{"version":"2.1.228","anchor":"write-before-read-rule-is-now-decided-locally-not-by-a-remot","canonical_anchor":"write-before-read-rule-is-now-decided-locally-not-by-a-remot","heading":"Write-before-Read rule is now decided locally, not by a remote flag","tier":"notice","area":"Permissions","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.228\/e\/write-before-read-rule-is-now-decided-locally-not-by-a-remot","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.228","markdown":"### Write-before-Read rule is now decided locally, not by a remote flag\n\nWriting a file you have not read is now decided locally by model and permissions, not a server flag.\n\n**What**\n\nWhether Write may touch a file you have not read was previously switched by a server-side flag; that flag is gone from the build and the rule is now fixed in the client. Writing without a prior Read is allowed only for non-`.ipynb` files, only for models outside a listed set (including `claude-opus-4-5` and `claude-sonnet-4-5`), and only when reading that path is already auto-allowed by your permission rules. A file you read only as a partial view now always triggers the error.\n\n**Details**\n\n- The removed remote flag was `tengu_velvet_mallet`; nothing in the build reads it any more, so behaviour no longer varies by server config.\n- Notebook files are excluded outright, so `.ipynb` writes always require a real Read first.\n- If reading the path would itself prompt for permission, the exemption does not apply.\n\n**Evidence**\n\n`File has not been read yet. Read it first before writing to it.`\n\n- Flag `tengu_velvet_mallet`: Off in both readings (read for one account on one subscription tier against v2.1.228; this account: off, anonymous baseline: off, compiled default: not a boolean we can read) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Area: Permissions\n- Tier: You'll notice\n- Useful: 4\/5\n- Signal: 4\/5"}