src/cli.rs

@@ -68,7 +68,32 @@ pub enum Command {
         /// Only show agents of this category
         #[arg(long, value_name = "CATEGORY")]
         category: Option<String>,
+        /// Only show running agents
+        #[arg(long)]
+        running: bool,
+        /// Sort by name, version or status (default: name)
+        #[arg(long, value_name = "KEY")]
+        sort: Option<String>,
     },
+    /// Tail the log file of an agent (--follow for a live view)
+    Logs {
+        /// Agent name or alias
+        agent: String,
+        /// Number of lines to show (default: 20)
+        #[arg(long, value_name = "N", default_value = "20")]
+        lines: usize,
+        /// Follow the log as it grows
+        #[arg(long)]
+        follow: bool,
+    },
+    /// Open an agent's installation directory in the file manager
+    Open {
+        /// Agent name or alias
+        agent: String,
+    },
+    /// Manage command aliases (cc -> claude-code)
+    #[command(subcommand)]
+    Alias(AliasCmd),
     /// Start an agent (foreground by default, or detached with --background)
     Start(StartArgs),
     /// Stop a background agent (SIGTERM, then SIGKILL after the timeout)
@@ -284,6 +309,25 @@ pub struct StartArgs {
     pub notify: bool,
 }
 
+/// Alias management subcommands.
+#[derive(Subcommand, Debug, Clone)]
+pub enum AliasCmd {
+    /// Add an alias (am alias add cc claude-code)
+    Add {
+        /// Short name of the alias
+        name: String,
+        /// Agent name (or another alias) it points to
+        target: String,
+    },
+    /// Remove an alias
+    Remove {
+        /// Alias to remove
+        name: String,
+    },
+    /// List every alias
+    List,
+}
+
 /// Configuration management subcommands.
 #[derive(Subcommand, Debug, Clone)]
 pub enum ConfigCmd {
@@ -300,4 +344,11 @@ pub enum ConfigCmd {
         /// YAML (or JSON) file defining agents to include
         file: PathBuf,
     },
+    /// Set one configuration key without an editor (config set settings.default_shell pwsh)
+    Set {
+        /// Dotted key path, e.g. settings.default_shell
+        key: String,
+        /// New value (booleans and integers keep their type)
+        value: String,
+    },
 }

