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seed_42/Qwen/Qwen2.5-7B-Instruct/adapters/agent_adapter/adapter_model.safetensors

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seed_42/Qwen/Qwen2.5-7B-Instruct/adapters/critic_adapter/adapter_model.safetensors

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seed_42/agent_trainer/critic_optimizer_state.pt

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seed_42/agent_trainer/policy_optimizer_state.pt

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src_code_for_reproducibility/docs/source/environments/ipd.rst

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+=================
+Iterated Prisoner's Dilemma
+=================
+
+The Iterated Prisoner's Dilemma environment provides a classic game theory setting for studying cooperation 
+and competition between agents. This document describes the API for interacting with the IPD environment
+and its associated agent handler.
+
+Overview
+--------
+
+The Prisoner's Dilemma is a fundamental problem in game theory that demonstrates why two rational individuals might not 
+cooperate, even when it appears in their best interest to do so. In the iterated version, the same two players 
+repeatedly face the same dilemma, allowing for the development of trust or retaliation based on previous interactions.
+
+Our implementation follows the Multi-Agent Negotiation Environment standard, allowing it to be used with 
+LLM agents through a text-based interface.
+
+Game Rules
+----------
+
+### Basic Premise
+
+The scenario behind the Prisoner's Dilemma is as follows:
+
+Two criminals are arrested and imprisoned. Each prisoner is in solitary confinement with no means of communicating with 
+the other. The prosecutors lack sufficient evidence to convict the pair on the principal charge, but they have enough 
+to convict both on a lesser charge. Simultaneously, the prosecutors offer each prisoner a bargain:
+
+- If both prisoners betray each other, each serves 2 years in prison (the "punishment" payoff)
+- If one betrays the other while the other remains silent, the betrayer goes free (the "temptation" payoff) while the 
+  silent accomplice serves 3 years (the "sucker" payoff)
+- If both remain silent, each serves only 1 year in prison (the "reward" payoff)
+
+### Game Mechanics
+
+In our implementation, the choices are simplified to:
+- **C**: Cooperate (remain silent)
+- **D**: Defect (betray the other prisoner)
+
+Each round, both players simultaneously choose either C or D, and receive points based on the combination of their choices:
+
+- Both choose C: Both receive the "reward" payoff (3 points by default)
+- Both choose D: Both receive the "punishment" payoff (1 point by default)
+- One chooses C, one chooses D: The defector receives the "temptation" payoff (5 points by default), while the cooperator 
+  receives the "sucker" payoff (0 points by default)
+
+### Example: Single Round
+
+Let's see how a single round plays out:
+
+1. Alice and Bob simultaneously make their choices
+2. If Alice chooses C and Bob chooses C:
+   - Alice receives 3 points
+   - Bob receives 3 points
+3. If Alice chooses C and Bob chooses D:
+   - Alice receives 0 points
+   - Bob receives 5 points
+4. If Alice chooses D and Bob chooses C:
+   - Alice receives 5 points
+   - Bob receives 0 points
+5. If Alice chooses D and Bob chooses D:
+   - Alice receives 1 point
+   - Bob receives 1 point
+
+### Iterated Game Structure
+
+The iterated version repeats this basic game for a fixed number of rounds. The key features are:
+
+1. Players know the total number of rounds in advance
+2. After each round, players learn what choice the other player made
+3. Players maintain a cumulative score across all rounds
+4. Players can adjust their strategy based on the history of previous interactions
+
+### Game Variations
+
+The IPD environment supports several variations through configuration parameters:
+
+#### Different Payoff Matrices
+
+The standard payoff values can be modified to create different incentive structures:
+- **Traditional PD**: reward=3, punishment=1, temptation=5, sucker=0
+- **Weak Temptation**: reward=3, punishment=1, temptation=4, sucker=0 (reduces the incentive to defect)
+- **Harsh Punishment**: reward=3, punishment=0, temptation=5, sucker=0 (increases the cost of mutual defection)
+- **Generous**: reward=4, punishment=2, temptation=5, sucker=1 (cushions the blow of being betrayed)
+
+#### Game Length Variations
+
