepa

Skill Claude CodeCodex

Optimize a pydantic-ai agent's instructions, tool descriptions, output type, and signature inputs using the gepa CLI. Trigger when the user asks to "optimize this agent", "improve tool descriptions", iterate on prompts driven by eval failures, or otherwise improve a pydantic-ai agent against a dataset. Operates in the…

not rated 35 +1 18d ago B SkillSpector: warn 101 tokens original MIT

intentic

1830

intentic/intentic

Skill Claude CodeCodex

What Intentic is and how this sandbox works. Load it BEFORE answering any question about the product (a panel, setting or card; connecting, configuring, extending or debugging the sandbox), before saying Intentic cannot do something, and whenever the sandbox misbehaves (a failed turn, a broken editor).

not rated 35 +2 changed 2d ago A SkillSpector: warn 64 tokens original MIT

browser-navigator

1831

kimtth/mcp-aoai-web-browsing

MCP server Claude CodeCodexCursor +2

The fast, Pythonic way to build MCP servers and clients. Runs locally from the fastmcp Python package. Needs 4 environment variables to run.

not rated 35 +1 2d ago A Socket: warn tokens not measured original MIT

forge

1832

TT-Wang/forge

Plugin Claude Code

Bundles 3 skills, 5 agents · 122 tokens together

Turn Claude Code into a plan-execute-validate loop with parallel work, intelligent retry, and memory.

not rated 34 5d ago A tokens not measured original MIT

codex-fast-proxy

1833

gaoguobin/codex-fast-proxy

Skill Claude CodeCodex

Codex App Fast proxy and auth-split for third-party OpenAI-compatible APIs. Supports Sign in with ChatGPT, priority servicetier, Responses API benchmark, enable/check/update/uninstall.

not rated 34 3mo ago B 45 tokens original MIT

okf-harness-bootstrap

1834

pumblus/okf-harness

Skill Claude CodeCodex

This unified entrypoint routes setup and workspace maintenance without making the user choose a mode.

not rated 34 1mo ago A SkillSpector: warn 0 tokens original Apache-2.0

claude-api

1835

mlobo2012/Claude_Desktop_API_USE_VIA_MCP

MCP server Claude CodeCodexCursor +2

MCP server "claude-api" as configured in mlobo2012/ClaudeDesktopAPIUSEVIAMCP. Runs build/index.js with node. Needs 1 environment variable to run.

not rated 34 1y ago A tokens not measured

agent-readiness

1836

superduck-ai/agent-readiness

Skill Claude CodeCodex

Run a full 5-phase agent-readiness audit on the current repository — scan, discover apps, evaluate 82 criteria via parallel subagents, validate, and generate report + dashboard with persistent score history.

not rated 34 3mo ago A 44 tokens original MIT

openfusion

1838

hashangit/openfusion

Skill Claude CodeCodex

Use the OpenFusion fusion tool to get a consolidated council-of-models answer for a hard, high-stakes decision — code review/QA after implementing, debug root-cause from a dossier you gathered, research consolidation, architecture/plan review, or a second opinion. Do the groundwork yourself first (read, code, search…

not rated 34 yesterday A SkillSpector: pass 116 tokens original MIT

ralph-dev

1839

mylukin/ralph-dev

Plugin Claude Code

Bundles 7 skills, 5 commands · 177 tokens together

Autonomous end-to-end development system - from requirement to production-ready code with zero manual intervention.

not rated 34 3mo ago A tokens not measured

evals

1840

plurai-ai/plurai-plugins

Plugin Claude Code

Bundles 1 skill · 101 tokens together

Create fine-tuned LLM-as-a-judge evaluators from labeled data on the Plurai platform.

not rated 34 1mo ago A tokens not measured

adaptive-response

1842

devswha/oh-my-gajae-code

Skill Claude CodeCodex

A response-adjustment rule that changes explanation depth and format only when a specific approval-gate command is requested. It uses evidence from the current conversation to account for the reader’s role and familiarity.

not rated 34 26d ago A SkillSpector: pass 139 tokens original MIT

llm-agent-loop

1843

andrewsky-labs/zentrun

Cursor rule Cursor

An architecture guide for handling streamed responses from a large language model, especially when an agent can call tools during its repeated work cycle.

not rated 34 1y ago A 0 tokens

prompt

1844

saadshahd/moo.md

Command Claude Code

System instructions for writing effective prompts. Apply when generating commands, skills, agents, or any LLM instructions.

not rated 34 8d ago A 22 tokens original MIT

CodexClaw

1846

MackDing/CodexClaw

Skill Claude CodeCodex

Install and operate a Telegram bot that exposes Codex, MCP, GitHub subagents, repo switching, and minimal frontend dev-server control.

not rated 34 1mo ago A 33 tokens original MIT

nulnul-harness

1847

SeoNaRu/nulnul-harness

Plugin Claude Code

Bundles 1 skill · 47 tokens together

Complete project outcomes by selecting task-fit, evidence-backed capabilities, verifying the work, and removing only what does not materially help.

not rated 34 changed 3d ago A tokens not measured original MIT

akaszubski/autonomous-dev

Plugin Claude Code

Lists 1 plugin

PROJECT.md-first autonomous development with 22 specialized agents, 28 skills, and 66 automation hooks. Full SDLC automation via /implement command. Zero scope creep with automatic PROJECT.md validation. Works for Python, JavaScript, TypeScript, and Go projects.

not rated 34 today A tokens not measured

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: