diff --git a/VERSION b/VERSION
index de197cc3..a95f2884 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.1.3
+4.1.4
diff --git a/bin/ccs.js b/bin/ccs.js
index a88cc491..1aeedf4e 100755
--- a/bin/ccs.js
+++ b/bin/ccs.js
@@ -126,9 +126,9 @@ function handleHelpCommand() {
 
   // Description
   console.log(colored('Description:', 'cyan'));
-  console.log('  Switch between multiple Claude accounts (work, personal, team) and');
-  console.log('  alternative models (GLM, Kimi) instantly. Concurrent sessions with');
-  console.log('  auto-recovery. Zero downtime.');
+  console.log('  Switch between multiple Claude accounts and alternative models');
+  console.log('  (GLM, Kimi) instantly. Run different Claude CLI sessions concurrently');
+  console.log('  with auto-recovery. Zero downtime.');
   console.log('');
 
   // Model Switching
@@ -144,17 +144,13 @@ function handleHelpCommand() {
   // Account Management
   console.log(colored('Account Management:', 'cyan'));
   console.log(`  ${colored('ccs auth --help', 'yellow')}             Manage multiple Claude accounts`);
-  console.log(`  ${colored('ccs work', 'yellow')}                    Switch to work account`);
-  console.log(`  ${colored('ccs personal', 'yellow')}                Switch to personal account`);
   console.log('');
 
-  // Delegation (NEW)
-  console.log(colored('Delegation (Token Optimization):', 'cyan'));
-  console.log(`  ${colored('/ccs:glm "task"', 'yellow')}             Delegate to GLM-4.6 within Claude session`);
+  // Delegation (inside Claude Code CLI)
+  console.log(colored('Delegation (inside Claude Code CLI):', 'cyan'));
+  console.log(`  ${colored('/ccs:glm "task"', 'yellow')}             Delegate to GLM-4.6 for simple tasks`);
   console.log(`  ${colored('/ccs:kimi "task"', 'yellow')}            Delegate to Kimi for long context`);
-  console.log(`  ${colored('/ccs:create m2', 'yellow')}              Create custom delegation command`);
-  console.log('  Use delegation to save tokens on simple tasks');
-  console.log('  Commands work inside Claude Code sessions only');
+  console.log('  Save tokens by delegating simple tasks to cost-optimized models');
   console.log('');
 
   // Diagnostics
@@ -189,13 +185,8 @@ function handleHelpCommand() {
 
   // Examples
   console.log(colored('Examples:', 'cyan'));
-  console.log('  Quick start:');
-  console.log(`    ${colored('$ ccs', 'yellow')}                        # Use default account`);
-  console.log(`    ${colored('$ ccs glm "implement API"', 'yellow')}    # Cost-optimized model`);
-  console.log('');
-  console.log('  Multi-account workflow:');
-  console.log(`    ${colored('$ ccs auth create work', 'yellow')}       # Create work profile`);
-  console.log(`    ${colored('$ ccs work "review PR"', 'yellow')}       # Use work account`);
+  console.log(`  ${colored('$ ccs', 'yellow')}                        # Use default account`);
+  console.log(`  ${colored('$ ccs glm "implement API"', 'yellow')}    # Cost-optimized model`);
   console.log('');
   console.log(`  For more: ${colored('https://github.com/kaitranntt/ccs#usage', 'cyan')}`);
   console.log('');
diff --git a/bin/utils/shell-completion.js b/bin/utils/shell-completion.js
index c7575ff9..b2fc3024 100644
--- a/bin/utils/shell-completion.js
+++ b/bin/utils/shell-completion.js
@@ -52,6 +52,34 @@ class ShellCompletionInstaller {
     });
   }
 
+  /**
+   * Safely create directory, checking for file conflicts
+   * @param {string} dirPath - Path to create
+   * @throws {Error} If path exists but is a file
+   */
+  ensureDirectory(dirPath) {
+    if (fs.existsSync(dirPath)) {
+      const stat = fs.statSync(dirPath);
+      if (!stat.isDirectory()) {
+        throw new Error(
+          `Cannot create directory: ${dirPath} exists but is a file.\n` +
+          `Please remove or rename this file and try again.`
+        );
+      }
+      // Directory exists, nothing to do
+      return;
+    }
+
+    // Check parent directories recursively
+    const parentDir = path.dirname(dirPath);
+    if (parentDir !== dirPath) {
+      this.ensureDirectory(parentDir);
+    }
+
+    // Create the directory
+    fs.mkdirSync(dirPath);
+  }
+
   /**
    * Install bash completion
    */
@@ -97,10 +125,8 @@ class ShellCompletionInstaller {
       throw new Error('Completion file not found. Please reinstall CCS.');
     }
 
