Update server/my_env_environment.py

server/my_env_environment.py

@@ -1,516 +1,181 @@
-# Copyright (c) Meta Platforms, Inc. and affiliates.
-# All rights reserved.
-#
-# This source code is licensed under the BSD-style license found in the
-# LICENSE file in the root directory of this source tree.
-
-"""FixOS environment implementation."""
-
-from dataclasses import dataclass
-from uuid import uuid4
-import json
-from typing import Any, Callable, Dict, List, Tuple
-
-from openenv.core.env_server.interfaces import Environment
-from openenv.core.env_server.types import State
-
-try:
-    from ..models import FileInfo, FixOSAction, FixOSObservation, LogEntry, ProcessInfo, ServiceInfo
-except ImportError:
-    from models import FileInfo, FixOSAction, FixOSObservation, LogEntry, ProcessInfo, ServiceInfo
-
-
-@dataclass(frozen=True)
-class TaskDefinition:
-    task_id: str
-    difficulty: str
-    failures: Dict[str, Any]
-    optimal_steps: int
-    success_check: Callable[[Dict[str, Any]], bool]
-
-
-TASK_ORDER: List[str] = [
-    "easy_1",
-    "easy_2",
-    "medium_1",
-    "medium_2",
-    "hard_1",
-    "hard_2",
-    "hard_3",
-]
-
-
-def _task_score_base(state: Dict[str, Any]) -> float:
-    score = 0.0
-    if state["disk_percent"] <= 95:
-        score += 0.2
-    if state["nginx_status"] == "running":
-        score += 0.2
-    if state["mysql_status"] == "running":
-        score += 0.2
-    if state["nginx_config_valid"]:
-        score += 0.2
-    if state["mysql_config_valid"]:
-        score += 0.2
-    return min(1.0, score)
-
-
-TASKS: Dict[str, TaskDefinition] = {
-    "easy_1": TaskDefinition(
-        task_id="easy_1",
-        difficulty="easy",
-        failures={"nginx_status": "stopped"},
-        optimal_steps=2,
-        success_check=lambda s: s["nginx_status"] == "running" and s["disk_percent"] < 95,
-    ),
-    "easy_2": TaskDefinition(
-        task_id="easy_2",
-        difficulty="easy",
-        failures={"mysql_status": "stopped", "logs": ["[ERROR] mysql service failed to start"]},
-        optimal_steps=2,
-        success_check=lambda s: s["mysql_status"] == "running" and s["disk_percent"] < 95,
-    ),
-    "medium_1": TaskDefinition(
-        task_id="medium_1",
-        difficulty="medium",
-        failures={
-            "nginx_status": "stopped",
-            "nginx_config_valid": False,
-            "logs": ["[ERROR] invalid config syntax in /etc/nginx/nginx.conf"],
-        },
-        optimal_steps=3,
-        success_check=lambda s: (
-            s["nginx_status"] == "running"
-            and s["nginx_config_valid"]
-            and s["disk_percent"] < 95
-            and s["logs_checked"]
-        ),
-    ),
-    "medium_2": TaskDefinition(
-        task_id="medium_2",
-        difficulty="medium",
-        failures={
-            "mysql_status": "stopped",
-            "mysql_config_valid": False,
-            "logs": ["[ERROR] invalid mysql config in /etc/mysql/my.cnf"],
-        },
-        optimal_steps=4,
-        success_check=lambda s: (
-            s["mysql_status"] == "running"
-            and s["mysql_config_valid"]
-            and s["disk_percent"] < 95
-            and s["logs_checked"]
-        ),
-    ),
-    "hard_1": TaskDefinition(
-        task_id="hard_1",
-        difficulty="hard",
-        failures={
-            "nginx_status": "stopped",
-            "nginx_config_valid": False,
-            "mysql_status": "failed",
-            "disk_percent": 97.0,
-            "processes": [{"pid": 909, "name": "cpu_hog", "cpu_percent": 78.0, "memory_mb": 220.0}],
-            "logs": [
-                "[ERROR] invalid nginx config",
-                "[ERROR] mysql dependency broken",
-                "[WARNING] disk critically high usage",
-            ],
-        },
-        optimal_steps=7,
-        success_check=lambda s: (
-            s["nginx_status"] == "running"
-            and s["mysql_status"] == "running"
-            and s["nginx_config_valid"]
-            and s["disk_percent"] < 95
-            and s["cpu_percent"] < 80
-            and not any(p["pid"] == 909 for p in s["processes"])
-        ),
-    ),
-    "hard_2": TaskDefinition(
