diff --git a/packages/codegen_studio/seed/scripts/db/operations.lua b/packages/codegen_studio/seed/scripts/db/operations.lua
new file mode 100644
index 000000000..b2f88df7b
--- /dev/null
+++ b/packages/codegen_studio/seed/scripts/db/operations.lua
@@ -0,0 +1,367 @@
+-- codegen_studio/seed/scripts/db/operations.lua
+-- DBAL operations for Codegen entities (Project, Blueprint, Template)
+-- @module codegen_studio.db.operations
+
+local M = {}
+local json = require('json')
+
+---------------------------------------------------------------------------
+-- PROJECT OPERATIONS
+---------------------------------------------------------------------------
+
+---@class CodegenProjectCreateParams
+---@field tenantId string
+---@field name string
+---@field description string|nil
+---@field framework string react|vue|svelte|angular|etc
+---@field settings table|nil
+---@field createdBy string
+
+---Create a new codegen project
+---@param dbal table DBAL client instance
+---@param params CodegenProjectCreateParams
+---@return table Created project
+function M.createProject(dbal, params)
+  return dbal:create('CodegenProject', {
+    tenantId = params.tenantId,
+    name = params.name,
+    description = params.description,
+    framework = params.framework,
+    settings = params.settings and json.encode(params.settings) or '{}',
+    status = 'active',
+    createdBy = params.createdBy,
+    createdAt = os.time() * 1000,
+    updatedAt = os.time() * 1000,
+  })
+end
+
+---Get project by ID
+---@param dbal table
+---@param projectId string
+---@return table|nil Project
+function M.getProject(dbal, projectId)
+  local project = dbal:read('CodegenProject', projectId)
+  if project and project.settings then
+    project.settings = json.decode(project.settings)
+  end
+  return project
+end
+
+---List projects
+---@param dbal table
+---@param tenantId string
+---@param framework string|nil Filter by framework
+---@param take number|nil
+---@param skip number|nil
+---@return table List result
+function M.listProjects(dbal, tenantId, framework, take, skip)
+  local where = { tenantId = tenantId, status = 'active' }
+  
+  if framework then
+    where.framework = framework
+  end
+  
+  return dbal:list('CodegenProject', {
+    where = where,
+    orderBy = { updatedAt = 'desc' },
+    take = take or 20,
+    skip = skip or 0,
+  })
+end
+
+---Update project
+---@param dbal table
+---@param projectId string
+---@param updates table
+---@return table Updated project
+function M.updateProject(dbal, projectId, updates)
+  if updates.settings and type(updates.settings) == 'table' then
+    updates.settings = json.encode(updates.settings)
+  end
+  updates.updatedAt = os.time() * 1000
+  return dbal:update('CodegenProject', projectId, updates)
+end
+
+---Archive project
+---@param dbal table
+---@param projectId string
+function M.archiveProject(dbal, projectId)
+  return M.updateProject(dbal, projectId, { status = 'archived' })
+end
+
+---Delete project
+---@param dbal table
+---@param projectId string
+---@return boolean Success
+function M.deleteProject(dbal, projectId)
+  return dbal:delete('CodegenProject', projectId)
+end
+
+---------------------------------------------------------------------------
+-- BLUEPRINT OPERATIONS
+---------------------------------------------------------------------------
+
+---@class CodegenBlueprintCreateParams
+---@field tenantId string
+---@field projectId string
+---@field name string
+---@field type string component|page|api|model|etc
+---@field spec table Blueprint specification
+---@field createdBy string
+
+---Create a new blueprint
+---@param dbal table
+---@param params CodegenBlueprintCreateParams
+---@return table Created blueprint
+function M.createBlueprint(dbal, params)
+  return dbal:create('CodegenBlueprint', {
+    tenantId = params.tenantId,
+    projectId = params.projectId,
+    name = params.name,
+    type = params.type,
+    spec = json.encode(params.spec or {}),
+    version = 1,
+    status = 'draft',
+    createdBy = params.createdBy,
+    createdAt = os.time() * 1000,
+    updatedAt = os.time() * 1000,
+  })
+end
+
+---Get blueprint by ID
+---@param dbal table
+---@param blueprintId string
+---@return table|nil Blueprint
+function M.getBlueprint(dbal, blueprintId)
+  local blueprint = dbal:read('CodegenBlueprint', blueprintId)
+  if blueprint and blueprint.spec then
+    blueprint.spec = json.decode(blueprint.spec)
+  end
+  return blueprint
+end
+
+---List blueprints for a project
+---@param dbal table
+---@param projectId string
+---@param type string|nil Filter by type
+---@param take number|nil
+---@return table List result
+function M.listBlueprints(dbal, projectId, type, take)
+  local where = { projectId = projectId }
+  
+  if type then
+    where.type = type
+  end
+  
+  return dbal:list('CodegenBlueprint', {
+    where = where,
+    orderBy = { name = 'asc' },
+    take = take or 50,
+  })
+end
+
+---Update blueprint spec
+---@param dbal table
+---@param blueprintId string
+---@param spec table
+---@return table Updated blueprint
+function M.updateBlueprintSpec(dbal, blueprintId, spec)
+  local blueprint = M.getBlueprint(dbal, blueprintId)
+  if not blueprint then
+    error('Blueprint not found: ' .. blueprintId)
+  end
+  
+  return dbal:update('CodegenBlueprint', blueprintId, {
+    spec = json.encode(spec),
+    version = (blueprint.version or 0) + 1,
+    updatedAt = os.time() * 1000,
