Better selector of freebuff model #6183

Job	Run time
build-and-check	3m 7s
test-integration-packages/billing	1m 3s
test-integration-packages/internal	1m 19s
test-integration-cli	45s
test-integration-packages/agent-runtime	48s
test-integration-sdk	1m 21s
test-integration-web	45s
test-integration-common	51s
test-.agents	41s
test-cli	55s
test-common	43s
test-sdk	47s
test-web	53s
test-packages/billing	39s
test-packages/internal	45s
test-packages/agent-runtime	53s
	16m 15s

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