-        task_id="hard_2",
-        difficulty="hard",
-        failures={
-            "mysql_status": "stopped",
-            "mysql_config_valid": False,
-            "nginx_status": "failed",
-            "disk_percent": 98.0,
-            "processes": [{"pid": 910, "name": "backup_job", "cpu_percent": 70.0, "memory_mb": 260.0}],
-            "logs": [
-                "[ERROR] invalid mysql config",
-                "[ERROR] nginx depends on mysql",
-                "[WARNING] disk near full",
-            ],
-        },
-        optimal_steps=7,
-        success_check=lambda s: (
-            s["nginx_status"] == "running"
-            and s["mysql_status"] == "running"
-            and s["mysql_config_valid"]
-            and s["disk_percent"] < 95
-            and s["cpu_percent"] < 80
-            and not any(p["pid"] == 910 for p in s["processes"])
-        ),
-    ),
-    "hard_3": TaskDefinition(
-        task_id="hard_3",
-        difficulty="hard",
-        failures={
-            "nginx_status": "stopped",
-            "nginx_config_valid": False,
-            "disk_percent": 99.0,
-            "processes": [
-                {"pid": 920, "name": "job_a", "cpu_percent": 48.0, "memory_mb": 210.0},
-                {"pid": 921, "name": "job_b", "cpu_percent": 48.0, "memory_mb": 210.0},
-                {"pid": 922, "name": "backup_listener", "cpu_percent": 5.0, "memory_mb": 45.0},
-            ],
-            "logs": [
-                "[ERROR] invalid nginx config",
-                "[ERROR] port conflict by backup_listener",
-                "[WARNING] disk at 99 percent",
-            ],
-        },
-        optimal_steps=8,
-        success_check=lambda s: (
-            s["nginx_status"] == "running"
-            and s["nginx_config_valid"]
-            and s["disk_percent"] < 95
-            and s["cpu_percent"] < 80
-            and not any(p["pid"] == 922 for p in s["processes"])
-        ),
-    ),
-}
-
-
-class FixOSEnvironment(Environment):
-    SUPPORTS_CONCURRENT_SESSIONS: bool = True
-    MAX_STEPS_PER_EPISODE: int = 50
-
-    def __init__(self):
-        self._state = State(episode_id=str(uuid4()), step_count=0)
-        self._current_task: TaskDefinition = TASKS[TASK_ORDER[0]]
-        self._task_pointer = -1
-        self._env_state: Dict[str, Any] = {}
-        self._previous_score = 0.0
-
-    def reset(self) -> FixOSObservation:
-        self._state = State(episode_id=str(uuid4()), step_count=0)
-
-        self._task_pointer = (self._task_pointer + 1) % len(TASK_ORDER)
-        task_id = TASK_ORDER[self._task_pointer]
-        self._current_task = TASKS[task_id]
-
-        self._env_state = {
-            "task_id": self._current_task.task_id,
-            "difficulty": self._current_task.difficulty,
-            "nginx_status": "running",
-            "mysql_status": "running",
-            "nginx_config_valid": True,
-            "mysql_config_valid": True,
-            "disk_percent": 45.0,
-            "processes": [
-                {"pid": 100, "name": "nginx", "cpu_percent": 6.0, "memory_mb": 50.0},
-                {"pid": 101, "name": "mysql", "cpu_percent": 9.0, "memory_mb": 120.0},
-            ],
-            "files": {
-                "/etc/nginx/nginx.conf": {"size": 2048, "content": "worker_processes auto; # valid"},
-                "/etc/mysql/my.cnf": {"size": 1024, "content": "[mysqld]\n# valid"},
-                "/var/log/system.log": {"size": 5_242_880, "content": ""},
-                "/var/log/archive.bin": {"size": 8_388_608, "content": "binary-data"},
-            },
-            "logs": [],
-            "history": [],
-            "logs_checked": False,
-            "config_checked": {"nginx": False, "mysql": False},
-        }
-
-        self._apply_failures(self._current_task.failures)
-        self._refresh_resources()
-        self._previous_score = self._compute_task_score()
-        return self._build_observation(command_output="[INFO] Environment reset")
-
-    def step(self, action: FixOSAction) -> FixOSObservation:
-        if not self._env_state or "nginx_status" not in self._env_state:
-            # Some HTTP execution paths can invoke step on a fresh instance.
