diff --git a/src/cli/mod.rs b/src/cli/mod.rs
index 2716ecc..0c87db5 100644
--- a/src/cli/mod.rs
+++ b/src/cli/mod.rs
@@ -50,7 +50,7 @@ pub enum McpScopeArg {
 				"model", "prompt", "role", "session", "agent", "rag", "rebuild_rag",
 				"macro_name", "execute", "code", "file", "no_stream", "no_memory",
 				"init_memory", "dry_run", "info", "build_tools", "install",
-				"install_from", "sync_models", "list_models", "list_roles",
+				"install_from", "install_builtins", "sync_models", "list_models", "list_roles",
 				"list_sessions", "list_agents", "list_rags", "list_macros",
 				"list_skills", "list_bundles", "skill", "tail_logs", "completions",
 				"update", "update_bundle", "uninstall",
@@ -61,6 +61,11 @@ pub enum McpScopeArg {
 			.args(["mcp_add", "mcp_remove", "mcp_list", "mcp_get"])
 			.multiple(false)
 	),
+	group(
+		ArgGroup::new("remote-install")
+			.args(["install", "install_from"])
+			.multiple(false)
+	),
 )]
 pub struct Cli {
     /// Input text
@@ -180,30 +185,43 @@ pub struct Cli {
     #[arg(long, help_heading = "List & Discovery")]
     pub list_bundles: bool,
 
+    /// Install assets from a remote git repository (URL may be suffixed with #<ref>), or update an already-installed bundle by name
+    #[arg(
+        long,
+        value_name = "GIT_URL|NAME",
+        help_heading = "Installation & Updates"
+    )]
+    pub install: Option<String>,
     /// Reinstall bundled assets, overwriting any local changes
     #[arg(
         long,
         value_name = "CATEGORY",
         value_enum,
+        conflicts_with_all = ["install", "install_from"],
         help_heading = "Installation & Updates"
     )]
-    pub install: Option<AssetCategory>,
+    pub install_builtins: Option<AssetCategory>,
     /// Install assets from a remote git repository (URL may be suffixed with #<ref>)
-    #[arg(long, value_name = "GIT_URL", help_heading = "Installation & Updates")]
+    #[arg(
+        long,
+        value_name = "GIT_URL",
+        hide = true,
+        help_heading = "Installation & Updates"
+    )]
     pub install_from: Option<String>,
-    /// Restrict --install-from to a single asset category
+    /// Restrict a remote install to a single asset category
     #[arg(
         long,
         value_name = "CATEGORY",
         value_enum,
-        requires = "install_from",
+        requires = "remote-install",
         help_heading = "Installation & Updates"
     )]
     pub filter: Option<InstallFilter>,
-    /// Overwrite all conflicts without prompting (used with --install-from)
+    /// Overwrite all conflicts without prompting (used with --install)
     #[arg(
         long,
-        requires = "install_from",
+        requires = "remote-install",
         help_heading = "Installation & Updates"
     )]
     pub install_force: bool,
@@ -540,6 +558,94 @@ mod tests {
         assert!(Cli::try_parse_from(["coyote", "--yes"]).is_err());
     }
 