-    // Create zsh completion directory
-    if (!fs.existsSync(zshCompDir)) {
-      fs.mkdirSync(zshCompDir, { recursive: true });
-    }
+    // Create zsh completion directory (with file conflict checking)
+    this.ensureDirectory(zshCompDir);
 
     // Copy to zsh completion directory
     const destFile = path.join(zshCompDir, '_ccs');
@@ -142,10 +168,8 @@ class ShellCompletionInstaller {
       throw new Error('Completion file not found. Please reinstall CCS.');
     }
 
-    // Create fish completion directory
-    if (!fs.existsSync(fishCompDir)) {
-      fs.mkdirSync(fishCompDir, { recursive: true });
-    }
+    // Create fish completion directory (with file conflict checking)
+    this.ensureDirectory(fishCompDir);
 
     // Copy to fish completion directory (fish auto-loads from here)
     const destFile = path.join(fishCompDir, 'ccs.fish');
@@ -178,11 +202,9 @@ class ShellCompletionInstaller {
     const sourceCmd = `. "${completionPath.replace(/\\/g, '\\\\')}"`;
     const block = `\n${marker}\n${sourceCmd}\n`;
 
-    // Create profile directory if needed
+    // Create profile directory if needed (with file conflict checking)
     const profileDir = path.dirname(profilePath);
-    if (!fs.existsSync(profileDir)) {
-      fs.mkdirSync(profileDir, { recursive: true });
-    }
+    this.ensureDirectory(profileDir);
 
     // Check if already installed
     if (fs.existsSync(profilePath)) {
diff --git a/installers/install.ps1 b/installers/install.ps1
index 9e306584..ae24b4e0 100644
--- a/installers/install.ps1
+++ b/installers/install.ps1
@@ -31,7 +31,7 @@ $InstallMethod = if ($ScriptDir -and ((Test-Path "$ScriptDir\lib\ccs.ps1") -or (
 # IMPORTANT: Update this version when releasing new versions!
 # This hardcoded version is used for standalone installations (irm | iex)
 # For git installations, VERSION file is read if available
-$CcsVersion = "4.1.3"
+$CcsVersion = "4.1.4"
 
 # Try to read VERSION file for git installations
 if ($ScriptDir) {
diff --git a/installers/install.sh b/installers/install.sh
index 3c79d054..959de55d 100755
--- a/installers/install.sh
+++ b/installers/install.sh
@@ -32,7 +32,7 @@ fi
 # IMPORTANT: Update this version when releasing new versions!
 # This hardcoded version is used for standalone installations (curl | bash)
 # For git installations, VERSION file is read if available
-CCS_VERSION="4.1.3"
+CCS_VERSION="4.1.4"
 
 # Try to read VERSION file for git installations
 if [[ -f "$SCRIPT_DIR/VERSION" ]]; then
diff --git a/lib/ccs b/lib/ccs
index 8114fa15..63700176 100755
--- a/lib/ccs
+++ b/lib/ccs
@@ -2,7 +2,7 @@
 set -euo pipefail
 
