Connect Xcode
You choose and allow Xcode’s CodingAssistant folder. SBB reads only inside the folder you selected.
Sanary Build BridgeSBB · AI Agent Judge for macOSOne AI checks
another AI’s work.
Every time a coding AI Agent finishes, SBB compares your original requirement with the result and judges it. Whether to move on, fix something, or decide yourself, SBB tells you on your Mac.
- CONTINUE
Requirement met. Fine to move on.
- FIX
Something to fix, with an instruction.
- HUMAN_REQUIRED
A person should decide.
01 / JUDGE
Ready to move on?
Three possible answers.
SBB evaluates an Agent’s result and returns one of three decisions.
- CONTINUECan continue
The requirement looks met. Nothing to do; move on to the next task.
- FIXNeeds a fix
A problem the Agent can fix itself. SBB includes a concrete next instruction.
- HUMAN_REQUIREDNeeds a person
A person needs to decide, and SBB tells you why. If SBB cannot judge, you get this result, never an approval.
A decision is there to help you decide. Whether to accept the work is still up to you.
02 / PRIVATE CLOUD COMPUTE
Judged on Apple
Private Cloud Compute.
SBB uses Apple’s Private Cloud Compute (PCC) to make its decision. What the decision needs is processed on PCC.
SBB does not send what it judges to Sanary’s servers. It uses no external service other than PCC, and it includes no analytics or crash-reporting SDK.
What goes to PCC
- Your original requirement
- The Agent’s result or completion report
- When available: the basis for the judgment, the paths of changed files, and build/test results
- Information about the working session
With Xcode hooks, this includes the full text of your prompt and the Agent’s last reply.
When PCC is not available
Using PCC requires macOS 27 or later, a Mac and region that support Apple Intelligence, and SBB being able to use PCC. When it cannot, SBB returns HUMAN_REQUIRED with the reason and sends nothing. It is never treated as approved.
03 / AGENTS
Right beside the Agents
you already use.
SBB receives the completion of Agents running in Xcode or VS Code. You set up each integration yourself, and only what you allow is covered.
| Environment | Agent | What SBB does |
|---|---|---|
| Xcode | Claude | Judges, and shows its status |
| Xcode | Codex | Judges, and shows its status |
| Xcode | Antigravity | Observes its status (working / idle) only. No Judge |
| VS Code | Claude Code / Codex | Judges, and shows its status (through the Sanary Build Interface extension) |
For Antigravity, SBB only observes whether it is working or idle. It never judges Antigravity’s results.
Connect VS Code
Install the VS Code extension and the connection is made automatically. If SBB is not running, your Agent still works as usual.
04 / NOTIFY
Results, right where you look.
SBB shows each result as a brief on-screen notification and in the menu bar. You can turn notifications on or off in Settings.
Sanary Build Remote (SBR) is a separate app that shows the status of the Mac running SBB on your iPhone.
05 / PRIVACY
On your Mac,
only what you allow.
App Sandbox
SBB runs inside the App Sandbox. It reads Xcode’s CodingAssistant folder only after you choose and allow it, and only inside that folder.
No helper, no relay
SBB uses no helper app and no relay server. It accepts requests from Agents only on this Mac (127.0.0.1).
Nothing goes to Sanary servers
What SBB judges is not sent to Sanary’s servers. PCC is the only thing used to make the decision.
Remote Access, only when you choose
Connections from SBR and similar apps (Remote Access) are off by default. When on, only devices you approve on your Mac can connect, on the same local network. This link uses HTTP and is not encrypted with TLS.
REQUIREMENTS
Requirements
SANARY BUILD BRIDGE
A second pair of eyes
for your AI’s work.
Sanary Build Bridge is being prepared for release on the Mac App Store.
Details after the Mac App Store releaseWe will announce it on this page after release.Claude and Claude Code are products of Anthropic, Codex of OpenAI, Antigravity of Google, Xcode of Apple Inc., and Visual Studio Code of Microsoft. Sanary Build Bridge is an independent Sanary product and is not affiliated with, endorsed by, or sponsored by any of these companies.