adam entwistle

ai engineer · building agentic tools, in public

i build small, sharp agentic-ai and claude code tooling that does real work in production: the unglamorous kind that holds up. most of it starts as something i needed myself and turns out useful to anyone building with agents. i build in public on x: the patterns, the tools, and the dead-ends.

i build for the way my own brain works: externalise the fiddly parts, make the system do the remembering. it turns out that's good design for anyone working with agents.

day job: on the engineering team at quicknode, across emea, building ai tooling on top of web3 infrastructure.

my thesis: ai agents are the next billion users of the internet, and the tooling layer is being built right now.

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what i'm working on

• small stdlib tools for agent engineering: eval, observability, context, mcp
• claude code skills and workflows for real day-to-day agent work
• mcp servers that connect ai models to live systems, apis and blockchain data
• building and writing in public about agentic-ai patterns

selected work

• fable-skills · 35 engineering-discipline skills authored by fable 5, plus a blind-graded benchmark. sonnet 5 loaded with the skills beat opus 4.8 running bare; both models improve in every area. no deps, mit.
• agent-eng-kit · small stdlib-only tools for agent engineering: a prompt-injection gauntlet, an mcp record/replay proxy, a session profiler, a context packer, an mcp doctor. no deps, no keys, mit.
• legwork · a project queue for claude code that survives you walking away. /wrap mints the next prompt while context is hot; /pickup briefs you back in thirty seconds. install as a plugin, or clone for the static dashboard and the optional unattended runner.
• claude-code-tools · zero-config doc linters for claude code projects.

stack

!Python
!TypeScript
!Node.js
!React
!Anthropic
!OpenAI

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from the feed &nbsp;·&nbsp; 22 Jul 2026

• Show HN: Libretto PR agents – Automatically fix failing playwright scripts

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find me

x / @aae_on_x &nbsp;·&nbsp;
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