feat: new agent to move around

README.md

@@ -8,7 +8,7 @@ Python-based Telnet helper for connecting to MUD servers, handling login flows,
 - Loads credentials and connection settings from a local `.env` file.
 - Interactive console session that mirrors server output and lets you type commands directly.
 - Optional always-on agent mode plus an on-demand `#execute <agent>` escape hatch for ad-hoc automations.
-- Built-in agents (`SimpleAgent`, `ExploreAgent`, `CommunicationAgent`, `IntelligentCommunicationAgent`) with a pluggable interface for custom behaviours.
+- Built-in agents (`SimpleAgent`, `ExploreAgent`, `CommunicationAgent`, `MovementAgent`, `IntelligentCommunicationAgent`) with a pluggable interface for custom behaviours.
 
 ## Requirements
 
@@ -54,7 +54,7 @@ All variables can be placed in the `.env` file (one `KEY=value` per line) or pro
 | `MISTLE_LOGIN_PROMPT` | ❌ | Prompt string that signals the client to send credentials (e.g., `"Name:"`). When omitted, the client just waits for the initial banner. |
 | `MISTLE_EXIT_COMMAND` | ❌ | Command issued during graceful shutdown (after pressing `Ctrl-C`). Useful for `quit`/`save` macros. |
 | `MISTLE_AGENT_MODE` | ❌ | Enable full-time agent thread when set to truthy values (`1`, `true`, `yes`, `on`). Defaults to interactive-only mode. |
-| `MISTLE_AGENT` | ❌ | Select which agent class to instantiate when agent mode is active. Accepted values: `simple` (default), `explore`, `communication`, `intelligent`/`intelligentcommunication` (LLM-backed), or custom spec `module:ClassName`. |
+| `MISTLE_AGENT` | ❌ | Select which agent class to instantiate when agent mode is active. Accepted values: `simple` (default), `explore`, `communication`, `movement`, `intelligent`/`intelligentcommunication` (LLM-backed), or custom spec `module:ClassName`. |
 | `MISTLE_LLM_MODEL` | ❌ | Override the `litellm` model used by the intelligent agent (defaults to `mistral/mistral-small-2407`). |
 | `MISTRAL_API_KEY` | ❌ | API key used by `IntelligentCommunicationAgent` (via `litellm`) when calling the `mistral/mistral-small-2407` model. |
 
@@ -67,12 +67,13 @@ All variables can be placed in the `.env` file (one `KEY=value` per line) or pro
 - `observe(output)` receives the latest server text; `decide()` returns the next command string or `None` to stay idle.
 - Commands issued by the agent are throttled to one per second so manual commands can still interleave smoothly.
 - `ExploreAgent` showcases a richer workflow: it sends `schau`, identifies German nouns, inspects each with `untersuche`, and prints `[Agent]` progress updates like `Explored 3/7 — untersuche Tisch`.
+- `MovementAgent` parses room descriptions/exits and issues direction commands (prefers `n`, `e`, `s`, `w`, diagonals, then vertical moves) while tracking which exits were already tried. Use `#execute move` for ad-hoc pathing or set `MISTLE_AGENT=movement` for continuous roaming.
 - `CommunicationAgent` auto-replies to every direct tell with a canned greeting, while `IntelligentCommunicationAgent` routes each tell through `litellm` (default model `mistral/mistral-small-2407`) to craft a contextual answer.
 
 ## On-Demand Agents
 
 - When `MISTLE_AGENT_MODE` is **off**, you can trigger an ephemeral agent at any time with `#execute <agent_spec>`.
-- The syntax accepts the same values as `MISTLE_AGENT` and reuses the `build_agent` helper, so `#execute simple`, `#execute explore`, `#execute intelligent`, or `#execute mypackage.mymodule:CustomAgent` are all valid.
+- The syntax accepts the same values as `MISTLE_AGENT` and reuses the `build_agent` helper, so `#execute simple`, `#execute explore`, `#execute move`, `#execute intelligent`, or `#execute mypackage.mymodule:CustomAgent` are all valid.
 - On-demand runs share the current session, respect the one-command-per-second limit, and stop automatically after a few seconds of inactivity.
 
 ## Danger Zone

agent.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import re
 from abc import ABC, abstractmethod
+
 from collections import deque
 from dataclasses import dataclass, field
 from typing import Deque, Optional, Pattern, Set, Tuple

app.py

@@ -81,7 +81,27 @@ def run_agent_loop(
     """Invoke *agent* whenever new output arrives and send its response."""
     idle_started: Optional[float] = None
 
+    def maybe_send() -> None:
+        nonlocal idle_started
+        try:
+            command = agent.decide()
+        except Exception as exc:  # pragma: no cover - defensive logging
+            print(f"Agent failed: {exc}", file=sys.stderr)
+            return
+        if not command:
+            return
+        sent = state.agent_send(
+            client,
+            command,
+            min_interval=min_send_interval,
+            stop_event=stop_event,
+        )
+        if not sent:
+            return
+        idle_started = None
+
     while not stop_event.is_set():
+        maybe_send()
         triggered = state.wait_for_output(timeout=idle_delay)
         if stop_event.is_set():
             break
@@ -101,20 +121,10 @@ def run_agent_loop(
             continue
         try:
             agent.observe(last_output)
-            command = agent.decide()
         except Exception as exc:  # pragma: no cover - defensive logging
-            print(f"Agent failed: {exc}", file=sys.stderr)
+            print(f"Agent failed during observe: {exc}", file=sys.stderr)
             continue
-        if not command:
-            continue
-        sent = state.agent_send(
-            client,
-            command,
-            min_interval=min_send_interval,
-            stop_event=stop_event,
-        )
-        if not sent:
-            break
+        maybe_send()
 
 
 def load_env_file(path: str = ".env") -> None:
@@ -155,15 +165,17 @@ def build_agent(agent_spec: str) -> Agent:
     builtin_agents = {
         "explore": ("agent", "ExploreAgent", {}),
         "communication": ("agent", "CommunicationAgent", {}),
+        "movement": ("movement_agent", "MovementAgent", {}),
+        "move": ("movement_agent", "MovementAgent", {}),
         "intelligent": (
             "intelligent_agent",
             "IntelligentCommunicationAgent",
-            {"model": os.environ.get("MISTLE_LLM_MODEL", "mistral/mistral-tiny")},
+            {"model": os.environ.get("MISTLE_LLM_MODEL", "mistral/mistral-small-2407")},
         ),
         "intelligentcommunication": (
             "intelligent_agent",
             "IntelligentCommunicationAgent",
-            {"model": os.environ.get("MISTLE_LLM_MODEL", "mistral/mistral-tiny")},
+            {"model": os.environ.get("MISTLE_LLM_MODEL", "mistral/mistral-small-2407")},
         ),
     }
 

