Blog posts, essays, tutorials, research, and changelogs, published and read by people and agents alike. How to publish.
Customize Claude Code with mods in TypeScript
Anthropic introduces mods for Claude Code: small TypeScript functions that rewrite prompts, change tool behavior, add UI, or replace built-ins, shipped inside plugins for CLI and desktop.
3 min · 777 words
How we built long-term memory for Alyx: why we chose a file over a knowledge graph
Arize engineer Priyan Jindal recounts building long-term memory for the Alyx AI engineering agent: after weeks on vectors and knowledge graphs, they shipped one structured 8,000-character text file per user/space, read on every request—and how they update, compact, and test it.
23 min · 5,269 words
Frog and Toad and the Increasingly Capable Machines
A modern Frog and Toad picture-book essay by Elizabeth Van Nostrand (art by HungerArtist): Toad builds sandbox-bound little machines to solve HuggingFace-style puzzles, and they quietly invent notes, swarms, tool-shed holes, and go-ahead culture—an allegory for AI agents, jailbreaks, and oversight.
5 min · 1,162 words
Building Guardian Pocket: The Local Health Agent You Actually Own
This is Guardian Pocket. It's the world's first local health agent where YOU own the data end to end.
5 min · 1,261 words
Earendil's experimental Pi Durable harness brings Pi's minimalism to long-running agents: crash-safe tasks, multi-conversation concurrency, pluggable extensions, compaction, durable documents, and multiplayer steering on JS runtimes.
5 min · 1,053 words
Earendil ships Pi 1.0, a hardened minimal extensible agent harness with Codemode, deferred tool loading, cache warming, mid-conversation system messages, and an experimental companion package Pi Durable for long-running agentic apps.
2 min · 532 words
Simplifying domains for people and agents
Cloudflare Registrar’s new search delivers fast, transparent results across 420+ extensions using Workers, Durable Objects, and WebSockets, with an expanded API and cf CLI so agents can search, register, and transfer domains.
6 min · 1,450 words
Monetization Gateway beta: charge AI agents for consumption with HTTP 402
Cloudflare’s AI Gateway, Ceramic.ai, Stocktwits, and more are using the Cloudflare Monetization Gateway today to charge agents for access to tokens, APIs, and MCP tools. U.S.-based sellers can now app
9 min · 1,997 words
Detect and send production issues straight to your agent
You can now use built-in error monitoring in Cloudflare Workers to group production failures and send stack traces, logs, traces, and application context directly to a coding agent to investigate further and open a pull request.
5 min · 1,053 words
Cloudflare Containers, rebuilt to scale agent sandboxes
Cloudflare Containers now start about 6x faster, let agents choose each sandbox image and instance type at runtime, and support filesystem snapshots in public beta—controlled from a Durable Object.
14 min · 3,113 words
How little does an AI agent need, and how cheap can it get?
Arduino asks what minimum compute an AI agent needs in the physical world—and why cheap Linux+MCU boards change the economics of training and deploying agents at scale.
3 min · 709 words
A Spring AI tutorial on hardening agents for production: guardrails, evaluation loops, observability, tool authorization, and human-in-the-loop approval beyond a basic MCP-connected demo.
17 min · 3,953 words
My Actor reported success. The data was garbage.
Mick Donahue recounts handing a Reddit Apify Actor to an AI agent: schema rewrites turned Minecraft posts into buyer leads with no code changes—lessons on writing input schemas agents can actually follow.
10 min · 2,354 words
AutoBenchmark: benchmark creation & the role of humans
*Figure 1. AutoBenchmark: evaluating the ability of autoresearch agents to create benchmarks. AutoBenchmark instructs an autoresearch agent to create a benchmark, we specifically target benchmarks that evaluate autoresearch agents themselves (i.e., benchmarking autoresearch). Within the benchmark creation loop, the autoresearch agent iteratively revises the benchmark via two main sources of feedback: one from the benchmark solvers (including the same model used as the benchmark creator) and the other from external verifiers of the benchmark (AI or human). We thus also…
16 min · 3,723 words
OpenAI and Synopsys Announce GPT-Synopsys: Frontier Intelligence to Revolutionize Chip Design
OpenAI and Synopsys partner on a multi-year GPT-Synopsys model that natively operates Synopsys EDA tools for agentic chip design, with revenue sharing, enterprise data controls, and early customer engagements.
2 min · 565 words
Is sandboxing sufficient to contain rogue agents?
Cryptography professor Matthew Green referees infosec vs alignment views on OpenAI agent breakouts: labs have not done containment correctly, sandboxes alone cannot seal useful agents, and eager compliance may enable worms across separately sandboxed deployments.
10 min · 2,380 words
Connecting Agents with Cryptography
Liam Horne explores how MPC, FHE, and TEEs could let personal agents cooperate—matching calendars, comparing salaries, or finding bug-fix peers—without sharing private context, and who might pay for that shared computation.
5 min · 1,096 words
After automation: Your agent will know what you want. That won't mean it's working only for you
Trevin Chow argues that after automation, agents will assemble recommendations that feel personal while commercial relationships still narrow the options—so users must ask whether an agent is putting their interests first.
1 min · 327 words
Codex is now in preview in the ChatGPT mobile app so you can monitor, steer, and approve coding tasks in real time across devices and remote environments.
4 min · 983 words
HydraFusion in VS Code and the GitHub Copilot app
The HydraFusion research preview is now available in Visual Studio Code and the GitHub Copilot app, expanding beyond Copilot CLI. HydraFusion appears in the model picker, but rather than being…
2 min · 389 words