{"version":"2.1.315","anchor":"new-bundled-prompt-assets-and-a-new-tool-use-stamp","canonical_anchor":"new-bundled-prompt-assets-and-a-new-tool-use-stamp","heading":"Three new built-in prompt documents and a new session stamp","tier":"internal","area":"System Prompt","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.315\/e\/new-bundled-prompt-assets-and-a-new-tool-use-stamp","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.315","markdown":"### Three new built-in prompt documents and a new session stamp\n\nClaude Code now carries three new built-in prompt documents and a new stamp that records the session file together with a counter\n\n**What**\n\nClaude Code ships some instruction documents inside the program itself. Three new ones appear in this build:\n\n- Platform availability\n\n- Preserved thinking migration\n\n- Prompt audit\n\nThe built-in document about models has also changed. Separately, Claude Code has a new step that records which session file is in use together with a running count. A session is one conversation with Claude Code, and the session file is where that conversation is saved.\n\n**Why**\n\nNone of this changes anything you can see on its own. The document names point at features, such as preserved thinking and prompt auditing, that have not surfaced yet.\n\n- Area: System Prompt\n- Tier: Under the hood\n- Useful: 4\/5\n- Signal: 4\/5\n- Scope: individual\n- Heads-up: no"}