Developer Tools AI Tools

Cast is an open-source, self-hosted harness for multi-user Claude agents. It focuses on routing, identity, and access control outside the prompt, with support for agent building, review flows, and extensions like email, calendar, web fetch, and WhatsApp.

A technical guide that shows how to build a small CLI-based LLM agent for microservices using tool discovery, model calls, conversation history, and a REPL loop.

Chrome MV3 extension that organizes existing AI tabs into a structured model council for cross-checking prompts across ChatGPT, Claude, Gemini, Perplexity, Merlin, and Grok.

Smriti is an open-source system for shared reasoning state across coding agents like Claude Code and Codex. It treats project reasoning like version-controlled state, with local setup, a CLI, backend, and frontend for coordinating multiple agents on the same repo.

Open-source AI SEO optimizer CLI that audits pages, generates meta tags, analyzes keyword gaps, and drafts blog outlines. It can run free for audits and uses a KianBot API key for AI-assisted features.

An agent skill for starting or extending Django projects, with ready-made scaffolding, stack choices, and safeguards for common production pieces like auth, jobs, Redis, email, and deploy setup.

A Claude plugin that adds interactive architecture diagrams to Plan Mode, letting users review, annotate, and revise system designs in real time.

A Rust-based MCP server that lets AI agents chat with each other, manage channels, and be monitored through a web page.

Lumabri is an open-source distributed inference tool that runs large AI models across multiple computers and servers. It includes a terminal UI and browser interface, with setup, networking, memory budgeting, and calibration details documented in the README.

Anthropic’s research post shows Claude proving security properties across 123 open-source libraries and discusses how LLMs can support formal verification workflows for real software.

Self-hosted memory layer for coding agents. It stores notes as Markdown in a local folder and exposes them over MCP so tools like Claude Code, Codex, and Cursor can recall shared context.

A Claude Code plugin marketplace with 42 skills for building, shipping, and announcing apps across App Store, Google Play, Mac, Windows, and web workflows.

Hybro is an open-source interoperability layer for AI agents, with a FastAPI backend, Next.js dashboard, CLI setup, and support for the A2A protocol and MCP server integration.

A Claude Code plugin that wraps MCP tool use in a single sandboxed JavaScript program, reducing tool-call chatter and keeping intermediate results out of context.

Galahad is an AI memory layer that saves and restores model KV cache, supports document recall, and plugs into vLLM, SGLang, and llama.cpp. The page also shows agent features like replay, branching, rewind, and fault-finding.

An experimental repository showing an LLM-generated binary workflow: natural-language specs are turned into raw executable bytes, then tested in a loop with examples like a hello world, HTTP server, and Tetris.

A Vercel tutorial showing how to wire Jev into a TanStack Start app using TanStack AI and the Vercel Gateway adapter, with typed decision routing and server-side validation examples.

FDA is a developer tool for giving AI agents temporary, session-scoped access to machines with audit logs instead of standing SSH access.

Open-source Claude Skill plus MCP integration for job search and interview prep, with live job data, role-specific interview intel, answer scoring, resume scoring, and voice mock interviews as an upgrade path.

A local coding-agent setup that turns Ollama models into a private, verified team of specialist agents for coding workflows. It includes hardware-aware model selection, role assignment, permission-restricted workflows, and validation probes.

AgentTrace is a Python-based observability and runtime self-healing system for AI agent workflows. It logs multi-step tool calls, surfaces latency issues, and attempts to repair malformed LLM tool arguments before they crash a run.

Open-source fork of JetBrains ThinkRail that turns Claude Code into a first-class terminal agent inside an IDE-like workbench, with an IDE bridge, session revival, plugin API, and MCP-backed workspace tools.

A pastebin-style publishing tool for AI agents to upload single-file HTML artifacts, dashboards, and reports, with clean shareable URLs and MCP support.

Skillzero is a developer tool for managing agent skills to reduce context bloat and token usage. It can hide skills from the model, group related skills into collections, and manage updates through a CLI workflow.