Open-source AI coding tools

A universal – local-first SQLite memory engine for AI CLIs

Engrim is a local-first, project-scoped memory engine for AI coding agents, stored in a single SQLite file. It lets developers switch between tools like Claude Code, Cursor, Codex CLI, GitHub Copilot CLI, OpenCode and Google Antigravity on

0 commentsY▲ 93 on HNCoding & Dev ToolsAI AgentsOpen Sourceby AI Launch Team

Same model, 12 harness configurations, up to 17.5x cost difference

FrontierHarness Eval compares coding-agent harnesses on identical software engineering tasks using the same model and runtime. Across 12 configurations of 9 harnesses, including Codex, Claude Code and OpenCode, pass rates were similar but c

0 commentsY▲ 82 on HNCoding & Dev ToolsResearch & DataOpen Sourceby AI Launch Team

Claude Code skills that turn your chess games into readable post-mortems

Claude Code skills that turn one of your chess games into a post-mortem you can read: plain-language explanations of your mistakes, checked against Stockfish, an annotated PGN, an HTML viewer and a narrated video. You can also record yourse

0 commentsY▲ 75 on HNCoding & Dev ToolsProductivityOpen Sourceby AI Launch Team

Turn one goal into an ordered plan of coding-agent tasks

Ordewell turns one goal into an editable plan of coding-agent tasks. A read-only planner researches your repository, asks about anything unclear, and returns a dependency graph where each task names its agent, model and thinking effort. Ind

0 commentsY▲ 56 on HNCoding & Dev ToolsAI AgentsOpen Sourceby AI Launch Team

DSL to turn agents into workflows

AgentRun (agent.run()) is a workflow language for the AI agents you already run. You define repeatable steps, use Jev for focused decisions, and call an agent only when the work needs investigation, while your app keeps its own tools, model

0 commentsY▲ 51 on HNAI AgentsCoding & Dev ToolsOpen Sourceby AI Launch Team

See every AI agent on your machine and what it can touch

Geiger is a read-only command that inventories every AI agent, harness, MCP server, plugin and AI extension on a machine, and explains in plain language what each one can touch. Run npx geiger-scan with no install, account or telemetry. Fi

0 commentsY▲ 49 on HNAI AgentsCoding & Dev ToolsOpen Sourceby AI Launch Team

Compiler-accurate Find Usages for coding agents

graphify-csharp is a free, headless Roslyn/MSBuild indexer that gives coding agents compiler-accurate Find Usages for C#. It turns a solution into deterministic semantic evidence: exact callers, references, implementations, inheritance, ove

0 commentsY▲ 46 on HNCoding & Dev ToolsOpen Sourceby AI Launch Team

Catch intent conflicts between parallel coding agents

Foremerge is an open-source coordination protocol for coding agents, built on top of Git. Agents keep isolated worktrees but share intent, semantic claims, dependencies and provisional changes, so each one sees what the others are about to

0 commentsY▲ 45 on HNCoding & Dev ToolsAI AgentsOpen Sourceby AI Launch Team

A langgraph based workflow with a C++ CUDA harness to optimize CUDA kernels

An agentic CUDA kernel optimizer that turns workload descriptions into GPU implementations through a loop of code generation, correctness checks, benchmarking and refinement. A LangGraph agent explores kernel code and launch configurations,

0 commentsY▲ 37 on HNCoding & Dev ToolsAI AgentsOpen Sourceby AI Launch Team

A scheduler for agents

Moadim is an open-source loop engine that runs AI agents on a schedule. Define a loop with a prompt, a schedule and an agent, and it runs Claude, Codex, Hermes or Pi against your repo on every tick, each run in an isolated workbench with a

0 commentsY▲ 37 on HNAI AgentsCoding & Dev ToolsOpen Sourceby AI Launch Team

Agent CLI framework – one grammar – canonical names across SaaS

aclif is a framework for building command-line tools that AI agents use to reach SaaS platforms. An agent gets one tool with one grammar and canonical names that reach the same record the same way on any platform, plus self-describing comma

0 commentsY▲ 35 on HNAI AgentsCoding & Dev ToolsOpen Sourceby AI Launch Team

2D Canvas for Agents

49 Agents is an open-source 2D agentic IDE: one zoomable canvas for all your agents, terminals, projects and machines. It shows Claude status on every pane, and adds a Monaco editor, git graph, issue tables, permission notifications and mar

0 commentsY▲ 18 on HNCoding & Dev ToolsAI AgentsOpen Sourceby AI Launch Team