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Evaluating the Effectiveness of Programming Languages for Agents

Kun Chen · 10 Jun 2026

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Every claim below was made in this piece, quoted word for word and numbered in the order the piece makes them, so you can read it there rather than take our word for it. The sentence above each quote is our reading of the claim, not their wording. Each quote was checked against a stored copy of the page at build time; where the two differ, the quote is the fact.

  1. Our reading

    Static typing gives coding agents a small but real edge on hard tasks, by catching crash-class bugs that untyped code ships.

    Their wordsSo the finding is honest and bounded: on hard tasks, tsc's baseline type checking plus a mandatory compile gate buy a small but real edge by catching crash-class bugs the JavaScript arm ships to a failing run

  2. Our reading

    Letting a coding agent choose the programming language itself is the safe default when you know little about the task.

    Their wordsGiving your agent free choice is the safe default: not the highest quality you can reach, but the most you can get without knowing much about the task, at the lowest cost.

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