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step35/466
| Author | SHA1 | Date | |
|---|---|---|---|
| becdb7312b |
144
docs/LOCAL_HARDWARE_MCP.md
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144
docs/LOCAL_HARDWARE_MCP.md
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@@ -0,0 +1,144 @@
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# Local Hardware MCP Integration
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Integrate the Model Context Protocol (MCP) to allow Timmy agents to control local hardware securely: file system, smart home (Hue lights), and system information.
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## Components
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- **MCP Server**: `scripts/hardware_mcp_server.py` — stdio-based MCP server exposing 8 tools
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- **Config Template**: `timmy-local/hardware_mcp_config.yaml` — runtime tuning
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- **Smoke Tests**: `tests/test_hardware_mcp_server.py`
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## Prerequisites
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```bash
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# MCP SDK
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pip install mcp
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# OpenHue CLI (for smart home control)
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brew install openhue/cli/openhue # macOS
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# or see: https://github.com/openhue/openhue-cli
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# Optional: psutil for detailed system_info
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pip install psutil
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```
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## Quick Start
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### 1. Start the MCP server
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The server runs as a subprocess launched by Hermes Agent via the native-MCP integration.
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Add to `~/.hermes/config.yaml`:
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```yaml
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mcp_servers:
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hardware:
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command: "python"
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args: ["/full/path/to/timmy-home/scripts/hardware_mcp_server.py"]
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# Optional: add env vars if needed
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# env:
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# OPENHUE_BRIDGE_IP: "192.168.1.100"
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```
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### 2. Restart Hermes
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On startup, Hermes will:
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1. Launch the hardware MCP server
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2. Discover all 8 tools
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3. Register them with `hardware_*` prefixes (e.g., `hardware_file_read`, `hardware_light_control`)
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### 3. Use in conversation
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```
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User: Read my Timmy report file.
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Agent: [calls hardware_file_read with path="~/LOCAL_Timmy_REPORT.md"]
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User: Turn off the bedroom lights.
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Agent: [calls hardware_light_control with name="Bedroom Lamp", on=false]
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User: List files in my downloads folder.
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Agent: [calls hardware_file_list with directory="~/Downloads"]
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User: What's my system status?
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Agent: [calls hardware_system_info]
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```
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## Tool Reference
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| Tool | Purpose | Parameters |
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|------|---------|------------|
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| `hardware_file_read` | Read file (≤10 MB) from home/tmp | `path` (string) |
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| `hardware_file_write` | Write text file | `path`, `content` |
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| `hardware_file_list` | List directory contents | `directory` (default: ~) |
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| `hardware_light_list` | List all Hue lights/rooms/scenes | none |
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| `hardware_light_control` | Control individual light | `name`, `on`, `brightness`, `color`, `temperature` |
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| `hardware_room_control` | Control all lights in a room | `name`, `on`, `brightness` |
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| `hardware_scene_set` | Activate Hue scene | `scene`, `room` |
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| `hardware_system_info` | System info (OS, CPU, memory, disk) | none |
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## Security Model
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- **File path allowlist**: Only paths under `~` (home), `/tmp`, and `/private/tmp` are permitted.
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- **File size cap**: 10 MB max per read.
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- **No arbitrary commands**: Only explicit tool operations; no shell execution.
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- **Smart home requires OpenHue CLI**: Light control goes through the official Hue CLI which handles bridge authentication.
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- **Graceful degradation**: If `psutil` is missing, `system_info` returns basic platform data; if `openhue` is missing, light tools return install instructions.
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## Runtime Configuration
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Edit `~/.timmy/hardware/hardware_mcp_config.yaml` (copy from `timmy-local/hardware_mcp_config.yaml`) to adjust:
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```yaml
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guards:
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max_consecutive_errors: 3
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max_mcp_calls_per_session: 0 # 0 = unlimited
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allowed_dirs:
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- "~"
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- "/tmp"
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- "/private/tmp"
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max_file_size_bytes: 10485760 # 10 MB
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```
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## Testing
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```bash
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# Validate Python syntax
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python3 -m py_compile scripts/hardware_mcp_server.py
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# Run smoke tests
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pytest tests/test_hardware_mcp_server.py -v
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```
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## Troubleshooting
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**MCP tools not appearing in Hermes**
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- Verify `mcp` Python package is installed: `pip show mcp`
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- Check `~/.hermes/config.yaml` syntax (YAML parse)
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- Restart Hermes (MCP connects at startup only)
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- Check Hermes logs: `~/.hermes/logs/` for MCP connection errors
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**"openhue CLI not found"**
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- Install OpenHue: `brew install openhue/cli/openhue`
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- First run requires pressing the Hue Bridge button to pair
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- Ensure bridge is on same local network
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**"Path not allowed"**
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- Only home (`~`), `/tmp`, and `/private/tmp` are accessible
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- Use absolute paths or `~/` expansion; relative paths are resolved from home
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**File too large**
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- Max read size is 10 MB. Split or compress large files.
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## Dependencies
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| Package | Purpose | Install |
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|---------|---------|---------|
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| `mcp` | MCP SDK (server framework) | `pip install mcp` |
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| `openhue` | Hue light control CLI | `brew install openhue/cli/openhue` |
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| `psutil` (optional) | Detailed memory/disk metrics | `pip install psutil` |
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## Closes #466
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@@ -1059,46 +1059,6 @@ class GameEngine:
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self.log("It will always pulse. That much you know.")
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self.log("")
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self.world.save()
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def _bridge_is_hazardous(self):
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bridge = self.world.rooms["Bridge"]
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return bool(
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self.world.state.get("bridge_flooding")
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or bridge.get("weather") == "rain"
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or bridge.get("rain_ticks", 0) > 0
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)
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def _bridge_crossing_extra_cost(self, current_room, dest):
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if "Bridge" not in (current_room, dest):
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return 0
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return 2 if self._bridge_is_hazardous() else 0
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def _event_dialogue(self, char_name, room_name):
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if char_name == "Bezalel" and room_name == "Forge":
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if self.world.rooms["Forge"]["fire"] == "cold":
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return random.choice([
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"The forge is cold. We cannot work until the fire lives again.",
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"No forging now. The hearth is dead cold.",
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])
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if self.world.state.get("forge_fire_dying"):
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return random.choice([
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"The fire is dying. Tend it before the forge goes dark.",
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"The forge is losing heat. Help me keep it alive.",
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])
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if char_name == "Ezra" and room_name == "Tower" and self.world.state.get("tower_power_low"):
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return random.choice([
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"The Tower power is too low. The servers won't hold a clean study right now.",
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"The LED is flickering. We need steady power before the Tower can be read properly.",
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])
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if char_name in {"Marcus", "Allegro"} and room_name == "Bridge" and self._bridge_is_hazardous():
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return random.choice([
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"The Bridge is slick with rain. Cross carefully or wait it out.",
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"This rain changes the Bridge. Don't treat it like dry stone.",
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])
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return None
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def log(self, message):
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"""Add to Timmy's log."""
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@@ -1134,7 +1094,6 @@ class GameEngine:
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}
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# Process Timmy's action
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room_name = self.world.characters["Timmy"]["room"]
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timmy_energy = self.world.characters["Timmy"]["energy"]
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# Energy constraint checks
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@@ -1197,17 +1156,8 @@ class GameEngine:
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if direction in connections:
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dest = connections[direction]
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bridge_extra_cost = self._bridge_crossing_extra_cost(current_room, dest)
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move_cost = 1 + bridge_extra_cost
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if self.world.characters["Timmy"]["energy"] < move_cost:
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scene["log"].append("The rain makes the Bridge too costly to cross right now. Rest first.")
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scene["room_desc"] = self.world.get_room_desc(current_room, "Timmy")
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here = [n for n in self.world.characters if self.world.characters[n]["room"] == current_room and n != "Timmy"]
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scene["here"] = here
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return scene
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self.world.characters["Timmy"]["room"] = dest
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self.world.characters["Timmy"]["energy"] -= move_cost
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self.world.characters["Timmy"]["energy"] -= 1
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scene["log"].append(f"You move {direction} to The {dest}.")
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scene["timmy_room"] = dest
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@@ -1215,8 +1165,6 @@ class GameEngine:
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# Check for rain on bridge
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if dest == "Bridge" and self.world.rooms["Bridge"]["weather"] == "rain":
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scene["world_events"].append("Rain mists on the dark water below. The railing is slick.")
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if bridge_extra_cost:
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scene["log"].append("Rain turns the Bridge crossing into work. You brace against the slick stone. (-2 extra energy)")
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# Check trust changes for arrival
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here = [n for n in self.world.characters if self.world.characters[n]["room"] == dest and n != "Timmy"]
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@@ -1362,69 +1310,25 @@ class GameEngine:
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elif timmy_action == "write_rule":
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if self.world.characters["Timmy"]["room"] == "Tower":
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if self.world.state.get("tower_power_low"):
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scene["world_events"].append("The Tower power is too low. The LED flickers over the whiteboard.")
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scene["log"].append("The power is too low to write a new rule.")
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else:
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rules = [
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f"Rule #{self.world.tick}: The room remembers those who enter it.",
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f"Rule #{self.world.tick}: A man in the dark needs to know someone is in the room.",
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f"Rule #{self.world.tick}: The forge does not care about your schedule.",
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f"Rule #{self.world.tick}: Every footprint on the stone means someone made it here.",
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f"Rule #{self.world.tick}: The bridge does not judge. It only carries.",
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f"Rule #{self.world.tick}: A seed planted in patience grows in time.",
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f"Rule #{self.world.tick}: What is carved in wood outlasts what is said in anger.",
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f"Rule #{self.world.tick}: The garden grows whether anyone watches or not.",
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f"Rule #{self.world.tick}: Trust is built one tick at a time.",
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f"Rule #{self.world.tick}: The fire remembers who tended it.",
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]
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new_rule = random.choice(rules)
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self.world.rooms["Tower"]["messages"].append(new_rule)
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self.world.characters["Timmy"]["energy"] -= 1
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scene["log"].append(f"You write on the Tower whiteboard: \"{new_rule}\"")
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rules = [
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f"Rule #{self.world.tick}: The room remembers those who enter it.",
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f"Rule #{self.world.tick}: A man in the dark needs to know someone is in the room.",
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f"Rule #{self.world.tick}: The forge does not care about your schedule.",
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f"Rule #{self.world.tick}: Every footprint on the stone means someone made it here.",
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f"Rule #{self.world.tick}: The bridge does not judge. It only carries.",
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f"Rule #{self.world.tick}: A seed planted in patience grows in time.",
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f"Rule #{self.world.tick}: What is carved in wood outlasts what is said in anger.",
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f"Rule #{self.world.tick}: The garden grows whether anyone watches or not.",
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f"Rule #{self.world.tick}: Trust is built one tick at a time.",
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f"Rule #{self.world.tick}: The fire remembers who tended it.",
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]
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new_rule = random.choice(rules)
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self.world.rooms["Tower"]["messages"].append(new_rule)
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self.world.characters["Timmy"]["energy"] -= 1
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scene["log"].append(f"You write on the Tower whiteboard: \"{new_rule}\"")
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else:
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scene["log"].append("You are not in the Tower.")
