
Most AI Agents Nobody Needs: The Utility Test
A practical framework for deciding when an autonomous agent actually beats a prompt or a plain feature — and when it's just expensive theater.

A practical framework for deciding when an autonomous agent actually beats a prompt or a plain feature — and when it's just expensive theater.

A practical selection matrix across reasoning, coding, latency, and cost — plus why routing one model per task beats crowning a single winner.

LoRA and lightweight fine-tuning are cheaper than ever, but for most inbox and document tasks, prompting plus retrieval still wins. Here's the decision tree.

Email is a messy, threaded corpus. Good retrieval design — thread chunking, dedup, recency weighting — decides whether AI replies are trustworthy.

Most multimodal benchmarks test isolated perception, not the chained document-to-action tasks agents actually perform. Here's what better evaluation looks like.

Spreadsheet edits demand cell-level, deterministic evaluation — accuracy, reversibility, and formula integrity — not vibes-based scoring.

A diagnostic framework for why agentic workflows degrade over multi-step tasks — context loss, tool errors, and goal drift — plus concrete mitigations.

Reasoning depth should scale with task difficulty. Here's when chain-of-thought helps, when it hurts, and how to spend reasoning tokens wisely.

The clever one-liner prompt is fading. Durable AI work needs specifications: constraints, examples, and acceptance criteria you can reuse.

A decision framework for choosing constrained AI workflows over open-ended agents — and the specific conditions that justify going agentic.

How to build evals for subjective knowledge work — emails, summaries, docs — using rubrics, pairwise comparison, and human-in-the-loop sampling.

When a RAG pipeline gives bad answers, the LLM usually isn't the problem. Retrieval is. Here's where chunking, ranking, and recall actually break.
Get started
Claim your address before someone else does — free to start, with an AI-native inbox built in.