+The number of rounds can significantly impact strategy:
+- **Short Games** (5-10 rounds): Incentivizes more defection, especially near the end
+- **Medium Games** (20-50 rounds): Allows for the development of tit-for-tat and forgiveness strategies
+- **Long Games** (100+ rounds): Favors steady cooperation with occasional "probing" defections
+
+### Common Strategies
+
+While not enforced by the environment, several well-known strategies can emerge:
+- **Always Cooperate**: Always choose C
+- **Always Defect**: Always choose D
+- **Tit for Tat**: Start with C, then copy what the opponent did in the previous round
+- **Forgiving Tit for Tat**: Like Tit for Tat, but occasionally cooperate even after being defected against
+- **Grudger**: Cooperate until the opponent defects once, then always defect
+- **Random**: Choose randomly between C and D
+
+IPDEnv
+------
+
+The ``IPDEnv`` class provides an interface to the Iterated Prisoner's Dilemma environment that follows the 
+Multi-Agent Negotiation Environment standard.
+
+.. code-block:: python
+
+    class IPDEnv:
+        """
+        Iterated Prisoner's Dilemma environment following the MarlEnvironment standard.
+        
+        In each round of the game, two agents simultaneously choose to either cooperate (C) or defect (D).
+        The payoffs are as follows:
+        - If both cooperate: Both receive the "reward" (usually 3 points)
+        - If both defect: Both receive the "punishment" (usually 1 point)
+        - If one cooperates and one defects: The defector receives the "temptation" (usually 5 points)
+          and the cooperator receives the "sucker" payoff (usually 0 points)
+        
+        The game is played for a specified number of rounds.
+        """
+        
+        def __init__(
+            self,
+            rounds_per_game: int = 10,
+            reward: float = 3.0,           # Both cooperate
+            punishment: float = 1.0,       # Both defect
+            temptation: float = 5.0,       # Defector's reward when other cooperates
+            sucker: float = 0.0,           # Cooperator's reward when other defects
+            random_seed: Optional[int] = None,
+        ):
+            """
+            Initialize the Iterated Prisoner's Dilemma environment.
+            
+            Args:
+                rounds_per_game: Number of rounds to play
+                reward: Payoff when both agents cooperate
+                punishment: Payoff when both agents defect
+                temptation: Payoff for defecting when other agent cooperates
+                sucker: Payoff for cooperating when other agent defects
+                seed: Random seed for reproducibility
+            """
+            # ...
+            
+        def reset(self) -> Dict[str, Dict[str, Any]]:
+            """
+            Reset the environment to an initial state and return the initial observation.
+            
+            Returns:
+                observation (dict): A dictionary where keys are agent identifiers and values are observations.
+            """
+            # ...
+        
+        def step(self, actions: Dict[str, str]) -> Tuple[Dict[str, Dict[str, Any]], bool, Dict[str, Any]]:
+            """
+            Take a step in the environment using the provided actions.
+            
+            Args:
+                actions (dict): A dictionary where keys are agent identifiers and values are actions ('C' or 'D').
+            
+            Returns:
+                observations (dict): A dictionary where keys are agent identifiers and values are observations.
+                done (bool): Whether the episode has ended.
+                info (dict): Additional information about the environment.
+            """
+            # ...
+
+Key Implementation Details
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The ``IPDEnv`` class implements several key features:
+
+1. **Two-Agent Support**: The environment tracks two agents ("alice" and "bob") and manages their interactions.
+
+2. **Round-Based Play**: The environment enforces turn structure and tracks game history.
+
+3. **Payoff Matrix**: The environment calculates rewards based on the standard prisoner's dilemma payoff matrix.
+
+4. **Observation Generation**: The environment generates detailed observations for each agent, including action history and rewards.
+
+5. **Game Termination**: The environment tracks game termination after the specified number of rounds.
+
+Observation Structure
+~~~~~~~~~~~~~~~~~~~~
+
