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Mainely Code — AI coding with receipts
Active pre-GA development
Mainely Code Buildroom

A software engineering cockpit built around scope, approval, verification, and proof.

Buildroom turns software requests into bounded work orders with target-repository binding, owned-file scope, explicit operator approval, candidate diffs, verification, proof bundles, and rollback-ready handoff.

Request Launch PackFree Repo Inspect
Mainely Code Buildroom development interface showing companion routing, target repository binding, work order approval, verification command, and proof-first execution controls
Current Buildroom development interfaceCompanion routing, scoped target repo, operator approval, verification command, and proof-first execution state.
Live interface direction

The operating state is visible before Buildroom is allowed to act.

The current UI exposes the selected engineering lane, target repository, proposed owned scope, verification command, approval state, transcript, and next safe action instead of collapsing everything into a generic chat window.

Scope before executionTarget repo and owned paths are visible and bound to the work order.
Operator approvalBuildroom waits for a real decision before applying changes.
Mode routingRaccoon, Lynx, Fisher, Black Bear, and Moose provide distinct engineering lanes.
Receipts in viewVerification, transcript, proof state, and safe next actions stay visible.
Workflow

Proof is not an afterthought. It is the product surface.

1

Inspect

Understand the repo, stack, risks, tests, likely scope, and first safe work order.

2

Scope

Define owned files, blocked files, acceptance checks, budget cap, and safe-stop rules.

3

Build

Create a candidate branch or patch without silently wandering across the repository.

4

Prove

Return the diff, check output, proof bundle, review summary, and rollback/resume path.

Built-in controls

  • Owned-file boundaries
  • Blocked-file enforcement
  • Preflight complexity estimate
  • Human approval before expansion
  • Proof bundle export
  • Safe-stop classification

Public launch boundaries

  • No claim of automatic production merges
  • No customer secrets requested through public forms
  • No unlimited autonomous coding promise
  • No hidden endorsement, partner, or customer relationship
  • No transfer of founder-owned private IP from website copy
Differentiation

Designed around the pain buyers already feel.

Teams do not just worry whether AI can write code. They worry about mystery changes, surprise costs, silent failure, privacy, and recovery. Buildroom turns those worries into explicit product controls.

Positioning line

Verified software work orders for teams that need code changes they can inspect, trust, and roll back.