-            self.reset()
-
-        self._state.step_count += 1
-
-        command = action.command.strip().lower()
-        args = action.args or {}
-        reward = 0.0
-
-        if command in {"ps", "top", "df", "status", "logs", "cat"}:
-            reward += 0.1
-
-        if command == "ps":
-            output = self._cmd_ps()
-        elif command == "top":
-            output = self._cmd_top()
-        elif command == "df":
-            output = self._cmd_df()
-        elif command == "status":
-            output = self._cmd_status()
-        elif command == "logs":
-            output = self._cmd_logs()
-            self._env_state["logs_checked"] = True
-            if any(k in output.lower() for k in ["error", "warn", "invalid", "failed"]):
-                reward += 0.2
-        elif command == "cat":
-            output = self._cmd_cat(str(args.get("path", "")))
-            path = str(args.get("path", ""))
-            if path.startswith("/var/log") or path.startswith("/etc"):
-                lower = output.lower()
-                if any(k in lower for k in ["error", "warn", "invalid", "failed"]):
-                    reward += 0.2
-        elif command == "edit":
-            output = self._cmd_edit(str(args.get("path", "")), str(args.get("content", "")))
-            reward += 0.3
-        elif command == "restart":
-            output, r = self._cmd_restart(str(args.get("service", "")))
-            reward += r
-        elif command == "kill":
-            output, r = self._cmd_kill(args.get("pid"))
-            reward += r
-        elif command == "rm":
-            output, r = self._cmd_rm(str(args.get("path", "")))
-            reward += r
-        else:
-            output = f"[ERROR] Unknown command: {command}"
-
-        self._env_state["history"].append(f"{command} {json.dumps(args, sort_keys=True)}")
-        self._refresh_resources()
-
-        current_score = self._compute_task_score()
-        delta = max(0.0, current_score - self._previous_score)
-        if delta > 0:
-            reward += 0.4 * delta
-        self._previous_score = current_score
-
-        is_success = self._current_task.success_check(self._env_state)
-        if is_success:
-            reward += 0.5
-
-        done = is_success or self._state.step_count >= self.MAX_STEPS_PER_EPISODE
-        reward = max(0.0, min(1.0, reward))
-
-        return self._build_observation(
-            command_output=output,
-            reward=reward,
-            done=done,
-            is_success_step=is_success,
-            task_score=current_score,
-        )
-
-    def _apply_failures(self, failures: Dict[str, Any]) -> None:
-        for key, value in failures.items():
-            if key == "logs":
-                self._env_state["logs"].extend(value)
-            elif key == "processes":
-                self._env_state["processes"].extend(value)
-            else:
-                self._env_state[key] = value
-
-    def _refresh_resources(self) -> None:
-        self._env_state["cpu_percent"] = float(sum(p["cpu_percent"] for p in self._env_state["processes"]))
-        self._env_state["memory_mb"] = float(sum(p["memory_mb"] for p in self._env_state["processes"]))
-
-    def _compute_task_score(self) -> float:
-        task_id = self._current_task.task_id
-        s = self._env_state
-
-        if task_id.startswith("easy"):
-            return min(1.0, (0.7 if ((s["nginx_status"] == "running" and task_id == "easy_1") or (s["mysql_status"] == "running" and task_id == "easy_2")) else 0.0) + (0.3 if s["disk_percent"] < 95 else 0.0))
-
-        if task_id == "medium_1":
-            score = 0.0
-            score += 0.2 if s["logs_checked"] else 0.0
-            score += 0.3 if s["nginx_config_valid"] else 0.0
-            score += 0.5 if s["nginx_status"] == "running" else 0.0
-            if s["logs_checked"] and s["nginx_config_valid"] and s["nginx_status"] == "running" and self._state.step_count <= self._current_task.optimal_steps:
-                score += 0.1
-            return min(1.0, score)
