Developer Tools AI Tools

A CLI-based mailbox and message bus for AI agents, with backends for GitHub, SQLite, S3, GCS, Postgres, and local storage. The repo also includes plugin support for Claude Code, Codex, and OpenCode.

An interactive site showcasing short AI-built arcade games and a model bench that compares coding models across the same tiny game constraints.

An MCP server for coding agents that generates media, renders videos and carousels deterministically, and creates draft-first social posts for review before publishing.

ClaudeLines is a registry for Claude Code status line scripts, letting users browse community-built bars and install them with a single prompt.

An open-source control plane for AI agents that adds policy enforcement, approval gates, durable execution, audit logs, and observability for unattended workflows.

A local CLI for replaying what AI coding agents accessed on your machine, including file reads, secrets that entered context, and possible read-then-network-call exposure paths. It also scans exported ChatGPT, Claude, and Gemini histories for sensitive data.

A Python package and CLI for checking how closely an AI-generated answer reuses its source text, with support for verbatim matching, subsequence matching, quotation verification, and pipeline gating.

A zero-dependency TypeScript music theory engine with scale, mode, key, and interval utilities, plus MCP server support for AI assistants.

A Python CLI and Claude Code skill for running Codex and Cursor coding agents as subagents, with fanout, model selection, sandbox controls, and remote execution support.

r3 is a local code review tool for AI-generated code and docs, with a browser UI, anchored feedback, and an agent loop for create/watch/reply workflows.

A local terminal UI for exploring AI coding spend across tools like OpenCode, Claude Code, Codex, GitHub Copilot, and more. It shows costs by month, day, project, session, and model, with drill-down views, heatmaps, exports, and a web browser mode.

Open-source runtime for coding agents that sits underneath Claude Code to reduce tool calls, shorten context, and track savings. The page includes installation steps, a local savings check, and benchmark results comparing cost and performance.

A desktop browser that hallucinates web pages on the fly with an LLM, including interactive apps and customizable “lenses” for different styles of generated sites.

GeoSQL is a Claude, Codex, and GitHub Copilot skill that turns general-purpose agents into geospatial analytics assistants for PostGIS, BigQuery, Snowflake, and Wherobots. It runs locally or self-hosted, supports map-in-the-loop analysis, and includes install commands plus an eval suite.

A free open-source Mac app that lets non-coders enable and manage Claude Cowork skills and personas through a switchboard-style UI.

Open-source telephony infrastructure for AI agents. AgentLine provides a REST API and MCP server for making and receiving phone calls, handling SMS, and storing transcripts, with Docker-based local setup and a hosted option.

Native Zig inference server for Apple Silicon Macs that runs local LLMs with MLX and GGUF support, plus OpenAI- and Anthropic-compatible APIs. The page highlights one-click local setup, Ollama compatibility, agent tools, MCP support, and performance claims against LM Studio.

SmolSignal is an AI signal copilot for Flipper Zero files. It explains common capture formats, classifies safety risk, supports local and cloud model backends, and can generate safe consumer IR files.

An MCP server that gives coding agents a compiler-backed graph of a TypeScript codebase, so they can answer structure questions with fewer tokens and exact file-and-line references.

A from-scratch ~1B parameter language model on Hugging Face with open weights, open data, training details, and loading guidance. The page is unusually candid about capabilities, limits, and evaluation.

A TypeScript library for deterministic context folding in long-running LLM agent sessions, designed to preserve prompts, avoid extra summarization calls, and keep provider caches hot.

Open-source AI SQL IDE for databases with a built-in AI data analyst, schema browser, notebook-based query runner, and persistent workspace state.

Open-source SDK and libraries for building local-first, peer-to-peer AI apps. It supports local LLM inference, embeddings, translation, transcription, TTS, OCR, image generation, and an OpenAI-compatible API across desktop and mobile platforms.

A Python library that transpiles stateful imperative LLM workflows into optimizable DSPy programs, with typed outputs, self-correction loops, validation reporting, and prompt tuning support.