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Substructure
Slack agents your whole team can use, from one config file
Substructure runs AI agents in the cloud instead of on someone's laptop. Write a TOML file, run subs apply, and you have a Slack agent connected to MCP servers your team uses. Override any step of the agent loop with a webhook into your own system. Self-host it or let us run it.
Substructure is an engine for agents that run in the cloud instead of on a laptop.
It's not an SDK. It's a server that handles durability, streaming, MCP connections, LLM calls and connecting to channels like Slack.
You can override every single step of the agent loop by handling a webhook.
But you don't have to override anything, you don't even need to handle the webhook. You can define the agent in a TOML file and chat with your agent via Slack in minutes.
It's model neutral. Bring your own key, use whatever provider you want, switch later.
I use it every day for my own work. That's the main reason it's shaped the way it is.
Happy to answer anything. I'm most interested in hearing where the config model falls apart for what you'd want to build.
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About Substructure on Product Hunt
“Slack agents your whole team can use, from one config file”
Substructure was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #50 on the daily leaderboard. Substructure runs AI agents in the cloud instead of on someone's laptop. Write a TOML file, run subs apply, and you have a Slack agent connected to MCP servers your team uses. Override any step of the agent loop with a webhook into your own system. Self-host it or let us run it.
Substructure was featured in Slack (72.2k followers), Developer Tools (517.6k followers) and Artificial Intelligence (476.1k followers) on Product Hunt. Together, these topics include over 194.7k products, making this a competitive space to launch in.
Who hunted Substructure?
Substructure was hunted by Alex Wiles. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Alex Wiles