diff --git a/.github/workflows/lua.yaml b/.github/workflows/lua.yaml
index a1f97b2..50d2815 100644
--- a/.github/workflows/lua.yaml
+++ b/.github/workflows/lua.yaml
@@ -38,6 +38,9 @@ jobs:
             mkdir -p _neovim
             curl -sL "https://github.com/neovim/neovim/releases/download/${{ matrix.rev }}" | tar xzf - --strip-components=1 -C "${PWD}/_neovim"
           }
+          sudo apt-get update
+          sudo apt-get install -y ripgrep
+          sudo apt-get install -y silversearcher-ag
 
       - name: Run tests
         run: |
diff --git a/crates/avante-templates/src/lib.rs b/crates/avante-templates/src/lib.rs
index 144666c..ece86c4 100644
--- a/crates/avante-templates/src/lib.rs
+++ b/crates/avante-templates/src/lib.rs
@@ -31,6 +31,7 @@ struct TemplateContext {
     selected_code: Option<String>,
     project_context: Option<String>,
     diagnostics: Option<String>,
+    system_info: Option<String>,
 }
 
 // Given the file name registered after add, the context table in Lua, resulted in a formatted
@@ -54,6 +55,7 @@ fn render(state: &State, template: &str, context: TemplateContext) -> LuaResult<
                   selected_code => context.selected_code,
                   project_context => context.project_context,
                   diagnostics => context.diagnostics,
+                  system_info => context.system_info,
                 })
                 .map_err(LuaError::external)
                 .unwrap())
diff --git a/lua/avante/config.lua b/lua/avante/config.lua
index 90f5bd9..f959286 100644
--- a/lua/avante/config.lua
+++ b/lua/avante/config.lua
@@ -20,6 +20,14 @@ M._defaults = {
   -- For most providers that we support we will determine this automatically.
   -- If you wish to use a given implementation, then you can override it here.
   tokenizer = "tiktoken",
+  web_search_engine = {
+    provider = "tavily",
+    api_key_name = "TAVILY_API_KEY",
+    provider_opts = {
+      time_range = "d",
+      include_answer = "basic",
+    },
+  },
   ---@type AvanteSupportedProvider
   openai = {
     endpoint = "https://api.openai.com/v1",
diff --git a/lua/avante/llm.lua b/lua/avante/llm.lua
index cd5d1bc..9a843cf 100644
--- a/lua/avante/llm.lua
+++ b/lua/avante/llm.lua
@@ -8,6 +8,7 @@ local Utils = require("avante.utils")
 local Config = require("avante.config")
 local Path = require("avante.path")
 local P = require("avante.providers")
+local LLMTools = require("avante.llm_tools")
 
 ---@class avante.LLM
 local M = {}
@@ -45,6 +46,8 @@ M.generate_prompts = function(opts)
   local project_root = Utils.root.get()
   Path.prompts.initialize(Path.prompts.get(project_root))
 
+  local system_info = Utils.get_system_info()
+
   local template_opts = {
     use_xml_format = Provider.use_xml_format,
     ask = opts.ask, -- TODO: add mode without ask instruction
@@ -53,6 +56,7 @@ M.generate_prompts = function(opts)
     selected_code = opts.selected_code,
     project_context = opts.project_context,
     diagnostics = opts.diagnostics,
+    system_info = system_info,
   }
 
   local system_prompt = Path.prompts.render_mode(mode, template_opts)
@@ -111,6 +115,10 @@ M.generate_prompts = function(opts)
     system_prompt = system_prompt,
     messages = messages,
     image_paths = image_paths,
+    tools = opts.tools,
+    tool_use = opts.tool_use,
+    tool_result = opts.tool_result,
+    response_content = opts.response_content,
   }
 end
 
@@ -135,7 +143,28 @@ M._stream = function(opts)
   local current_event_state = nil
 
   ---@type AvanteHandlerOptions
-  local handler_opts = { on_chunk = opts.on_chunk, on_complete = opts.on_complete }
+  local handler_opts = {
+    on_start = opts.on_start,
+    on_chunk = opts.on_chunk,
+    on_stop = function(stop_opts)
+      if stop_opts.reason == "tool_use" and stop_opts.tool_use then
+        local result, error = LLMTools.process_tool_use(stop_opts.tool_use)
+        local tool_result = {
+          tool_use_id = stop_opts.tool_use.id,
+          content = error ~= nil and error or result,
+          is_error = error ~= nil,
+        }
+        local new_opts = vim.tbl_deep_extend(
+          "force",
+          opts,
+          { tool_result = tool_result, tool_use = stop_opts.tool_use, response_content = stop_opts.response_content }
+        )
+        return M._stream(new_opts)
+      end
+      return opts.on_stop(stop_opts)
+    end,
+  }
+
   ---@type AvanteCurlOutput
   local spec = Provider.parse_curl_args(Provider, code_opts)
 
