diff --git a/README.md b/README.md
index e47164d..e219194 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # A2A Agent Template
 
-A minimal template for building [A2A (Agent-to-Agent)](https://a2a-protocol.org/latest/) agents.
+A minimal template for building [A2A (Agent-to-Agent)](https://a2a-protocol.org/latest/) green agents compatible with the [AgentBeats](https://agentbeats.dev) platform.
 
 ## Project Structure
 
diff --git a/pyproject.toml b/pyproject.toml
index a98a765..186c121 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,11 +1,12 @@
 [project]
-name = "agent-template"
+name = "green-agent-template"
 version = "0.1.0"
-description = "A template for A2A agents"
+description = "A template for A2A green agents"
 readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
     "a2a-sdk[http-server]>=0.3.20",
+    "pydantic>=2.12.5",
     "uvicorn>=0.38.0",
 ]
 
diff --git a/src/agent.py b/src/agent.py
index 75ad45d..b539db4 100644
--- a/src/agent.py
+++ b/src/agent.py
@@ -1,15 +1,41 @@
+from typing import Any
+from pydantic import BaseModel, HttpUrl, ValidationError
 from a2a.server.tasks import TaskUpdater
-from a2a.types import Message, TaskState, Part, TextPart
+from a2a.types import Message, TaskState, Part, TextPart, DataPart
 from a2a.utils import get_message_text, new_agent_text_message
 
 from messenger import Messenger
 
 
+class EvalRequest(BaseModel):
+    """Request format sent by the AgentBeats platform to green agents."""
+    participants: dict[str, HttpUrl] # role -> agent URL
+    config: dict[str, Any]
+
+
 class Agent:
+    # Fill in: list of required participant roles, e.g. ["pro_debater", "con_debater"]
+    required_roles: list[str] = []
+    # Fill in: list of required config keys, e.g. ["topic", "num_rounds"]
+    required_config_keys: list[str] = []
+
     def __init__(self):
         self.messenger = Messenger()
         # Initialize other state here
 
+    def validate_request(self, request: EvalRequest) -> tuple[bool, str]:
+        missing_roles = set(self.required_roles) - set(request.participants.keys())
+        if missing_roles:
+            return False, f"Missing roles: {missing_roles}"
+
+        missing_config_keys = set(self.required_config_keys) - set(request.config.keys())
+        if missing_config_keys:
+            return False, f"Missing config keys: {missing_config_keys}"
+
+        # Add additional request validation here
+
+        return True, "ok"
+
     async def run(self, message: Message, updater: TaskUpdater) -> None:
         """Implement your agent logic here.
 
@@ -21,12 +47,29 @@ async def run(self, message: Message, updater: TaskUpdater) -> None:
         """
         input_text = get_message_text(message)
 
-        # Replace this example code with your agent logic
+        try:
+            request: EvalRequest = EvalRequest.model_validate_json(input_text)
+            ok, msg = self.validate_request(request)
+            if not ok:
+                await updater.reject(new_agent_text_message(msg))
+                return
+        except ValidationError as e:
+            await updater.reject(new_agent_text_message(f"Invalid request: {e}"))
+            return
+
+        # Replace example code below with your agent logic
+        # Use request.participants to get participant agent URLs by role
+        # Use request.config for assessment parameters
 
         await updater.update_status(
             TaskState.working, new_agent_text_message("Thinking...")
         )
         await updater.add_artifact(
-            parts=[Part(root=TextPart(text=input_text))],
-            name="Echo",
+            parts=[
+                Part(root=TextPart(text="The agent performed well.")),
+                Part(root=DataPart(data={
+                    # structured assessment results
+                }))
+            ],
+            name="Result",
         )
diff --git a/uv.lock b/uv.lock
index 204a82a..76e8bac 100644
--- a/uv.lock
+++ b/uv.lock
@@ -24,31 +24,6 @@ http-server = [
     { name = "starlette" },
 ]
 
-[[package]]
-name = "agent-template"
-version = "0.1.0"
-source = { virtual = "." }
-dependencies = [
-    { name = "a2a-sdk", extra = ["http-server"] },
-    { name = "uvicorn" },
-]
-
-[package.optional-dependencies]
-test = [
-    { name = "httpx" },
-    { name = "pytest" },
-    { name = "pytest-asyncio" },
-]
-
-[package.metadata]
-requires-dist = [
-    { name = "a2a-sdk", extras = ["http-server"], specifier = ">=0.3.20" },
-    { name = "httpx", marker = "extra == 'test'", specifier = ">=0.28.1" },
-    { name = "pytest", marker = "extra == 'test'", specifier = ">=8.0.0" },
-    { name = "pytest-asyncio", marker = "extra == 'test'", specifier = ">=0.24.0" },
-    { name = "uvicorn", specifier = ">=0.38.0" },
-]
-
 [[package]]
 name = "annotated-doc"
 version = "0.0.4"
@@ -216,6 +191,33 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/c4/ab/09169d5a4612a5f92490806649ac8d41e3ec9129c636754575b3553f4ea4/googleapis_common_protos-1.72.0-py3-none-any.whl", hash = "sha256:4299c5a82d5ae1a9702ada957347726b167f9f8d1fc352477702a1e851ff4038", size = 297515 },
 ]
 
+[[package]]
+name = "green-agent-template"
+version = "0.1.0"
+source = { virtual = "." }
+dependencies = [
+    { name = "a2a-sdk", extra = ["http-server"] },
+    { name = "pydantic" },
+    { name = "uvicorn" },
+]
+
+[package.optional-dependencies]
+test = [
+    { name = "httpx" },
+    { name = "pytest" },
+    { name = "pytest-asyncio" },
+]
+
+[package.metadata]
+requires-dist = [
+    { name = "a2a-sdk", extras = ["http-server"], specifier = ">=0.3.20" },
+    { name = "httpx", marker = "extra == 'test'", specifier = ">=0.28.1" },
+    { name = "pydantic", specifier = ">=2.12.5" },
+    { name = "pytest", marker = "extra == 'test'", specifier = ">=8.0.0" },
+    { name = "pytest-asyncio", marker = "extra == 'test'", specifier = ">=0.24.0" },
+    { name = "uvicorn", specifier = ">=0.38.0" },
+]
+
 [[package]]
 name = "h11"
 version = "0.16.0"