+    #[test]
+    fn parse_install_flag_takes_url_or_name() {
+        assert_eq!(
+            parse(&["--install", "https://github.com/x/y"])
+                .install
+                .as_deref(),
+            Some("https://github.com/x/y")
+        );
+    }
+
+    #[test]
+    fn parse_install_builtins_flag_takes_category() {
+        assert_eq!(
+            parse(&["--install-builtins", "agents"]).install_builtins,
+            Some(AssetCategory::Agents)
+        );
+        assert_eq!(
+            parse(&["--install-builtins", "mcp_config"]).install_builtins,
+            Some(AssetCategory::McpConfig)
+        );
+    }
+
+    #[test]
+    fn parse_install_from_flag_still_works() {
+        assert_eq!(
+            parse(&["--install-from", "https://github.com/x/y"])
+                .install_from
+                .as_deref(),
+            Some("https://github.com/x/y")
+        );
+    }
+
+    #[test]
+    fn parse_install_conflicts_with_install_from() {
+        assert!(Cli::try_parse_from(["coyote", "--install", "x", "--install-from", "y"]).is_err());
+    }
+
+    #[test]
+    fn parse_install_builtins_conflicts_with_remote_install_flags() {
+        assert!(
+            Cli::try_parse_from(["coyote", "--install-builtins", "agents", "--install", "x"])
+                .is_err()
+        );
+        assert!(
+            Cli::try_parse_from([
+                "coyote",
+                "--install-builtins",
+                "agents",
+                "--install-from",
+                "y"
+            ])
+            .is_err()
+        );
+    }
+
+    #[test]
+    fn parse_filter_requires_a_remote_install_flag() {
+        assert!(Cli::try_parse_from(["coyote", "--filter", "agents"]).is_err());
+        assert_eq!(
+            parse(&["--install", "https://github.com/x/y", "--filter", "agents"]).filter,
+            Some(InstallFilter::Agents)
+        );
+        assert_eq!(
+            parse(&[
+                "--install-from",
+                "https://github.com/x/y",
+                "--filter",
+                "agents"
+            ])
+            .filter,
+            Some(InstallFilter::Agents)
+        );
+    }
+
+    #[test]
+    fn parse_install_force_requires_a_remote_install_flag() {
+        assert!(Cli::try_parse_from(["coyote", "--install-force"]).is_err());
+        assert!(parse(&["--install", "https://github.com/x/y", "--install-force"]).install_force);
+    }
+
+    #[test]
+    fn help_hides_install_from_and_shows_install_builtins() {
+        use clap::CommandFactory;
+        let help = Cli::command().render_long_help().to_string();
+        assert!(!help.contains("--install-from"), "help: {help}");
+        assert!(help.contains("--install-builtins"));
+    }
+
     #[test]
     fn parse_multiple_skill_flags_preserves_order() {
         assert_eq!(
diff --git a/src/config/bundles.rs b/src/config/bundles.rs
index 0c6d1b8..fc3b211 100644
--- a/src/config/bundles.rs
+++ b/src/config/bundles.rs
@@ -542,7 +542,7 @@ pub fn list_installed_bundles() -> Result<()> {
     let store = BundleStore::load()?;
     let rows = bundle_list_rows(&store, &paths::config_dir());
     if rows.is_empty() {
-        println!("No bundles installed. Install one with `coyote --install-from <git-url>`.");
+        println!("No bundles installed. Install one with `coyote --install <git-url>`.");
         return Ok(());
     }
 
diff --git a/src/config/install_remote.rs b/src/config/install_remote.rs
index 1eb28c8..9bf6a84 100644
--- a/src/config/install_remote.rs
+++ b/src/config/install_remote.rs
@@ -2,7 +2,7 @@ use super::bundles::{
     BundleStore, FileAction, FileRecord, InstallMetadata, McpAction, McpServerRecord, hash_bytes,
     hash_file,
 };
-use crate::config::{InstallFilter, paths};
+use crate::config::{AssetCategory, InstallFilter, paths};
 #[cfg(not(windows))]
 use crate::function::Language;
 use crate::mcp::{McpServer, McpServersConfig};
@@ -10,6 +10,7 @@ use crate::utils;
 use crate::utils::IS_STDOUT_TERMINAL;
 use crate::vault::{Vault, create_vault_password_file, interpolate_secrets};
 use anyhow::{Context, Result, anyhow, bail};
+use clap::ValueEnum;
 use indexmap::IndexMap;
 use indoc::formatdoc;
 use inquire::{Confirm, Select};
@@ -80,6 +81,14 @@ pub fn install_remote_from_repl_args(args: &str) -> Result<()> {
         )
     })?;
 
+    let (filter, force) = parse_repl_install_flags(".install remote", iter)?;
+    install_remote(&url, filter, force)
+}
+
+fn parse_repl_install_flags(
+    command: &str,
+    mut iter: impl Iterator<Item = String>,
+) -> Result<(Option<InstallFilter>, bool)> {
     let mut filter: Option<InstallFilter> = None;
     let mut force = false;
 
@@ -98,11 +107,117 @@ pub fn install_remote_from_repl_args(args: &str) -> Result<()> {
             s if s.starts_with("--filter=") => {
                 filter = Some(parse_filter(&s["--filter=".len()..])?);
             }
-            other => bail!("Unexpected argument to '.install remote': {other}"),
+            other => bail!("Unexpected argument to '{command}': {other}"),
         }
     }
 
