{"version":"2.1.239","anchor":"placeholder-mcp-tools-so-old-transcripts-still-render","canonical_anchor":"placeholder-mcp-tools-so-old-transcripts-still-render","heading":"Placeholder MCP tools so old transcripts still render","tier":"soon","area":"MCP","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.239\/e\/placeholder-mcp-tools-so-old-transcripts-still-render","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.239","markdown":"### Placeholder MCP tools so old transcripts still render\n\nDisconnected MCP tools could show proper names in old transcripts instead of blanks, but not yet.\n\n**What**\n\nA stand-in tool object can be built for an MCP tool that is no longer connected, purely so past transcript entries display a proper `${t} - ${r} (MCP)` name and result instead of a blank. It can never be called: every entry point throws. Built only when the `tengu_violin_wood` flag is on, whose fallback is false, and a remote\/control-channel condition also holds, so it is inert in this build.\n\n**Details**\n\n- Result text is stripped of OSC-8 terminal hyperlinks, other escape sequences and control characters before display.\n- Calling one yields `Display-only MCP tool invoked \\u2014 it exists only for transcript rendering`.\n\n**Evidence**\n\n`Display-only MCP tool invoked \\u2014 it exists only for transcript rendering`\n\n- Flag `tengu_violin_wood`: Off in both readings (read for one account on one subscription tier against v2.1.239; this account: off, anonymous baseline: off, compiled default: off)\n- Area: MCP\n- Tier: Nothing to try yet\n- Useful: 2\/5\n- Signal: 3\/5\n- Present in the build but not switched on"}