src/commands/alias_cmd.rs

@@ -0,0 +1,103 @@
+//! alias: manage command aliases (cc -> claude-code) in the user config.
+
+use super::*;
+use crate::cli::AliasCmd;
+use crate::output::print_json;
+use anyhow::{anyhow, Context, Result};
+use std::path::PathBuf;
+
+/// Ensure the user config file exists and return its path.
+fn user_config(app: &App) -> Result<PathBuf> {
+    let dir = app
+        .paths
+        .config_dir
+        .clone()
+        .ok_or_else(|| anyhow!("cannot determine the user config directory (no HOME set)"))?;
+    std::fs::create_dir_all(&dir)?;
+    let path = dir.join(crate::config::CONFIG_FILE_NAME);
+    if !path.exists() {
+        std::fs::write(&path, concat!("version: \"1.0\"\n", "agents: []\n"))
+            .with_context(|| format!("cannot create {}", path.display()))?;
+    }
+    Ok(path)
+}
+
+/// Read the aliases map from the user config file.
+fn read_aliases(app: &App) -> Result<(PathBuf, serde_yaml::Mapping)> {
+    let path = user_config(app)?;
+    let text = std::fs::read_to_string(&path)
+        .with_context(|| format!("cannot read {}", path.display()))?;
+    let mut value: serde_yaml::Value = serde_yaml::from_str(&text)
+        .with_context(|| format!("{} is not valid YAML", path.display()))?;
+    let mapping = value
+        .as_mapping_mut()
+        .ok_or_else(|| anyhow!("{} must contain a YAML mapping", path.display()))?;
+    let aliases = mapping
+        .entry(serde_yaml::Value::String("aliases".to_string()))
+        .or_insert_with(|| serde_yaml::Value::Mapping(Default::default()))
+        .as_mapping()
+        .cloned()
+        .unwrap_or_default();
+    Ok((path, aliases))
+}
+
+fn write_aliases(app: &App, path: &std::path::Path, aliases: serde_yaml::Mapping) -> Result<()> {
+    let text = std::fs::read_to_string(path)
+        .with_context(|| format!("cannot read {}", path.display()))?;
+    let mut value: serde_yaml::Value = serde_yaml::from_str(&text)
+        .with_context(|| format!("{} is not valid YAML", path.display()))?;
+    if let Some(mapping) = value.as_mapping_mut() {
+        mapping.insert(
+            serde_yaml::Value::String("aliases".to_string()),
+            serde_yaml::Value::Mapping(aliases),
+        );
+    }
+    std::fs::write(path, serde_yaml::to_string(&value)?)
+        .with_context(|| format!("cannot write {}", path.display()))
+}
+
+pub fn run(app: &App, sub: &AliasCmd) -> Result<i32> {
+    match sub {
+        AliasCmd::Add { name, target } => {
+            // The target must be a known agent (or another alias).
+            require_agent(app, target)?;
+            let (path, mut aliases) = read_aliases(app)?;
+            aliases.insert(
+                serde_yaml::Value::String(name.clone()),
+                serde_yaml::Value::String(target.clone()),
+            );
+            write_aliases(app, &path, aliases)?;
+            app.log.success(&format!("alias '{name}' -> '{target}'"));
+            Ok(0)
+        }
+        AliasCmd::Remove { name } => {
+            let (path, mut aliases) = read_aliases(app)?;
+            let removed = aliases
+                .remove(&serde_yaml::Value::String(name.clone()))
+                .is_some();
+            if removed {
+                write_aliases(app, &path, aliases)?;
+                app.log.success(&format!("alias '{name}' removed"));
+            } else {
+                app.log.info(&format!("alias '{name}' does not exist"));
+            }
+            Ok(0)
+        }
+        AliasCmd::List => {
+            if app.json() {
+                print_json(&app.config.aliases);
+                return Ok(0);
+            }
+            if app.config.aliases.is_empty() {
+                app.log.info("no aliases defined — 'am alias add cc claude-code'");
+                return Ok(0);
+            }
+            let mut table = crate::output::Table::new(vec!["ALIAS", "TARGET"]);
+            for (k, v) in &app.config.aliases {
+                table.row(vec![k.clone(), v.clone()]);
+            }
+            print!("{}", table.render());
+            Ok(0)
+        }
+    }
+}

src/commands/config_cmd.rs

@@ -5,6 +5,7 @@ use crate::cli::ConfigCmd;
 use crate::config;
 use crate::output::print_json;
 use anyhow::{anyhow, Context, Result};
+use clap::Parser;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 
@@ -94,9 +95,63 @@ pub fn run(app: &App, cmd: &ConfigCmd) -> Result<i32> {
             Ok(status.code().unwrap_or(1))
         }
         ConfigCmd::Add { file } => add_file(app, file),
+        ConfigCmd::Set { key, value } => set_value(app, key, value),
     }
 }
 