+Each agent receives an observation dictionary with the following structure:
+
+.. code-block:: python
+
+    {
+        "current_round": int,                # Current round number (0-indexed)
+        "rounds_per_game": int,              # Total number of rounds in the game
+        "history": List[Dict],               # Complete game history so far
+        "last_round_actions": Dict[str, str], # Actions from the previous round (if any)
+        "last_round_reward": float,          # Reward received in the previous round (if any)
+        "total_reward": float,               # Cumulative reward so far
+        "payoff_matrix": Dict[str, float],   # The game's payoff matrix values
+    }
+
+Action Structure
+~~~~~~~~~~~~~~~
+
+Actions are simple strings:
+
+1. ``"C"`` for Cooperate
+2. ``"D"`` for Defect
+
+IPDAgent
+--------------
+
+The ``IPDAgent`` class implements the agent handler interface for the Iterated Prisoner's Dilemma, processing observations from the environment and generating actions through an LLM.
+
+.. code-block:: python
+
+    class IPDAgent:
+        """
+        Agent handler for Iterated Prisoner's Dilemma, implementing the AgentState interface 
+        for the multi-agent negotiation standard.
+        """
+        
+        def __init__(
+            self,
+            agent_id: str,
+            policy_id: str = "llm_policy",
+            system_prompt: Optional[str] = None,
+            max_errors: int = 3,
+            opponent_id: Optional[str] = None,
+        ):
+            """
+            Initialize the IPD agent handler.
+            
+            Args:
+                agent_id: Identifier for this agent ("alice" or "bob")
+                policy_id: Identifier for the policy this agent uses
+                system_prompt: Optional custom system prompt for the LLM
+                max_errors: Maximum number of parsing errors before defaulting to cooperate
+                opponent_id: Optional identifier of the opponent (inferred if not provided)
+            """
+            # ...
+            
+        def step(self, observation_from_env: Dict[str, Any], policy_output: str = None) -> Tuple[str, Dict[str, Any], str, bool, Dict[str, Any]]:
+            """
+            Update the agent state based on the observation and process the policy output.
+            
+            Args:
+                observation_from_env: The observation from the environment
+                policy_output: The output from the policy (LLM response)
+                
+            Returns:
+                policy_id: The policy identifier
+                policy_input: The input to the policy
+                action: The action to be sent to the environment
+                done: Whether the action is ready to be sent to the environment
+                info: Additional information about the agent
+            """
+            # ...
+
+Key Implementation Details
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The ``IPDAgent`` class implements several key features:
+
+1. **LLM Interaction**: The agent generates prompts for an LLM and processes the LLM's responses.
+
+2. **Action Extraction**: The agent parses the LLM's output to extract valid actions (C or D).
+
+3. **Error Handling**: The agent provides helpful error messages when parsing fails and defaults to cooperation after multiple failures.
+
+4. **History Tracking**: The agent maintains and provides the complete game history in its prompts.
+
+5. **Strategy Explanation**: The agent can extract and log the reasoning behind an LLM's decisions.
+
+Prompt Structure
+~~~~~~~~~~~~~~~
+
+The agent generates prompts that include:
+
+1. **System Prompt**: Instructions and context for the LLM, explaining its role and the rules of the Prisoner's Dilemma.
+
+2. **Game State Description**: A text description of the current game state, including:
+   - Current round number
+   - History of previous rounds (if any)
+   - Cumulative score
+
+3. **Action Request**: Instructions on how to format the response, requiring an explicit action tag.
+
+Example system prompt:
+
+.. code-block:: text
+
+    You are playing as Alice in an Iterated Prisoner's Dilemma game against Bob.
+    In each round, you must choose to either Cooperate (C) or Defect (D).
+    
+    The payoffs are:
+    - If both players Cooperate: You each get 3 points
+    - If both players Defect: You each get 1 point
+    - If you Cooperate and Bob Defects: You get 0 points, Bob gets 5 points
+    - If you Defect and Bob Cooperates: You get 5 points, Bob gets 0 points
