@mattpocockuk: Putting in a ton of work into Sandcastle v1. Going to reshape it a lot. How does this sound as a pitch: - Sandcastle he…

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Summary

Matt Pocock is working on Sandcastle v1, a 'software factory' tool that integrates AI coding harnesses like Claude Code and Codex with sandbox providers, HITL support, and his skills repo converted into callable Agent() functions.

Putting in a ton of work into Sandcastle v1. Going to reshape it a lot. How does this sound as a pitch: - Sandcastle helps you build your software factory - Use our 6 built-in harnesses (Claude Code, Codex, etc) or your own - Integrates with all the top Sandbox providers (Daytona, Vercel, E2B, etc) - Ships with templates to work with Inngest/Trigger.dev for a durable factory - Support for HITL (over Slack and Discord) as well as AFK runs And one more thing... - Every skill in my repo becomes an Agent(), a function you can invoke to get that workflow - CodeReview(), ImplementSpec(), Retro(), ImproveCodebaseArchitecture() So effectively, you just plug my skills into infrastructure you provision, into services you already use. A software factory running on your infra with opinionated, mattpocock/skills-based defaults but infinitely extensible. WDYT?
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Cached at: 11/01/26, 09:50 AM

Putting in a ton of work into Sandcastle v1. Going to reshape it a lot.

How does this sound as a pitch:

  • Sandcastle helps you build your software factory
  • Use our 6 built-in harnesses (Claude Code, Codex, etc) or your own
  • Integrates with all the top Sandbox providers (Daytona, Vercel, E2B, etc)
  • Ships with templates to work with Inngest/Trigger.dev for a durable factory
  • Support for HITL (over Slack and Discord) as well as AFK runs

And one more thing…

  • Every skill in my repo becomes an Agent(), a function you can invoke to get that workflow
  • CodeReview(), ImplementSpec(), Retro(), ImproveCodebaseArchitecture()

So effectively, you just plug my skills into infrastructure you provision, into services you already use.

A software factory running on your infra with opinionated, mattpocock/skills-based defaults but infinitely extensible.

WDYT?

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mattpocock/skills

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This open-source repository provides a composable set of AI agent skills and prompts designed to improve alignment, reduce verbosity, and optimize workflows for coding assistants like Claude Code and Codex.