AI agents and agent tools

A Python engine that takes a starting piece of real information — a news item, a policy draft, a financial signal — and runs a simulated population of AI agents against it.

Give your AI coding agent the same engineering checks at every stage, from writing a spec to testing and shipping.

Install a ready-made routine so your AI coding agent plans before it builds, tests its changes and reviews its own work from a fresh context.

Agent Substrate is infrastructure software for running very large numbers of AI agent sandboxes efficiently, built on the observation that agent-like programs spend most of their time idle.

Stroq scans your recent Claude Code and Codex sessions for keys that left your machine.

Give it a website and get a prioritized SEO action plan, including AI search readiness.

ai-memory is a self-hosted memory server that lets more than twenty different coding-agent tools — Claude Code, Codex, Cursor, Gemini CLI and others — share one memory instead of each keeping its own that vanishes when you switch tools.

Get AI review comments pinned to specific lines of your Git changes before a colleague looks at them.

A local workspace that turns coding agents such as Claude Code, Codex, OpenCode or Cursor into research assistants: reviewing literature, proposing a hypothesis, changing code, launching an experiment and deciding what to try next.

Install Android-specific instructions so a coding agent can follow a workflow such as making an app edge-to-edge.

A local-first desktop app that gives each of your AI agents a character at its own workstation in a pixel-art space station, with the station's rooms and activity reflecting what the agents are actually doing.

Ask an AI agent to explore your codebase, plan changes and write code from your terminal or a desktop app.

ldraw-nova gives an AI agent the tools to design LEGO models from a written idea.

Anthropic’s coding agent for the terminal.

This is a collection of reference agents, skills and data connectors built for financial-services work — investment banking, equity research, private equity and wealth management — that plug into Claude as Cowork plugins or run through Anthropic's Managed Agents API.

Set up Claude to help with one job, such as sales, legal, finance or customer support, using that role’s tools and shortcuts.

Add ready-made instruction folders so Claude handles tasks like PDFs, slides and brand-styled documents the same way each time.

A complete book on building AI agents, published free and in the open by Bojie Li, organised around one formula: an agent is a language model plus context plus tools.

Jev Ultrafast is a browser-automation agent that completes a task like searching flights by reading the page, then asking Jev which button, field, or link to act on next — a decision that takes milliseconds instead of the seconds a normal chatbot needs to 'think' about it.

A set of pipelines that turn an AI coding assistant into a video production line: you describe the video you want in plain language and the agent researches the topic, writes a script, gathers or generates footage, cuts a timeline and renders the result.

Describe the diagram you want in ordinary words, and your AI agent creates a file you can open in a browser.

Hand web chores to your AI agent and it does them in its own workspace inside your browser, while you keep using yours.

An open-source coding agent available in five shapes from one engine: a VS Code extension, a JetBrains plugin, a terminal tool that also runs headless for automation, a desktop app, and a software development kit for building your own agents on top.

An open agent workspace that gives an AI chat access to your company’s context, then lets it create small apps — called gadgets — inside separate sandboxes.

A skill you install into an AI coding agent so that "audit this codebase" runs a structured hunt for vulnerabilities rather than one opinionated read.

A self-hosted platform that gives each developer a workspace running on infrastructure you control — a cloud virtual machine, a Kubernetes pod, a Docker container — described in Terraform so the setup is written down rather than assembled by hand.

Install ready-made skills so Claude Code, Cursor or Codex can make short videos, web pages and articles.

Give an AI coworker a job, connect the tools it needs and watch it work.

Give your AI coding agent ready-made marketing know-how for copywriting, SEO, ads and A/B tests.

Claude Code Templates is a catalog and installer for over 100 ready-made agents, custom commands, hooks and MCP integrations for Anthropic's Claude Code, browsable through an interactive web interface (aitmpl.com) or installed directly from a terminal command.

codebase-memory-mcp is an MCP server (a tool that plugs into AI coding assistants) that reads a codebase and builds a searchable knowledge graph of its functions, classes, call chains and cross-file links, so an agent can answer structural questions about the code in under a millisecond instead of reading files one at a time.

Ponytail is a plug-in skill that teaches AI coding assistants to write less code: the agent learns to prefer the shortest change that works — the project frames it as thinking "like the laziest senior dev in the room." The creator measured it on real Claude Code sessions across twelve feature tasks and reports about 54% less code on average (up to 94% where the agent would otherwise over-build, as with a date picker), roughly 20% lower cost and 27% faster runs, with every safety guard kept.

