diff --git a/cli-config.yaml.example b/cli-config.yaml.example
index 069472380..7e308d0a2 100644
--- a/cli-config.yaml.example
+++ b/cli-config.yaml.example
@@ -181,7 +181,87 @@ agent:
 # Control which tools the agent has access to.
 # Use "all" to enable everything, or specify individual toolsets.
 
-# Available toolsets:
+# =============================================================================
+# Platform Toolsets (per-platform tool configuration)
+# =============================================================================
+# Override which toolsets are available on each platform.
+# If a platform isn't listed here, its built-in default is used.
+#
+# You can use EITHER:
+#   - A preset like "hermes-cli" or "hermes-telegram" (curated tool set)
+#   - A list of individual toolsets to compose your own (see list below)
+#
+# Supported platform keys: cli, telegram, discord, whatsapp, slack
+#
+# Examples:
+#
+#   # Use presets (same as defaults):
+#   platform_toolsets:
+#     cli: [hermes-cli]
+#     telegram: [hermes-telegram]
+#
+#   # Custom: give Telegram only web + terminal + file + planning:
+#   platform_toolsets:
+#     telegram: [web, terminal, file, todo]
+#
+#   # Custom: CLI without browser or image gen:
+#   platform_toolsets:
+#     cli: [web, terminal, file, skills, todo, tts, cronjob]
+#
+#   # Restrictive: Discord gets read-only tools only:
+#   platform_toolsets:
+#     discord: [web, vision, skills, todo]
+#
+# If not set, defaults are:
+#   cli:      hermes-cli      (everything + cronjob management)
+#   telegram: hermes-telegram  (terminal, file, web, vision, image, tts, browser, skills, todo, cronjob, messaging)
+#   discord:  hermes-discord   (same as telegram)
+#   whatsapp: hermes-whatsapp  (same as telegram)
+#   slack:    hermes-slack     (same as telegram)
+#
+platform_toolsets:
+  cli: [hermes-cli]
+  telegram: [hermes-telegram]
+  discord: [hermes-discord]
+  whatsapp: [hermes-whatsapp]
+  slack: [hermes-slack]
+
+# ─────────────────────────────────────────────────────────────────────────────
+# Available toolsets (use these names in platform_toolsets or the toolsets list)
+#
+# Run `hermes chat --list-toolsets` to see all toolsets and their tools.
+# Run `hermes chat --list-tools` to see every individual tool with descriptions.
+# ─────────────────────────────────────────────────────────────────────────────
+#
+# INDIVIDUAL TOOLSETS (compose your own):
+#   web          - web_search, web_extract
+#   search       - web_search only (no scraping)
+#   terminal     - terminal, process
+#   file         - read_file, write_file, patch, search
+#   browser      - browser_navigate, browser_snapshot, browser_click, browser_type,
+#                  browser_scroll, browser_back, browser_press, browser_close,
+#                  browser_get_images, browser_vision  (requires BROWSERBASE_API_KEY)
+#   vision       - vision_analyze  (requires OPENROUTER_API_KEY)
+#   image_gen    - image_generate  (requires FAL_KEY)
+#   skills       - skills_list, skill_view
+#   moa          - mixture_of_agents  (requires OPENROUTER_API_KEY)
+#   todo         - todo (in-memory task planning, no deps)
+#   tts          - text_to_speech  (Edge TTS free, or ELEVENLABS/OPENAI key)
+#   cronjob      - schedule_cronjob, list_cronjobs, remove_cronjob
+#   rl           - rl_list_environments, rl_start_training, etc. (requires TINKER_API_KEY)
+#
+# PRESETS (curated bundles):
+#   hermes-cli       - All of the above except rl + send_message
+#   hermes-telegram  - terminal, file, web, vision, image_gen, tts, browser,
+#                      skills, todo, cronjob, send_message
+#   hermes-discord   - Same as hermes-telegram
+#   hermes-whatsapp  - Same as hermes-telegram
+#   hermes-slack     - Same as hermes-telegram
+#
+# COMPOSITE:
+#   debugging    - terminal + web + file
+#   safe         - web + vision + moa (no terminal access)
+#   all          - Everything available
 #
 #   web          - Web search and content extraction (web_search, web_extract)
 #   search       - Web search only, no scraping (web_search)
diff --git a/cli.py b/cli.py
index 939a450f3..8d72f3a61 100755
--- a/cli.py
+++ b/cli.py
@@ -1862,8 +1862,12 @@ def main(
                 else:
                     toolsets_list.append(str(t))
     else:
-        # Default: use hermes-cli toolset for full CLI functionality including cronjob tools
-        toolsets_list = ["hermes-cli"]
+        # Check config for CLI toolsets, fallback to hermes-cli
+        config_cli_toolsets = CLI_CONFIG.get("platform_toolsets", {}).get("cli")
+        if config_cli_toolsets and isinstance(config_cli_toolsets, list):
+            toolsets_list = config_cli_toolsets
+        else:
+            toolsets_list = ["hermes-cli"]
     
