dogfooding: Update prompts with model selection

Author: antonsynd

.gitignore

@@ -1,3 +1,6 @@
+# Screen files
+screenlog.*
+
 # SQLite database files
 *.db
 *.db-wal

build_tools/shared/backends/copilot.py

@@ -263,13 +263,9 @@ def _build_command(self, prompt: str, config: BackendConfig) -> list[str]:
                 tool_name = tool.value.lower()
                 cmd.extend(["--allow-tool", tool_name])
 
-        # Note: Copilot CLI doesn't support model selection via CLI flags
-        # If model is specified, we log a warning but proceed
-        if config.model and self._heartbeat_callback:
-            self._heartbeat_callback(
-                f"Warning: Copilot CLI doesn't support model selection. "
-                f"Ignoring model: {config.model}"
-            )
+        # Add model if specified
+        if config.model:
+            cmd.extend(["--model", config.model])
 
         return cmd
 

build_tools/sharpy_dogfood/backends.py

@@ -200,6 +200,7 @@ async def execute(
         shared_config = SharedBackendConfig(
             timeout_seconds=int(effective_timeout),
             allowed_tools={ToolPermission.READ},  # Read-only for validation
+            model=self.config.model,  # Use model from backend config
         )
 
         # Execute via shared backend (includes heartbeat logging)
@@ -273,6 +274,7 @@ async def execute(
         shared_config = SharedBackendConfig(
             timeout_seconds=int(effective_timeout),
             allowed_tools={ToolPermission.READ},  # Read-only for validation
+            model=self.config.model,  # Use model from backend config
         )
 
         # Execute via shared backend (includes heartbeat logging)
@@ -292,7 +294,7 @@ async def execute(
 class BackendManager:
     """Manages multiple AI backends with automatic failover."""
 
-    BACKEND_PRIORITY = ["claude", "copilot"]
+    BACKEND_PRIORITY: list[BackendType] = ["claude", "copilot"]
 
     def __init__(self, config: Config):
         self.config = config

build_tools/sharpy_dogfood/config.py

@@ -42,6 +42,14 @@ class BackendConfig:
     claude_cli_path: Optional[str] = None
     copilot_cli_path: Optional[str] = None
 
+    # Model to use for this backend (if None, uses backend default)
+    model: Optional[str] = None
+
+
+# Default models for dogfooding
+CLAUDE_CLI_MODEL = "claude-sonnet-4-5-20250929"  # Full model name for Claude CLI
+COPILOT_CLI_MODEL = "claude-sonnet-4.5"  # Copilot CLI model format
+
 
 @dataclass
 class Config(BaseConfig):
@@ -77,8 +85,8 @@ class Config(BaseConfig):
     # Backend configuration
     backends: dict[BackendType, BackendConfig] = field(
         default_factory=lambda: {
-            "claude": BackendConfig(name="claude"),
-            "copilot": BackendConfig(name="copilot"),
+            "claude": BackendConfig(name="claude", model=CLAUDE_CLI_MODEL),
+            "copilot": BackendConfig(name="copilot", model=COPILOT_CLI_MODEL),
         }
     )
 

build_tools/sharpy_dogfood/prompts.py

@@ -155,7 +155,7 @@ def get_code_generation_prompt(
     spec_context: str,
     feature_focus: str = "general",
     complexity: str = "simple",
-    example_snippets: list[str] = None,
+    example_snippets: list[str] | None = None,
     existing_fixtures_section: str = "",
 ) -> str:
     """Generate a prompt for creating Sharpy code.