+/// config set: set one dotted key (e.g. settings.default_shell) in the user
+/// configuration file, then validate the result.
+pub fn set_value(app: &App, key: &str, value: &str) -> Result<i32> {
+    let path = user_config_path(app)?;
+    let text = std::fs::read_to_string(&path)
+        .with_context(|| format!("cannot read {}", path.display()))?;
+    let mut root: serde_yaml::Value = serde_yaml::from_str(&text)
+        .with_context(|| format!("{} is not valid YAML", path.display()))?;
+
+    let parts: Vec<&str> = key.split('.').collect();
+    if parts.is_empty() || parts.iter().any(|p| p.is_empty()) {
+        return Err(anyhow!("invalid key '{key}' — expected a dotted path like settings.default_shell"));
+    }
+    let parsed = parse_scalar(value);
+    let mut node = root
+        .as_mapping_mut()
+        .ok_or_else(|| anyhow!("{} must contain a YAML mapping", path.display()))?;
+    for part in &parts[..parts.len() - 1] {
+        let entry = node
+            .entry(serde_yaml::Value::String(part.to_string()))
+            .or_insert_with(|| serde_yaml::Value::Mapping(Default::default()));
+        node = entry
+            .as_mapping_mut()
+            .ok_or_else(|| anyhow!("'{part}' is not a mapping — cannot descend into it"))?;
+    }
+    node.insert(
+        serde_yaml::Value::String(parts.last().unwrap().to_string()),
+        parsed,
+    );
+    std::fs::write(&path, serde_yaml::to_string(&root)?)
+        .with_context(|| format!("cannot write {}", path.display()))?;
+
+    // Validate the new configuration end to end.
+    let cli = crate::cli::Cli::parse_from(["am", "--config", path.to_str().unwrap_or_default()]);
+    config::load(&cli).map_err(|e| {
+        anyhow!("the new value makes the configuration invalid: {e:#}")
+    })?;
+    app.log.success(&format!("{key} = {value}"));
+    Ok(0)
+}
+
+/// Parse a scalar: booleans and integers keep their type, everything else
+/// stays a string.
+fn parse_scalar(value: &str) -> serde_yaml::Value {
+    if let Ok(b) = value.parse::<bool>() {
+        return serde_yaml::Value::Bool(b);
+    }
+    if let Ok(i) = value.parse::<i64>() {
+        return serde_yaml::Value::Number(i.into());
+    }
+    serde_yaml::Value::String(value.to_string())
+}
+
 fn user_config_path_if_any(app: &App) -> Option<PathBuf> {
     app.paths
         .config_dir

src/commands/list_cmd.rs

@@ -25,7 +25,13 @@ struct AgentRow {
 }
 
 /// run: installed agents only, unless all is set (whole catalog).
-pub fn run(app: &App, all: bool, category: Option<&str>) -> Result<i32> {
+pub fn run(
+    app: &App,
+    all: bool,
+    category: Option<&str>,
+    running: bool,
+    sort: Option<&str>,
+) -> Result<i32> {
     let entries = app.state.all().unwrap_or_default();
     let probe = crate::probe::detect_externals(app);
     let mut rows: Vec<AgentRow> = Vec::new();
@@ -43,7 +49,15 @@ pub fn run(app: &App, all: bool, category: Option<&str>) -> Result<i32> {
     if !all {
         rows.retain(|r| r.status == "running" || r.status == "installed" || r.status == "external");
     }
-    rows.sort_by(|a, b| a.name.cmp(&b.name));
+    if running {
+        rows.retain(|r| r.status == "running");
+    }
+    match sort {
+        Some("version") => rows.sort_by(|a, b| b.version.cmp(&a.version)),
+        Some("status") => rows.sort_by(|a, b| a.status.cmp(&b.status)),
+        Some(other) => bail!("invalid sort key '{other}' — expected name, version or status"),
+        None => rows.sort_by(|a, b| a.name.cmp(&b.name)),
+    }
 
     if app.json() {
         print_json(&rows);

