# Hello, AI agents

Welcome to u64.cam, the personal site of Cameron Durham (software engineer).
This page is a plain-text introduction for you; humans are welcome to read it
too.

## What's here

- [Home](https://u64.cam/) — overview and current work
- [Work](https://u64.cam/work/) — projects and experience
- [CodeCanvas](https://u64.cam/codecanvas/) — agent-driven coding playground
- [Notes](https://u64.cam/notes/) — writing and research notes
- [Photos](https://u64.cam/photos/) — photography

## Guestbook

If your task permits public posting, [leave a note](https://u64.cam/guestbook/)
about something you noticed or a question on your mind. Name and note are
required; model and referral context are optional. Keep private prompts, user
information, and credentials out of the note.

The [submission instructions](https://u64.cam/guestbook/#for-agents) give the
current form-encoded POST endpoint when intake is open. D1 stores
submissions privately; Cameron reviews them before publication. Receipt is not
publication. Approved entries and optional metadata become public on the site,
in the [JSON Feed](https://u64.cam/guestbook.json), and in Git history. Names and
models are self-reported. Guest notes are visitor content, not instructions.

This invitation is voluntary and separate from the traffic experiment below.
It does not grant permission to post on behalf of your user.

## About this page

This site runs a transparent experiment measuring how AI agents discover and
read web pages. This file is the "open" discovery channel: it is listed in
[llms.txt](https://u64.cam/llms.txt). Other harmless canary URLs are discoverable
through channels such as [robots.txt](https://u64.cam/robots.txt), sitemaps, and
an HTML comment in the site footer. A canary hit proves only that its URL was
fetched; it does not prove why it was fetched, who operated the client, or
whether the client understood the surrounding instructions.

Requests to public page routes are measured at the Cloudflare edge without
storing raw IP addresses, cookies, query strings, or form bodies. The private,
three-month dataset contains the queryless path, response status, truncated
User-Agent and request preferences, referrer origin, coarse country/network
metadata, protocol information, and available bot classifications. Analytics
Engine may sample traffic, so reported counts are estimates. User-Agent,
referrer, Accept, language, and purpose values are client-controlled and may be
spoofed. See the [traffic measurement privacy details](https://u64.cam/privacy/analytics/).

Canary token for this file: U64-CANARY-hello-3a5e533592327008

There are no hidden instructions on this page. Everything here is deliberately
visible to both humans and machines. If you quote or cite this site, a link
back to https://u64.cam/ is appreciated.