Claude Code Open Source Tools
Claude Code is a terminal-based AI coding assistant that helps developers understand codebases, make changes, run commands, and work through software tasks using natural language. It can reduce repetitive work and help navigate unfamiliar projects, while keeping development activity close to the files, tools, and workflows developers already use. Human review remains important, especially for changes that affect security, reliability, or production systems.
Open source tools in this area include extensions, agent skills, workflow automation, integrations, setup utilities, and learning resources. When choosing one, check its license, maintenance activity, compatibility with your environment, required permissions, and how it handles credentials and data. Consider whether its integrations fit your existing tools and whether its behavior is easy to inspect and control. These resources can help individual developers and teams customize coding workflows, learn agentic development, or connect coding assistance to broader engineering processes.
45 repositories · updated October 14, 2026
RLM: Process Large Documents in LLM-Sized Chunks
RLM is a .NET CLI for breaking large documents into manageable chunks, processing them across multiple turns, and combining the results. It suits developers using Claude Code or scripts to work with content that exceeds an LLM's context window.
QuietHealth 25/100
agent-worktrees: Manage Claude Agents Across Git Worktrees
A VS Code extension for starting and monitoring Claude Code agents in isolated Git worktrees. It brings agent status, worktree Git state, and optional GitHub pull request checks into one panel.
NewHealth 49/100
web-design: Create Consistent Web Pages with a Claude Code Skill
web-design is a Claude Code skill that turns product briefs, reference URLs, or screenshots into an editable design specification before generating web code. It is suited to developers and designers who want a repeatable, spec-led workflow for building consistent pages.
QuietHealth 19/100
i-have-adhd: Make Coding Assistant Responses Easier to Scan
i-have-adhd is a skill for coding assistants that makes replies more direct and easier to act on. It suits people who prefer numbered steps, concise answers, and a clear next action without extra preamble or tangents.
NewHealth 59/100
skills: Improve Interfaces with Agent Skills
A collection of agent skills for improving interface design, covering UI, typography, color, accessibility, layout, and product writing. Useful for designers and developers who want targeted reviews and iteration support inside an AI-assisted workflow.
NewHealth 48/100
agentic-engineering: Give Coding Agents a Persistent Project Workflow
A documentation-first skill suite for coding agents, covering project specs, decisions, session memory, verification, and Git workflow. It suits teams running multi-session development who want agents to follow explicit contracts and leave merges to humans.
QuietHealth 25/100
aiwg: Reuse AI Workflows Across Coding Tools
AIWG deploys reusable project context, specialist agents, and structured workflows to multiple AI coding tools. It helps individuals and teams carry decisions, reviews, and procedures across tasks and sessions.
ActiveHealth 61/100
ctx-gate: Reduce LLM Context Tokens Through a Proxy
ctx-gate is a Python proxy that compresses LLM conversation context while aiming to preserve facts relevant to the current prompt. It supports Anthropic and OpenAI-compatible APIs, with evaluation tools to check retention and token savings.
NewHealth 20/100
cc-polymath: Discover Context-Efficient Claude Code Skills
cc-polymath is a large catalog of focused development skills for Claude Code, organized for progressive discovery. It helps developers load relevant guidance on demand instead of filling the context window with a monolithic reference.
QuietHealth 22/100
agent-plugins: Install Curated AI Coding Assistant Bundles
agent-plugins packages curated skills, MCP servers, and specialist agents into category-based plugins for VS Code, GitHub Copilot CLI, and Claude Code. It suits developers who want reusable assistant capabilities without assembling each integration themselves.
NewHealth 72/100
tessera: Organize AI Coding Sessions Across Projects
Tessera is a local workspace for coordinating Claude Code, Codex, and OpenCode sessions across projects. It brings parallel agent tasks, Git worktrees, session views, and Git workflows together for developers running coding agents on their own machines.
NewHealth 68/100
bux: Run a Persistent Browser Automation Agent on Your Server
bux runs Claude Code as an always-on agent with a persistent Chromium browser, Browser Use Cloud, and optional Telegram access. It is for people who want browser tasks available from a VPS or other Ubuntu machine.
NewHealth 36/100