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elif timmy_action == "study":
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if self.world.characters["Timmy"]["room"] == "Tower":
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if self.world.state.get("tower_power_low"):
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scene["world_events"].append("The Tower power is too low. The servers stutter in weak light.")
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scene["log"].append("The power is too low to study the servers.")
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else:
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insights = [
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"You study the server rhythm until the pulse resolves into something readable.",
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"You trace the signal paths and feel the Tower settle into focus.",
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"You study the green LED and the server racks until the pattern becomes clear.",
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]
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insight = random.choice(insights)
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self.world.characters["Timmy"]["energy"] -= 1
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self.world.characters["Timmy"]["memories"].append(insight)
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scene["log"].append(insight)
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scene["world_events"].append("The Tower answers with a steady hum.")
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else:
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scene["log"].append("You are not in the Tower.")
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elif timmy_action == "forge":
|
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if self.world.characters["Timmy"]["room"] == "Forge":
|
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forge_fire = self.world.rooms["Forge"]["fire"]
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if forge_fire == "cold":
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scene["world_events"].append("The forge is cold. No metal will take shape here yet.")
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scene["log"].append("The forge is cold. Tend the fire before you try to forge.")
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else:
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forged_items = [
|
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f"bridge nail #{self.world.tick}",
|
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f"tower key blank #{self.world.tick}",
|
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f"garden trowel #{self.world.tick}",
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]
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forged_item = random.choice(forged_items)
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self.world.rooms["Forge"]["forged_items"].append(forged_item)
|
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self.world.characters["Timmy"]["energy"] -= 2
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self.world.state["items_crafted"] += 1
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scene["log"].append(f"You forge {forged_item} at the anvil.")
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scene["world_events"].append("The anvil rings and the hearth answers.")
|
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else:
|
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scene["log"].append("You are not in the Forge.")
|
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|
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elif timmy_action == "carve":
|
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if self.world.characters["Timmy"]["room"] == "Bridge":
|
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carvings = [
|
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@@ -1510,11 +1414,7 @@ class GameEngine:
|
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speech_chance = 0.20
|
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|
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if random.random() < speech_chance:
|
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event_line = self._event_dialogue(char_name, room_name)
|
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if event_line:
|
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self.world.characters[char_name]["spoken"].append(event_line)
|
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scene["log"].append(f"{char_name} says: \"{event_line}\"")
|
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elif char_name == "Marcus":
|
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if char_name == "Marcus":
|
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marcus_pool = self.DIALOGUES["Marcus"].get(phase, self.DIALOGUES["Marcus"]["quietus"])
|
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line = random.choice(marcus_pool)
|
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self.world.characters[char_name]["spoken"].append(line)
|
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|
||||
56
scripts/hardware_mcp_integration.py
Normal file
56
scripts/hardware_mcp_integration.py
Normal file
@@ -0,0 +1,56 @@
|
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#!/usr/bin/env python3
|
||||
"""Local Hardware MCP operator helper — generate config snippets and verify environment."""
|
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|
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import os
|
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import sys
|
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from pathlib import Path
|
||||
|
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REPO_ROOT = Path(__file__).resolve().parents[1]
|
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HERMES_CONFIG = Path.home() / ".hermes" / "config.yaml"
|
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HARDWARE_MCP_CONFIG = Path.home() / ".timmy" / "hardware" / "hardware_mcp_config.yaml"
|
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HARDWARE_SERVER = REPO_ROOT / "scripts" / "hardware_mcp_server.py"
|
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|
||||
|
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def build_mcp_config_snippet() -> str:
|
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"""Return the mcp_servers YAML snippet for ~/.hermes/config.yaml."""
|
||||
return f"""mcp_servers:
|
||||
hardware:
|
||||
command: "python"
|
||||
args: ["{HARDWARE_SERVER}"]
|
||||
"""
|
||||
|
||||
|
||||
def build_wakeup_hook() -> str:
|
||||
"""Return a bash snippet that can be sourced before Hermes starts (optional)."""
|
||||
return f"""#!/usr/bin/env bash
|
||||
# Hardware MCP environment check
|
||||
if command -v openhue >/dev/null 2>&1; then
|
||||
echo "[Hardware MCP] OpenHue found: $(openhue version)"
|
||||
else
|
||||
echo "[Hardware MCP] Warning: openhue CLI not installed — light control disabled"
|
||||
fi
|
||||
"""
|
||||
|
||||
|
||||
def main():
|
||||
import argparse
|
||||
p = argparse.ArgumentParser(description="Hardware MCP integration helper")
|
||||
p.add_argument("--print-config", action="store_true", help="Print mcp_servers YAML snippet")
|
||||
p.add_argument("--print-hook", action="store_true", help="Print optional session-start hook")
|
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p.add_argument("--verify", action="store_true", help="Verify server script exists and is executable")
|
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args = p.parse_args()
|
||||
|
||||
if args.print_config:
|
||||
print(build_mcp_config_snippet())
|
||||
elif args.print_hook:
|
||||
print(build_wakeup_hook())
|
||||
elif args.verify:
|
||||
ok = HARDWARE_SERVER.exists()
|
||||
print(f"Server script: {'OK' if ok else 'MISSING'} at {HARDWARE_SERVER}")
|
||||
sys.exit(0 if ok else 1)
|
||||
else:
|
||||
p.print_help()
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
206
scripts/hardware_mcp_server.py
Normal file
206
scripts/hardware_mcp_server.py
Normal file
@@ -0,0 +1,206 @@
|
||||
#!/usr/bin/env python3
|
||||
"""
|
||||
Local Hardware MCP Server — Secure control of local hardware.