-    install_remote(&url, filter, force)
+    Ok((filter, force))
+}
+
+#[derive(Debug, Clone, PartialEq)]
+enum InstallTarget {
+    Category(AssetCategory),
+    InstalledBundle,
+    RemoteSource,
+    Unknown,
+}
+
+fn classify_install_target(value: &str, installed_names: &[String]) -> InstallTarget {
+    if let Some(category) = AssetCategory::parse(value) {
+        return InstallTarget::Category(category);
+    }
+    let name = strip_ref_suffix(value);
+    if installed_names.iter().any(|installed| installed == name) {
+        return InstallTarget::InstalledBundle;
+    }
+    if looks_like_remote_source(value) {
+        return InstallTarget::RemoteSource;
+    }
+    InstallTarget::Unknown
+}
+
+/// A value is treated as a source when it is a URL, an scp-style
+/// `[user@]host:path`, or an explicit local path. Bare names never are: they
+/// must match an installed bundle.
+fn looks_like_remote_source(value: &str) -> bool {
+    if value.contains("://")
+        || value.starts_with("./")
+        || value.starts_with("../")
+        || value.starts_with('/')
+        || value.starts_with('~')
+    {
+        return true;
+    }
+    match value.split_once(':') {
+        Some((host, _)) => {
+            !host.is_empty() && !host.contains('/') && !host.chars().any(char::is_whitespace)
+        }
+        None => false,
+    }
+}
+
+/// Unified entry point behind `--install` and the REPL's `.install <value>`:
+/// asset categories are redirected to `--install-builtins`, installed bundle
+/// names become updates, and anything shaped like a source is installed.
+pub fn install_or_update(value: &str, filter: Option<InstallFilter>, force: bool) -> Result<()> {
+    let store = BundleStore::load()?;
+    let installed: Vec<String> = store
+        .bundle_names()
+        .into_iter()
+        .map(str::to_string)
+        .collect();
+
+    match classify_install_target(value, &installed) {
+        InstallTarget::Category(category) => {
+            let name = category
+                .to_possible_value()
+                .map_or_else(|| value.to_string(), |v| v.get_name().to_string());
+            let update_hint = if installed.iter().any(|installed| installed == value) {
+                format!(" To update the installed bundle '{value}', use `--update-bundle {value}`.")
+            } else {
+                String::new()
+            };
+            bail!(
+                "'{value}' is an asset category, not a bundle; did you mean \
+                 `--install-builtins {name}`? (categories are reinstalled from \
+                 the assets built into coyote, not from a remote){update_hint}"
+            );
+        }
+        InstallTarget::InstalledBundle => {
+            if filter.is_some() || force {
+                bail!("--filter/--install-force only apply to remote installs, not bundle updates");
+            }
+            update_bundle(value)
+        }
+        InstallTarget::RemoteSource => install_remote(value, filter, force),
+        InstallTarget::Unknown => {
+            let hint = "a remote source must be a git URL, an scp-style host:path, \
+                 or an explicit local path (./dir, /abs, ~)";
+            if installed.is_empty() {
+                bail!("no bundle named '{value}' is installed; none are installed ({hint})");
+            }
+            bail!(
+                "no bundle named '{value}' is installed; installed bundles: {} ({hint})",
+                installed.join(", ")
+            )
+        }
+    }
+}
+
+pub fn install_or_update_from_repl_args(args: &str) -> Result<()> {
+    let tokens = shell_words::split(args)
+        .with_context(|| format!("failed to parse '.install' args: {args}"))?;
+
+    let mut iter = tokens.into_iter();
+    let value = iter.next().with_context(|| {
+        format!(
+            "Usage: .install <git-url|installed-bundle> [--filter <{}>] [--force]",
+            InstallFilter::NAMES.join("|")
+        )
+    })?;
+
+    let (filter, force) = parse_repl_install_flags(".install", iter)?;
+    install_or_update(&value, filter, force)
 }
 
 /// Update an installed bundle from its recorded source. `spec` is the bundle
@@ -3461,6 +3576,160 @@ mod tests {
         let _ = fs::remove_dir_all(&src_root);
     }
 
