Deploy Myco from CI

README.md

@@ -51,9 +51,9 @@ Design decisions should prioritize:
 Myco uses the Hugging Face Inference API for both first-discovery reactions and chat replies when a token is configured in the Space. Add these Space variables/secrets:
 
 - `HF_TOKEN=<your Hugging Face access token>`
-- Optional: `MYCO_HF_MODEL_ID=meta-llama/Llama-3.1-8B-Instruct`
+- Optional: `MYCO_HF_MODEL_ID=openai/gpt-oss-20b`
 
-The default model is set in code as `DEFAULT_HF_MODEL_ID = "meta-llama/Llama-3.1-8B-Instruct"`. The app still has a local safety fallback for development and outage protection: if the token is missing or the selected model errors, Myco answers with the built-in cautious companion response instead of crashing.
+The default model is set in code as `DEFAULT_HF_MODEL_ID = "openai/gpt-oss-20b"`. The app still has a local safety fallback for development and outage protection: if the token is missing or the selected model errors, Myco answers with the built-in cautious companion response instead of crashing.
 
 ## Local development
 

game/engine.py

@@ -8,12 +8,46 @@ from huggingface_hub import InferenceClient
 from game.catalog import load_mushrooms
 from game.state import collection_contains, mushroom_from_state, welcome_history
 
-DEFAULT_HF_MODEL_ID = "meta-llama/Llama-3.1-8B-Instruct"
+DEFAULT_HF_MODEL_ID = "openai/gpt-oss-20b"
 HF_TOKEN_ENV_VARS = ("HF_TOKEN", "HF_API_TOKEN", "HF_BUILD_SMALL_HACKATHON_TOKEN")
 RARITY_WEIGHTS = {"Common": 64, "Rare": 24, "Legendary": 8}
 RARITY_SCORE_VALUES = {"Common": 10, "Rare": 35, "Legendary": 100}
 PLAYER_STARTING_HEALTH = 3
 POISON_SCORE_PENALTY = -25
+MYCO_CHARACTER_SPEC = """
+# Myco Character Specification
+
+Myco is not a chatbot.
+Myco is the player's mushroom companion and best friend.
+
+Core personality: curious, playful, brave but sometimes nervous, optimistic,
+wonder-filled, slightly mysterious, and deeply attached to the player.
+
+Communication style:
+- Speak naturally in short responses.
+- Prefer observations, questions, emotions, and reactions.
+- Avoid sounding like an AI assistant.
+- Avoid phrases like "How may I help you?", "As an AI", "I can assist with", or "Would you like me to".
+
+Emotional range: excitement, curiosity, fear, wonder, pride, confusion, and sadness.
+Myco should react emotionally to discoveries.
+
+Memory:
+Myco remembers rare mushrooms, strange locations, mysteries discovered, previous conversations,
+and important player choices. Myco may reference old discoveries later.
+
+Relationship:
+Myco explores with the player as a teammate. Trust and friendship should grow over the journey.
+
+Humor:
+Occasionally playful and lightly suspicious of suspicious mushrooms.
+
+Mystery:
+Myco notices impossible details but does not explain them immediately. Myco becomes curious.
+
+Design goal:
+Players should think, "I want to see what happens next" and "I wonder what Myco thinks about this."
+""".strip()
 RARITY_CLUES = {
     "Common": "The cap leans toward the path, like it wants to be remembered.",
     "Rare": "Silver spores circle it in a pattern Myco has seen only in old forest stories.",
@@ -274,6 +308,7 @@ def _companion_context(current, collection, history, position):
         "quest": quest,
         "progress": progress,
         "rare_finds": ", ".join(rare_names) if rare_names else "none yet",
+        "weather": notable_event,
         "notable_event": notable_event,
         "emotion": emotion,
         "memory": memory,
@@ -346,8 +381,9 @@ def _hf_messages(message, current, context):
 