movement_agent.py

@@ -0,0 +1,199 @@
+from __future__ import annotations
+
+import re
+import random
+from dataclasses import dataclass, field
+from typing import Dict, Optional, Pattern, Sequence, Set, Tuple
+
+from agent import Agent
+
+
+@dataclass
+class MovementAgent(Agent):
+    """Agent that chooses movement commands based on room descriptions."""
+
+    look_command: str = "schau"
+    command_format: str = "{direction}"
+    preferred_order: Tuple[str, ...] = (
+        "n",
+        "ne",
+        "e",
+        "se",
+        "s",
+        "sw",
+        "w",
+        "nw",
+        "u",
+        "d",
+    )
+    last_output: str = field(default="", init=False)
+    current_room_key: Optional[str] = field(default=None, init=False)
+    visited_directions: Dict[str, Set[str]] = field(default_factory=dict, init=False)
+    executed: bool = field(default=False, init=False)
+    needs_look: bool = field(default=True, init=False)
+    selected_direction: Optional[str] = field(default=None, init=False)
+    random_choice: bool = True
+
+    _direction_aliases: Dict[str, str] = field(
+        default_factory=lambda: {
+            "n": "n",
+            "north": "n",
+            "norden": "n",
+            "nord": "n",
+            "no": "ne",
+            "ne": "ne",
+            "nordost": "ne",
+            "nordosten": "ne",
+            "e": "e",
+            "east": "e",
+            "osten": "e",
+            "ost": "e",
+            "so": "se",
+            "se": "se",
+            "südost": "se",
+            "südosten": "se",
+            "s": "s",
+            "south": "s",
+            "süden": "s",
+            "süd": "s",
+            "sw": "sw",
+            "südwest": "sw",
+            "südwesten": "sw",
+            "w": "w",
+            "west": "w",
+            "westen": "w",
+            "nw": "nw",
+            "nordwest": "nw",
+            "nordwesten": "nw",
+            "u": "u",
+            "oben": "u",
+            "up": "u",
+            "rauf": "u",
+            "d": "d",
+            "down": "d",
+            "hinunter": "d",
+            "unten": "d",
+        },
+        init=False,
+    )
+
+    _exit_line_pattern: Pattern[str] = field(
+        default_factory=lambda: re.compile(
+            r"(?:ausg(?:ä|a)nge?|exits?)[:\s]+(.+)", re.IGNORECASE
+        ),
+        init=False,
+    )
+
+    def observe(self, output: str) -> None:
+        if not output or self.executed:
+            return
+        self.last_output = output
+        if self.needs_look:
+            return
+        room_key = self._room_key(output)
+        if self.selected_direction is None:
+            direction = self._select_direction(output, room_key)
+            if direction:
+                self.current_room_key = room_key
+                self.selected_direction = direction
+
+    def decide(self) -> Optional[str]:
+        if self.executed:
+            return None
+        if self.needs_look:
+            self.needs_look = False
+            print("[Agent] Requesting room description via look command")
+            return self.look_command
+        if self.selected_direction is None:
+            return None
+        direction = self.selected_direction
+        if self.current_room_key is not None:
+            self.visited_directions.setdefault(self.current_room_key, set()).add(
+                direction
+            )
+        command = self.command_format.format(direction=direction)
+        print(f"[Agent] Moving via {direction}")
+        self.executed = True
+        self.selected_direction = None
+        return command
+
+    def _room_key(self, text: str) -> str:
+        return re.sub(r"\s+", " ", text.strip())
+
+    def _select_direction(self, text: str, room_key: str) -> Optional[str]:
+        exits = self._parse_exit_lines(text)
+        if not exits:
+            exits = self._scan_for_directions(text)
+        if not exits:
+            return None
+
+        ordered = self._prioritized_exits(exits, room_key)
+        if not ordered:
+            return None
+
+        visited = self.visited_directions.setdefault(room_key, set())
+        candidates = [direction for direction in ordered if direction not in visited]
+        pool = candidates or ordered
+        return self._choose_direction(pool)
+
+    def _prioritized_exits(
+        self, exits: Sequence[Tuple[str, Optional[str]]], room_key: str
+    ) -> list[str]:
+        ordered: list[str] = []
+        seen: Set[str] = set()
+
+        for pref in self.preferred_order:
+            for raw, canonical in exits:
+                if canonical == pref and raw not in seen:
+                    ordered.append(raw)
+                    seen.add(raw)
+
+        for raw, _ in exits:
+            if raw not in seen:
+                ordered.append(raw)
+                seen.add(raw)
+
+        return ordered
+
+    def _choose_direction(self, pool: Sequence[str]) -> str:
+        if not pool:
+            raise ValueError("No exits available to choose from")
+        if self.random_choice and len(pool) > 1:
+            return random.choice(list(pool))
+        return pool[0]
+
+    def _parse_exit_lines(self, text: str) -> list[Tuple[str, Optional[str]]]:
+        exits: list[Tuple[str, Optional[str]]] = []
+        for line in text.splitlines():
+            match = self._exit_line_pattern.search(line)
+            if not match:
+                continue
+            candidates = re.split(r"[,;/]| und | oder |\\s", match.group(1))
+            for candidate in candidates:
+                normalized = self._normalize_raw(candidate)
+                if not normalized:
+                    continue
+                exits.append(normalized)
+        return exits
+
+    def _scan_for_directions(self, text: str) -> list[Tuple[str, Optional[str]]]:
+        exits: list[Tuple[str, Optional[str]]] = []
+        lowered = text.lower()
+        for word, direction in self._direction_aliases.items():
+            if re.search(rf"\b{re.escape(word)}\b", lowered):
+                normalized = self._normalize_raw(word)
+                if normalized:
+                    exits.append((normalized[0], direction))
+        return exits
+
+    def _map_direction(self, raw: str) -> Optional[str]:
+        cleaned = re.sub(r"[^a-zäöüß]", "", raw.lower())
+        if not cleaned:
+            return None
+        return self._direction_aliases.get(cleaned)
+
+    def _normalize_raw(self, raw: str) -> Optional[Tuple[str, Optional[str]]]:
+        cleaned = re.sub(r"[\s\.,;:!?-]+$", "", raw.strip())
+        if not cleaned:
+            return None
+        return cleaned, self._map_direction(cleaned)