diff --git a/scripts/create_prompt_config.sql b/scripts/create_prompt_config.sql
index ba30d5a..1b89130 100644
--- a/scripts/create_prompt_config.sql
+++ b/scripts/create_prompt_config.sql
@@ -29,3 +29,62 @@ CREATE TABLE IF NOT EXISTS prompt_templates (
 
 CREATE INDEX IF NOT EXISTS idx_prompt_templates_set_id
     ON prompt_templates(prompt_set_id);
+
+-- Seed: initial prompt set for lang_agent/graphs/routing.py
+-- The pipeline_id can be used by RoutingConfig.pipeline_id to load these prompts.
+INSERT INTO prompt_sets (pipeline_id, name, description, is_active, list)
+SELECT
+    'routing',
+    'default',
+    'Initial prompt set for RoutingGraph nodes',
+    true,
+    ''
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM prompt_sets
+    WHERE pipeline_id = 'routing'
+      AND name = 'default'
+);
+
+INSERT INTO prompt_templates (prompt_set_id, prompt_key, content)
+SELECT ps.id, t.prompt_key, t.content
+FROM prompt_sets ps
+JOIN (
+    VALUES
+        ('route_prompt', '决定用工具或者聊天'),
+        ('chat_prompt', '正常聊天时说什么'),
+        ('tool_prompt', '如何用工具')
+) AS t(prompt_key, content)
+    ON true
+WHERE ps.pipeline_id = 'routing'
+  AND ps.name = 'default'
+ON CONFLICT (prompt_set_id, prompt_key)
+DO UPDATE SET
+    content = EXCLUDED.content,
+    updated_at = now();
+
+-- Seed: initial prompt set for lang_agent/graphs/react.py
+-- ReactGraph uses prompt key "sys_prompt" (see default_key in build_prompt_store).
+INSERT INTO prompt_sets (pipeline_id, name, description, is_active, list)
+SELECT
+    'react',
+    'default',
+    'Initial prompt set for ReactGraph',
+    true,
+    ''
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM prompt_sets
+    WHERE pipeline_id = 'react'
+      AND name = 'default'
+);
+
+INSERT INTO prompt_templates (prompt_set_id, prompt_key, content)
+SELECT ps.id, 'sys_prompt', '如何用工具'
+FROM prompt_sets ps
+WHERE ps.pipeline_id = 'react'
+  AND ps.name = 'default'
+ON CONFLICT (prompt_set_id, prompt_key)
+DO UPDATE SET
+    content = EXCLUDED.content,
+    updated_at = now();