Skip subagents for gemini (#5257)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

scripts/test_providers.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+if [ -f .env ]; then
+  export $(grep -v '^#' .env | xargs)
+fi
+
+echo "Building goose..."
+cargo build --release --bin goose
+echo ""
+
+SCRIPT_DIR=$(pwd)
+
+PROVIDERS=(
+  "openrouter:anthropic/claude-sonnet-4.5:google/gemini-flash-2.5:qwen/qwen3-coder"
+  "openai:gpt-4o:gpt-4o-mini:gpt-3.5-turbo"
+  "anthropic:claude-sonnet-4-0:claude-3-7-sonnet-latest"
+  "google:gemini-2.5-pro:gemini-2.5-pro:gemini-2.5-flash"
+  "databricks:databricks-claude-sonnet-4:gemini-2-5-flash:gpt-4o"
+)
+
+RESULTS=()
+
+for provider_config in "${PROVIDERS[@]}"; do
+  IFS=':' read -ra PARTS <<< "$provider_config"
+  PROVIDER="${PARTS[0]}"
+  for i in $(seq 1 $((${#PARTS[@]} - 1))); do
+    MODEL="${PARTS[$i]}"
+    export GOOSE_PROVIDER="$PROVIDER"
+    export GOOSE_MODEL="$MODEL"
+    TESTDIR=$(mktemp -d)
+    echo "hello" > "$TESTDIR/hello.txt"
+    echo "Provider: ${PROVIDER}"
+    echo "Model: ${MODEL}"
+    echo ""
+    TMPFILE=$(mktemp)
+    (cd "$TESTDIR" && "$SCRIPT_DIR/target/release/goose" run --text "please list files in the current directory" --with-builtin developer 2>&1) | tee "$TMPFILE"
+    echo ""
+    if grep -q "shell | developer" "$TMPFILE"; then
+      echo "✓ SUCCESS: Test passed - developer tool called"
+      RESULTS+=("✓ ${PROVIDER}/${MODEL}")
+    else
+      echo "✗ FAILED: Test failed - no developer tools called"
+      RESULTS+=("✗ ${PROVIDER}/${MODEL}")
+    fi
+    rm "$TMPFILE"
+    rm -rf "$TESTDIR"
+    echo "---"
+  done
+done
+echo ""
+echo "=== Test Summary ==="
+for result in "${RESULTS[@]}"; do
+  echo "$result"
+done
+if echo "${RESULTS[@]}" | grep -q "✗"; then
+  echo ""
+  echo "Some tests failed!"
+  exit 1
+else
+  echo ""
+  echo "All tests passed!"
+fi