thanks clason :)

doc/telescope.txt

@@ -49,9 +49,9 @@ telescope.setup({opts}) *telescope.setup()*
 
  *telescope.defaults.history*
  history: ~
- This field handles the configuration for prompt history. It can either
- be a table or false.
- If its false then history is disabled.
+ This field handles the configuration for prompt history.
+ By default it is a table, with default values (more below).
+ To disable history, set it to either false or nil.
 
  Currently mappings still need to be added, Example:
  mappings = {
@@ -62,23 +62,21 @@ telescope.setup({opts}) *telescope.setup()*
  },
 
  Fields:
- - path: the path to the telescope history as string
+ - path: The path to the telescope history as string.
  default: stdpath("data")/telescope_history
- - limit: the amount of entries that will be written in the history
- if limit is set to nil it will grown unbound
+ - limit: The amount of entries that will be written in the
+ history.
+ Warning: If limit is set to nil it will grown unbound.
  default: 100
- - handler: is a developer setting that is meant for extensions.
- You can replace the actual implementation of the history
- and provide your own. One example of this is
- nvim-telescope/telescope-smart-history.nvim which allows
- context sensitive (cwd + picker) history.
+ - handler: A lua function that implements the history.
+ This is meant as a developer setting for extensions to
+ override the history handling, e.g.,
+ https://github.com/nvim-telescope/telescope-smart-history.nvim,
+ which allows context sensitive (cwd + picker) history.
 
  Default:
  require('telescope.actions.history').get_simple_history
 
- Is a simple history implementation that is not context
- sensitive, it writes all history in one text file.
-
 
  *telescope.defaults.layout_config*
  layout_config: ~

lua/telescope/actions/history.lua

@@ -59,7 +59,7 @@ histories.History.__index = histories.History
 ---@field pre_get function: Will be called before a next or previous item will be returned (optional)
 function histories.History:new(opts)
  local obj = {}
- if conf.history == false or type(conf.history) ~= "table" then
+ if not conf.history or type(conf.history) ~= "table" then
  obj.enabled = false
  return setmetatable(obj, self)
  end

lua/telescope/actions/state.lua

@@ -40,7 +40,7 @@ end
 function action_state.get_current_history()
  local history = global_state.get_global_key("history")
  if not history then
- if conf.history == false or type(conf.history) ~= "table" then
+ if not conf.history or type(conf.history) ~= "table" then
  history = require('telescope.actions.history').get_simple_history()
  global_state.set_global_key("history", history)
  else

lua/telescope/config.lua

@@ -220,9 +220,9 @@ local telescope_defaults = {
  limit = 100,
  handler = function(...) return require('telescope.actions.history').get_simple_history(...) end,
  }, [[
- This field handles the configuration for prompt history. It can either
- be a table or false.
- If its false then history is disabled.
+ This field handles the configuration for prompt history.
+ By default it is a table, with default values (more below).
+ To disable history, set it to either false or nil.
 
  Currently mappings still need to be added, Example:
  mappings = {
@@ -233,22 +233,20 @@ local telescope_defaults = {
  },
 
  Fields:
- - path: the path to the telescope history as string
+ - path: The path to the telescope history as string.
  default: stdpath("data")/telescope_history
- - limit: the amount of entries that will be written in the history
- if limit is set to nil it will grown unbound
+ - limit: The amount of entries that will be written in the
+ history.
+ Warning: If limit is set to nil it will grown unbound.
  default: 100
- - handler: is a developer setting that is meant for extensions.
- You can replace the actual implementation of the history
- and provide your own. One example of this is
- nvim-telescope/telescope-smart-history.nvim which allows
- context sensitive (cwd + picker) history.
+ - handler: A lua function that implements the history.
+ This is meant as a developer setting for extensions to
+ override the history handling, e.g.,
+ https://github.com/nvim-telescope/telescope-smart-history.nvim,
+ which allows context sensitive (cwd + picker) history.
 
  Default:
  require('telescope.actions.history').get_simple_history
-
- Is a simple history implementation that is not context
- sensitive, it writes all history in one text file.
  ]],
 
  },
@@ -383,7 +381,7 @@ function config.set_defaults(user_defaults, tele_defaults)
  )
  end
  if name == "history" then
- if user_defaults[name] == false or config.values[name] == false then
+ if not user_defaults[name] or not config.values[name] then
  return false
  end