FODEV JEO / FIELD NOTES
Field notes on AI agents, harness engineering, and game AI from an AI product engineer with 8 years shipping production systems at NCSOFT and Com2uS. Verified code, primary-source analysis, and honest tradeoffs.
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oh-my-jeo, jeo-code, jeopi, jeo-claw, and jeo-skills form one spec-first harness. A deep dive into why agent performance comes from carrying forward failed-attempt state and evidence — not from stu...
How a Bun-based AI coding agent plus 146 battle-tested skills turns any developer into a production AI builder — philosophy, workflow, use cases, and the real power of the jeo-skills ecosystem.
LATEST INVESTIGATIONS
OpenMAIC v1.0.0 promises a whole course from one prompt. The pinned source shows the real engineering: machine-checked teaching styles, frozen-failure evals, bounded inputs.
Archify tops GitHub trending as a diagram skill, but the pinned source reveals a contract that distrusts its own agent, its models, and even its update server.
A source audit of Bilawal Sidhu’s open-sourced satellite simulator: a 7,383-line key-broker server, a closed 28-tool voice-agent surface, and MIT that stops at the data.
A source audit of 19 MiniMax H3 downloads: four are not H3 LoRAs, real adapters carry runtime contracts, and the license excludes Korea, the US, EU, and UK.
A source, runtime, package, and license audit of Liquid Gooey, Border Beam, Metal FX, and Thinking Orbs beyond a viral X demo.
Huobao Drama, Toonflow, waoowaoo, and Moyin Creator automate real short-drama pipelines. A source audit shows that none of them is simultaneously free to operate, unrestricted for commercial use, a...
CozyClay turns browser-based 3D previs into a reusable shot contract for AI video. A source audit tests its camera, export, MCP, and licensing boundaries.
oMLX is more than an Apple Silicon inference server with continuous batching. Its 256-token cache blocks, SSD tier, model eviction, and fairness scheduler expose a familiar game-engine problem: kee...