Turn Claude Code into an organized game team that plans, designs, codes and reviews your game with you.

Univer is an open-source software toolkit (SDK) for embedding spreadsheet, document and presentation editing into your own product, rather than a finished app you open.

Ask your coding agent for a part in plain words and get a STEP, STL, 3MF or GLB 3D model plus drawings.

Run an assistant with memory and browser, file, terminal, or desktop tools.

Open-source agent skills and a small CLI that help with newsjacking, pitches, journalist fit checks, and AI-visibility writing once installed into a supported agent.

Use Claude Code to inspect or change a running Unreal Editor through MCP tools.

Send requests to hosted, your-own-key, or local AI models through one gateway.

Run big open-weight AI models on your own gaming PC and chat with them.

Let a coding agent draw a big arrow with a sign over any Mac window to show you which button to click.

Review code, test in a real browser and ship code changes with typed commands in your coding agent.

Spec Kit gives your AI coding agent a step-by-step process to build a feature, fix a bug or assess an idea.

Type a task in plain English and watch an AI agent tap through apps on a real Android phone or emulator.

An add-on for AI coding assistants that maps code, docs, PDFs and images into a graph you can ask questions about instead of searching files.

Compress logs, tool output and files before they reach the AI model, so each request uses fewer tokens.

HyperFrames, from the video company HeyGen, turns a web page into a video file: you write HTML and CSS, add animations you can scrub along a timeline, and it renders a finished MP4.

CLI-Anything is a registry and toolkit for generating command-line interfaces that let AI agents operate software that was not originally built with agents in mind, from design tools to specialized desktop applications.

Read documents with page-by-page citations, practice daily and get video lessons from an AI tutor.

Point it at your AI agent and get a graded report of risky behavior, like misusing tools or leaking data.

Upload documents and ask questions with traceable citations.

Have an AI agent review screens, fix accessibility, refine type and colors, and build pages from designs.

A local voice studio that covers both halves of speech: going out and coming in.

Let an AI coding agent work on separate git branches inside an IDE, then review its changes and open a pull request.

A skill, plus an optional proxy, that makes an AI coding agent write in clipped fragments instead of full explanatory prose.

Add ready-made science skills so your AI agent can run genomics, chemistry or data analysis tasks properly.

A shell tool that puts a single agent — the first mate — in front of a crew of autonomous coding agents.

Audionaut is a free desktop audio editor for music, podcasts and multitrack recordings: cut audio into regions, arrange them in per-track playlists, add crossfades and export, without the weight of a full music studio app.

Lets developers have their coding agent design a landing page or dashboard with an art direction, real pictures and a browser check.

Let an AI agent fetch web pages as Markdown, search the web and automate browser tasks without installing Chrome.

A self-hosted chat application that puts a single interface in front of many model providers at once — OpenAI, Anthropic, Google, AWS, DeepSeek and others — so switching models does not mean switching product.

Open web pages without a screen, turn them into markdown or data, and drive them from scripts or an AI agent.

A free hands-on tutorial series on large language models, grown out of two courses at Shanghai Jiao Tong University on frontier language technology and AI security.

Claude How To teaches Claude Code with visual tutorials and copy-paste templates, for developers who have installed it and want working setups.

Handle email, team messages, docs, tasks, calls and customer contacts in one linked, searchable workspace with AI agents.

AI Job Search uses Claude Code to evaluate postings, tailor CVs, write cover letters, and prepare for interviews.

Hand tasks to an AI agent that runs on your own computer and uses your files and apps; for people who want one agent across Claude Code and Codex.

Matt Pocock’s own agent skills, straight from his .agents directory: small, composable skills for doing real engineering work with AI coding assistants rather than vibe coding.

A command-line tool for Git worktrees, aimed at people running several AI coding agents at once.

A self-hosted customer relationship system built around WhatsApp, with AI agents that answer, qualify and follow up on conversations inside it.

Route coding tasks into repeatable workflows for debugging, planning, refactoring, and more.

Learn how AI agents plan, call tools, remember context and work together, one lesson at a time.

Have tests, scripts or an AI agent open web pages, click, type and check results in Chromium, Firefox and WebKit.

Chat with a roster of AI bots that each have their own model, computer and apps, and approve risky actions.

A tool server that sits between a coding agent and the tools it calls, and keeps the bulky results out of the conversation.

Find language-model APIs with permanent free tiers and the page where each provider gives out keys.

An MCP server that lets AI agents and language models interact with native iOS and Android apps through one platform-agnostic interface — no separate iOS or Android expertise needed.