 # Version (updated by scripts/bump-version.sh)
-CCS_VERSION="4.1.3"
+CCS_VERSION="4.1.4"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 readonly CONFIG_FILE="${CCS_CONFIG:-$HOME/.ccs/config.json}"
 readonly PROFILES_JSON="$HOME/.ccs/profiles.json"
@@ -171,9 +171,9 @@ show_help() {
   echo -e "  ${YELLOW}ccs${RESET} [flags]"
   echo ""
   echo -e "${CYAN}Description:${RESET}"
-  echo -e "  Switch between multiple Claude accounts (work, personal, team) and"
-  echo -e "  alternative models (GLM, Kimi) instantly. Concurrent sessions with"
-  echo -e "  auto-recovery. Zero downtime."
+  echo -e "  Switch between multiple Claude accounts and alternative models"
+  echo -e "  (GLM, Kimi) instantly. Run different Claude CLI sessions concurrently"
+  echo -e "  with auto-recovery. Zero downtime."
   echo ""
   echo -e "${CYAN}Model Switching:${RESET}"
   echo -e "  ${YELLOW}ccs${RESET}                         Use default Claude account"
@@ -184,15 +184,11 @@ show_help() {
   echo ""
   echo -e "${CYAN}Account Management:${RESET}"
   echo -e "  ${YELLOW}ccs auth --help${RESET}             Manage multiple Claude accounts"
-  echo -e "  ${YELLOW}ccs work${RESET}                    Switch to work account"
-  echo -e "  ${YELLOW}ccs personal${RESET}                Switch to personal account"
   echo ""
-  echo -e "${CYAN}Delegation (Token Optimization):${RESET}"
-  echo -e "  ${YELLOW}/ccs:glm \"task\"${RESET}             Delegate to GLM-4.6 within Claude session"
+  echo -e "${CYAN}Delegation (inside Claude Code CLI):${RESET}"
+  echo -e "  ${YELLOW}/ccs:glm \"task\"${RESET}             Delegate to GLM-4.6 for simple tasks"
   echo -e "  ${YELLOW}/ccs:kimi \"task\"${RESET}            Delegate to Kimi for long context"
-  echo -e "  ${YELLOW}/ccs:create m2${RESET}              Create custom delegation command"
-  echo -e "  Use delegation to save tokens on simple tasks"
-  echo -e "  Commands work inside Claude Code sessions only"
+  echo -e "  Save tokens by delegating simple tasks to cost-optimized models"
   echo ""
   echo -e "${CYAN}Diagnostics:${RESET}"
   echo -e "  ${YELLOW}ccs doctor${RESET}                  Run health check and diagnostics"
@@ -214,13 +210,8 @@ show_help() {
   echo -e "  Note: Commands, skills, and agents are symlinked across all profiles"
   echo ""
   echo -e "${CYAN}Examples:${RESET}"
-  echo -e "  Quick start:"
-  echo -e "    ${YELLOW}\$ ccs${RESET}                        # Use default account"
-  echo -e "    ${YELLOW}\$ ccs glm \"implement API\"${RESET}    # Cost-optimized model"
-  echo ""
-  echo -e "  Multi-account workflow:"
-  echo -e "    ${YELLOW}\$ ccs auth create work${RESET}       # Create work profile"
-  echo -e "    ${YELLOW}\$ ccs work \"review PR\"${RESET}       # Use work account"
+  echo -e "  ${YELLOW}\$ ccs${RESET}                        # Use default account"
+  echo -e "  ${YELLOW}\$ ccs glm \"implement API\"${RESET}    # Cost-optimized model"
   echo ""
   echo -e "  For more: ${CYAN}https://github.com/kaitranntt/ccs#usage${RESET}"
   echo ""
diff --git a/lib/ccs.ps1 b/lib/ccs.ps1
index 2ba84c95..72bf770b 100644
--- a/lib/ccs.ps1
+++ b/lib/ccs.ps1
@@ -12,7 +12,7 @@ param(
 $ErrorActionPreference = "Stop"
 
