Matheus Brehm Barni

Compozy is an open-source operating system for AI agents. It gives developers a single environment to create, automate, and supervise agent work using the CLIs they already use, including Claude Code. Sessions, loops, approvals, and task runs belong to the runtime, so work can continue outside a single terminal.

I contributed as an open-source engineer on the task runner and operator UX. I added multi-task run support and worktree-backed parallel runs so several tasks could execute at once without colliding. I also shipped provider-neutral ACP speed control, recovered stalled and wedged multi-runs, restored TUI elapsed timers across retry, failure, cancel, and remote paths, and fixed Claude model pinning plus zsh task completion so operators could run and complete tasks more reliably from the CLI.

Idle Manager is a desktop multi-session browser for idle-game operators. A normal browser cannot keep two live logins from the same origin separate because cookies, localStorage, and service workers share a single storage space. This app tiles isolated Chromium sessions in one window, so several accounts of the same game can stay logged in without mixing state.

I designed and built the product end-to-end in Electron and React. The chrome is React; each running account is a native WebContentsView bound to a persistent partition. I implemented tab and account layouts; per-account mute, zoom, and reload; live CPU and RAM in the sidebar; workspace import/export of names and URLs only; optional safeStorage encryption; keyboard shortcuts; and PT/EN. I also added an isolation test that proves two partitions do not share cookies or localStorage, and I ship Windows, macOS, and Linux installers through GitHub Actions. The app does not automate gameplay or inject cheats.

Spec Finder is a skill-driven specification framework with a local ACP cockpit. It runs a compact pipeline without a daemon or a second source of truth. Specs live in the repo. Claude, Codex, Cursor, Grok Build, and Pi run through their own ACP harnesses while Spec Finder owns task ordering, lifecycle state, permissions, and evidence reports.

I designed and built the product as a Bun/TypeScript CLI and published it on npm. I implemented the setup across five ACP providers, a read-only cockpit for provider configuration, task graph, and tool calls, one ACP session per task, so implementation and the final report share context, serial fail-fast batch runs, local recovery checkpoints that never push, and an optional TDD pack for red-before-green work. Skills stay portable, and the framework does not install provider binaries or store credentials.