{"version":"2.1.280","anchor":"new-filesystem-error-case-working-name-not-plain","canonical_anchor":"new-filesystem-error-case-working-name-not-plain","heading":"New filesystem error case: WORKING_NAME_NOT_PLAIN","tier":"internal","area":"File Handling","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280\/e\/new-filesystem-error-case-working-name-not-plain","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.280","markdown":"### New filesystem error case: WORKING_NAME_NOT_PLAIN\n\nA new filesystem error, WORKING_NAME_NOT_PLAIN, reports when a file placement isn't a plain file name\n\n**What**\n\nClaude Code has a new internal error case for file placement failures, which produces the message \"not a plain file name here\".\n\n**Why**\n\nThis gives a clearer, specific error when a file operation fails because the name being used isn't a plain file name, rather than reporting a generic failure.\n\n- Area: File Handling\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 1\/5"}