{"version":"2.1.257","anchor":"new-system-prompt-snapshot-plumbed-into-mcptool-context","canonical_anchor":"new-system-prompt-snapshot-plumbed-into-mcptool-context","heading":"New system prompt snapshot plumbed into MCP\/tool context","tier":"internal","area":"System Prompt","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.257\/e\/new-system-prompt-snapshot-plumbed-into-mcptool-context","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.257","markdown":"### New system prompt snapshot plumbed into MCP\/tool context\n\nThe tool and agent context now exposes a snapshot of the system prompt in effect alongside the appended one.\n\nThe tool\/agent context builder now exposes a `systemPromptSnapshot` alongside `appendSystemPrompt`, capturing the exact system prompt in effect at a point in time.\n\n- Area: System Prompt\n- Names: `systemPromptSnapshot`\n- Tier: Under the hood\n- Useful: 3\/5\n- Signal: 3\/5"}