+    fn owned_names(names: &[&str]) -> Vec<String> {
+        names.iter().map(|s| s.to_string()).collect()
+    }
+
+    #[test]
+    fn classify_urls_and_paths_as_remote_sources() {
+        for value in [
+            "https://github.com/x/y",
+            "git@github.com:x/y.git",
+            "./bundle-dir",
+            "../up",
+            "/abs/path",
+            "~/home-rel",
+        ] {
+            assert_eq!(
+                classify_install_target(value, &[]),
+                InstallTarget::RemoteSource,
+                "value: {value}"
+            );
+        }
+    }
+
+    #[test]
+    fn classify_categories_win_over_installed_names() {
+        assert_eq!(
+            classify_install_target("agents", &owned_names(&["agents"])),
+            InstallTarget::Category(AssetCategory::Agents)
+        );
+        assert_eq!(
+            classify_install_target("mcp_config", &[]),
+            InstallTarget::Category(AssetCategory::McpConfig)
+        );
+    }
+
+    #[test]
+    fn classify_installed_names_with_optional_ref() {
+        let installed = owned_names(&["omc"]);
+        assert_eq!(
+            classify_install_target("omc", &installed),
+            InstallTarget::InstalledBundle
+        );
+        assert_eq!(
+            classify_install_target("omc#v2", &installed),
+            InstallTarget::InstalledBundle
+        );
+    }
+
+    #[test]
+    fn classify_bare_names_without_a_match_as_unknown() {
+        assert_eq!(classify_install_target("omc", &[]), InstallTarget::Unknown);
+        assert_eq!(
+            classify_install_target("not-a-bundle", &owned_names(&["omc"])),
+            InstallTarget::Unknown
+        );
+    }
+
+    #[test]
+    #[serial]
+    fn install_or_update_redirects_categories_to_install_builtins() {
+        let _guard = TestVaultConfigGuard::new("iou-category");
+
+        let err = install_or_update("agents", None, false).unwrap_err();
+
+        assert!(
+            err.to_string().contains("--install-builtins agents"),
+            "got: {err}"
+        );
+    }
+
+    #[test]
+    #[serial]
+    fn install_or_update_unknown_name_lists_installed_bundles() {
+        let _guard = TestVaultConfigGuard::new("iou-unknown");
+
+        let err = install_or_update("not-a-bundle", None, false).unwrap_err();
+        assert!(err.to_string().contains("none are installed"), "got: {err}");
+
+        let src_root = fresh_temp_dir("iou-unknown-src-");
+        let repo = src_root.join("bundle");
+        write_src(&repo, BUNDLE_MANIFEST_FILE, "name: known-bundle\n");
+        write_src(&repo, "macros/m.yaml", "a: 1\n");
+        init_bundle_repo(&repo);
+        install_remote(repo.to_str().unwrap(), None, false).unwrap();
+
+        let err = install_or_update("not-a-bundle", None, false).unwrap_err();
+
+        assert!(
+            err.to_string().contains("no bundle named 'not-a-bundle'"),
+            "got: {err}"
+        );
+        assert!(
+            err.to_string().contains("installed bundles: known-bundle"),
+            "got: {err}"
+        );
+        let _ = fs::remove_dir_all(&src_root);
+    }
+
+    #[test]
+    #[serial]
+    fn install_or_update_category_error_hints_update_for_shadowed_bundle() {
+        let _guard = TestVaultConfigGuard::new("iou-shadow");
+
+        let mut store = BundleStore::load().unwrap();
+        store
+            .upsert_bundle(
+                "agents",
+                InstallMetadata {
+                    source: "https://github.com/x/agents".to_string(),
+                    git_ref: None,
+                    commit: "abc123".to_string(),
+                    version: None,
+                    description: None,
+                    homepage: None,
+                },
+            )
+            .unwrap();
+
+        let err = install_or_update("agents", None, false).unwrap_err();
+
+        assert!(
+            err.to_string().contains("--install-builtins agents"),
+            "got: {err}"
+        );
+        assert!(
+            err.to_string().contains("--update-bundle agents"),
+            "got: {err}"
+        );
+    }
+
+    #[test]
+    #[serial]
+    fn install_or_update_rejects_remote_flags_for_updates() {
+        let _guard = TestVaultConfigGuard::new("iou-flags");
+        let src_root = fresh_temp_dir("iou-flags-src-");
+        let repo = src_root.join("bundle");
+        write_src(&repo, BUNDLE_MANIFEST_FILE, "name: flag-bundle\n");
+        write_src(&repo, "macros/m.yaml", "a: 1\n");
+        init_bundle_repo(&repo);
+        install_remote(repo.to_str().unwrap(), None, false).unwrap();
+
+        let err = install_or_update("flag-bundle", Some(InstallFilter::Macros), false).unwrap_err();
+        assert!(
+            err.to_string().contains("only apply to remote installs"),
+            "got: {err}"
+        );
+
+        let err = install_or_update("flag-bundle", None, true).unwrap_err();
+        assert!(
+            err.to_string().contains("only apply to remote installs"),
+            "got: {err}"
+        );
+        let _ = fs::remove_dir_all(&src_root);
+    }
+
     fn owned_file_record(path: &str, contents: &str) -> FileRecord {
         FileRecord {
             path: path.to_string(),
diff --git a/src/config/mod.rs b/src/config/mod.rs
index e1d822e..a8ceb60 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -33,7 +33,8 @@ pub use self::app_state::AppState;
 pub use self::bundles::list_installed_bundles;
 pub use self::input::Input;
 pub use self::install_remote::{
-    install_remote, install_remote_from_repl_args, uninstall_bundle, update_bundle,
+    install_or_update, install_or_update_from_repl_args, install_remote,
+    install_remote_from_repl_args, uninstall_bundle, update_bundle,
 };
 pub use self::macro_policy::{
     MacroAllowlistLevel, MacroPolicy, MacroSource, MacroState, RESERVED_MACRO_NAMES, ResolvedMacro,
diff --git a/src/config/request_context.rs b/src/config/request_context.rs
index 9416dce..3b54b5d 100644
--- a/src/config/request_context.rs
+++ b/src/config/request_context.rs
@@ -3264,6 +3264,17 @@ impl RequestContext {
                     let mut values: Vec<String> =
                         AssetCategory::NAMES.iter().map(|s| s.to_string()).collect();
                     values.push("remote".to_string());
+                    values.extend(
+                        BundleStore::load()
+                            .map(|store| {
+                                store
+                                    .bundle_names()
+                                    .into_iter()
+                                    .map(str::to_string)
+                                    .collect::<Vec<_>>()
+                            })
+                            .unwrap_or_default(),
+                    );
                     super::map_completion_values(values)
                 }
                 ".uninstall" => {
@@ -4979,6 +4990,36 @@ mod tests {
         );
     }
 
