diff --git a/db/schema.sql b/db/schema.sql
index 20c2aa1ba..a2685c9a9 100644
--- a/db/schema.sql
+++ b/db/schema.sql
@@ -93,3 +93,109 @@ CREATE INDEX IF NOT EXISTS idx_decisions_domain ON decisions(domain);
 CREATE INDEX IF NOT EXISTS idx_decisions_status ON decisions(status);
 CREATE INDEX IF NOT EXISTS idx_decision_refs_source ON decision_refs(source_id);
 CREATE INDEX IF NOT EXISTS idx_decision_refs_target ON decision_refs(target_id);
+
+-- ---------------------------------------------------------------------------
+-- Star Systems Wiki Mirror
+-- Populated by: python3 tooling/db/wiki_sync.py sync
+-- Source: wiki/star-systems/*/index.md (YAML frontmatter)
+-- ---------------------------------------------------------------------------
+
+CREATE TABLE IF NOT EXISTS star_systems (
+    -- I. Identity and Location
+    system_id TEXT PRIMARY KEY,
+    astronomical_id TEXT NOT NULL,
+    proper_name TEXT,
+    system_name TEXT,
+    star_type TEXT,
+    geographic_sector TEXT,
+    geographic_band TEXT,
+    political_zone TEXT,
+
+    -- II. Physical Character
+    habitable_planet_count INTEGER,
+    inhabited_planet_count INTEGER,
+    asteroid_belt TEXT,
+    gas_giant TEXT,
+    habitability_profile TEXT,
+
+    -- III. Gate Infrastructure
+    horizon_station INTEGER,  -- boolean 0/1
+    aperture_count INTEGER,
+    gate_connections INTEGER,
+    gate_topology TEXT,
+    span_gate_network TEXT,
+
+    -- IV. Settlement History
+    settlement_wave TEXT,
+    founding_motivation TEXT,
+    founding_culture_primary TEXT,
+    founding_culture_secondary TEXT,
+    cultural_persistence TEXT,
+    historical_event TEXT,
+    historical_event_age_years INTEGER,
+    religious_status TEXT,
+    religious_generation_count INTEGER,
+
+    -- V. Economic Life
+    economic_tier TEXT,
+    population TEXT,
+    economic_base_primary TEXT,
+    economic_base_secondary TEXT,
+    distribution_index TEXT,
+    imprint_access TEXT,
+    supply_dependency TEXT,
+
+    -- VI. Governance
+    governance_type TEXT,
+    dominant_faction TEXT,
+    primary_fault_line TEXT,
+    secondary_fault_line TEXT,
+
+    -- VII. Faction Presence
+    assembly_presence TEXT,
+    commission_presence TEXT,
+    syndic_presence TEXT,
+    syndic_type TEXT,
+    separatist_presence TEXT,
+    separatist_type TEXT,
+    institute_presence TEXT,
+    guardians_presence TEXT,
+    faction_notes TEXT,
+
+    -- VIII. Cultural Voice
+    cultural_register TEXT,
+    cultural_register_secondary TEXT,
+    ambient_anxiety TEXT,
+    local_pride TEXT,
+    atmospheric_tone TEXT,
+    atmospheric_tone_secondary TEXT,
+    active_situation TEXT,
+    silence_threshold TEXT,
+    silence_topic TEXT,
+
+    -- IX. Political Character
+    earth_alignment TEXT,
+    earth_proximity TEXT,
+    earth_tension TEXT,
+
+    -- X. Narrative Profile
+    primary_archetype TEXT,
+    secondary_archetype TEXT,
+    narrative_notable TEXT,
+    narrative_hook TEXT,
+    generation_priority TEXT,
+
+    -- XI. Content Notes
+    stability_index TEXT,
+    system_volatility TEXT,
+    cultural_corridor TEXT,
+    calibration_note TEXT,
+
+    synced_at TEXT DEFAULT (datetime('now'))
+);
+
+CREATE INDEX IF NOT EXISTS idx_star_systems_astro ON star_systems(astronomical_id);
+CREATE INDEX IF NOT EXISTS idx_star_systems_sector ON star_systems(geographic_sector);
+CREATE INDEX IF NOT EXISTS idx_star_systems_wave ON star_systems(settlement_wave);
+CREATE INDEX IF NOT EXISTS idx_star_systems_topology ON star_systems(gate_topology);
+CREATE INDEX IF NOT EXISTS idx_star_systems_star_type ON star_systems(star_type);