2 files changed, 89 insertions, 0 deletions
diff --git a/crates/mozart-core/src/lib.rs b/crates/mozart-core/src/lib.rs
index 7b78280..d898b62 100644
--- a/crates/mozart-core/src/lib.rs
+++ b/crates/mozart-core/src/lib.rs
@@ -13,6 +13,7 @@ pub mod package_info;
 pub mod package_sorter;
 pub mod platform;
 pub mod repository_utils;
+pub mod script_events;
 pub mod suggest;
 pub mod validation;
 pub mod version_bumper;
diff --git a/crates/mozart-core/src/script_events.rs b/crates/mozart-core/src/script_events.rs
new file mode 100644
index 0000000..bb7fbdc
--- /dev/null
+++ b/crates/mozart-core/src/script_events.rs
@@ -0,0 +1,88 @@
+//! Script event name constants.
+//!
+//! Mirrors `Composer\Script\ScriptEvents` (user-runnable script events) and the
+//! internal event constants from `Composer\Installer\PackageEvents`,
+//! `Composer\Installer\InstallerEvents`, and `Composer\Plugin\PluginEvents`
+//! that are referenced by the dispatcher when validating run-script input.
+
+// User-runnable script events — `Composer\Script\ScriptEvents`.
+pub const PRE_INSTALL_CMD: &str = "pre-install-cmd";
+pub const POST_INSTALL_CMD: &str = "post-install-cmd";
+pub const PRE_UPDATE_CMD: &str = "pre-update-cmd";
+pub const POST_UPDATE_CMD: &str = "post-update-cmd";
+pub const PRE_STATUS_CMD: &str = "pre-status-cmd";
+pub const POST_STATUS_CMD: &str = "post-status-cmd";
+pub const POST_ROOT_PACKAGE_INSTALL: &str = "post-root-package-install";
+pub const POST_CREATE_PROJECT_CMD: &str = "post-create-project-cmd";
+pub const PRE_ARCHIVE_CMD: &str = "pre-archive-cmd";
+pub const POST_ARCHIVE_CMD: &str = "post-archive-cmd";
+pub const PRE_AUTOLOAD_DUMP: &str = "pre-autoload-dump";
+pub const POST_AUTOLOAD_DUMP: &str = "post-autoload-dump";
+
+// Internal events — `Composer\Installer\PackageEvents`.
+pub const PRE_PACKAGE_INSTALL: &str = "pre-package-install";
+pub const POST_PACKAGE_INSTALL: &str = "post-package-install";
+pub const PRE_PACKAGE_UPDATE: &str = "pre-package-update";
+pub const POST_PACKAGE_UPDATE: &str = "post-package-update";
+pub const PRE_PACKAGE_UNINSTALL: &str = "pre-package-uninstall";
+pub const POST_PACKAGE_UNINSTALL: &str = "post-package-uninstall";
+
+// Internal events — `Composer\Installer\InstallerEvents`.
+pub const PRE_OPERATIONS_EXEC: &str = "pre-operations-exec";
+
+// Internal events — `Composer\Plugin\PluginEvents`.
+pub const INIT: &str = "init";
+pub const COMMAND: &str = "command";
+pub const PRE_FILE_DOWNLOAD: &str = "pre-file-download";
+pub const POST_FILE_DOWNLOAD: &str = "post-file-download";
+pub const PRE_COMMAND_RUN: &str = "pre-command-run";
+pub const PRE_POOL_CREATE: &str = "pre-pool-create";
+
+/// Script events the user is allowed to invoke via `run-script`.
+///
+/// Mirrors `RunScriptCommand::$scriptEvents` in Composer.
+pub const USER_RUNNABLE: &[&str] = &[
+    PRE_INSTALL_CMD,
+    POST_INSTALL_CMD,
+    PRE_UPDATE_CMD,
+    POST_UPDATE_CMD,
+    PRE_STATUS_CMD,
+    POST_STATUS_CMD,
+    POST_ROOT_PACKAGE_INSTALL,
+    POST_CREATE_PROJECT_CMD,
+    PRE_ARCHIVE_CMD,
+    POST_ARCHIVE_CMD,
+    PRE_AUTOLOAD_DUMP,
+    POST_AUTOLOAD_DUMP,
+];
+
+/// All recognised event names — user-runnable plus internal events emitted by
+/// the dispatcher during install/update/etc. Used by `run-script` to surface a
+/// "cannot be run with this command" error for known internal events.
+pub const ALL: &[&str] = &[
+    PRE_INSTALL_CMD,
+    POST_INSTALL_CMD,
+    PRE_UPDATE_CMD,
+    POST_UPDATE_CMD,
+    PRE_STATUS_CMD,
+    POST_STATUS_CMD,
+    POST_ROOT_PACKAGE_INSTALL,
+    POST_CREATE_PROJECT_CMD,
+    PRE_ARCHIVE_CMD,
+    POST_ARCHIVE_CMD,
+    PRE_AUTOLOAD_DUMP,
+    POST_AUTOLOAD_DUMP,
+    PRE_PACKAGE_INSTALL,
+    POST_PACKAGE_INSTALL,
+    PRE_PACKAGE_UPDATE,
+    POST_PACKAGE_UPDATE,
+    PRE_PACKAGE_UNINSTALL,
+    POST_PACKAGE_UNINSTALL,
+    PRE_OPERATIONS_EXEC,
+    INIT,
+    COMMAND,
+    PRE_FILE_DOWNLOAD,
+    POST_FILE_DOWNLOAD,
+    PRE_COMMAND_RUN,
+    PRE_POOL_CREATE,
+];