+    #[test]
+    #[serial]
+    fn repl_complete_install_offers_categories_remote_and_bundles() {
+        let _guard = TestConfigDirGuard::new();
+        let mut store = BundleStore::load().unwrap();
+        store
+            .upsert_bundle(
+                "omc",
+                crate::config::bundles::InstallMetadata {
+                    source: "https://github.com/x/omc".to_string(),
+                    git_ref: None,
+                    commit: "abc123".to_string(),
+                    version: None,
+                    description: None,
+                    homepage: None,
+                },
+            )
+            .unwrap();
+        let ctx = create_test_ctx();
+
+        let values = ctx.repl_complete(".install", &[""], "");
+
+        for expected in ["agents", "remote", "omc"] {
+            assert!(
+                values.iter().any(|(name, _)| name == expected),
+                "missing '{expected}'; got: {values:?}"
+            );
+        }
+    }
+
     #[test]
     #[serial]
     fn exit_agent_clears_all_agent_state() {
diff --git a/src/main.rs b/src/main.rs
index 377e211..eb36f2d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -130,11 +130,18 @@ async fn main() -> Result<()> {
 
     install_builtins()?;
 
-    if let Some(category) = cli.install {
+    if let Some(category) = cli.install_builtins {
         return config::install_assets(category);
     }
 
+    if let Some(value) = cli.install.as_deref() {
+        return config::install_or_update(value, cli.filter, cli.install_force);
+    }
+
     if let Some(url) = cli.install_from.as_deref() {
+        eprintln!(
+            "warning: --install-from is deprecated and will be removed in a future release; use --install <GIT_URL>"
+        );
         return config::install_remote(url, cli.filter, cli.install_force);
     }
 