REA lets an AI assistant investigate an app, website, or program file and report what it finds with evidence.

A collection of ready-made AI personas: written instruction files (a persona is a character sheet that tells an AI how to behave) for specialists such as a front-end developer, a community writer, or someone who reality-checks your plan.

Multica is a project-management workspace where AI coding agents get assigned issues the same way a human teammate would: they pick up the work, comment on progress, raise blockers, and hand it back for review, all visible on the same board as your human team.

OpenRig turns a pile of AI coding-assistant windows into an organized team: you describe the team in a YAML settings file, start it with one command, and it runs Claude Code, Codex and Pi with roles, shared context and owned tasks.

A platform for building automations and AI agents by dragging steps onto a canvas and connecting them, with the option to drop into JavaScript or Python for the parts a visual editor handles badly.

Nasiko is a self-hosted control-plane server that sits in front of every AI agent you run and handles the operational questions that pile up once you have more than a couple: which agent is allowed to call which other agent, what did that call cost, and why did it fail.

Help AI agents answer questions about company databases using reviewed definitions and SQL, with each answer showing its steps.

OpenShell is NVIDIA’s open-source runtime for running AI agents safely: each agent gets an isolated workspace (a sandbox), and you write a policy saying what it may touch.

SkillSpector scans AI agent skills for vulnerabilities and malicious patterns, for developers who want to know whether a skill is safe before installing it.

Describe what you want to build and have your AI coding agent ask questions, agree a written design with you, and only then write code from a step-by-step plan with tests.

Ollama lets you choose an AI model and chat with it on your own computer.

OpenClaw is an open-source personal AI assistant that runs on your own computer and talks to you through the apps you already use — WhatsApp, iMessage, Discord, Telegram, Slack and twenty-plus others, with native apps for every platform.

Give Orkas a goal and its AI agents plan, research, write and build the work on your computer.

A desktop app that treats agent sessions as something worth version-controlling.

Let your AI assistant read web pages, YouTube subtitles, GitHub repositories, RSS feeds and, with your own logins, posts on X, Reddit and Xiaohongshu.

Paperclip is an open-source dashboard for hiring and running a whole team of AI agents toward one goal, like "build the #1 AI note-taking app to $1M MRR." You define the goal, assign roles such as CEO, engineers and marketers, and set a budget; the agents come from tools you already use — Claude Code, Codex, Cursor or OpenClaw — while Paperclip tracks status, cost and progress from one screen.

Learn to build AI apps through example projects, from reading text in images to chatting with your documents.

Impeccable is a design skill for AI coding agents that pushes back against the handful of visual habits (the same font, the same gradient, cards nested in cards) that show up on nearly every AI-generated interface.

PGX creates isolated, short-lived PostgreSQL-compatible databases for coding agents, CI jobs, pull requests and tests.

Follow and direct coding agents on your computer through web, desktop, and mobile interfaces.

Make Claude design screens and components that follow design rules and pass accessibility checks.

Compress older coding-agent messages into searchable summaries and restore exact context later.

An operating layer installed on top of Hermes Agent, the open agent from Nous Research.

This project pairs two AI systems to play Minecraft: a planning model (the creator's own 'Astra') decides the overall strategy, while Jev picks the moment-to-moment actions — movement, camera angle, item use — needed to carry it out, sent through the normal player controls rather than by editing the game's code.

Learn to build AI systems yourself, from the math behind models to retrieval pipelines and agents, by writing and running real code.

Add a layer to Claude Code or Codex that splits tasks across teams of specialized agents and remembers past work.

A desktop app that runs more than one AI coding agent at a time, each in its own separate copy of your project, so you can send the same request to all of them and keep the answer you like best.

Strands Agents is a software development kit (SDK) for building AI agents without writing your own agent loop (the code that lets a model plan, call tools and repeat) from scratch.

Treg is a marketplace and proxy for AI-agent tools such as SEO data, company lookups, scraping and image generation, with over 3,000 endpoints across 60-plus providers.

Send AI requests to one local server that routes across many providers' free tiers, for developers and coding-agent users who want to stack free quotas.

Have a team of AI agents research a stock and debate a trading decision.

A catalogue of skills — add-ons that teach an AI coding assistant a particular job — that the maintainers check before listing.

A command-line tool and browser extension that connect an AI coding agent to your everyday browser, so it can work on sites you are already logged into instead of needing its own test accounts.

