A final tip: probably the most important thing to get great results out of Claude Code -- give Claude a way to verify its work. If Claude has that feedback loop, it will 2-3x the quality of the final result. … Verification looks different for each domain. It might be as simple as running a bash command, or running a test suite, or testing the app in a browser or phone simulator. Make sure to invest in making this rock-solid.

Boris ChernyCreator and head of Claude Code, Anthropic · Leader, Anthropic

Social post: X post by Boris Cherny (the last post of a numbered thread of tips), X post by Boris Cherny, January 2, 2026.

  • 2.5x output quality change. AI assists a person

Checked against the source [ Grade B ] Said in the last year Anthropic: $47 billion revenue, run-rate, May 2026 Sells AI tools

Filed under

Who is speaking

Boris Cherny, Creator and head of Claude Code. Leads the product and describes how Anthropic's own engineers use it, so he is in a position to know the internal practice. Anthropic sells Claude Code, so his account is first-party and promotional, and the figures he gives are spoken claims.

Anthropic sells AI or agent tools or services, so it has a reason to publish flattering numbers about AI. The passage stays in the archive; read it with that in mind.

How this was checked

Checked against the source by a first reader, then confirmed independently by a second reader who fetched the source without seeing the first reader's notes (Independent review agent (Codex, GPT-6 Astra), blind second pass from passage text and citation only, told not to read the repository, 2026-11-07).

Matches the first and third paragraphs of post 13, after the numbering prefix, with whitespace normalization. The … omits the intervening paragraph describing Claude testing changes to claude.ai/code using the Claude Chrome extension, opening a browser, testing the UI, and iterating. The returned author is Boris Cherny (@bcherny), and created_at is Fri Jan 02 19:59:05 +0000 2026. Presented as his own words.

How to cite this passage

Boris Cherny (Anthropic), “X post by Boris Cherny (the last post of a numbered thread of tips)”, X post by Boris Cherny, 2026-01-02. https://x.com/bcherny/status/2007179861115511237 Archived at https://the-ai-record.com/passages/anthropic-give-claude-way-to-verify-its-work-2026

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