hussh

Thursday, August 27, 2026105 posts

hussh notes

Latest

Engineering notes, team posts and everything that isn't a product update, research or a founder's note.

  • The protocol (PCHP)

    Every Scope Resolves Now: A Systems Review of the Consent Fabric

    A full engineering accounting of PCHP and the fabric that serves it: the registry's growth from 47 to 263 scopes, the resolver that went from 8 hand-mapped bindings to resolution by convention, the pseudonym fix that stopped telling subscribers who you are, the economics of a millicent handshake, and a plain ledger of everything that is still not real.

  • Engineering

    Everything That Broke Was Already Written

    A systems engineering reflection on one night of shipping, in which every defect turned out to be correct code wired to nothing, and what that says about building software when an agent writes forty four percent of the commits.

  • Building in the open

    We Did Not Invent Our All-Hands

    A thank-you to Gokul Rajaram, with the receipts. What we took from his write-up on running an all-hands unchanged, the four things we changed and why those changes are ours rather than his advice, and the honest note that we are building an agent to do the chief-of-staff job precisely so we never hire an operations team.

Product updates

Launches and what shipped.

Research

Papers, formal models and open problems, including the ones we haven't solved.

  • Research

    The smallest machine that completes the job wins

    The complete token-per-watt research note on Apple M6, M5 Pro, M5 Max, and M5 Ultra for private agentic AI: the roofline, pre-ship decode estimates marked as estimates, best bang for the buck, and the PuppyBench protocol.

Guides

Written guides and key documents: how to use hussh, sell it and build on it.

  • Field guide

    The Field Bible

    The seller and trainer guide to Agent One, Puppy One and Tag One: know the products cold, how to explain them, and what not to promise.

  • Builders

    Build with AI: a field guide

    How to build apps, APIs and agents on One, with PCHP consent and the open agent rails, in plain English.

  • Getting started

    Get started with Agent One

    Install it on your phone and your other devices, set it up the way you like, and put it to work in minutes.

Founder's notes

Essays by Manish Sainani.

  • Manish Sainani

    The Last Mile Is a Human Being

    Answer engines have gotten extraordinarily good at answering. They have not gotten any better at being responsible for the answer. That gap is a person, and it is the most valuable unbuilt thing on the internet.

  • Manish Sainani

    We Measured the Data Before We Built the Product, and the Data Said No

    A week of findings from our own codebase. A corpus that would have invented lawyers who do not exist, a postcode range that would have moved a town, and three comments that described behaviour nothing enforced.

  • Manish Sainani

    Ask Them. Ask Them Every Time.

    Steve Jobs described the whole of privacy in about forty seconds in 2010, and nobody built it. This is what a human-first subscription to your own information looks like if you take him literally - including the parts that are harder than they sound.