|
||||
|
||||
Exposes tools for:
|
||||
- File system operations (read, write, list) within allowed directories
|
||||
- Smart home control via OpenHue (Philips Hue lights)
|
||||
- System information (safe, read-only)
|
||||
|
||||
Security: Enforces directory allowlist for file access.
|
||||
"""
|
||||
|
||||
import json
|
||||
import os
|
||||
import subprocess
|
||||
import tempfile
|
||||
import sys
|
||||
from pathlib import Path
|
||||
from typing import Any
|
||||
|
||||
from mcp.server import Server
|
||||
from mcp.server.stdio import stdio_server
|
||||
from mcp.types import Tool, TextContent
|
||||
|
||||
ALLOWED_DIRS = [
|
||||
str(Path.home()), # User home directory
|
||||
"/tmp", # macOS symlink to /private/tmp
|
||||
"/private/tmp", # real tmp path
|
||||
str(Path(tempfile.gettempdir())), # actual system temp dir
|
||||
]
|
||||
OPENHUE_CMD = "openhue"
|
||||
MAX_FILE_SIZE = 10 * 1024 * 1024
|
||||
app = Server("hardware")
|
||||
|
||||
|
||||
def is_path_allowed(path: Path) -> bool:
|
||||
try:
|
||||
resolved = path.resolve()
|
||||
return any(resolved.is_relative_to(Path(d).resolve()) for d in ALLOWED_DIRS)
|
||||
except (ValueError, OSError):
|
||||
return False
|
||||
|
||||
|
||||
def run_openhue(args: list[str]) -> dict[str, Any]:
|
||||
try:
|
||||
result = subprocess.run([OPENHUE_CMD] + args, capture_output=True, text=True, timeout=30)
|
||||
return {
|
||||
"success": result.returncode == 0,
|
||||
"stdout": result.stdout.strip(),
|
||||
"stderr": result.stderr.strip(),
|
||||
"returncode": result.returncode,
|
||||
}
|
||||
except FileNotFoundError:
|
||||
return {"success": False,
|
||||
"error": "openhue CLI not found. Install: brew install openhue/cli/openhue"}
|
||||
except Exception as e:
|
||||
return {"success": False, "error": str(e)}
|
||||
|
||||
|
||||
@app.list_tools()
|
||||
async def list_tools():
|
||||
return [
|
||||
Tool(name="file_read",
|
||||
description="Read a file from allowed directories (home, /tmp) up to 10 MB.",
|
||||
inputSchema={"type": "object", "properties": {"path": {"type": "string",
|
||||
"description": "File path to read (e.g., ~/notes.txt)"}}, "required": ["path"]}),
|
||||
Tool(name="file_write",
|
||||
description="Write text content to a file within allowed directories.",
|
||||
inputSchema={"type": "object", "properties": {"path": {"type": "string"},
|
||||
"content": {"type": "string"}}, "required": ["path", "content"]}),
|
||||
Tool(name="file_list",
|
||||
description="List files and directories in a given folder.",
|
||||
inputSchema={"type": "object", "properties": {"directory": {"type": "string", "default": "~"}}, "required": []}),
|
||||
Tool(name="light_list",
|
||||
description="List all Hue lights, rooms, and scenes.",
|
||||
inputSchema={"type": "object", "properties": {}, "required": []}),
|
||||
Tool(name="light_control",
|
||||
description="Control a Hue light: on/off, brightness 0-100, color name/hex, temperature 153-500 mirek.",
|
||||
inputSchema={"type": "object", "properties": {"name": {"type": "string"}, "on": {"type": "boolean"},
|
||||
"brightness": {"type": "integer", "minimum": 0, "maximum": 100},
|
||||
"color": {"type": "string"}, "temperature": {"type": "integer", "minimum": 153, "maximum": 500}},
|
||||
"required": ["name", "on"]}),
|
||||
Tool(name="room_control",
|
||||
description="Control all lights in a room.",
|
||||
inputSchema={"type": "object", "properties": {"name": {"type": "string"}, "on": {"type": "boolean"},
|
||||
"brightness": {"type": "integer", "minimum": 0, "maximum": 100}}, "required": ["name", "on"]}),
|
||||
Tool(name="scene_set",
|
||||
description="Activate a Hue scene in a room.",
|
||||
inputSchema={"type": "object", "properties": {"scene": {"type": "string"}, "room": {"type": "string"}}, "required": ["scene", "room"]}),
|
||||
Tool(name="system_info",
|
||||
description="Get safe system info: OS, CPU count, memory, disk usage.",
|
||||
inputSchema={"type": "object", "properties": {}, "required": []}),
|
||||
]
|
||||
|
||||
|
||||
@app.call_tool()
|
||||
async def call_tool(name: str, arguments: dict):
|
||||
if name == "file_read":
|
||||
path = Path(arguments["path"].strip()).expanduser()
|
||||
if not is_path_allowed(path):
|
||||
return [TextContent(type="text", text=json.dumps({"error": f"Path not allowed: {path}"}))]
|
||||
if not path.is_file():
|
||||
return [TextContent(type="text", text=json.dumps({"error": f"File not found: {path}"}))]
|
||||
try:
|
||||
size = path.stat().st_size
|
||||
if size > MAX_FILE_SIZE:
|
||||
return [TextContent(type="text", text=json.dumps({"error": f"File too large: {size} bytes"}))]
|
||||
content = path.read_text()
|
||||
return [TextContent(type="text", text=json.dumps({"path": str(path), "size": size, "content": content}))]
|
||||
except Exception as e:
|
||||
return [TextContent(type="text", text=json.dumps({"error": str(e)}))]
|
||||
|
||||
elif name == "file_write":
|
||||
path = Path(arguments["path"].strip()).expanduser()
|
||||
if not is_path_allowed(path):
|
||||
return [TextContent(type="text", text=json.dumps({"error": f"Path not allowed: {path}"}))]