+  })
+end
+
+---Publish blueprint
+---@param dbal table
+---@param blueprintId string
+function M.publishBlueprint(dbal, blueprintId)
+  return dbal:update('CodegenBlueprint', blueprintId, {
+    status = 'published',
+    publishedAt = os.time() * 1000,
+    updatedAt = os.time() * 1000,
+  })
+end
+
+---Delete blueprint
+---@param dbal table
+---@param blueprintId string
+---@return boolean Success
+function M.deleteBlueprint(dbal, blueprintId)
+  return dbal:delete('CodegenBlueprint', blueprintId)
+end
+
+---------------------------------------------------------------------------
+-- TEMPLATE OPERATIONS
+---------------------------------------------------------------------------
+
+---@class CodegenTemplateCreateParams
+---@field tenantId string
+---@field name string
+---@field type string component|page|api|model|hook|etc
+---@field framework string
+---@field content string Template content with placeholders
+---@field variables table[] Variable definitions
+---@field isPublic boolean|nil
+
+---Create a new template
+---@param dbal table
+---@param params CodegenTemplateCreateParams
+---@return table Created template
+function M.createTemplate(dbal, params)
+  return dbal:create('CodegenTemplate', {
+    tenantId = params.tenantId,
+    name = params.name,
+    type = params.type,
+    framework = params.framework,
+    content = params.content,
+    variables = json.encode(params.variables or {}),
+    isPublic = params.isPublic or false,
+    usageCount = 0,
+    createdAt = os.time() * 1000,
+    updatedAt = os.time() * 1000,
+  })
+end
+
+---Get template by ID
+---@param dbal table
+---@param templateId string
+---@return table|nil Template
+function M.getTemplate(dbal, templateId)
+  local template = dbal:read('CodegenTemplate', templateId)
+  if template and template.variables then
+    template.variables = json.decode(template.variables)
+  end
+  return template
+end
+
+---List templates
+---@param dbal table
+---@param tenantId string
+---@param framework string|nil
+---@param type string|nil
+---@param take number|nil
+---@return table[] Templates
+function M.listTemplates(dbal, tenantId, framework, type, take)
+  -- Get tenant templates
+  local where = { tenantId = tenantId }
+  
+  local result = dbal:list('CodegenTemplate', {
+    where = where,
+    orderBy = { usageCount = 'desc' },
+    take = take or 50,
+  })
+  
+  local templates = result.items or {}
+  
+  -- Filter by framework and type
+  if framework or type then
+    local filtered = {}
+    for _, t in ipairs(templates) do
+      local matchFramework = not framework or t.framework == framework
+      local matchType = not type or t.type == type
+      if matchFramework and matchType then
+        table.insert(filtered, t)
+      end
+    end
+    templates = filtered
+  end
+  
+  -- Parse variables
+  for _, t in ipairs(templates) do
+    if t.variables and type(t.variables) == 'string' then
+      t.variables = json.decode(t.variables)
+    end
+  end
+  
+  return templates
+end
+
+---Update template
+---@param dbal table
+---@param templateId string
+---@param updates table
+---@return table Updated template
+function M.updateTemplate(dbal, templateId, updates)
+  if updates.variables and type(updates.variables) == 'table' then
+    updates.variables = json.encode(updates.variables)
+  end
+  updates.updatedAt = os.time() * 1000
+  return dbal:update('CodegenTemplate', templateId, updates)
+end
+
+---Increment template usage
+---@param dbal table
+---@param templateId string
+function M.incrementUsage(dbal, templateId)
+  local template = M.getTemplate(dbal, templateId)
+  if template then
+    dbal:update('CodegenTemplate', templateId, {
+      usageCount = (template.usageCount or 0) + 1,
+    })
+  end
+end
+
+---Delete template
+---@param dbal table
+---@param templateId string
+---@return boolean Success
+function M.deleteTemplate(dbal, templateId)
+  return dbal:delete('CodegenTemplate', templateId)
+end
+
+---------------------------------------------------------------------------
+-- GENERATION OPERATIONS
+---------------------------------------------------------------------------
+
+---Generate code from template
+---@param dbal table
+---@param templateId string
+---@param variables table Variable values
+---@return string Generated code
+function M.generateFromTemplate(dbal, templateId, variables)
+  local template = M.getTemplate(dbal, templateId)
+  if not template then
+    error('Template not found: ' .. templateId)
+  end
+  
+  M.incrementUsage(dbal, templateId)
+  
+  local code = template.content
+  
+  -- Replace variables
+  for key, value in pairs(variables) do
+    code = code:gsub('{{' .. key .. '}}', tostring(value))
+    code = code:gsub('{%% ' .. key .. ' %%}', tostring(value))
+  end
+  
+  return code
+end
+
+---Log a generation event
+---@param dbal table
+---@param tenantId string
+---@param projectId string
+---@param templateId string|nil
+---@param blueprintId string|nil
+---@param output table Generated files
+---@param userId string
+function M.logGeneration(dbal, tenantId, projectId, templateId, blueprintId, output, userId)
+  return dbal:create('CodegenHistory', {
+    tenantId = tenantId,
+    projectId = projectId,
+    templateId = templateId,
+    blueprintId = blueprintId,
+    output = json.encode(output),
+    generatedBy = userId,
+    generatedAt = os.time() * 1000,
+  })
+end
+
+return M