install_records_unreadable

A Claude Code settings key, read out of the shipped bundle. It was in the build from v2.1.301 and was gone by v2.1.302.

Releases whose published page names install_records_unreadable.

1. v2.1.283 25 Sep 2026
   Plugin installs stop if the installed-plugins file is from a newer version

   Installing a plugin now stops if installed_plugins.json is in a format this version of Claude Code cannot read

   found in this entry's text

2. v2.1.283 25 Sep 2026
   Plugin install and uninstall now stop if the install records cannot be read

   claude plugin install and claude plugin uninstall now fail with install_records_unreadable instead of going ahead when their records are unreadable

   found in this entry's text

3. v2.1.283 25 Sep 2026
   Plugin errors about bad IDs or unreadable install records are classed as validation

   Four plugin failure types, such as an invalid plugin ID, are now reported as validation errors in Claude Code's error reports

   found in this entry's text

The earliest release whose published evidence quoted install_records_unreadable was v2.1.283, 25 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.