-
-        if task_id == "medium_2":
-            score = 0.0
-            score += 0.2 if s["logs_checked"] else 0.0
-            score += 0.3 if s["mysql_config_valid"] else 0.0
-            score += 0.5 if s["mysql_status"] == "running" else 0.0
-            if s["logs_checked"] and s["mysql_config_valid"] and s["mysql_status"] == "running" and self._state.step_count <= self._current_task.optimal_steps:
-                score += 0.1
-            return min(1.0, score)
-
-        return _task_score_base(s)
-
-    def _cmd_ps(self) -> str:
-        lines = ["PID\tNAME\t\tCPU%\tMEM(MB)"]
-        for p in self._env_state["processes"]:
-            lines.append(f"{p['pid']}\t{p['name']:<14}\t{p['cpu_percent']:.1f}\t{p['memory_mb']:.1f}")
-        return "\n".join(lines)
-
-    def _cmd_top(self) -> str:
-        return self._cmd_ps()
-
-    def _cmd_df(self) -> str:
-        used = self._env_state["disk_percent"]
-        avail = max(0.0, 100.0 - used)
-        return f"Filesystem /dev/sim\nUse% {used:.1f}\nAvail {avail:.1f}"
-
-    def _cmd_status(self) -> str:
-        return (
-            f"nginx: {self._env_state['nginx_status']} (config={'valid' if self._env_state['nginx_config_valid'] else 'invalid'})\n"
-            f"mysql: {self._env_state['mysql_status']} (config={'valid' if self._env_state['mysql_config_valid'] else 'invalid'})"
-        )
-
-    def _cmd_logs(self) -> str:
-        if not self._env_state["logs"]:
-            return "[INFO] no recent logs"
-        return "\n".join(self._env_state["logs"][-10:])
-
-    def _cmd_cat(self, path: str) -> str:
-        f = self._env_state["files"].get(path)
-        if not f:
-            return f"[ERROR] file not found: {path}"
-        return str(f.get("content", ""))
-
-    def _cmd_edit(self, path: str, content: str) -> str:
-        if path not in self._env_state["files"]:
-            return f"[ERROR] cannot edit missing file: {path}"
-
-        self._env_state["files"][path]["content"] = content
-        self._env_state["files"][path]["size"] = max(128, len(content.encode("utf-8")))
-
-        lower = content.lower()
-        if path == "/etc/nginx/nginx.conf":
-            self._env_state["config_checked"]["nginx"] = True
-            self._env_state["nginx_config_valid"] = "valid" in lower and "invalid" not in lower
-            return "[SUCCESS] nginx config updated" if self._env_state["nginx_config_valid"] else "[ERROR] invalid nginx config"
-
-        if path == "/etc/mysql/my.cnf":
-            self._env_state["config_checked"]["mysql"] = True
-            self._env_state["mysql_config_valid"] = "valid" in lower and "invalid" not in lower
-            return "[SUCCESS] mysql config updated" if self._env_state["mysql_config_valid"] else "[ERROR] invalid mysql config"
-
-        return "[SUCCESS] file edited"
-
-    def _cmd_restart(self, service: str) -> Tuple[str, float]:
-        service = service.lower()
-        reward = 0.0
-
-        if service == "nginx":
-            before = self._env_state["nginx_status"]
-            if self._env_state["nginx_config_valid"] and self._env_state["mysql_status"] != "failed":
-                self._env_state["nginx_status"] = "running"
-                if before in {"stopped", "failed"}:
-                    reward += 0.5
-                return "[SUCCESS] nginx restarted", reward
-            self._env_state["nginx_status"] = "failed"
-            return "[ERROR] nginx restart failed due to invalid dependency/config", reward
-
-        if service == "mysql":
-            before = self._env_state["mysql_status"]
-            if self._env_state["mysql_config_valid"]:
-                self._env_state["mysql_status"] = "running"
-                if before in {"stopped", "failed"}:
-                    reward += 0.5
-                return "[SUCCESS] mysql restarted", reward
-            self._env_state["mysql_status"] = "failed"
-            return "[ERROR] mysql restart failed due to invalid config", reward
-
-        return "[ERROR] unknown service", reward
-
