Yes: the address holds the whole build (ethics, authority, origin, civics, species class, traits); Copy link copies it.

Stellaris 4.5.2 empire builder

Pick ethics (3 points), an authority, an origin, 2 civics, a species class and its traits: every pick is checked against the rules in the game files — 234 civics, 62 origins and 186 traits. Rules the builder cannot evaluate (ship appearance, homeworld class) are listed as not checked, never passed.

Start from

1Ethics

0 of 3 points

2Authority

3Origin

61 open

4Civics

0 of 2 · 227 open

5Species

pick a class

Nomadic empire (the rules' is_nomadic)

6Traits

pick a species class first

How the builder checks

Every rule comes from the files; the order of checks and the wording are ours.

Ethics: exactly 3 points (MIN_ETHIC_POINTS), one ethic per axis; Gestalt Consciousness takes all 3.
Authority, civics and origin: their potential (whether the game lists them at all) and possible (whether they can be picked) in the game's list syntax — ethics, authority, civics, origin, species class and archetype, country type, nomadic or not.
Civics: 2 slots at the start (GOVERNMENT_CIVIC_POINTS_BASE); a civic another one forbids fails both.
Species: the class's own rules (some classes are closed to machine authorities), trait points and picks from the class or its archetype (common/species_archetypes), plus what the origin and civics add (Overtuned, Natural Design, Mechanists: `<archetype>_species_trait_points_add`); traits with cost 0 do not use a pick.
Traits: archetype, species class, origins, civics and ethics each trait allows or forbids, opposites both ways (also against traits the origin or a civic gives), offered at creation (initial). A trait with its own portraits (portrait_override) is valid for those portraits whatever the class: not checked, as the builder picks no portrait.
Not checked: ship appearance (graphical_culture), homeworld planet class (preferred_planet_class), whether a trait the origin gives by itself costs points (shown when it decides the verdict), DLC you own (the builder reads the rules with every DLC).
Start from: 45 of the game's premade empires (prescripted_countries). A premade empire is listed when its playable trigger can be true for a player who owns every DLC: empire_design_never (always = no) and the stand-ins the game shows only without a DLC are left out. Left out: United Nations of Earth, Commonwealth of Man, Yorphian Extractorate, Tebrid Homolog, Earth Custodianship, XT-489 Eliminator, Iferyx Amalgamated Fleets.

Empire builder: questions

Which civics can't be combined in Stellaris?

A civic whose rules forbid another can't be taken with it; every civic page lists its clashes, and the builder marks a clashing pick with the reason.

How many civics and ethic points does an empire get?

3 ethic points and 2 civic slots at the start in Stellaris 4.5.2 (common/defines).

Source: common/ethics, common/governments, common/species_classes, common/species_archetypes, common/traits and common/defines, Stellaris Cygnus v4.5.2 (9776).