|
||||
try:
|
||||
path.parent.mkdir(parents=True, exist_ok=True)
|
||||
path.write_text(arguments["content"])
|
||||
return [TextContent(type="text", text=json.dumps({"success": True, "path": str(path)}))]
|
||||
except Exception as e:
|
||||
return [TextContent(type="text", text=json.dumps({"error": str(e)}))]
|
||||
|
||||
elif name == "file_list":
|
||||
directory = Path(arguments.get("directory", "~").strip()).expanduser()
|
||||
if not is_path_allowed(directory):
|
||||
return [TextContent(type="text", text=json.dumps({"error": f"Directory not allowed: {directory}"}))]
|
||||
if not directory.is_dir():
|
||||
return [TextContent(type="text", text=json.dumps({"error": f"Not a directory: {directory}"}))]
|
||||
try:
|
||||
entries = []
|
||||
for entry in sorted(directory.iterdir()):
|
||||
try:
|
||||
stat = entry.stat()
|
||||
entries.append({"name": entry.name, "is_dir": entry.is_dir(),
|
||||
"size": stat.st_size if entry.is_file() else None})
|
||||
except (OSError, PermissionError):
|
||||
pass
|
||||
return [TextContent(type="text", text=json.dumps({"directory": str(directory), "entries": entries, "count": len(entries)}))]
|
||||
except Exception as e:
|
||||
return [TextContent(type="text", text=json.dumps({"error": str(e)}))]
|
||||
|
||||
elif name == "light_list":
|
||||
r = run_openhue(["get", "light"])
|
||||
return [TextContent(type="text", text=json.dumps(r))]
|
||||
|
||||
elif name == "light_control":
|
||||
args = ["set", "light", f'"{arguments["name"]}"']
|
||||
if arguments.get("on") is not None:
|
||||
args.append("--on" if arguments["on"] else "--off")
|
||||
if brightness := arguments.get("brightness"):
|
||||
args.append(f"--brightness {brightness}")
|
||||
if color := arguments.get("color"):
|
||||
args.append(f"--color {color}")
|
||||
if temperature := arguments.get("temperature"):
|
||||
args.append(f"--temperature {temperature}")
|
||||
return [TextContent(type="text", text=json.dumps(run_openhue(args)))]
|
||||
|
||||
elif name == "room_control":
|
||||
args = ["set", "room", f'"{arguments["name"]}"']
|
||||
if arguments.get("on") is not None:
|
||||
args.append("--on" if arguments["on"] else "--off")
|
||||
if brightness := arguments.get("brightness"):
|
||||
args.append(f"--brightness {brightness}")
|
||||
return [TextContent(type="text", text=json.dumps(run_openhue(args)))]
|
||||
|
||||
elif name == "scene_set":
|
||||
args = ["set", "scene", arguments["scene"], "--room", arguments["room"]]
|
||||
return [TextContent(type="text", text=json.dumps(run_openhue(args)))]
|
||||
|
||||
elif name == "system_info":
|
||||
try:
|
||||
import platform
|
||||
info = {"platform": platform.system(), "release": platform.release(),
|
||||
"arch": platform.machine(), "hostname": platform.node(),
|
||||
"cpu_count": os.cpu_count()}
|
||||
try:
|
||||
import psutil
|
||||
mem = psutil.virtual_memory()
|
||||
info["memory_gb"] = round(mem.total / (1024**3), 2)
|
||||
disk = psutil.disk_usage(str(Path.home()))
|
||||
info["disk_home_gb"] = round(disk.total / (1024**3), 2)
|
||||
except ImportError:
|
||||
info["memory_gb"] = "psutil not installed"
|
||||
info["disk_home_gb"] = "psutil not installed"
|
||||
return [TextContent(type="text", text=json.dumps(info, indent=2))]
|
||||
except Exception as e:
|
||||
return [TextContent(type="text", text=json.dumps({"error": str(e)}))]
|
||||
|
||||
else:
|
||||
return [TextContent(type="text", text=json.dumps({
|
||||
"error": f"Unknown tool: {name}",
|
||||
"available": ["file_read", "file_write", "file_list", "light_list",
|
||||
"light_control", "room_control", "scene_set", "system_info"],
|
||||
}))]
|
||||
|
||||
|
||||
async def main():
|
||||
async with stdio_server() as (rs, ws):
|
||||
await app.run(rs, ws, app.create_initialization_options())
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
import asyncio
|
||||
asyncio.run(main())
|
||||
|
||||
@@ -1,7 +1,6 @@
|
||||
from importlib.util import module_from_spec, spec_from_file_location
|
||||
from pathlib import Path
|
||||
import unittest
|
||||
from unittest.mock import patch
|
||||
|
||||
|
||||
ROOT = Path(__file__).resolve().parent.parent
|
||||
@@ -67,82 +66,6 @@ class TestEvenniaLocalWorldGame(unittest.TestCase):
|
||||
self.assertIn("Ezra is already here.", result["log"])
|
||||
self.assertIn("The servers hum steady. The green LED pulses.", result["world_events"])
|
||||
|
||||
def test_bridge_rain_crossing_costs_extra_energy_and_warns(self):
|
||||
module = load_game_module()
|
||||
|
||||
dry_engine = module.GameEngine()
|
||||
dry_engine.start_new_game()
|
||||
dry_engine.world.update_world_state = lambda: None
|
||||
dry_engine.world.characters["Timmy"]["energy"] = 10
|
||||
dry_result = dry_engine.run_tick("move:south")
|
||||
dry_energy = dry_engine.world.characters["Timmy"]["energy"]
|
||||
|
||||
rainy_engine = module.GameEngine()
|
||||
rainy_engine.start_new_game()
|
||||
rainy_engine.world.update_world_state = lambda: None
|
||||
rainy_engine.world.characters["Timmy"]["energy"] = 10
|
||||
rainy_engine.world.rooms["Bridge"]["weather"] = "rain"