     # Create CLI instance
     cli = HermesCLI(
diff --git a/gateway/run.py b/gateway/run.py
index 674d3493f..69d45c86f 100644
--- a/gateway/run.py
+++ b/gateway/run.py
@@ -818,14 +818,44 @@ class GatewayRunner:
         from run_agent import AIAgent
         import queue
         
-        # Determine toolset based on platform
-        toolset_map = {
+        # Determine toolset based on platform.
+        # Check config.yaml for per-platform overrides, fallback to hardcoded defaults.
+        default_toolset_map = {
             Platform.LOCAL: "hermes-cli",
             Platform.TELEGRAM: "hermes-telegram",
             Platform.DISCORD: "hermes-discord",
             Platform.WHATSAPP: "hermes-whatsapp",
+            Platform.SLACK: "hermes-slack",
         }
-        toolset = toolset_map.get(source.platform, "hermes-telegram")
+        
+        # Try to load platform_toolsets from config
+        platform_toolsets_config = {}
+        try:
+            config_path = Path.home() / '.hermes' / 'config.yaml'
+            if config_path.exists():
+                import yaml
+                with open(config_path, 'r') as f:
+                    user_config = yaml.safe_load(f) or {}
+                platform_toolsets_config = user_config.get("platform_toolsets", {})
+        except Exception:
+            pass
+        
+        # Map platform enum to config key
+        platform_config_key = {
+            Platform.LOCAL: "cli",
+            Platform.TELEGRAM: "telegram",
+            Platform.DISCORD: "discord",
+            Platform.WHATSAPP: "whatsapp",
+            Platform.SLACK: "slack",
+        }.get(source.platform, "telegram")
+        
+        # Use config override if present (list of toolsets), otherwise hardcoded default
+        config_toolsets = platform_toolsets_config.get(platform_config_key)
+        if config_toolsets and isinstance(config_toolsets, list):
+            enabled_toolsets = config_toolsets
+        else:
+            default_toolset = default_toolset_map.get(source.platform, "hermes-telegram")
+            enabled_toolsets = [default_toolset]
         
         # Check if tool progress notifications are enabled
         tool_progress_enabled = os.getenv("HERMES_TOOL_PROGRESS", "").lower() in ("1", "true", "yes")
@@ -944,7 +974,7 @@ class GatewayRunner:
                 model=os.getenv("HERMES_MODEL", "anthropic/claude-opus-4.6"),
                 max_iterations=max_iterations,
                 quiet_mode=True,
-                enabled_toolsets=[toolset],
+                enabled_toolsets=enabled_toolsets,
                 ephemeral_system_prompt=context_prompt,
                 session_id=session_id,
                 tool_progress_callback=progress_callback if tool_progress_enabled else None,