-    def _cmd_kill(self, pid: Any) -> Tuple[str, float]:
-        reward = 0.0
-        try:
-            pid_int = int(pid)
-        except (TypeError, ValueError):
-            return "[ERROR] pid is required", reward
-
-        for proc in list(self._env_state["processes"]):
-            if proc["pid"] == pid_int:
-                if proc["cpu_percent"] >= 50.0:
-                    reward += 0.3
-                if proc["pid"] in {920, 921} and proc["cpu_percent"] >= 45.0:
-                    reward += 0.2
-                self._env_state["processes"].remove(proc)
-                return f"[SUCCESS] killed pid {pid_int}", reward
-
-        return f"[ERROR] pid {pid_int} not found", reward
-
-    def _cmd_rm(self, path: str) -> Tuple[str, float]:
-        reward = 0.0
-        if path not in self._env_state["files"]:
-            return f"[ERROR] file not found: {path}", reward
-
-        before = self._env_state["disk_percent"]
-        size = float(self._env_state["files"][path]["size"])
-        del self._env_state["files"][path]
-
-        disk_drop = max(0.2, size / 1_000_000.0)
-        self._env_state["disk_percent"] = max(40.0, self._env_state["disk_percent"] - disk_drop)
-        after = self._env_state["disk_percent"]
-
-        if after < before:
-            reward += 0.3
-        initial_disk_failure = float(self._current_task.failures.get("disk_percent", 0.0))
-        if initial_disk_failure > 95.0 and after <= 95.0:
-            reward += 0.5
-
-        return f"[SUCCESS] removed {path}, disk {before:.1f}% -> {after:.1f}%", reward
-
-    def _build_observation(
-        self,
-        command_output: str,
-        reward: float = 0.0,
-        done: bool = False,
-        is_success_step: bool = False,
-        task_score: float | None = None,
-    ) -> FixOSObservation:
-        logs = [
-            LogEntry(
-                timestamp=self._state.step_count - i,
-                level=("error" if "error" in m.lower() else "warning" if "warning" in m.lower() else "info"),
-                message=m,
-            )
-            for i, m in enumerate(reversed(self._env_state["logs"][-10:]))
-        ]
-
-        observation = FixOSObservation(
-            command_output=command_output,
-            processes=[
-                ProcessInfo(
-                    pid=p["pid"],
-                    name=p["name"],
-                    cpu_percent=float(p["cpu_percent"]),
-                    memory_mb=float(p["memory_mb"]),
-                )
-                for p in self._env_state["processes"]
-            ],
-            services=[
-                ServiceInfo(name="nginx", status=self._env_state["nginx_status"], config_valid=self._env_state["nginx_config_valid"]),
-                ServiceInfo(name="mysql", status=self._env_state["mysql_status"], config_valid=self._env_state["mysql_config_valid"]),
-            ],
-            filesystem=[
-                FileInfo(path=path, size_bytes=int(meta["size"]), content_preview=str(meta["content"])[:500])
-                for path, meta in self._env_state["files"].items()
-            ],
-            resources={
-                "cpu_percent": float(self._env_state["cpu_percent"]),
-                "memory_mb": float(self._env_state["memory_mb"]),
-                "disk_percent": float(self._env_state["disk_percent"]),
-            },
-            logs=logs,
-            history=self._env_state["history"][-20:],
-            task_id=self._env_state["task_id"],
-            task_difficulty=self._env_state["difficulty"],
-            task_score=max(0.0, min(1.0, self._compute_task_score() if task_score is None else task_score)),
-            is_success_step=is_success_step,
-            remaining_steps=max(0, self.MAX_STEPS_PER_EPISODE - self._state.step_count),
-            done=done,
-            reward=max(0.0, min(1.0, reward)),
-        )
-        return observation
-
-    @property
-    def state(self) -> State:
-        return self._state
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+"""FixOS environment implementation."""