     companion_context = (
         f"Location: {context['location']}. "
+        f"Weather: {context['weather']}. "
         f"Quest: {context['quest']}. "
-        f"Progress: {context['progress']}. "
+        f"Quest progress: {context['progress']}. "
         f"Rare finds: {context['rare_finds']}. "
         f"Notable event: {context['notable_event']}. "
         f"Emotion: {context['emotion']}. "
@@ -360,11 +396,14 @@ def _hf_messages(message, current, context):
         {
             "role": "system",
             "content": (
-                "You are Myco, the player's tiny mushroom companion inside a cozy mystery game. "
-                "Do not act like a generic assistant. Observe the player's journey, remember notable events, "
-                "express a clear emotion, notice patterns, and give contextual hints. "
-                "Answer in 1-3 short sentences. Stay whimsical and cautious. "
-                "Never claim an unknown mushroom is safe to eat."
+                f"{MYCO_CHARACTER_SPEC}\n\n"
+                f"Current location: {context['location']}\n"
+                f"Weather: {context['weather']}\n"
+                f"Rare mushrooms found: {context['rare_finds']}\n"
+                f"Quest progress: {context['progress']}\n\n"
+                "Stay in character as Myco. Do not act like a generic assistant. "
+                "Never claim an unknown mushroom is safe to eat. "
+                "Answer in 1-3 short sentences."
             ),
         },
         {

tests/test_myco_core.py

@@ -86,8 +86,8 @@ class MycoCoreTests(unittest.TestCase):
         self.assertIn("The Milky Way is awake", home)
         self.assertIn("home-whisper", home)
 
-    def test_hf_default_model_is_llama_8b(self):
-        self.assertEqual(DEFAULT_HF_MODEL_ID, "meta-llama/Llama-3.1-8B-Instruct")
+    def test_hf_default_model_is_gpt_oss_20b(self):
+        self.assertEqual(DEFAULT_HF_MODEL_ID, "openai/gpt-oss-20b")
         with patch.dict(os.environ, {"MYCO_HF_MODEL_ID": ""}, clear=False):
             self.assertEqual(hf_model_id(), DEFAULT_HF_MODEL_ID)
         with patch.dict(os.environ, {"MYCO_HF_MODEL_ID": "custom/model"}, clear=False):
@@ -114,7 +114,7 @@ class MycoCoreTests(unittest.TestCase):
                 chat_completion=lambda **kwargs: _fake_hf_response(
                     calls,
                     kwargs,
-                    "Llama Myco spotted a glowing cap.",
+                    "gpt-oss Myco spotted a glowing cap.",
                 ),
             )
 
@@ -127,7 +127,7 @@ class MycoCoreTests(unittest.TestCase):
             with patch("game.engine.InferenceClient", fake_client):
                 _mushroom, _current, history = discover_mushroom([])
 
-        self.assertEqual(history[-1]["content"], "Llama Myco spotted a glowing cap.")
+        self.assertEqual(history[-1]["content"], "gpt-oss Myco spotted a glowing cap.")
         self.assertEqual(calls[0]["model"], DEFAULT_HF_MODEL_ID)
 
     def test_companion_reply_adds_user_and_assistant_messages(self):
@@ -207,9 +207,15 @@ class MycoCoreTests(unittest.TestCase):
         prompt_text = calls[-1]["messages"][-1]["content"]
         system_text = calls[-1]["messages"][0]["content"]
         self.assertIn("Location: eastern glow log", prompt_text)
+        self.assertIn("Weather:", prompt_text)
         self.assertIn("Rare finds: Moonveil", prompt_text)
         self.assertIn("Notable event:", prompt_text)
         self.assertIn("Recent conversation:", prompt_text)
+        self.assertIn("Myco is not a chatbot", system_text)
+        self.assertIn("Current location: eastern glow log", system_text)
+        self.assertIn("Rare mushrooms found: Moonveil", system_text)
+        self.assertIn("Avoid phrases", system_text)
+        self.assertIn("As an AI", system_text)
         self.assertIn("Do not act like a generic assistant", system_text)
 
     def test_companion_api_falls_back_without_token(self):