

BY Marcus Tewksbury
Your Skill's or Agent's "Arc Reactor" - Context Packages

Everyone wants to talk about the suit. The skill definition — the clever instructions, the slick interface, the thing you can show off in a demo. But the suit is inert without the glowing core buried in its chest. For skills OR agents, that core is the context. We build Context Packages this is where we pack the applied intelligence. And building it, keeping it charged, keeping it clean — that's the real lift.
Context is currency in agentic land. The newer models — Fable, Mythos, and whatever lands next quarter — are posting staggering context caps, big enough that it's tempting to think the problem is solved. Just back up the truck, dump everything in, and let the model sort it out. But two things haven't gone away: speed and efficiency still cost you, and more importantly, more context is not the same as better guidance. Point an agent in the wrong direction, or hand it too much latitude, and you should expect exactly what you'd expect from a new hire given a mountain of unlabeled files and no instructions — confident, plausible, and wrong.
That's the part the context-cap headlines miss. The skill is the question. The context is the answer you've decided the agent is allowed to give. Knowing what to say is only half of it. Knowing what not to say — what to leave out, what to suppress, where the sharp edges are — is what separates a party trick from a repeatable production process. Dumping raw sources and expecting magic works fine for a one-off. It falls apart the tenth time you run it and need the same result.
So we don't do that. We don't point an agent at raw sources and ask it to figure things out live, in the moment, under load. We train first. Before an agent ever touches a production task, we put it through a deliberate, Socratic, human-in-the-loop process. An agent reads the sources. It summarizes. We ask it questions — the questions a skeptical reviewer would ask — and we watch how it answers. Where it drifts, we correct. Where it over-reaches, we constrain. Where it's genuinely unsure, we make sure it knows to say so rather than invent. What comes out the other side isn't a pile of documents; it's a curated, interrogated, pre-digested body of context that the agent has already reasoned through once, with a human in the loop, before the stakes were real.
That trained context is what actually drives the agent or skill when it runs. And it's our secret power. Anyone can copy a skill definition — it's a text file. What they can't copy is the training the context has been through: the questions asked, the answers pressure-tested, the latitude deliberately narrowed until the outputs are boring in the best possible way. Reliable. Repeatable. Ours.
The suit gets the attention. But the reactor is what lets it fly. Build the reactor.