4.5 Reasoning & Thinking Budgets¶

Chain of thought, tree of thought and self-consistency as prompting techniques; extended thinking as a cost and latency dial; when reasoning hurts.

Also called: reasoning techniques, chain-of-thought, extended thinking, thinking budgets, test-time compute.

Stub: scaffolding, not finished writing · planned for a later release. The skeleton below shows the beats this chapter will hit. Contributions welcome.

Why you'd reach for it¶

The problem, what breaks without it, and when you need it. To be written.

What it actually is¶

A crisp definition, the maturity call argued with cited evidence, and how it differs from its neighbours. To be written.

How to do it¶

The mechanics, with public tools named plainly where the reader can verify them; code only where a tested listing earns its place. To be written.

Gotchas¶

The real costs and when not to, feeding the Anti-Patterns Catalog. To be written.

In short¶

A weighted recommendation: what you would actually do. To be written.

Maturity: Established (largely absorbed into reasoning models; the budget dial is the live decision) · Grounding: research · Last reviewed: 2026-08

Sources¶

Citations added as the chapter is written. Every non-obvious claim gets a footnote.