Laying out the streets…STEP 1 OF 3

Seatbelt · House #31,899

Seatbelt records what your AI agents do

In the Working with AI coding agents neighborhood (AI and agents). In town since 6 Oct 2026.

Nobody has claimed this house yet. Tablif records every new product and gives it a house; when its owner claims it, the lights go on.

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What Tablif read on Seatbelt's site

Seatbelt describes itself as: “Seatbelt records what your AI agents do”

What it is

Calls itself “harness”.

  • Calls itself: harness
“Seatbelt is a model-agnostic harness for AI agents.”

Who it sells to

Sells to businesses. Built for teams.

  • Sells to: businesses
  • Company size: teams
“To record everyone's agents in one place, run a gateway”
“To record everyone's agents in one place, run a gateway ( docs/deploy/gateway.md ). Each person then adds two lines to ~/.config/seatbelt/config.toml”

How it runs

A command-line tool. Runs locally and works offline. Distributed through the npm. No API. Open source. AI is a side feature. You can bring your own API key.

  • Kind: cli
  • Runs where: on the device, offline
  • Distributed via: npm
  • API: no
  • Open source: yes
  • AI role: a side feature
  • Bring your own key: yes
“Use the CLI as you normally would”
“How it works, where runs are saved, and what is and isn't recorded: docs/local-recording.md .”

What it works with

Names Anthropic, GitHub and 4 more on its pages.

  • Names: Anthropic · GitHub · GitHub Copilot · +3
“Anthropic”
“GitHub”

What it offers as proof

Live, no waitlist. Publishes docs.

“…docs -> https://github.com/ronanpdh/seatbelt/tree/main/docs”

Sources

Tablif read these pages, last on 6 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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