{"version":"2.1.257","anchor":"systempromptsnapshot-option-for-records-the-system-prompt-on","canonical_anchor":"systempromptsnapshot-option-for-records-the-system-prompt-on","heading":"systemPromptSnapshot option for records the system prompt once per conversation","tier":"use","area":"System Prompt","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.257\/e\/systempromptsnapshot-option-for-records-the-system-prompt-on","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.257","markdown":"### systemPromptSnapshot option for records the system prompt once per conversation\n\nA systemPromptSnapshot option freezes the system prompt for a conversation, so mid-session changes wait for compaction.\n\nA new `systemPromptSnapshot` option records a conversation's system prompt once and reuses it verbatim on every later request and resume, instead of re-rendering `appendSystemPrompt` each launch. When a snapshot exists, mid-session model switches or system-prompt changes only take effect after compaction or a new session.\n\n- Area: System Prompt\n- Names: `systemPromptSnapshot`, `appendSystemPrompt`\n- Tier: Use it now\n- Useful: 5\/5\n- Signal: 4\/5"}