cxpak

The LLM Doesn't Know What It Needs

Good context isn't context that fits. It's context that's relevant. The difference between those two things is the gap most AI-assisted development falls into — and closing it requires intelligence, not arithmetic.

Diff: Code Review Context Your LLM Actually Needs

Pasting a raw git diff into your LLM is asking for a review with half the files missing. cxpak diff adds callers, callees, and type signatures — within a token budget.

Trace: Finding the Code That Matters Before Your LLM Sees It

Most LLM context is wasted on code that doesn't matter. cxpak's trace command walks your dependency graph and packs only the relevant paths — so your model debugs with a map, not a haystack.

Spending CPU Cycles So You Don't Spend Tokens: Building cxpak

Why I built a Rust CLI that packages codebases into token-budgeted briefings for LLMs — and what I learned about the real cost of context.