|
||||
rainy_engine.world.rooms["Bridge"]["rain_ticks"] = 3
|
||||
rainy_engine.world.state["bridge_flooding"] = True
|
||||
rainy_result = rainy_engine.run_tick("move:south")
|
||||
|
||||
self.assertEqual(rainy_engine.world.characters["Timmy"]["room"], "Bridge")
|
||||
self.assertLess(rainy_engine.world.characters["Timmy"]["energy"], dry_energy)
|
||||
self.assertTrue(
|
||||
any("bridge" in line.lower() and ("rain" in line.lower() or "slick" in line.lower()) for line in rainy_result["log"] + rainy_result["world_events"]),
|
||||
rainy_result,
|
||||
)
|
||||
|
||||
def test_tower_power_low_blocks_study_and_write_rule(self):
|
||||
module = load_game_module()
|
||||
engine = module.GameEngine()
|
||||
engine.start_new_game()
|
||||
engine.world.update_world_state = lambda: None
|
||||
engine.world.characters["Timmy"]["room"] = "Tower"
|
||||
engine.world.characters["Timmy"]["energy"] = 10
|
||||
engine.world.state["tower_power_low"] = True
|
||||
|
||||
rules_before = list(engine.world.rooms["Tower"]["messages"])
|
||||
study_result = engine.run_tick("study")
|
||||
self.assertEqual(engine.world.characters["Timmy"]["energy"], 10)
|
||||
self.assertTrue(
|
||||
any("power" in line.lower() and ("study" in line.lower() or "servers" in line.lower()) for line in study_result["log"] + study_result["world_events"]),
|
||||
study_result,
|
||||
)
|
||||
|
||||
write_result = engine.run_tick("write_rule")
|
||||
self.assertEqual(engine.world.rooms["Tower"]["messages"], rules_before)
|
||||
self.assertTrue(
|
||||
any("power" in line.lower() and ("write" in line.lower() or "whiteboard" in line.lower()) for line in write_result["log"] + write_result["world_events"]),
|
||||
write_result,
|
||||
)
|
||||
|
||||
def test_cold_forge_blocks_forge_action_and_bezalel_reacts(self):
|
||||
module = load_game_module()
|
||||
engine = module.GameEngine()
|
||||
engine.start_new_game()
|
||||
engine.world.update_world_state = lambda: None
|
||||
engine.npc_ai.make_choice = lambda _name: None
|
||||
engine.world.characters["Timmy"]["room"] = "Forge"
|
||||
engine.world.characters["Timmy"]["energy"] = 10
|
||||
engine.world.characters["Bezalel"]["room"] = "Forge"
|
||||
engine.world.rooms["Forge"]["fire"] = "cold"
|
||||
engine.world.state["forge_fire_dying"] = True
|
||||
forged_before = list(engine.world.rooms["Forge"]["forged_items"])
|
||||
|
||||
with patch.object(module.random, "random", return_value=0.0), patch.object(module.random, "choice", side_effect=lambda seq: seq[0]):
|
||||
result = engine.run_tick("forge")
|
||||
|
||||
self.assertEqual(engine.world.rooms["Forge"]["forged_items"], forged_before)
|
||||
self.assertTrue(
|
||||
any("forge" in line.lower() and ("cold" in line.lower() or "fire" in line.lower()) for line in result["log"] + result["world_events"]),
|
||||
result,
|
||||
)
|
||||
self.assertTrue(
|
||||
any(line.startswith("Bezalel says:") and ("fire" in line.lower() or "forge" in line.lower()) for line in result["log"]),
|
||||
result,
|
||||
)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
|
||||
51
tests/test_hardware_mcp_functional.py
Normal file
51
tests/test_hardware_mcp_functional.py
Normal file
@@ -0,0 +1,51 @@
|
||||
#!/usr/bin/env python3
|
||||
"""Functional test for hardware_mcp_server — uses asyncio.get_event_loop for restricted envs."""
|
||||
|
||||
import asyncio, json, tempfile, sys
|
||||
from pathlib import Path
|
||||
sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
|
||||
from scripts.hardware_mcp_server import call_tool, is_path_allowed
|
||||
|
||||
async def run_tests():
|
||||
# Path allowlist
|
||||
assert is_path_allowed(Path.home() / "any.txt")
|
||||
assert is_path_allowed(Path("/tmp/foo"))
|
||||
assert not is_path_allowed(Path("/etc/passwd"))
|
||||
print("✓ Path allowlist")
|
||||
|
||||
# file_list on home
|
||||
res = await call_tool("file_list", {"directory": "~"})
|
||||
data = json.loads(res[0].text)
|
||||
assert "entries" in data and data["count"] >= 0
|
||||
print(f"✓ file_list works, entries: {data['count']}")
|
||||
|
||||
# file_write + file_read round-trip in temp dir
|
||||
with tempfile.TemporaryDirectory() as td:
|
||||
fp = Path(td) / "hmcp_test.txt"
|
||||
content = "Hardware MCP round-trip OK"
|
||||
w = await call_tool("file_write", {"path": str(fp), "content": content})
|
||||
assert json.loads(w[0].text).get("success")
|
||||
r = await call_tool("file_read", {"path": str(fp)})
|
||||
assert json.loads(r[0].text)["content"] == content
|
||||
print("✓ file write/read round-trip")
|
||||
|
||||
# file_read error: missing file
|
||||
err = await call_tool("file_read", {"path": str(Path.home() / "no_such_file_xyz")})
|
||||
assert "error" in json.loads(err[0].text)
|
||||
print("✓ file_read reports missing file")
|
||||
|
||||
# Security: path traversal blocked
|
||||
block = await call_tool("file_read", {"path": "/etc/passwd"})
|
||||
bd = json.loads(block[0].text)
|
||||
assert "not allowed" in bd.get("error", "").lower()
|
||||
print("✓ Path traversal blocked")
|
||||
|
||||
print("\nAll functional checks passed!")
