{"version":"2.1.286","anchor":"tool-execution-policy-gains-unattended-own-record-new-pr","canonical_anchor":"tool-execution-policy-gains-unattended-own-record-new-pr","heading":"Early groundwork for prompt composition and cache keep-alive","tier":"soon","area":"Prompt Cache","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.286\/e\/tool-execution-policy-gains-unattended-own-record-new-pr","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.286","markdown":"### Early groundwork for prompt composition and cache keep-alive\n\nClaude Code now contains a new prompt composition hook point and a cache keep-alive beta setting, with no sign they are in use\n\n**Unclear.** Whether any of these are switched on or used yet is not clear.\n\n**What**\n\nSeveral new pieces appeared in Claude Code:\n\n- a new hook point named `prompt.compose`, next to the existing points for prompt sections, context and attachments\n\n- a beta setting for keeping the prompt cache alive, `cache-keepalive-2026-09-03`\n\n- an extra rule in how tools are allowed to run unattended\n\n**Why**\n\nThese look like early signs of new ways to build prompts and to keep cached conversation data from expiring.\n\n- Area: Prompt Cache\n- Tier: Nothing to try yet\n- Useful: 3\/5\n- Signal: 4\/5\n- Present in the build but not switched on"}