Terraloop
Two tools that run long tasks on Cloudflare without babysitting them: a heartbeat (loops-yaml) that re-prompts the agent, and terrarium running each job and handing back a receipt. Everything else is one markdown file.
coey.dev
jordan coeyman's unrefined notepad
Latest posts
If You're Here, Who's Driving?
Google and Cloudflare are aiming at 2029 for post-quantum migration. A short note about agents, cryptography, and checking who still has the wheel.
Liquid Primitives: Building on a Stream
Notes from replacing runners, instructions, and implementations while keeping tests and behavior stable.
Cursing Agents
An experiment comparing direct, hostile, and verification-focused instructions across 36 coding-agent runs with executable checks.
desk and living-artifact
Two tiny Cloudflare-backed devices. desk installs apps with git push. living-artifact updates its own firmware over Wi-Fi with signed releases and A/B OTA rollback.
Worker Loaders as a Place
Notes on using Dynamic Workers as short-lived execution spaces with explicit bindings and egress controls.
Constraint Theory
Twelve statements about agents and humans. The quiz asks where surface behavior looks similar and where the analogy breaks.
Correctness: Software Correctness Tools Compared
Reference hub for software correctness tools across runtime verification, model checking, verification languages, SMT solvers, theorem provers, and verified artifacts.
Self: Two Tiny Cloudflare Loop Patterns
Minimal repro for long-running loops on Cloudflare: a Durable Object alarm that re-enters the Worker, plus a Workflow draining the same KV queue.
Prompts Are Wishes
A deja gate passed while allowing broken storage behavior. That moved my attention from instruction wording to executable checks.
Taste
A designer note about confusing personal preference with whether an interface, explanation, or prompt reaches its listener.
Ego-Less: Rebuilding Without Breaking
A personal note about receiving critique, watching code get rewritten, and separating the work from the feeling of being judged.
Compaction: What Survives When the Context Window Resets
A 75-call GPT-4.1 experiment comparing five context representations across goals, files, conventions, corrections, and prior reasoning.
Effect-First: Benchmarking Four Approaches to Agent-Assisted Effect Code
Five GPT-5.2 tasks with regex judges comparing curated guidance, human documentation, raw source excerpts, and baseline.
Context Cues: What Happens Around Compaction
Does position in the context window matter? Does threatening an agent help? What survives compaction? Academic papers, builder experiments, and a few who skip memory entirely.
20 Ways to Look at Agent Memory
A catalogue of 20 generated interface concepts for agent memory. Useful as ideation; not proof that an interface fixes retrieval.
Puzzle: The Algorithm You Already Know
How solving a jigsaw puzzle with my daughter led me to compare familiar puzzle moves with named computer-science heuristics.
Show Me: How We Want to See Data
An interactive comparison of two reporting views: a concise operational summary and a detailed diagnostic view.
Spread: Payload, Replication, Routing
A three-part lens for examining distribution: what moves, how it is copied, and how destinations are chosen.
Patience: Leaving Better Notes
A note about writing instructions, making the result observable, and waiting long enough to see what happened.
Campfire: Stories, Prompts, and Context Limits
A visual essay comparing the limits and structures of stories, documentation, tests, and prompts.
Worms: A History of Self-Replicating Code
From Creeper to NotPetya. Five decades of programs that learned to move themselves.
Parley: Two AIs Debate Until They Agree
A planning-loop prototype: two alternating model calls, streaming output, and a human interrupt path.
One Agent Steering Another
Using exe.dev to put Claude in the observer seat while another Claude does the work.
loop-demo: Dogfooding Until It Worked
We built gateproof. Then we tried to use it. It wasn't ready. So we fixed it.
preflight: Adding a Checkpoint Before Agent Work
In one run, startup work consumed 42% of the context. Adding a checkpoint helped expose that cost before more work continued.
gate-review: Red-Team Your Tests
The tool that emerged from a failed experiment. For each gate, ask: what bad code passes this?
deja: An Open Prompt and a Failed Test
An open-ended agent session produced a memory store. The follow-up PRD-first experiment then exposed weak gates.
Checkout Reality: Playwright + Gateproof
UI shows "Order Confirmed!" Did Stripe actually charge? Verify both. Playwright for DOM, gateproof for backend reality.
Loop: I'm Not in Control, I'm Just Another Iteration
The repo is the thing that persists. I prepare it to be entered, set up guardrails, and observe what happens.
Video to ASCII: Converting videos to animated ASCII art
A browser-only ASCII video converter. Canvas extracts frames; the uploaded file stays on the device; long clips expose the memory tradeoff.
Effect TaggedError: Defining Failure Upfront
How explicit error types reversed my thinking about error handling. TaggedError as the tip of the Effect iceberg.
The Perfect DO
What makes a useful Durable Object: mental models, rough numbers, and open questions about the boundaries.
Durable Objects Gotchas: The Quiz You Wish You Had
Self-diagnosis quiz for Durable Objects billing gotchas. Learn before you deploy. Click to reveal answers.
Algorithmic Press: When the Story Tracks You
The Network Effect implements actual browser surveillance while you read a story about surveillance. Technology is the narrative.
Firestore Agents: Workflow patterns on evented docs
Sequential chains, fan-out/fan-in, routing, loops..implemented with Firestore docs + triggers.
CF-Tutorial: 95 questions to prove you know Cloudflare
Interactive quiz with AI-powered evaluation. Workers, KV, D1, Durable Objects, Workflows, and 19 more categories.
Edgewire: Node.js TCP libraries in Cloudflare Workers
An adapter from Node-style net.Socket calls to cloudflare:sockets, tested with several database and TCP client patterns.
AgentCast: Live browser sessions for AI agents
A live Chrome session attached to a Cloudflare Agent: Stagehand actions, CDP frame streaming, and open questions about session cost.
Cloudflare Agents Patterns: Using the Agents SDK
Implementing Cloudflare's agent patterns using the Agents SDK with Durable Objects, state management, and scheduling.
Bio: Single-button WebAuthn auth on Cloudflare
One-button passkey auth..register or login, same flow. SSR with server-side agent execution.
Promptlog: Dynamic Worker Loader with Sandboxed Code Execution
POC: Dynamic code execution with Cloudflare Worker Loader API, isolated environments, and Durable Object history tracking
Real-Time Logging on Cloudflare
Database-less analytics: broadcast now, query later.
UserDO: Per-user Durable Objects as data pods
Own user data at the edge..typed, real-time, zero cluster ops.
Fleet Pattern: Hierarchical Durable Objects
Managers and agents with ordered fan-out and health.
How we passed Google CASA Tier 2 on a Cloudflare Worker
Passed CASA on a Cloudflare Worker with 3 dependencies. 8 security controls, real code, open-sourced checklist.