{"version":"2.1.9","anchor":"enable-tool-search-percentage-control","canonical_anchor":"enable-tool-search-percentage-control","heading":"ENABLE_TOOL_SEARCH Percentage Control","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.9\/e\/enable-tool-search-percentage-control","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.9","markdown":"### ENABLE_TOOL_SEARCH Percentage Control\n\n**What**\n\nThe `ENABLE_TOOL_SEARCH` environment variable now supports percentage-based control with the `auto:N` syntax.\n\n**Usage**\n\n`ENABLE_TOOL_SEARCH=auto:50 # 50% tool search probability ENABLE_TOOL_SEARCH=auto:0 # Equivalent to \"tst\" (always tool search) ENABLE_TOOL_SEARCH=auto:100 # Equivalent to standard\/mcp-cli modes` **Details** - Values are clamped between 0-100 - Invalid values log a warning and fall back to defaults - Provides fine-grained control over tool search behavior **Evidence** `DX0()` at line 292496 (auto percentage parser, contains `\"Invalid ENABLE_TOOL_SEARCH value\"`, `\"expected auto:N where N is a number\"`)"}