Boost OS for Replit

Senior-dev instincts for Replit Agent

Replit is where a lot of people build their first real app, and Replit Agent will cheerfully build whatever you ask, including the wrong thing. Boost OS adds the checks a senior developer would run: /vibe before you ship, /cost before you commit to a vendor, /mobile before your users open it on a phone.

Everything installs as plain files inside your Repl's file tree. Replit doesn't expose an agent hook system, so the automatic guards stay dormant. The commands and project memory work in full, and every command speaks plain language, not engineer.

How it installs in Replit

Paste one prompt into Replit. No terminal.

Click the onboarding pill, paste one prompt into Replit Agent
The kernel installs to AGENTS.md at the root of your Repl
Commands install to .agents/skills/. Type /os to Replit Agent to see the menu
Project memory scaffolds in .agents/memory/ and persists with the Repl
Guards need host hook support, which Replit doesn't expose. Every command still works

Where Replit users start

The full menu

Every command below installs with that one prompt and appears in your Replit chat the moment you type the slash. Browse all 20 commands.

/os: list every Boost OS slash command available in this project, grouped by category
/cost: break down a feature or vendor across money, build time, learning curve, lock-in, and ongoing maintenance
/design: shape a vague feature idea into a plan you can hand to /preflight before any code gets written
/explain: translate the previous output into plain language for a non-coder
/next: draft 2-3 builder-friendly prompts you could send next, based on the recent chat
/spawn: fan a task into parallel subagents when the work has independent parts
/audit: find legacy and dead code in a bounded scope, then delete with per-file confirmation
/health: check production error logs for a service in your stack and surface a grouped report
/mobile: audit one screen for mobile readiness and hand back a numbered plan you can give to /preflight
/preflight: audit a plan against the existing codebase to catch drift, bloat, redundancy, and misalignment before you start coding
/security: pre-deploy safety sweep across secrets, env hygiene, dependency advisories, and risky API routes
/sync: sync the agent's knowledge of installed library versions so it stops writing against outdated APIs
/vibe: sanity-check your uncommitted work and tell you whether you're on track or about to ship a problem
/forget: delete a saved subsystem reference
/recall: read a saved subsystem reference and pull its contents into the current chat
/remember: capture what this session learned about a subsystem into a reference file
/new: build your own custom slash command for this project through a short conversation
/pause: turn off the always-on parts of Boost OS without removing anything; /resume brings them back
/resume: turn the always-on parts of Boost OS back on after a pause
/uninstall: cleanly remove Boost OS from the project, including managed skills, project memory, and references (your own commands stay)
/update: check for and install Boost OS updates from any AI chat: newer commands, kernel improvements, fixes
/whats-new: see what shipped since your installed version, without installing anything

Also works in

Install Boost OS in Replit today

Install it once. Your agent gets production code to build from, twenty-two commands that catch mistakes, and a memory of your project. One license, lifetime updates.

From $99 · 7-day refund · license key emailed instantly