Code Mode

1 notes move from the word to a real choice at work — understand it first, then decide whether to use it.

Open the first note ↗Back to the question map

READING THREADOPEN

1notes

HOW TO READStart where you are stuck, then follow the evidence and trade-offs

Each note stands alone, or becomes the next step in this thread.

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THE QUESTION THIS PAGE ANSWERS

ANSWER FIRST

What is Code Mode, and which AI decisions does it change?

Announcement calls it PTC, source calls it code mode: worker sandbox isolation, message protocol, and double bookkeeping This page keeps the related concepts, common mistakes, and practical notes in one reading thread.

DECISION RULE

First decide whether you are blocked by a definition, a choice, or verification; then choose the closest of the 1 notes below.

TRY NEXT

Start with “Code Mode: One Program Beats Many Tool Rounds,” then restate the conclusion using your own task.

WATCH FOR

Do not treat every method in a topic as interchangeable. The answer changes with the input, risk, and acceptance bar.

THIS QUESTION THREAD

Put the word back inside the choice it changes.

1 notes

Frontier

Code Mode: One Program Beats Many Tool Rounds

Announcement calls it PTC, source calls it code mode: worker sandbox isolation, message protocol, and double bookkeeping

Inside DeepSeek Harness 11 min →