{"name":"mcp","slug":"mcp","family":"cli","title":"CLI flags","noun":"CLI flag","description":"Internal build versions get trimmed before metrics are sent, so daily builds report one value.","description_source":"entry","described_by":{"version":"2.1.219","anchor":"dev-and-engine-build-versions-collapsed-before-telemetry"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.319","builds":0,"mined_builds":159,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.309","anchor":"claude-test-plugin-explorer-prompt-forbids-credential-files","heading":"Claude Test's explorer agent may no longer open credential files or leave the project","line":"The Claude Test plugin's explorer agent is now told to use only Read, Grep and Glob, avoid credential files and stay inside the project folder","released_at":"2026-10-22 20:34:13","reason":"found in this entry's text"},{"version":"2.1.309","anchor":"claude-test-plugin-gains-toolcall-and-many-more-host-calls","heading":"Built-in Claude Test plugin can do more, with tighter rules for its explorer","line":"The bundled Claude Test plugin now handles the tool.call hook and more host calls, and its explorer is told to stay away from credential files","released_at":"2026-10-22 20:34:13","reason":"found in this entry's text"},{"version":"2.1.304","anchor":"usage-rate-limit-message-shows-hold-time","heading":"\/usage now says when you can try again after a rate limit","line":"When \/usage is rate limited, its message now shows when it can be tried again instead of saying \"try again in a moment\"","released_at":"2026-10-19 19:47:15","reason":"found in this entry's text"},{"version":"2.1.286","anchor":"mcp-log-prefix-and-discover-verdicts-message-reworded","heading":"MCP log message about saving server checks reworded","line":"A log message about failing to save remembered MCP server checks now uses a shorter prefix and describes a different retry","released_at":"2026-09-30 17:14:38","reason":"found in this entry's text"},{"version":"2.1.285","anchor":"sdkmcp-surface-names-mcpconnect-sessionappend-mcp-serv","heading":"New names for MCP connections and appending to a session","line":"Three new names appear for connecting to MCP, appending to a session and a plain MCP server call, next to existing ones","released_at":"2026-09-29 17:32:09","reason":"found in this entry's text"},{"version":"2.1.284","anchor":"managed-policy-can-block-claude-mcp-add-when-strictplugino","heading":"claude mcp add is refused when managed settings allow only plugin MCP servers","line":"If managed settings restrict MCP servers to plugins, `claude mcp add` now stops with an error instead of adding a server that never loads","released_at":"2026-09-28 17:11:59","reason":"found in this entry's text"},{"version":"2.1.268","anchor":"plugin-status-listing-now-flags-org-required-mcp-plugins","heading":"Plugin status listing now flags org-required MCP plugins","line":"Plugin status now shows \"required by your org\" when a loaded MCP plugin is mandated by org settings","released_at":"2026-09-10 18:41:11","reason":"named in this entry"},{"version":"2.1.265","anchor":"cursor-ide-config-import-import","heading":"Cursor IDE config import ( \/import )","line":"\/import can now bring in configuration from Cursor IDE, not just Codex and Gemini CLI","released_at":"2026-09-08 19:05:16","reason":"found in this entry's text"},{"version":"2.1.265","anchor":"artifact-type-instructions-prompt-block-gained-size-scrubbin","heading":"Artifact-type-instructions prompt block gained size-scrubbing and page-content helpers","line":"Artifact type-instructions prompts gain new helpers for verifying and trimming embedded page content","released_at":"2026-09-08 19:05:16","reason":"found in this entry's text"},{"version":"2.1.257","anchor":"new-mcp-connector-declaration-error-for-locally-configured-s","heading":"New MCP connector-declaration error for locally-configured servers","line":"Naming a locally-configured MCP server where a claude.ai connector is expected now gives a distinct host_unavailable error.","released_at":"2026-09-01 17:15:33","reason":"found in this entry's text"}],"entries_total":29,"docs":[],"docs_total":0,"gates":[],"related":[],"url":"https:\/\/changelogs.core-directive.com\/reference\/cli\/mcp","family_url":"https:\/\/changelogs.core-directive.com\/reference\/cli.json"}