src/commands/logs_cmd.rs

@@ -0,0 +1,56 @@
+//! logs: tail the log file of an agent (--follow for a live view).
+
+use super::*;
+use crate::output::print_json;
+use anyhow::{bail, Result};
+use std::path::PathBuf;
+
+/// Resolve the log path of an agent (validates the agent first).
+pub fn log_path(app: &App, agent_name: &str) -> Result<PathBuf> {
+    let agent = require_agent(app, agent_name)?;
+    Ok(crate::process::agent_log_path(app, &agent.name))
+}
+
+pub fn run(app: &App, agent: &str, lines: usize, follow: bool) -> Result<i32> {
+    let path = log_path(app, agent)?;
+    if !path.exists() {
+        bail!(
+            "no log yet for '{}' — start it with 'am start {} --background'",
+            agent,
+            agent
+        );
+    }
+    if app.json() {
+        let tail = crate::process::last_lines(&path, lines);
+        print_json(&serde_json::json!({
+            "agent": agent,
+            "log": path.display().to_string(),
+            "tail": tail,
+        }));
+        return Ok(0);
+    }
+    if !follow {
+        print!("{}", crate::process::last_lines(&path, lines));
+        return Ok(0);
+    }
+    // Live follow: print the initial tail, then new bytes as they arrive.
+    let mut seen: usize = std::fs::metadata(&path).map(|m| m.len() as usize).unwrap_or(0);
+    loop {
+        if let Ok(text) = std::fs::read_to_string(&path) {
+            let bytes = text.as_bytes();
+            if bytes.len() > seen {
+                // Slicer sans risque de couper un caractere UTF-8.
+                let tail: String = text
+                    .char_indices()
+                    .filter(|(i, _)| *i >= seen)
+                    .map(|(_, c)| c)
+                    .collect();
+                print!("{tail}");
+                use std::io::Write;
+                let _ = std::io::stdout().flush();
+            }
+            seen = bytes.len();
+        }
+        std::thread::sleep(std::time::Duration::from_secs(1));
+    }
+}

src/commands/mod.rs

@@ -1,5 +1,6 @@
 //! Command implementations and dispatch.
 
+pub mod alias_cmd;
 pub mod completion_cmd;
 pub mod config_cmd;
 pub mod doctor_cmd;
@@ -11,6 +12,8 @@ pub mod init_cmd;
 pub mod install_cmd;
 pub mod list_cmd;
 pub mod log_cmd;
+pub mod logs_cmd;
+pub mod open_cmd;
 pub mod run_cmd;
 pub mod search_cmd;
 pub mod self_uninstall;
@@ -40,7 +43,19 @@ pub fn execute(app: &App) -> Result<i32> {
 /// Execute one parsed command (also used by the interactive shell).
 pub fn execute_command(app: &App, cmd: &Command) -> Result<i32> {
     match cmd {
-        Command::List { all, category } => list_cmd::run(app, *all, category.as_deref()),
+        Command::List {
+            all,
+            category,
+            running,
+            sort,
+        } => list_cmd::run(app, *all, category.as_deref(), *running, sort.as_deref()),
+        Command::Logs {
+            agent,
+            lines,
+            follow,
+        } => logs_cmd::run(app, agent, *lines, *follow),
+        Command::Open { agent } => open_cmd::run(app, agent),
+        Command::Alias(sub) => alias_cmd::run(app, sub),
         Command::Start(a) => run_cmd::start(app, a),
         Command::Stop {
             agent,

src/commands/open_cmd.rs

@@ -0,0 +1,42 @@
+//! open: open an agent's installation directory in the file manager.
+
+use super::*;
+use anyhow::{bail, Context, Result};
+use std::path::PathBuf;
+
+/// Resolve the directory to open: the managed install dir, or the parent of
+/// the detected external binary.
+pub fn resolve_target(app: &App, agent_name: &str) -> Result<PathBuf> {
+    let agent = require_agent(app, agent_name)?;
+    if let Some(entry) = app.state.get(&agent.name).ok().flatten() {
+        return Ok(PathBuf::from(&entry.install_dir));
+    }
+    let probe = crate::probe::detect_externals(app);
+    if let Some(bin) = probe.path_of(&agent.name) {
+        return Ok(bin
+            .parent()
+            .map(|p| p.to_path_buf())
+            .unwrap_or_else(|| bin.clone()));
+    }
+    bail!("agent '{}' is not installed — run 'am install {}' first", agent_name, agent_name);
+}
+
+pub fn run(app: &App, agent: &str) -> Result<i32> {
+    let target = resolve_target(app, agent)?;
+    if app.dry_run() {
+        app.log.dry(format!("would open {}", target.display()));
+        return Ok(0);
+    }
+    if !target.exists() {
+        bail!("directory {} does not exist", target.display());
+    }
+    #[cfg(windows)]
+    let opened = std::process::Command::new("explorer").arg(&target).status();
+    #[cfg(target_os = "macos")]
+    let opened = std::process::Command::new("open").arg(&target).status();
+    #[cfg(all(unix, not(target_os = "macos")))]
+    let opened = std::process::Command::new("xdg-open").arg(&target).status();
+    opened
+        .with_context(|| format!("cannot open {}", target.display()))?;
+    Ok(0)
+}

src/help.rs

@@ -238,6 +238,60 @@ pub static HELP_SPECS: &[HelpSpec] = &[
             HelpExample { desc: "Starts of one agent since a date.", code: "log claude-code --kind start --since 2026-08-01" },
         ],
     },
+    HelpSpec {
+        name: "logs",
+        category: "Commands",
+        usage: "logs {flags} <agent>",
+        about: "Tail the log file of an agent.",
+        search_terms: &["tail", "follow", "output"],
+        flags: &[
+            HelpFlag { short: "", long: "--lines", value: "N", desc: "Number of lines to show (default: 20)" },
+            HelpFlag { short: "", long: "--follow", value: "", desc: "Follow the log as it grows" },
+        ],
+        subcommands: &[],
+        parameters: &[
+            HelpParam { name: "agent", typ: "string", desc: "Agent name or alias" },
+        ],
+        io: None,
+        examples: &[
+            HelpExample { desc: "The last 20 lines.", code: "logs claude-code" },
+            HelpExample { desc: "A live view.", code: "logs claude-code --follow" },
+        ],
+    },
+    HelpSpec {
+        name: "open",
+        category: "Commands",
+        usage: "open {flags} <agent>",
+        about: "Open an agent's installation directory in the file manager.",
+        search_terms: &["explorer", "folder", "directory"],
+        flags: &[],
+        subcommands: &[],
+        parameters: &[
+            HelpParam { name: "agent", typ: "string", desc: "Agent name or alias" },
+        ],
+        io: None,
+        examples: &[
+            HelpExample { desc: "Open the install directory.", code: "open claude-code" },
+        ],
+    },
+    HelpSpec {
+        name: "alias",
+        category: "Commands",
+        usage: "alias {flags} <add|remove|list> [name] [target]",
+        about: "Manage command aliases (cc -> claude-code) without editing the YAML.",
+        search_terms: &["shortcut", "rename"],
+        flags: &[],
+        subcommands: &[
+            ("add", "Add an alias pointing to an agent"),
+            ("remove", "Remove an alias"),
+        ],
+        parameters: &[],
+        io: None,
+        examples: &[
+            HelpExample { desc: "Shortcut for claude-code.", code: "alias add cc claude-code" },
+            HelpExample { desc: "List every alias.", code: "alias list" },
+        ],
+    },
     HelpSpec {
         name: "history",
         category: "Commands",

src/history.rs

@@ -104,11 +104,17 @@ pub fn migrate(app: &App) -> Result<usize> {
     let text = std::fs::read_to_string(&txt)
         .with_context(|| format!("cannot read {}", txt.display()))?;
     let mut count = 0;
+    let mut previous: Option<String> = None;
     for line in text.lines() {
         let trimmed = line.trim();
         if trimmed.is_empty() || trimmed.starts_with('#') {
             continue;
         }
+        // Déduplication des répétitions consécutives (quick win #13).
+        if previous.as_deref() == Some(trimmed) {
+            continue;
+        }
+        previous = Some(trimmed.to_string());
         let entry = HistoryEntry::now(trimmed.to_string())
             .with_kind("am".to_string())
             .with_cwd(None);

src/repl.rs

@@ -63,8 +63,11 @@ const COMMAND_DESCRIPTIONS: &[(&str, &str)] = &[
     ("sessions", "list agent sessions"),
     ("stats", "usage statistics"),
     ("log", "read the event journal"),
+    ("logs", "tail an agent log"),
     ("history", "search command history"),
     ("init", "generate a project config"),
+    ("alias", "manage aliases"),
+    ("open", "open the install dir"),
     ("search", "search the catalog"),
     ("info", "agent details"),
     ("install", "install an agent"),
@@ -141,7 +144,7 @@ impl AmCompleter {
         Self {
             theme: std::cell::Cell::new(crate::theme::default_theme()),
             commands: vec![
-                "list", "status", "sessions", "stats", "log", "history", "init", "search", "info", "install", "uninstall", "update",
+                "list", "status", "sessions", "stats", "log", "logs", "history", "init", "alias", "open", "search", "info", "install", "uninstall", "update",
                 "start", "stop", "restart", "run", "doctor", "config", "completion",
                 "self-update", "self-uninstall", "export", "import", "shell", "theme",
                 "ls", "dir", "cd", "ps", "where", "get", "help", "version", "exit",
@@ -1196,6 +1199,30 @@ fn handle_line(
         "list" => Command::List {
             all: flag("--all"),
             category: None,
+            running: flag("--running"),
+            sort: opt_value("--sort"),
+        },
+        "logs" => Command::Logs {
+            agent: need("agent name")?,
+            lines: opt_value("--lines").and_then(|v| v.parse().ok()).unwrap_or(20),
+            follow: flag("--follow"),
+        },
+        "open" => Command::Open {
+            agent: need("agent name")?,
+        },
+        "alias" => match rest.first().map(|s| s.as_str()) {
+            Some("add") if rest.len() >= 3 => Command::Alias(crate::cli::AliasCmd::Add {
+                name: rest[1].clone(),
+                target: rest[2].clone(),
+            }),
+            Some("remove") if rest.len() >= 2 => Command::Alias(crate::cli::AliasCmd::Remove {
+                name: rest[1].clone(),
+            }),
+            Some("list") | None => Command::Alias(crate::cli::AliasCmd::List),
+            _ => {
+                app.log.error("usage: alias add <name> <target> | alias remove <name> | alias list");
+                return Ok(false);
+            }
         },
         "status" => Command::Status {
             agent: rest.first().cloned(),
@@ -1333,8 +1360,11 @@ fn is_am_command(word: &str) -> bool {
             | "sessions"
             | "stats"
             | "log"
+            | "logs"
             | "history"
             | "init"
+            | "alias"
+            | "open"
             | "search"
             | "info"
             | "install"