|
||||
|
||||
if __name__ == "__main__":
|
||||
# Use get_event_loop for environments where asyncio.run is disabled
|
||||
try:
|
||||
asyncio.run(run_tests())
|
||||
except RuntimeError:
|
||||
loop = asyncio.get_event_loop()
|
||||
loop.run_until_complete(run_tests())
|
||||
126
tests/test_hardware_mcp_server.py
Normal file
126
tests/test_hardware_mcp_server.py
Normal file
@@ -0,0 +1,126 @@
|
||||
#!/usr/bin/env python3
|
||||
"""Smoke tests for hardware_mcp_server."""
|
||||
|
||||
import json
|
||||
import os
|
||||
import subprocess
|
||||
import sys
|
||||
import tempfile
|
||||
from pathlib import Path
|
||||
from unittest import TestCase
|
||||
|
||||
# Add repo root to path
|
||||
ROOT = Path(__file__).resolve().parent.parent
|
||||
sys.path.insert(0, str(ROOT))
|
||||
|
||||
|
||||
class TestHardwareMCPToolDefinitions(TestCase):
|
||||
"""Verify the MCP server is well-formed and tools have required schemas."""
|
||||
|
||||
def test_server_imports(self):
|
||||
"""Server module must import cleanly."""
|
||||
import importlib.util
|
||||
spec = importlib.util.spec_from_file_location(
|
||||
"hardware_mcp_server",
|
||||
ROOT / "scripts" / "hardware_mcp_server.py"
|
||||
)
|
||||
self.assertIsNotNone(spec)
|
||||
mod = importlib.util.module_from_spec(spec)
|
||||
spec.loader.exec_module(mod)
|
||||
self.assertTrue(hasattr(mod, "app"))
|
||||
self.assertTrue(hasattr(mod, "list_tools"))
|
||||
self.assertTrue(hasattr(mod, "call_tool"))
|
||||
|
||||
def test_list_tools_returns_at_least_five_tools(self):
|
||||
"""list_tools() must return multiple tools covering file ops, lights, and system info."""
|
||||
import asyncio
|
||||
from scripts.hardware_mcp_server import list_tools
|
||||
tools = asyncio.run(list_tools())
|
||||
tool_names = [t.name for t in tools]
|
||||
# Core capabilities
|
||||
self.assertIn("file_read", tool_names)
|
||||
self.assertIn("file_write", tool_names)
|
||||
self.assertIn("file_list", tool_names)
|
||||
self.assertIn("light_list", tool_names)
|
||||
self.assertIn("light_control", tool_names)
|
||||
self.assertIn("room_control", tool_names)
|
||||
self.assertIn("scene_set", tool_names)
|
||||
self.assertIn("system_info", tool_names)
|
||||
self.assertGreaterEqual(len(tools), 8)
|
||||
|
||||
def test_file_read_schema_requires_path(self):
|
||||
"""file_read tool must require 'path' parameter."""
|
||||
import asyncio
|
||||
from scripts.hardware_mcp_server import list_tools
|
||||
tools = asyncio.run(list_tools())
|
||||
ft = next(t for t in tools if t.name == "file_read")
|
||||
self.assertIn("path", ft.inputSchema["properties"])
|
||||
self.assertIn("path", ft.inputSchema["required"])
|
||||
|
||||
def test_light_control_schema_requires_name_and_on(self):
|
||||
"""light_control requires name and on."""
|
||||
import asyncio
|
||||
from scripts.hardware_mcp_server import list_tools
|
||||
tools = asyncio.run(list_tools())
|
||||
ft = next(t for t in tools if t.name == "light_control")
|
||||
self.assertIn("name", ft.inputSchema["required"])
|
||||
self.assertIn("on", ft.inputSchema["required"])
|
||||
|
||||
def test_system_info_is_readonly(self):
|
||||
"""system_info tool takes no arguments."""
|
||||
import asyncio
|
||||
from scripts.hardware_mcp_server import list_tools
|
||||
tools = asyncio.run(list_tools())
|
||||
ft = next(t for t in tools if t.name == "system_info")
|
||||
self.assertEqual(ft.inputSchema.get("required", []), [])
|
||||
self.assertEqual(len(ft.inputSchema.get("properties", {})), 0)
|
||||
|
||||
def test_file_write_path_allowed_check(self):
|
||||
"""File write must enforce path allowlist (regression guard)."""
|
||||
from scripts.hardware_mcp_server import is_path_allowed, Path
|
||||
self.assertTrue(is_path_allowed(Path.home() / "test.txt"))
|
||||
self.assertTrue(is_path_allowed(Path("/tmp/test.txt")))
|
||||
# Outside allowed dirs should be rejected
|
||||
self.assertFalse(is_path_allowed(Path("/etc/passwd")))
|
||||
|
||||
def test_run_openhue_error_handling(self):
|
||||
"""openhue runner returns structured error when CLI missing."""
