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From Prompt Engineering to Context Engineering: Why Typed Graphs Beat Chatty Agents in the Lab

A lab workflow is a terrible place to discover that your AI agent has been “remembering” chemistry as a conversation. That sounds unkind. It is also the point. In a casual chatbot, losing track of context means an awkward answer. In computational chemistry, losing track of context can mean a wrong molecular geometry, a missing imaginary-frequency check, an invalid charge or multiplicity, or a pKa estimate that looks numerically confident while being scientifically useless. The model did not necessarily become stupid. The workflow around it treated state as text. ...

February 23, 2026 · 16 min · Zelina
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Beyond Chain-of-Thought: When Models Start Arguing with Themselves

The mirror test is more useful than another monologue Mirror. That is where the paper’s argument becomes easy to see. Ask a multimodal model to generate an image of a plush lion in front of a mirror. The generated image may look plausible at first glance. Then ask the same model’s understanding branch whether the image actually matches the prompt. The model may say no: if the lion faces the camera, the mirror should mostly show its back. The generator has produced the scene; the understander has rejected it. ...

February 22, 2026 · 15 min · Zelina
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Don’t Prompt Harder — Engineer Smarter: Inside CEDAR’s Agentic Data Scientist

Dataset. That is where many “AI data scientist” demos quietly stop being impressive. A tidy CSV, a small notebook, a polite prompt, and a model that produces a confident answer: this is enough for a video clip. It is not enough for data science. Real data science is not a single question answered by a single model response. It is a sequence of choices: load this file, inspect these columns, define this metric, split the data this way, train this baseline, handle this error, explain this plot, revise the next step. ...

February 22, 2026 · 14 min · Zelina
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Mind the Drift: Why Stateful AI Guardrails Beat Bigger Models

A chatbot rarely fails in one clean dramatic explosion. More often, it is nudged. First, the user asks for a harmless explanation. Then a role-play frame. Then a historical analogy. Then a translation. Then a “purely fictional” operational detail. By the time the final request arrives, the model has already been walked across the room. The last prompt is not the attack. It is the receipt. ...

February 21, 2026 · 15 min · Zelina
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Small Models, Big Skills: When Agent Frameworks Meet Industrial Reality

Compliance has a wonderful way of killing beautiful demos. In a demo, the agent calls a frontier model, loads a tool, reads a document, writes a decision, and everyone nods at the future. In a regulated company, the same workflow meets a less poetic checklist: where did the data go, who pays for the GPU time, can this run inside our perimeter, and why did the model spend twenty seconds “thinking” about a binary classification task? ...

February 19, 2026 · 15 min · Zelina
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From Scaling to Steering: Operationalizing Control in Frontier Models

Scale is easy to understand. Not easy to finance, of course. Nobody accidentally misplaces a GPU cluster behind the sofa. But conceptually, the industry has been comfortable with the story: more compute, more data, more parameters, more capability. Control is less photogenic. It does not fit neatly into a benchmark leaderboard. It does not produce the same executive sparkle as “our model is bigger.” It asks a colder question: when a model becomes capable enough to matter, can its behavior still be shaped under pressure, across adversarial prompts, repeated use, and operational constraints? ...

February 18, 2026 · 14 min · Zelina
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Cut the Loops: When Web Agents Learn to Think in DAGs

Research agents have a bad habit that will feel familiar to anyone who has watched a junior analyst “verify one more source” for three hours. They search. They visit. They re-search. They validate the thing they already validated. Then, because the context window is now full of debris, they occasionally forget the actual question. A triumph of diligence, perhaps. A triumph of intelligence, less obviously. ...

February 17, 2026 · 14 min · Zelina
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Flow, Don’t Hallucinate: Turning Agent Workflows into Reusable Enterprise Assets

Workflow reuse sounds like a housekeeping problem. It is not. In many companies, workflow automation has already escaped the tidy diagram on the transformation slide. One team builds an n8n flow to process invoices. Another builds a Dify workflow to triage support tickets. A third writes an internal tool chain for compliance checks. Each workflow contains useful logic: API calls, branching rules, exception handling, data validation, reporting steps, and the small ugly details that make automation survive contact with real operations. ...

February 17, 2026 · 15 min · Zelina
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It Takes Two to Think: Why AI’s Future May Be Social Before It’s Smart

Conversation is usually treated as the interface layer of AI. The user asks. The model answers. The chatbot smiles politely, perhaps too politely, and everyone pretends that a slightly longer prompt is the same thing as a better thinking system. This is convenient, measurable, and occasionally profitable. It is also probably too shallow. ...

February 17, 2026 · 16 min · Zelina
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Potential Energy: What Chain-of-Thought Is Really Doing Inside Your LLM

The familiar ritual: ask it to think longer When an LLM gives a weak answer, the standard reflex is now almost ceremonial: ask it to think step by step. The model writes more. The answer often improves. The benchmark number rises. Everyone feels temporarily reassured. This habit has become so normal that many teams treat chain-of-thought as if it were a small reasoning engine bolted onto the model: more intermediate steps, more deliberate thought, more correctness. A comforting story. Also, like many comforting stories in AI, not quite what the evidence says. ...

February 17, 2026 · 17 min · Zelina