TECHNOLOGY / SOLACE HARNESS / WAITLIST

Build on
the harness.

The Solace Harness is the technology behind Silhouette: its agent loop, tools and safety checks. Developer access is planned.

Join the waitlist ↗

YOUR APP / YOUR MODEL

SOLACE HARNESS

+ Talker and worker
+ Tool servers
+ One checkpoint
+ Completion check
+ Procedures
+ Screens of its own
+ Journal

ANDROID / YOUR DEVICE

The harness. The talker answers or dispatches without touching the phone. Workers pass every tool call through one checkpoint. Read-only checking, procedures and a swappable model support each run.

MODULE 01

Talker and worker

A fast talking half answers or dispatches; working halves do the tapping. The talker cannot touch the phone.

MODULE 02

Tool servers

30+ servers speaking one protocol (MCP), well over a hundred tools: screen, apps, messages, calendar, web, files, Linux.

MODULE 03

One checkpoint

Every tool call passes one host, where the recipient guard and the safety rules sit.

MODULE 04

Completion check

A read-only pass grades each requirement with evidence, up to three rounds.

MODULE 05

Procedures

Replays work that has been figured out, and refuses a procedure that only looks right.

MODULE 06

Screens of its own

Trusted virtual displays, made on the phone itself with no computer.

MODULE 07

Journal

Every tool call and result is recorded per run, so a claim can be checked against what happened.

Your model.
Our boundaries.

For app developers, device makers and researchers. The public API and release timing are not finalized.

// Illustrative architecture — not a released API
const harness = new SolaceHarness({
  model: yourModel,
  tools: approvedTools,
  guards: yourPolicy,
  completionCheck: 'read-only',
});

await harness.run(userRequest);

ILLUSTRATIVE / API NOT FINAL

PLATFORM / EARLY ACCESS

What would
you build?

Tell us the use case. We’ll contact you when the harness is ready for developers.

Build onthe harness.