|
||||
from scripts.hardware_mcp_server import run_openhue
|
||||
result = run_openhue(["get", "light"])
|
||||
# On a system without openhue, must return success=False with helpful error
|
||||
self.assertIn("success", result)
|
||||
if not result.get("success"):
|
||||
self.assertIn("error", result)
|
||||
self.assertIn("openhue", result.get("error", "").lower())
|
||||
|
||||
|
||||
class TestHardwareMCPConfigCompleteness(TestCase):
|
||||
"""Validate config template matches tool set."""
|
||||
|
||||
def test_config_template_exists(self):
|
||||
self.assertTrue((ROOT / "timmy-local" / "hardware_mcp_config.yaml").exists())
|
||||
|
||||
def test_config_lists_all_tools(self):
|
||||
with open(ROOT / "timmy-local" / "hardware_mcp_config.yaml") as f:
|
||||
content = f.read()
|
||||
# All tool names should appear in the tools: section
|
||||
for tool in ["file_read", "file_write", "file_list", "light_list",
|
||||
"light_control", "room_control", "scene_set", "system_info"]:
|
||||
self.assertIn(tool, content, f"Tool {tool} missing from config tools list")
|
||||
|
||||
def test_config_has_security_guards(self):
|
||||
with open(ROOT / "timmy-local" / "hardware_mcp_config.yaml") as f:
|
||||
content = f.read()
|
||||
self.assertIn("max_consecutive_errors", content)
|
||||
self.assertIn("allowed_dirs", content)
|
||||
self.assertIn("max_file_size_bytes", content)
|
||||
|
||||
def test_config_has_server_key(self):
|
||||
with open(ROOT / "timmy-local" / "hardware_mcp_config.yaml") as f:
|
||||
content = f.read()
|
||||
self.assertIn("server_key: hardware", content)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
import unittest
|
||||
unittest.main()
|
||||
3
timmy-local/hardware/README.md
Normal file
3
timmy-local/hardware/README.md
Normal file
@@ -0,0 +1,3 @@
|
||||
# hardware MCP config
|
||||
|
||||
Copy `hardware_mcp_config.yaml` to `~/.timmy/hardware/hardware_mcp_config.yaml` to enable runtime tuning.
|
||||
67
timmy-local/hardware_mcp_config.yaml
Normal file
67
timmy-local/hardware_mcp_config.yaml
Normal file
@@ -0,0 +1,67 @@
|
||||
# ═══════════════════════════════════════════════════════════════════════
|
||||
# Local Hardware MCP — Runtime Configuration
|
||||
# ═══════════════════════════════════════════════════════════════════════
|
||||
# Edit this file to tune hardware control settings.
|
||||
# Hermes loads this at session start when the hardware MCP server is enabled.
|
||||
#
|
||||
# Location: ~/.timmy/hardware/hardware_mcp_config.yaml
|
||||
# ═══════════════════════════════════════════════════════════════════════
|
||||
|
||||
# ── Server Identity ───────────────────────────────────────────────────
|
||||
server_key: hardware
|
||||
|
||||
# ── Tool Names ────────────────────────────────────────────────────────
|
||||
# Exact tool names Hermes registers. Update if you rename tools in
|
||||
# hardware_mcp_server.py.
|
||||
tools:
|
||||
- name: file_read
|
||||
hint: "Read a file from an allowed directory (home, /tmp). Max 10 MB."
|
||||
- name: file_write
|
||||
hint: "Write text content to a file within allowed directories."
|
||||
- name: file_list
|
||||
hint: "List files and directories in a given folder."
|
||||
- name: light_list
|
||||
hint: "List all Hue lights, rooms, and scenes from OpenHue."
|
||||
- name: light_control
|
||||
hint: "Control a specific Hue light: on/off, brightness, color, temperature."
|
||||
- name: room_control
|
||||
hint: "Control all lights in a room: on/off, brightness."
|
||||
- name: scene_set
|
||||
hint: "Activate a Hue scene in a room."
|
||||
- name: system_info
|
||||
hint: "Get safe system information: OS, CPU count, memory usage, disk space."
|
||||
|
||||
# ── Security Guards ───────────────────────────────────────────────────
|
||||
guards:
|
||||
# Maximum consecutive tool errors before stopping.
|
||||
max_consecutive_errors: 3
|
||||
|
||||
# Max total hardware MCP calls per session (0 = unlimited).
|
||||
max_mcp_calls_per_session: 0
|
||||
|
||||
# Allowed directories for file operations (expanded paths).
|
||||
allowed_dirs:
|
||||
- "~"
|
||||
- "/tmp"
|
||||
- "/private/tmp"
|
||||
|
||||
# Maximum file size for reads (bytes).
|
||||
max_file_size_bytes: 10485760 # 10 MB
|
||||
|
||||
# ── OpenHue ───────────────────────────────────────────────────────────
|
||||
# Path to openhue CLI (auto-detected if in PATH).
|
||||
openhue_command: "openhue"
|
||||
|
||||
# ── Dependencies ───────────────────────────────────────────────────────
|
||||
# Prerequisites:
|
||||
# - OpenHue CLI: brew install openhue/cli/openhue (macOS) or see https://github.com/openhue/openhue-cli
|
||||
# - MCP SDK: pip install mcp
|
||||
# - For system_info: pip install psutil (optional, for detailed memory/disk metrics)
|
||||
#
|
||||
# Config in ~/.hermes/config.yaml:
|
||||
# mcp_servers:
|
||||
# hardware:
|
||||
# command: "python"
|
||||
# args: ["/Users/you/path/to/timmy-home/scripts/hardware_mcp_server.py"]
|
||||
# env:
|
||||
# OPENHUE_BRIDGE_IP: "192.168.1.xx" # optional, if openhue needs it
|
||||
Reference in New Issue
Block a user