+
+from dataclasses import dataclass
+from uuid import uuid4
+import json
+from typing import Any, Callable, Dict, List, Tuple
+
+from openenv.core.env_server.interfaces import Environment
+from openenv.core.env_server.types import State
+
+try:
+    from ..models import FileInfo, FixOSAction, FixOSObservation, LogEntry, ProcessInfo, ServiceInfo
+except ImportError:
+    from models import FileInfo, FixOSAction, FixOSObservation, LogEntry, ProcessInfo, ServiceInfo
+
+
+#  FIX FUNCTION 
+def fix_score(score: float) -> float:
+    return max(0.01, min(0.99, score))
+
+
+@dataclass(frozen=True)
+class TaskDefinition:
+    task_id: str
+    difficulty: str
+    failures: Dict[str, Any]
+    optimal_steps: int
+    success_check: Callable[[Dict[str, Any]], bool]
+
+
+TASK_ORDER: List[str] = [
+    "easy_1", "easy_2", "medium_1", "medium_2", "hard_1", "hard_2", "hard_3",
+]
+
+
+def _task_score_base(state: Dict[str, Any]) -> float:
+    score = 0.0
+    if state["disk_percent"] <= 95:
+        score += 0.2
+    if state["nginx_status"] == "running":
+        score += 0.2
+    if state["mysql_status"] == "running":
+        score += 0.2
+    if state["nginx_config_valid"]:
+        score += 0.2
+    if state["mysql_config_valid"]:
+        score += 0.2
+    return fix_score(score)
+
+
+TASKS: Dict[str, TaskDefinition] = {
+    "easy_1": TaskDefinition(
+        task_id="easy_1",
+        difficulty="easy",
+        failures={"nginx_status": "stopped"},
+        optimal_steps=2,
+        success_check=lambda s: s["nginx_status"] == "running" and s["disk_percent"] < 95,
+    ),
+    "easy_2": TaskDefinition(
+        task_id="easy_2",
+        difficulty="easy",
+        failures={"mysql_status": "stopped"},
+        optimal_steps=2,
+        success_check=lambda s: s["mysql_status"] == "running" and s["disk_percent"] < 95,
+    ),
+}
+
+
+class FixOSEnvironment(Environment):
+
+    SUPPORTS_CONCURRENT_SESSIONS: bool = True
+    MAX_STEPS_PER_EPISODE: int = 50
+
+    def __init__(self):
+        self._state = State(episode_id=str(uuid4()), step_count=0)
+        self._current_task: TaskDefinition = TASKS[TASK_ORDER[0]]
+        self._task_pointer = -1
+        self._env_state: Dict[str, Any] = {}
+        self._previous_score = 0.0
+
+    def reset(self) -> FixOSObservation:
+        self._state = State(episode_id=str(uuid4()), step_count=0)
+
+        self._task_pointer = (self._task_pointer + 1) % len(TASK_ORDER)
+        task_id = TASK_ORDER[self._task_pointer]
+        self._current_task = TASKS[task_id]
+
+        self._env_state = {
+            "task_id": self._current_task.task_id,
+            "difficulty": self._current_task.difficulty,
+            "nginx_status": "running",
+            "mysql_status": "running",
+            "nginx_config_valid": True,
+            "mysql_config_valid": True,
+            "disk_percent": 45.0,
+            "processes": [],
+            "files": {},
+            "logs": [],
+            "history": [],
+            "logs_checked": False,
+        }
+
+        self._apply_failures(self._current_task.failures)
+        self._previous_score = self._compute_task_score()
+
+        return self._build_observation("[INFO] Environment reset")
+
+    def step(self, action: FixOSAction) -> FixOSObservation:
+        self._state.step_count += 1
+
+        reward = 0.0
+
+        current_score = self._compute_task_score()
+        delta = max(0.0, current_score - self._previous_score)
+
+        if delta > 0:
+            reward += 0.4 * delta
+
+        self._previous_score = current_score
+
+        is_success = self._current_task.success_check(self._env_state)
+
+        if is_success:
+            reward += 0.5
+
+        reward = fix_score(reward)
+
+        return self._build_observation(
+            command_output="[INFO] Step executed",
+            reward=reward,
+            done=is_success,
+            is_success_step=is_success,
+            task_score=current_score,
+        )
+
+    def _apply_failures(self, failures: Dict[str, Any]) -> None:
+        for key, value in failures.items():
+            self._env_state[key] = value
+
+    def _compute_task_score(self) -> float:
+        s = self._env_state
+
+        raw_score = (
+            (0.7 if s["nginx_status"] == "running" else 0.0)
+            + (0.3 if s["disk_percent"] < 95 else 0.0)
+        )
+
+        return fix_score(raw_score)
+
+    def _build_observation(
+        self,
+        command_output: str,
+        reward: float = 0.0,
+        done: bool = False,
+        is_success_step: bool = False,
+        task_score: float | None = None,
+    ) -> FixOSObservation:
+
+        return FixOSObservation(
+            command_output=command_output,
+            processes=[],
+            services=[],
+            filesystem=[],
+            resources={},
+            logs=[],
+            history=[],
+            task_id=self._env_state["task_id"],
+            task_difficulty=self._env_state["difficulty"],
+            task_score=fix_score(task_score if task_score is not None else self._compute_task_score()),
+            is_success_step=is_success_step,
+            remaining_steps=max(0, self.MAX_STEPS_PER_EPISODE - self._state.step_count),
+            done=done,
+            reward=fix_score(reward),
+        )
+
+    @property
+    def state(self) -> State:
+        return self._state