Comparisons
Spec Kit, BMAD Method and ChatPRD help you write a spec. Hamster gives you the Brief and the Plan every agent builds from, whether you work alone or your whole team has a say.

A fixed command flow, in the repo
Spec Kit gives your coding agent a fixed order to work in, and it’s good at that. Hamster gives you the Brief and the Plan that agent builds from, and it still works when your PM, your designer and a second engineer need a say.
Read this if your team runs speckit and the second engineer just hit a merge conflict in a spec.

Agent roles and sized planning, in the repo
BMAD gives your coding agent product, architecture and dev roles and sizes the planning to the change, and it’s good at that. Hamster gives you the Brief and the Plan those agents build from, with owners who get notified and a tracker that matches.
Read this if you like BMAD’s discipline and want the PM and the designer in the loop without a git checkout.

An AI writer for product documents
ChatPRD turns a chat into a PRD and hands it off, and it’s good at that. Hamster keeps going: your team agrees on the Brief, a Plan comes out of it, and your agents build from it.
Read this if you write PRDs in ChatPRD and engineers rebuild the task list by hand in the tracker.
Your team agrees on one Brief, and every agent builds from its Plan. Free for 10 Briefs a month, then $40 per creator, viewers free.
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