 # Version (updated by scripts/bump-version.sh)
-$CcsVersion = "4.1.3"
+$CcsVersion = "4.1.4"
 $ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 $ConfigFile = if ($env:CCS_CONFIG) { $env:CCS_CONFIG } else { "$env:USERPROFILE\.ccs\config.json" }
 $ProfilesJson = "$env:USERPROFILE\.ccs\profiles.json"
@@ -218,9 +218,9 @@ function Show-Help {
     Write-ColorLine "  ccs [flags]" "Yellow"
     Write-Host ""
     Write-ColorLine "Description:" "Cyan"
-    Write-Host "  Switch between multiple Claude accounts (work, personal, team) and"
-    Write-Host "  alternative models (GLM, Kimi) instantly. Concurrent sessions with"
-    Write-Host "  auto-recovery. Zero downtime."
+    Write-Host "  Switch between multiple Claude accounts and alternative models"
+    Write-Host "  (GLM, Kimi) instantly. Run different Claude CLI sessions concurrently"
+    Write-Host "  with auto-recovery. Zero downtime."
     Write-Host ""
     Write-ColorLine "Model Switching:" "Cyan"
     Write-ColorLine "  ccs                         Use default Claude account" "Yellow"
@@ -230,22 +230,18 @@ function Show-Help {
     Write-ColorLine "  ccs glm 'debug this code'   Use GLM and run command" "Yellow"
     Write-Host ""
     Write-ColorLine "Examples:" "Cyan"
-    Write-Host "  Quick start:"
-    Write-ColorLine "    `$ ccs" "Yellow" -NoNewline
+    Write-ColorLine "  `$ ccs" "Yellow" -NoNewline
     Write-Host "                        # Use default account"
-    Write-ColorLine "    `$ ccs glm `"implement API`"" "Yellow" -NoNewline
+    Write-ColorLine "  `$ ccs glm `"implement API`"" "Yellow" -NoNewline
     Write-Host "    # Cost-optimized model"
     Write-Host ""
-    Write-Host "  Profile usage:"
-    Write-ColorLine "    `$ ccs work `"debug code`"" "Yellow" -NoNewline
-    Write-Host "      # Switch to work profile"
-    Write-ColorLine "    `$ ccs personal" "Yellow" -NoNewline
-    Write-Host "                # Open personal account"
-    Write-Host ""
     Write-ColorLine "Account Management:" "Cyan"
     Write-ColorLine "  ccs auth --help             Manage multiple Claude accounts" "Yellow"
-    Write-ColorLine "  ccs work                    Switch to work account" "Yellow"
-    Write-ColorLine "  ccs personal                Switch to personal account" "Yellow"
+    Write-Host ""
+    Write-ColorLine "Delegation (inside Claude Code CLI):" "Cyan"
+    Write-ColorLine "  /ccs:glm `"task`"             Delegate to GLM-4.6 for simple tasks" "Yellow"
+    Write-ColorLine "  /ccs:kimi `"task`"            Delegate to Kimi for long context" "Yellow"
+    Write-Host "  Save tokens by delegating simple tasks to cost-optimized models"
     Write-Host ""
     Write-ColorLine "Diagnostics:" "Cyan"
     Write-ColorLine "  ccs doctor                  Run health check and diagnostics" "Yellow"
diff --git a/package.json b/package.json
index dcc61b66..c9114536 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "4.1.3",
+  "version": "4.1.4",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",
diff --git a/scripts/completion/ccs.bash b/scripts/completion/ccs.bash
index f3eaa5a5..39fbcd67 100644
--- a/scripts/completion/ccs.bash
+++ b/scripts/completion/ccs.bash
@@ -19,7 +19,7 @@ _ccs_completion() {
   # Top-level completion (first argument)
   if [[ ${COMP_CWORD} -eq 1 ]]; then
     local commands="auth doctor"
-    local flags="--help --version -h -v"
+    local flags="--help --version --shell-completion -h -v"
     local profiles=""
 
     # Add profiles from config.json (settings-based profiles)
@@ -74,6 +74,12 @@ _ccs_completion() {
     return 0
   fi
 
+  # Flags for shell-completion command
+  if [[ ${prev} == "--shell-completion" ]]; then
+    COMPREPLY=( $(compgen -W "--bash --zsh --fish --powershell" -- ${cur}) )
+    return 0
+  fi
+
   return 0
 }
 
diff --git a/scripts/completion/ccs.fish b/scripts/completion/ccs.fish
index 4a5b8295..c43e6dde 100644
--- a/scripts/completion/ccs.fish
+++ b/scripts/completion/ccs.fish
@@ -9,22 +9,41 @@
 #   Fish will automatically load completions from this directory.
 #   No need to source or reload - completions are loaded on demand.
 
-# Helper function to get profiles
-function __fish_ccs_get_profiles
+# Helper function to get settings profiles
+function __fish_ccs_get_settings_profiles
     set -l config_path ~/.ccs/config.json
-    set -l profiles_path ~/.ccs/profiles.json
 
     # Get settings-based profiles from config.json
     if test -f $config_path
         jq -r '.profiles | keys[]' $config_path 2>/dev/null
     end
+end
 
-    # Get account-based profiles from profiles.json
-    if test -f $profiles_path
-        jq -r '.profiles | keys[]' $profiles_path 2>/dev/null
+# Helper function to get custom/unknown settings profiles
+# (profiles not in the hardcoded known list)
+function __fish_ccs_get_custom_settings_profiles
+    set -l config_path ~/.ccs/config.json
+    set -l known_profiles default glm glmt kimi
+
+    # Get all settings profiles
+    if test -f $config_path
+        set -l all_profiles (jq -r '.profiles | keys[]' $config_path 2>/dev/null)
+
+        # Filter out known profiles
+        for profile in $all_profiles
+            if not contains $profile $known_profiles
+                echo $profile
+            end
+        end
     end
 end
 
+# Helper function to get profiles with all types
+function __fish_ccs_get_profiles
+    __fish_ccs_get_settings_profiles
+    __fish_ccs_get_account_profiles
+end
+
 # Helper function to get account profiles only
 function __fish_ccs_get_account_profiles
     set -l profiles_path ~/.ccs/profiles.json
@@ -51,13 +70,29 @@ complete -c ccs -f
 # Top-level flags
 complete -c ccs -s h -l help -d 'Show help message'
 complete -c ccs -s v -l version -d 'Show version information'
+complete -c ccs -l shell-completion -d 'Install shell completion'
 