diff --git a/src/repl/mod.rs b/src/repl/mod.rs
index dfc209d..f67bfde 100644
--- a/src/repl/mod.rs
+++ b/src/repl/mod.rs
@@ -317,7 +317,7 @@ static REPL_COMMANDS: LazyLock<[ReplCommand; 61]> = LazyLock::new(|| {
         ),
         ReplCommand::new(
             ".install",
-            "Reinstall bundled assets, or install assets from a remote git repo (.install remote <url>)",
+            "Reinstall bundled assets, install a bundle from a git repo, or update an installed bundle",
             AssertState::pass(),
         ),
         ReplCommand::new(
@@ -870,27 +870,20 @@ pub async fn run_repl_command(
                     replay::render(app.as_ref(), &compressed, &active)?;
                 }
             }
-            ".install" => {
-                let trimmed = args.map(str::trim).unwrap_or("");
-                let mut parts = trimmed.splitn(2, char::is_whitespace);
-                match parts.next() {
-                    Some("remote") => {
-                        let rest = parts.next().unwrap_or("").trim();
-                        config::install_remote_from_repl_args(rest)?;
-                    }
-                    Some(name) if !name.is_empty() => match AssetCategory::parse(name) {
-                        Some(category) => config::install_assets(category)?,
-                        None => println!(
-                            "Unknown asset category '{name}'. Valid categories: {}",
-                            AssetCategory::NAMES.join(", ")
-                        ),
-                    },
-                    _ => println!(
-                        "Usage: .install <{}> | .install remote <git-url>",
-                        AssetCategory::NAMES.join("|")
-                    ),
+            ".install" => match parse_repl_install(args) {
+                ReplInstallDispatch::Builtins(category) => config::install_assets(category)?,
+                ReplInstallDispatch::Remote(rest) => {
+                    config::install_remote_from_repl_args(rest)?;
                 }
-            }
+                ReplInstallDispatch::Unified(value) => {
+                    config::install_or_update_from_repl_args(value)?;
+                }
+                ReplInstallDispatch::Usage => println!(
+                    "Usage: .install <{}> | .install <git-url|installed-bundle> | \
+                         .install remote <git-url> [--filter <cat>] [--force]",
+                    AssetCategory::NAMES.join("|")
+                ),
+            },
             ".update" => {
                 if ctx.macro_flag {
                     bail!("Cannot perform this operation because you are in a macro")
@@ -1581,6 +1574,27 @@ fn unknown_command() -> Result<()> {
     bail!(r#"Unknown command. Type ".help" for additional help."#);
 }
 
+#[derive(Debug, PartialEq)]
+enum ReplInstallDispatch<'a> {
+    Builtins(AssetCategory),
+    Remote(&'a str),
+    Unified(&'a str),
+    Usage,
+}
+
+fn parse_repl_install(args: Option<&str>) -> ReplInstallDispatch<'_> {
+    let trimmed = args.map(str::trim).unwrap_or("");
+    let mut parts = trimmed.splitn(2, char::is_whitespace);
+    match parts.next() {
+        Some("remote") => ReplInstallDispatch::Remote(parts.next().unwrap_or("").trim()),
+        Some(name) if !name.is_empty() => match AssetCategory::parse(name) {
+            Some(category) => ReplInstallDispatch::Builtins(category),
+            None => ReplInstallDispatch::Unified(trimmed),
+        },
+        _ => ReplInstallDispatch::Usage,
+    }
+}
+
 pub fn builtin_command_names() -> Vec<&'static str> {
     let mut names: Vec<&'static str> = REPL_COMMANDS
         .iter()
@@ -1806,6 +1820,36 @@ mod tests {
         assert_eq!(REPL_COMMANDS.len(), 61);
     }
 
+    #[test]
+    fn parse_repl_install_keeps_category_and_remote_back_compat() {
+        assert_eq!(
+            parse_repl_install(Some("agents")),
+            ReplInstallDispatch::Builtins(AssetCategory::Agents)
+        );
+        assert_eq!(
+            parse_repl_install(Some("remote https://x --force")),
+            ReplInstallDispatch::Remote("https://x --force")
+        );
+    }
+
+    #[test]
+    fn parse_repl_install_routes_other_values_to_unified_dispatch() {
+        assert_eq!(
+            parse_repl_install(Some("https://github.com/x/y")),
+            ReplInstallDispatch::Unified("https://github.com/x/y")
+        );
+        assert_eq!(
+            parse_repl_install(Some("my-bundle")),
+            ReplInstallDispatch::Unified("my-bundle")
+        );
+    }
+
+    #[test]
+    fn parse_repl_install_empty_args_ask_for_usage() {
+        assert_eq!(parse_repl_install(None), ReplInstallDispatch::Usage);
+        assert_eq!(parse_repl_install(Some("  ")), ReplInstallDispatch::Usage);
+    }
+
     #[test]
     fn builtin_command_names_are_sorted_deduped_first_words_without_dots() {
         let names = builtin_command_names();