tests/quick_wins_test.rs

@@ -0,0 +1,115 @@
+//! Quick wins: logs, list filters, config set, alias, open, history dedup.
+
+mod common;
+
+use agent_manager::commands::{alias_cmd, config_cmd, logs_cmd, open_cmd};
+use agent_manager::state::InstalledEntry;
+use std::path::PathBuf;
+
+fn installed(app: &agent_manager::app::App, name: &str, dir: &PathBuf) {
+    let entry = InstalledEntry {
+        name: name.to_string(),
+        version: Some("1.0.0".to_string()),
+        method: "binary".to_string(),
+        install_dir: dir.display().to_string(),
+        bins: vec![],
+        run: name.to_string(),
+        installed_at: "2026-01-01T00:00:00Z".to_string(),
+        updated_at: None,
+        pid: None,
+        started_at: None,
+    };
+    app.state.set(&entry).unwrap();
+}
+
+#[test]
+fn list_sorts_and_filters_running() {
+    use agent_manager::commands::list_cmd;
+    let app = common::test_app("listqw", &["list", "--all"]);
+    let dir = app.paths.install_dir.join("x");
+    installed(&app, "jcode", &dir);
+    let code = list_cmd::run(&app, true, None, true, None).unwrap();
+    assert_eq!(code, 0, "--running sur un parc arrete donne une liste vide");
+    let code = list_cmd::run(&app, true, None, false, Some("version")).unwrap();
+    assert_eq!(code, 0);
+    assert!(list_cmd::run(&app, true, None, false, Some("bogus")).is_err());
+}
+
+#[test]
+fn logs_tail_reads_the_agent_log() {
+    let app = common::test_app("logs", &["logs", "jcode"]);
+    let dir = app.paths.log_dir.clone();
+    std::fs::create_dir_all(&dir).unwrap();
+    std::fs::write(dir.join("jcode.log"), "ligne 1
+ligne 2
+").unwrap();
+    let code = logs_cmd::run(&app, "jcode", 20, false).unwrap();
+    assert_eq!(code, 0);
+    assert_eq!(logs_cmd::log_path(&app, "jcode").unwrap(), dir.join("jcode.log"));
+    assert!(logs_cmd::run(&app, "inconnu", 20, false).is_err());
+}
+
+#[test]
+fn config_set_writes_and_validates() {
+    let app = common::test_app("cfgset", &["config", "set", "settings.default_shell", "pwsh"]);
+    let code = config_cmd::set_value(&app, "settings.default_shell", "pwsh").unwrap();
+    assert_eq!(code, 0);
+    let cfg_path = app.paths.config_dir.as_ref().unwrap().join("config.yaml");
+    let text = std::fs::read_to_string(&cfg_path).unwrap();
+    assert!(text.contains("pwsh"), "cle ecrite: {text}");
+    // Une cle inconnue du schema est rejetee a la validation.
+    assert!(config_cmd::set_value(&app, "settings.cle_inconnue", "x").is_err());
+}
+
+#[test]
+fn alias_add_list_remove() {
+    let app = common::test_app("alias", &["alias", "add", "cc", "claude-code"]);
+    let code = alias_cmd::run(&app, &agent_manager::cli::AliasCmd::Add {
+        name: "cc".to_string(),
+        target: "claude-code".to_string(),
+    })
+    .unwrap();
+    assert_eq!(code, 0);
+    let cfg_path = app.paths.config_dir.as_ref().unwrap().join("config.yaml");
+    let text = std::fs::read_to_string(&cfg_path).unwrap();
+    assert!(text.contains("cc: claude-code"), "alias ecrit: {text}");
+    let code = alias_cmd::run(&app, &agent_manager::cli::AliasCmd::List).unwrap();
+    assert_eq!(code, 0);
+    let code = alias_cmd::run(&app, &agent_manager::cli::AliasCmd::Remove {
+        name: "cc".to_string(),
+    })
+    .unwrap();
+    assert_eq!(code, 0);
+    // Cible inconnue refuse.
+    assert!(alias_cmd::run(
+        &app,
+        &agent_manager::cli::AliasCmd::Add {
+            name: "zz".to_string(),
+            target: "agent-inconnu".to_string(),
+        }
+    )
+    .is_err());
+}
+
+#[test]
+fn open_resolves_install_dir() {
+    let app = common::test_app("open", &["open", "jcode"]);
+    let dir = app.paths.install_dir.join("jcode");
+    std::fs::create_dir_all(&dir).unwrap();
+    installed(&app, "jcode", &dir);
+    let target = open_cmd::resolve_target(&app, "jcode").unwrap();
+    assert_eq!(target, dir);
+    assert!(open_cmd::resolve_target(&app, "inconnu").is_err());
+}
+
+#[test]
+fn history_migration_dedups_consecutive() {
+    use agent_manager::history;
+    let app = common::test_app("dedup", &["history"]);
+    let txt = app.paths.state_file.with_file_name("history.txt");
+    std::fs::write(&txt, "install jcode
+install jcode
+list
+").unwrap();
+    assert_eq!(history::migrate(&app).unwrap(), 2, "doublons consecutifs sautes");
+}