-# Top-level commands
-complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'auth' -d 'Manage multiple Claude accounts'
-complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'doctor' -d 'Run health check and diagnostics'
+# Top-level commands (blue color for commands)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'auth' -d (set_color blue)'Manage multiple Claude accounts'(set_color normal)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'doctor' -d (set_color blue)'Run health check and diagnostics'(set_color normal)
 
-# Top-level profile completion (all profiles)
-complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a '(__fish_ccs_get_profiles)' -d 'Switch to profile'
+# Top-level known settings profiles (green color for model profiles)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'default' -d (set_color green)'Default Claude Sonnet 4.5'(set_color normal)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'glm' -d (set_color green)'GLM-4.6 (cost-optimized)'(set_color normal)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'glmt' -d (set_color green)'GLM-4.6 with thinking mode'(set_color normal)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a 'kimi' -d (set_color green)'Kimi for Coding (long-context)'(set_color normal)
+
+# Top-level custom settings profiles (dynamic, with generic description in green)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a '(__fish_ccs_get_custom_settings_profiles)' -d (set_color green)'Settings-based profile'(set_color normal)
+
+# Top-level account profiles (dynamic, yellow color for account profiles)
+complete -c ccs -n 'not __fish_seen_subcommand_from auth doctor' -a '(__fish_ccs_get_account_profiles)' -d (set_color yellow)'Account profile'(set_color normal)
+
+# shell-completion subflags
+complete -c ccs -n '__fish_seen_argument -l shell-completion' -l bash -d 'Install for bash'
+complete -c ccs -n '__fish_seen_argument -l shell-completion' -l zsh -d 'Install for zsh'
+complete -c ccs -n '__fish_seen_argument -l shell-completion' -l fish -d 'Install for fish'
+complete -c ccs -n '__fish_seen_argument -l shell-completion' -l powershell -d 'Install for PowerShell'
 
 # auth subcommands
 complete -c ccs -n '__fish_ccs_using_auth; and not __fish_seen_subcommand_from create list show remove default' -a 'create' -d 'Create new profile and login'
diff --git a/scripts/completion/ccs.ps1 b/scripts/completion/ccs.ps1
index dd7aee4a..75bd4646 100644
--- a/scripts/completion/ccs.ps1
+++ b/scripts/completion/ccs.ps1
@@ -12,8 +12,9 @@
 Register-ArgumentCompleter -CommandName ccs -ScriptBlock {
     param($commandName, $wordToComplete, $commandAst, $fakeBoundParameters)
 
-    $commands = @('auth', 'doctor', '--help', '--version', '-h', '-v')
+    $commands = @('auth', 'doctor', '--help', '--version', '--shell-completion', '-h', '-v')
     $authCommands = @('create', 'list', 'show', 'remove', 'default', '--help', '-h')
+    $shellCompletionFlags = @('--bash', '--zsh', '--fish', '--powershell')
     $listFlags = @('--verbose', '--json')
     $removeFlags = @('--yes', '-y')
     $showFlags = @('--json')
@@ -67,6 +68,21 @@ Register-ArgumentCompleter -CommandName ccs -ScriptBlock {
         return
     }
 
+    # shell-completion flag completion
+    if ($words[1] -eq '--shell-completion') {
+        if ($position -eq 3) {
+            $shellCompletionFlags | Where-Object { $_ -like "$wordToComplete*" } | ForEach-Object {
+                [System.Management.Automation.CompletionResult]::new(
+                    $_,
+                    $_,
+                    'ParameterValue',
+                    $_
+                )
+            }
+        }
+        return
+    }
+
     # auth subcommand completion
     if ($words[1] -eq 'auth') {
         if ($position -eq 3) {
diff --git a/scripts/completion/ccs.zsh b/scripts/completion/ccs.zsh
index ae263f59..3e1102e4 100644
--- a/scripts/completion/ccs.zsh
+++ b/scripts/completion/ccs.zsh
@@ -12,41 +12,75 @@
 #   Or install system-wide:
 #     sudo cp scripts/completion/ccs.zsh /usr/local/share/zsh/site-functions/_ccs
 
