Ash – OSS Infra for Running Claude Agent SDK
Handles agent persistence, sandboxing, streaming—infra devs were rebuilding every time.

Guardrailed sandbox sessions beat Loombloom with AI operator walkthrough modes.
Founders, DevRel teams, sales engineers, user researchers
Loombloom · Navattic · Console
Try it here: https://www.makeportals.com/try
Instead of asking someone to sign up, install software, or book a demo for user research, onboarding, or sales, you send a link and they interact with the real product in a sandboxed browser environment, then you get session replays.
Each viewer gets a fresh remote browser instance that starts from a defined state (URL, cookies, extensions, local files, etc). Sessions are isolated and expire automatically.
The sessions have configurable guardrails: - disabling buttons - restricting URLs - API rate limits - Time limits
In Watch Mode, an AI Agent with contextual awareness clicks through a demo and explains the product. In Play Mode, users explore a guardrailed session while the AI answers questions.
Portal came from trying to get feedback on a chrome extension I’d built to help people with disabilities control gmail with voice. People were cautious to download it & I kept wishing I could send a browser session with the extension already installed to try safely & an AI to explain async.
Portal grew out of that idea: share an exact browser state where your product works without requiring installs or already logged into demo accounts.
Some early uses: - Getting user feedback on local projects in Claude Code with a temporary links/rate limits - Helping onboard to high friction/integration products like extension/add-ons or code reviewers - Replacing inbound product demos in sales for SMBs by embedding on landing pages or sending to prospects with the AI agent self-serve created - Ending live presentations with a QR code open to a live product environment - PMs sharing prototype links for feedback in slack
Docs: https://www.makeportals.com/docs/mcp Try in Claude Code: claude mcp add --transport http portal https://mcp-portal-sogv.onrender.com/mcp OpenClaw: https://clawhub.ai/Zach213/portal
Curious about the browser sessions you’d want to share w/ an AI guide- we’re improving latency of interaction every week & think stateful URLs/shareable product states are the future. Love any feedback as we're early!
Handles agent persistence, sandboxing, streaming—infra devs were rebuilding every time.
Colosseum theme is fun, but it's just a voting gallery with Roman aesthetics.
Turns any Linux laptop into a curl-able IoT pentest lab with per-query DNS logging.
Embedded Rust sandbox with seccomp and DNS rebinding protection, no VM required.
direnv auto-activation with bubblewrap sandboxing isolates agents per project.
Open-source alternative to Navattic for creating interactive product demos.