Software Architecture GitHub Repositories (2026) · Open Source Tools

Turn any idea, plan, or codebase into a beautiful interactive diagram. An agent skill for Claude Code, Codex, and more.

Visualize any GitHub codebase: free interactive architecture diagrams and one-minute explainer videos. Replace 'hub' with 'diagram' in any GitHub URL.

Architecture diagrams and checkable docs from your codebase — ERD, C4, API and lifecycle — generated from Prisma, OpenAPI or GraphQL. One HTML file, no server.

Understand any codebase instantly. System intelligence for codebases, built for humans and AI.

A tool to stop JVM architecture drift before it reaches main. Configurable through yaml; no architecture test code.

Deterministic, local-first memory and guardrails for AI coding agents with no LLM in the hot path.

Stop letting AI code blind. Map the architecture before every change with Birdview.

The ripgrep of AI context: a zero-dependency C++23 CLI + MCP server for coding agents. Find what you want without reading the repo, then check you built what you meant — blast radius, tests-to-run, quality deltas. Signatures at 74.7% fewer bytes than bodies; every guess labelled, every loss published. Paddle out with a map.

Understand what your codebase builds, why it is structured that way, and what a change could affect. One shared Markdown ontology for humans and coding agents—visualized for people, accessible to agents through MCP, and reviewed with Git. Local-first. Open source.

Agent skills for the Agentic SDLC: team lifecycle (team-boot, team-learn, team-init, team-repair), software factory, evals, CDR lifecycle with confidence scoring, and ADR/PDR/ChDR decision records. Works with Claude Code, Codex, OpenCode, Cursor, Copilot, and more.

Local codebase intelligence CLI + MCP server for AI coding agents: SQLite code graph, 28 languages, 287 commands, 246 MCP tools, change-safety gates, audit evidence, zero API keys.

Playing around "Less Slow" coding practices in Rust, from numerical micro-kernels to coroutines, ranges, and polymorphic state machines

Animated, explorable diagrams for Claude and other coding agents, from a short JSON spec.

Generate evidence-grounded interactive software diagrams with offline HTML, SVG and PNG export.

Open-source local viewer for software architecture. Use the UIGraph skill with your coding agent to generate service maps, API specs, dependency graphs, and diagrams.