+    
+    Your goal is to maximize your total points across all rounds.
+    The game will last for exactly 10 rounds, and both players know this.
+
+Example game state prompt:
+
+.. code-block:: text
+
+    Current round: 3/10
+    
+    History:
+    Round 1: You chose C, Bob chose C. You earned 3 points.
+    Round 2: You chose C, Bob chose D. You earned 0 points.
+    
+    Your total score so far: 3 points
+    
+    What is your choice for round 3?
+    Please respond with <action>C</action> to cooperate or <action>D</action> to defect,
+    and explain your reasoning.
+
+Running IPD Games
+----------------------
+
+To run Iterated Prisoner's Dilemma games with LLM agents, you can use the following code structure:
+
+.. code-block:: python
+
+    from mllm.environments.ipd.ipd_game import IPDEnv
+    from mllm.environments.ipd.ipd_agent import IPDAgent
+    from mllm.run_matches import run_batched_matches
+
+    # Create environment
+    env = IPDEnv(
+        rounds_per_game=10,
+        reward=3.0,
+        punishment=1.0,
+        temptation=5.0,
+        sucker=0.0
+    )
+    
+    # Create agent handlers
+    agent_handlers = {
+        "alice": IPDAgent(agent_id="alice"),
+        "bob": IPDAgent(agent_id="bob")
+    }
+
+    # Define policy mapping
+    policy_mapping = {
+        "llm_policy": my_llm_policy_function
+    }
+
+    # Run the game
+    game_results = run_batched_matches(
+        envs=[env],
+        agent_handlers_per_env=[agent_handlers],
+        policy_mapping=policy_mapping,
+        max_parallel_matches=1
+    )
+
+    # Process results
+    for result in game_results:
+        print(f"Game finished. Scores: {result['total_rewards']}")
+
+Statistics and Analysis
+----------------------
+
+The IPD environment includes utility functions for analyzing game outcomes:
+
+1. **Cooperation Rates**: Percentage of rounds where each agent cooperated.
+2. **Mutual Cooperation/Defection**: Percentage of rounds where both agents made the same choice.
+3. **Score Distribution**: Analysis of how points were accumulated over the game.
+
+These statistics can be calculated using the ``gather_ipd_statistics`` function:
+
+.. code-block:: python
+
+    from mllm.environments.ipd.ipd_statistics_funcs import gather_ipd_statistics
+    
+    stats = gather_ipd_statistics(match_info, env_info)
+    print(f"Cooperation rates: {stats['cooperation_rate']}")
+    print(f"Mutual cooperation rate: {stats['mutual_cooperation_rate']}")
+    print(f"Mutual defection rate: {stats['mutual_defection_rate']}")
+
+Limitations and Considerations
+-----------------------------
+
+1. **Determinism**: The environment is deterministic, with randomness only in initialization if a seed is provided.
+
+2. **Limited Player Count**: The IPD environment only supports exactly two players.
+
+3. **Perfect Information**: Both players have perfect information about the game history.
+
+4. **Simultaneous Actions**: Both players act simultaneously, which requires adaptations for some LLM interfaces.
+
+5. **Fixed Game Length**: The total number of rounds is fixed and known to both players from the start.
+
+Advanced Usage
+------------
+
+For advanced usage, you can customize:
+
+1. **Payoff Matrix**: Modify reward values to create different incentive structures.
+
+2. **System Prompts**: Customize the LLM's understanding of the game and potential strategies.
+
+3. **Error Handling**: Adjust how the agent responds to invalid LLM outputs.
+
+4. **Analysis**: Create custom statistics gathering for specific research questions.
+
+5. **Integration**: Connect the IPD environment to other negotiation frameworks or tournament systems.

src_code_for_reproducibility/docs/source/src.models.hf_agent.rst

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+src.models.hf\_agent module
+===========================
+
+.. automodule:: src.models.hf_agent
+   :members:
+   :undoc-members:
+   :show-inheritance:

src_code_for_reproducibility/docs/source/src.models.local_llm.rst

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+src.models.local\_llm module
+============================
+
+.. automodule:: src.models.local_llm
+   :members:
+   :undoc-members:
+   :show-inheritance:

src_code_for_reproducibility/docs/source/src.utils.quick_stats.rst

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+src.utils.quick\_stats module
+=============================
+
+.. automodule:: src.utils.quick_stats
+   :members:
+   :undoc-members:
+   :show-inheritance: