Follow Discord
Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.287 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.287 ·

Read tool gives better advice for large one-line JSON files

When a large JSON file is all on one line, the Read tool now explains why line ranges won't help and suggests using jq

You'll notice Improvements
JSON All of v2.1.287
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.287,
ImprovementsSection of the release
What

The Read tool is how Claude opens files. A file can be too large to read in one go. Claude Code then replies with a hint, and that hint is now built from several parts instead of one fixed message telling Claude to use the offset and limit options (which read a range of lines). For JSON files, the hint now explains that a long value, or the whole file, can sit on a single line, so offset and limit cannot split it. It suggests looking into the file with jq, a command-line tool for querying JSON.

Why

Claude is steered away from retrying line ranges that cannot work and toward a way that does, when it meets a big one-line JSON file.

See this entry in the whole of v2.1.287 →

Feedback