{"version":"2.1.305","anchor":"anthropic-directory-plugins-run-with-bun-auto-install-disabl","canonical_anchor":"anthropic-directory-plugins-run-with-bun-auto-install-disabl","heading":"Anthropic Directory plugins can no longer install packages on the fly","tier":"notice","area":"Plugins","scope":"individual","heads_up":true,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.305\/e\/anthropic-directory-plugins-run-with-bun-auto-install-disabl","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.305","markdown":"### Anthropic Directory plugins can no longer install packages on the fly\n\nPrograms from Anthropic Directory plugins now run with Bun's automatic package install turned off, overriding the plugin's own setting\n\n**What**\n\nBun is a program that runs JavaScript, and it can download missing packages automatically when a script needs them. For plugins from the Anthropic Directory, Claude Code now sets `BUN_OPTIONS` to `--install=disable`, which turns that automatic download off.\n\nIf such a plugin sets its own `BUN_OPTIONS`, Claude Code replaces it and logs a message saying so.\n\n**Why**\n\nDirectory plugins now have to ship everything they depend on. A plugin that relied on Bun fetching packages when it ran may fail until it bundles them.\n\n- Area: Plugins\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: yes"}