You load in documents and it builds a knowledge base you can ask questions of in plain language, plus an agent that works through multi-step questions and a wiki it keeps updated as the documents change.

Octop is a self-hosted AI assistant that runs entirely on your own machine and gives each person in a household or small team their own set of specialized agents to switch between — one for weekly reports, one for scheduling, and so on — while keeping every conversation and credential local.

Share conversation memories, skills, documents, and code maps with AI agents.

A plugin that records what an AI coding agent did, turns those observations into searchable summaries, and brings the relevant decisions and fixes into a later session.

Let an AI model reply with live charts, forms and tables instead of plain text.

Turn a topic or document into slides, quizzes and discussions led by AI teachers.

A collection of open-source pieces for letting AI agents use a computer rather than an API: drivers that move the mouse and keyboard, isolated cloud desktops, local macOS virtual machines, small models trained to make computer-use decisions, and a benchmark for scoring how well an agent did.

Turn ideas, plans or repositories into interactive visuals with this assistant skill, for people explaining systems or organizing what they want to learn.

Test running apps for security flaws with this tool for developers and security teams, producing exploit evidence and repair guidance.

A desktop workspace built specifically for AI coding agents, rather than an agent bolted into an editor or a terminal.

Hindsight is a memory system for AI agents, built to notice patterns across many conversations rather than only replaying past ones the way a typical chat history or a RAG lookup (search over stored documents) does.

Give an AI agent a real browser it can control with short commands: open pages, read them, click and fill forms.

For developers building computer-use agents: agent-desktop lets an AI agent read and operate desktop apps on Mac, Windows or Linux from a command line.

Find and install reusable instructions for coding agents such as Claude Code, Codex, or Cursor, or create a skill for a repeated task.

Ask your coding agent to make a promo video for your product and get back a finished MP4 you can keep editing.

Weave Router sits between a coding agent (Claude Code, Codex, opencode, pi or Cursor) and the AI providers, and picks a model from your enabled providers for each request.

Install specialist helpers for code review, testing, security and Python or JavaScript work into your AI coding tool.

Let an AI coding assistant search your code, docs, logs and PDFs locally for the exact passage it needs.

WebCodex connects cloud-based AI chat tools like ChatGPT and Claude to a real development environment running on your own machine, so you can ask them to inspect a repository, modify code, run tests, use Git, or investigate a failure without moving your project into a hosted workspace first.

AutoClip is a desktop app that watches a long video — a podcast, stream or lecture — and automatically finds and cuts the moments worth sharing, using an AI model you connect (you choose the provider in settings).

CLM-v0.1-8B is an 8-billion-parameter model that scores choices, such as which action an AI agent should take next, instead of writing text.

Give a model up to a million tokens of text and images in one go, such as a long agent session or a large pile of input, and get text back.

Run an AI that thinks step by step and calls tools, on a laptop or your own server.

Chat with a small text model that can call tools and give structured answers, for developers building local agents or specialized apps.

Send a screenshot, chart or document and get a written explanation, or hand it a bug to fix.

Send text, images or video and get written answers.

A small language model — 2.5 billion parameters in a standard Llama-style architecture — built specifically for running on a device rather than in a data centre, with a 131,072-token context that is unusual at this size.

Run a 27-billion-parameter model that reads text, images and video and writes text back, on hardware you control.

An experimental preview of the architecture Alibaba intends to build its next model generation on, released with open weights.

Let an AI model investigate code, fix bugs, add features and write tests, for developers who host their own coding agents.

ZDTaichu5.0-9B is a 9-billion-parameter vision-language model, meaning it reads images, video and text together.

Run a small model on your own server that calls tools, writes code and follows instructions inside agent setups.

Run a compact language model on your own device for coding, tool-using agents and long inputs; for developers building on-device AI apps.

MiMo-V2.6-Distill-Qwen-9B is a 9-billion-parameter model made by fine-tuning Qwen3.5-9B on data generated by Xiaomi's larger MiMo-V2.6 models, a technique called distillation where a smaller model is trained to imitate a bigger one's outputs rather than being trained on raw internet text from scratch.

Give one model text, images, video or audio, with up to a million tokens of context such as a whole code repository or a long tool log, and get text back for coding and agent work.

MiMo-V2.6-Pro-RL is Xiaomi's flagship model in the MiMo-V2.6 family, reading and generating text, images, video and audio in one model with a 1-million-token context for handling large codebases or long multi-session agent work.

Run a language model that plans several steps, calls tools and works through long coding or research tasks, using a context of 256,000 tokens.