{"version":"2.1.321","anchor":"new-gates-tengu-deep-acorn-guards-mcp-serve-of-plugin-entri","canonical_anchor":"new-gates-tengu-deep-acorn-guards-mcp-serve-of-plugin-entri","heading":"Two switched-off checks added around plugins served over MCP","tier":"soon","area":"Plugins","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.321\/e\/new-gates-tengu-deep-acorn-guards-mcp-serve-of-plugin-entri","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.321","markdown":"### Two switched-off checks added around plugins served over MCP\n\nClaude Code has two new remotely controlled checks, off by default, one adding a stricter check on plugin entries served over MCP\n\n**Unclear.** What `tengu_hazy_boole` controls is not shown.\n\n**What**\n\nPlugins add features to Claude Code, and some of their entries can be served through MCP, a way of offering tools to Claude Code from another program. Claude Code has two new remote switches, both off unless they are turned on remotely:\n\n- `tengu_deep_acorn`: when on, Claude Code checks a plugin entry again with a stricter pass, and records when an entry would be served alongside plugin hooks that were not loaded.\n\n- `tengu_hazy_boole`: read by Claude Code, but what it controls is not shown.\n\nThe flag server returned both as off for this site's account and for an anonymous account.\n\n**Why**\n\nThese are quiet safeguards around plugin hooks served over MCP, being prepared before they are switched on.\n\n- Flag `tengu_deep_acorn`: Off in both readings (read for one account on one subscription tier against v2.1.321; this account: off, anonymous baseline: off, compiled default: off) 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- Flag `tengu_hazy_boole`: Off in both readings (read for one account on one subscription tier against v2.1.321; this account: off, anonymous baseline: off, compiled default: off) 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: Plugins\n- Tier: Nothing to try yet\n- Useful: 2\/5\n- Signal: 4\/5\n- Scope: individual\n- Heads-up: no\n- Present in the build but not switched on"}