+# Set up completion styles for better formatting and colors
+# Color codes: 0;34=blue, 0;32=green, 0;33=yellow, 2;37=dim white
+# Pattern format: =(#b)(group1)(group2)==color_for_group1=color_for_group2
+# The leading '=' means no color for whole match, then each '=' assigns to each group
+zstyle ':completion:*:*:ccs:*:commands' list-colors '=(#b)(auth|doctor)([[:space:]]#--[[:space:]]#*)==0\;34=2\;37'
+zstyle ':completion:*:*:ccs:*:model-profiles' list-colors '=(#b)(default|glm|glmt|kimi|[^[:space:]]##)([[:space:]]#--[[:space:]]#*)==0\;32=2\;37'
+zstyle ':completion:*:*:ccs:*:account-profiles' list-colors '=(#b)([^[:space:]]##)([[:space:]]#--[[:space:]]#*)==0\;33=2\;37'
+zstyle ':completion:*:*:ccs:*' group-name ''
+zstyle ':completion:*:*:ccs:*:descriptions' format $'\n%B%F{yellow}── %d ──%f%b'
+zstyle ':completion:*:*:ccs:*' list-separator '  --  '
+zstyle ':completion:*:*:ccs:*' list-rows-first true
+zstyle ':completion:*:*:ccs:*' menu select
+
 _ccs() {
-  local -a commands profiles settings_profiles account_profiles
+  local -a commands settings_profiles_described account_profiles_described
   local curcontext="$curcontext" state line
   typeset -A opt_args
 
-  # Define top-level commands
+  # Define top-level commands (padded for alignment)
   commands=(
     'auth:Manage multiple Claude accounts'
     'doctor:Run health check and diagnostics'
   )
 
+  # Define known settings profiles with descriptions (consistent padding)
+  local -A profile_descriptions
+  profile_descriptions=(
+    'default' 'Default Claude Sonnet 4.5'
+    'glm'     'GLM-4.6 (cost-optimized)'
+    'glmt'    'GLM-4.6 with thinking mode'
+    'kimi'    'Kimi for Coding (long-context)'
+  )
+
   # Load settings-based profiles from config.json
   if [[ -f ~/.ccs/config.json ]]; then
-    settings_profiles=(${(f)"$(jq -r '.profiles | keys[]' ~/.ccs/config.json 2>/dev/null)"})
+    local -a raw_settings_profiles
+    raw_settings_profiles=(${(f)"$(jq -r '.profiles | keys[]' ~/.ccs/config.json 2>/dev/null)"})
+
+    # Add descriptions to settings profiles
+    for profile in $raw_settings_profiles; do
+      local desc="${profile_descriptions[$profile]:-Settings-based profile}"
+      settings_profiles_described+=("${profile}:${desc}")
+    done
   fi
 
   # Load account-based profiles from profiles.json
   if [[ -f ~/.ccs/profiles.json ]]; then
-    account_profiles=(${(f)"$(jq -r '.profiles | keys[]' ~/.ccs/profiles.json 2>/dev/null)"})
-  fi
+    local -a raw_account_profiles
+    raw_account_profiles=(${(f)"$(jq -r '.profiles | keys[]' ~/.ccs/profiles.json 2>/dev/null)"})
 
-  # Combine all profiles
-  profiles=($settings_profiles $account_profiles)
+    # Add descriptions to account profiles
+    for profile in $raw_account_profiles; do
+      account_profiles_described+=("${profile}:Account-based profile")
+    done
+  fi
 
   _arguments -C \
     '(- *)'{-h,--help}'[Show help message]' \
     '(- *)'{-v,--version}'[Show version information]' \
+    '(- *)--shell-completion[Install shell completion]' \
     '1: :->command' \
     '*:: :->args'
 
   case $state in
     command)
-      local -a all_options
-      all_options=($commands $profiles)
-      _describe -t commands 'ccs commands' all_options
+      # Describe commands and profiles with proper tagging for colors
+      _describe -t commands 'commands' commands
+      _describe -t model-profiles 'model profiles' settings_profiles_described
+      _describe -t account-profiles 'account profiles' account_profiles_described
       ;;
 
     args)
@@ -58,6 +92,13 @@ _ccs() {
           _arguments \
             '(- *)'{-h,--help}'[Show help for doctor command]'
           ;;
+        --shell-completion)
+          _arguments \
+            '--bash[Install for bash]' \
+            '--zsh[Install for zsh]' \
+            '--fish[Install for fish]' \
+            '--powershell[Install for PowerShell]'
+          ;;
         *)
           # For profile names, complete with Claude CLI arguments
           _message 'Claude CLI arguments'