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Runtime

Let all your team ship safely with coding agents

Runtime (runtm.com) gives engineering teams control and visibility to enable anyone in their org to use coding agents securely. Eng leaders rolling out coding agents have no way to see what's happening, set boundaries, or safely let non-engineers use them. We provide sandboxed environments, session-level observability, and configurable guardrails so anyone on your team can ship with coding agents without breaking prod. We're live with fast-growing YC scaleups empowering their Engineers, PMs, designers, marketers, and ops to contribute to their codebase or build prod-grade zero-to-one apps.
Active Founders
Gus Trigos
Gus Trigos
Founder
Building Runtime (http://runtm.com) | Prev. Mentum (YC S21, acqud.)
Company Launches
Runtime - Let your whole team ship safely with coding agents
See original launch post

Runtime (runtm.com) lets your whole team ship safely with any coding agent. It gives your team the guardrails, sandboxes, context, and visibility to go from idea to PR or deployment, with any model, on any infra.

Our coding agents set your repo environments automatically:

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You can use Runtime through our web interface:

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Or anyone on your team can trigger it from Slack, Linear, and many other connectors:

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Launch video:
https://www.youtube.com/watch?v=m3H8yUbdIHY

The problem

After my last company was acquired, I led our coding agents rollout and personally shipped 4+ full-stack products in the first 3 months. I then started enabling the rest of the team to do the same. But we hit a lot of friction fast: we needed to create working environments, we didn’t have any control or context to ensure agents contributed correctly, and nobody had visibility of what was being shipped. And because we'd gone deep on one provider's tooling, when their reliability dipped, the whole team slowed down.

Everyone rolling out coding agents across their team hits the same walls:

  • No environment setup: No easy way to give engineering and product teams production-like environments where agents can safely run.
  • No guardrails: No access controls, system instructions, or secrets management for agents.
  • No visibility: No way to see what agents are doing, what they're changing, or where things break.
  • Vendor lock-in: Go all-in on one model provider's agent infra and your whole team is exposed when reliability, pricing, or model quality shifts.

Without these, you end up either moving slower than your competition or causing major downtimes on your product.

What we built

Runtime sits between your team and the coding agents they use. It works with Claude Code, Codex, OpenCode, Gemini, Copilot, and others, and can be called programmatically or used through Slack, Linear, Jira, Asana, Teams, CLI, and more.


Here's what that looks like in practice:

  • Environment templates: Import any repo and set up a replica of your environments once. Our agents handle the setup for you, even for monorepos and microservices.
  • Sandboxed environments: Anyone on the team can spin up a sandbox in milliseconds with a live preview of your product, make changes with their preferred coding agent, and open a PR.
  • Configurable guardrails: System instructions, skills, allowlists, encrypted secrets, and role-based access control for both humans and agents.
  • Observability: See exactly what every human and agent is doing across every interaction, down to the tool call and chain of thought.
  • One-click deploys / PRs: Anyone can deploy from their sandbox. Coding agents auto-fix build errors and verify the deployment is healthy before it goes live. You control what gets deployed and can roll back or destroy deployments at any time.

Runtime can be fully self-hosted.

Check our product demo:

https://youtu.be/Gqdzfo7a8IM\


Asks

Use Runtime at your company. Sign up at app.runtm.com. If you're a CTO, head of platform, or eng / product leader rolling out coding agents, our team will personally set up your environments and help you set up best practices to your team is shipping within the first days.

Book a demo at https://cal.com/gustavo-trigos-q80bop/runtime-demo-meeting

Upvote this and connect with me to follow the journey:

YC Photos
Runtime
Founded:2026
Batch:Spring 2026
Team Size:3
Status:
Active
Location:San Francisco
Primary Partner:Aaron Epstein