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SAM Framework

Sparse API Monolith — work in a monorepo without downloading everything

What It Does

SAM gives Fortune 1000 engineering teams the monorepo velocity that only tech giants like Meta and Google could afford. Developers clone a massive monorepo in seconds, see every domain as a ghost folder, and hydrate only what they need — with full dependency resolution.

The experience: clone the repo, run sam setup, open Finder. The full directory tree appears at any nesting depth — container folders visible for navigation, leaf project folders dimmed. Double-click any folder — it hydrates with all subfolders, files, and resolved dependencies in one action. Push your code — sam impact shows the blast radius across the entire organization before it ships.

Key Features

🔀

Blobless Sparse Clone

git clone --filter=blob:none downloads tree structure without file contents. Full repo visibility in seconds, regardless of size.

📂

Nested Ghost Folders

Full directory tree visible in Finder at any depth. Container folders for navigation, leaf folders dimmed. Double-click to hydrate all subfolders and files. Configurable depth with --depth N.

🔍

Dependency Resolution

MonoGraph analyzes static imports across Go, TypeScript, Python, Java, and C#. Git co-change mining finds dependencies that code analysis misses.

💥

Impact Analysis

See which domains your changes affect before pushing. Risk levels, team ownership, and call frequency for every affected domain.

👥

Team Profiles

profiles.yaml defines which domains each team owns. Shared across the organization. One config file, team-wide consistency.

Watch & Auto-Hydrate

sam watch daemon monitors Finder navigation. Double-click any dimmed folder at any depth — all subfolders, files, and dependencies hydrate automatically. Parent folders become visible.

The Developer Flow

$ sam init git@company.com/enterprise-api # blobless clone Repository cloned (8 seconds) $ sam setup # ghost folders in Finder 193 domains — all visible as dimmed folders $ sam use --profile sales-api # hydrate your team's domains Profile 'sales-api' activated (4 domains + 11 deps) $ sam watch & # auto-hydrate on navigate Watching 178 ghost folders... $ sam impact # blast radius before push 1 critical, 3 high-risk domains affected $ sam dehydrate bigquery # free up space bigquery dehydrated

Who Is This For?

  • Engineering teams at Fortune 1000 companies with large monorepos
  • Platform teams managing hundreds of API domains in a single repository
  • Developers who want microservice speed with monorepo benefits
  • Organizations evaluating monorepo architecture for better code sharing

Architecture

         Terminal              Finder              VS Code
            |                    |                    |
         sam CLI            sam watch            MonoLens
            |                    |                    |
     ┌──────┴──────────────────┴────────────────────┘
     |              sam-core (Rust)
     └──────┬────────────┬────────────────┐
            |            |                |
      git sparse    profiles.yaml    MonoGraph
      checkout      workspace.yaml   daemon :7474
🏗️

Built 100% with Claude Code AI Agents

This framework was designed, directed, and shipped using Vibe Coding — organized thinking and 32 years of experience translated into production software by AI. No manual code editing required.

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