@@ -180,7 +209,7 @@ M._stream = function(opts)
     stream = function(err, data, _)
       if err then
         completed = true
-        opts.on_complete(err)
+        handler_opts.on_stop({ reason = "error", error = err })
         return
       end
       if not data then return end
@@ -224,7 +253,7 @@ M._stream = function(opts)
       active_job = nil
       completed = true
       cleanup()
-      opts.on_complete(err)
+      handler_opts.on_stop({ reason = "error", error = err })
     end,
     callback = function(result)
       active_job = nil
@@ -238,9 +267,10 @@ M._stream = function(opts)
         vim.schedule(function()
           if not completed then
             completed = true
-            opts.on_complete(
-              "API request failed with status " .. result.status .. ". Body: " .. vim.inspect(result.body)
-            )
+            handler_opts.on_stop({
+              reason = "error",
+              error = "API request failed with status " .. result.status .. ". Body: " .. vim.inspect(result.body),
+            })
           end
         end)
       end
@@ -335,9 +365,9 @@ M._dual_boost_stream = function(opts, Provider1, Provider2)
       on_chunk = function(chunk)
         if chunk then response = response .. chunk end
       end,
-      on_complete = function(err)
-        if err then
-          Utils.error(string.format("Stream %d failed: %s", index, err))
+      on_stop = function(stop_opts)
+        if stop_opts.error then
+          Utils.error(string.format("Stream %d failed: %s", index, stop_opts.error))
           return
         end
         Utils.debug(string.format("Response %d completed", index))
@@ -381,10 +411,15 @@ end
 ---@field instructions string
 ---@field mode LlmMode
 ---@field provider AvanteProviderFunctor | AvanteBedrockProviderFunctor | nil
+---@field tools? AvanteLLMTool[]
+---@field tool_result? AvanteLLMToolResult
+---@field tool_use? AvanteLLMToolUse
+---@field response_content? string
 ---
 ---@class StreamOptions: GeneratePromptsOptions
----@field on_chunk AvanteChunkParser
----@field on_complete AvanteCompleteParser
+---@field on_start AvanteLLMStartCallback
+---@field on_chunk AvanteLLMChunkCallback
+---@field on_stop AvanteLLMStopCallback
 
 ---@param opts StreamOptions
 M.stream = function(opts)
@@ -396,12 +431,12 @@ M.stream = function(opts)
       return original_on_chunk(chunk)
     end)
   end
-  if opts.on_complete ~= nil then
-    local original_on_complete = opts.on_complete
-    opts.on_complete = vim.schedule_wrap(function(err)
+  if opts.on_stop ~= nil then
+    local original_on_stop = opts.on_stop
+    opts.on_stop = vim.schedule_wrap(function(stop_opts)
       if is_completed then return end
-      is_completed = true
-      return original_on_complete(err)
+      if stop_opts.reason == "complete" or stop_opts.reason == "error" then is_completed = true end
+      return original_on_stop(stop_opts)
     end)
   end
   if Config.dual_boost.enabled then
diff --git a/lua/avante/llm_tools.lua b/lua/avante/llm_tools.lua
new file mode 100644
index 0000000..a5f795a
--- /dev/null
+++ b/lua/avante/llm_tools.lua
@@ -0,0 +1,714 @@
+local curl = require("plenary.curl")
+local Utils = require("avante.utils")
+local Path = require("plenary.path")
+local Config = require("avante.config")
+local M = {}
+
+---@param rel_path string
+---@return string
+local function get_abs_path(rel_path)
+  local project_root = Utils.get_project_root()
+  return Path:new(project_root):joinpath(rel_path):absolute()
+end
+
+function M.comfirm(msg)
+  local ok = vim.fn.confirm(msg, "&Yes\n&No", 2)
+  return ok == 1
+end
+
+---@param abs_path string
+---@return boolean
+local function has_permission_to_access(abs_path)
+  if not Path:new(abs_path):is_absolute() then return false end
+  local project_root = Utils.get_project_root()
+  if abs_path:sub(1, #project_root) ~= project_root then return false end
+  local gitignore_path = project_root .. "/.gitignore"
+  local gitignore_patterns, gitignore_negate_patterns = Utils.parse_gitignore(gitignore_path)
+  return not Utils.is_ignored(abs_path, gitignore_patterns, gitignore_negate_patterns)
+end
+
+---@param opts { rel_path: string, depth?: integer }
+---@return string files
+---@return string|nil error
+function M.list_files(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return "", "No permission to access path: " .. abs_path end
+  local files = Utils.scan_directory_respect_gitignore({
+    directory = abs_path,
+    add_dirs = true,
+    depth = opts.depth,
+  })
+  local result = ""
+  for _, file in ipairs(files) do
+    local uniform_path = Utils.uniform_path(file)
+    result = result .. uniform_path .. "\n"
+  end
+  result = result:gsub("\n$", "")
+  return result, nil
+end
+
+---@param opts { rel_path: string, keyword: string }
+---@return string files
+---@return string|nil error
+function M.search_files(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return "", "No permission to access path: " .. abs_path end
+  local files = Utils.scan_directory_respect_gitignore({
+    directory = abs_path,
+  })
+  local result = ""
+  for _, file in ipairs(files) do
+    if file:find(opts.keyword) then result = result .. file .. "\n" end
+  end
+  result = result:gsub("\n$", "")
+  return result, nil
+end
+
+---@param opts { rel_path: string, keyword: string }
+---@return string result
+---@return string|nil error
+function M.search(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return "", "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return "", "No such file or directory: " .. abs_path end
+
+  ---check if any search cmd is available
+  local search_cmd = vim.fn.exepath("rg")
+  if search_cmd == "" then search_cmd = vim.fn.exepath("ag") end
+  if search_cmd == "" then search_cmd = vim.fn.exepath("ack") end
+  if search_cmd == "" then search_cmd = vim.fn.exepath("grep") end
+  if search_cmd == "" then return "", "No search command found" end
+
+  ---execute the search command
+  local cmd = ""
+  if search_cmd:find("rg") then
+    cmd = string.format("%s --files-with-matches --no-ignore-vcs --ignore-case --hidden --glob '!.git'", search_cmd)
+    cmd = string.format("%s '%s' %s", cmd, opts.keyword, abs_path)
+  elseif search_cmd:find("ag") then
+    cmd = string.format("%s '%s' --nocolor --nogroup --hidden --ignore .git %s", search_cmd, opts.keyword, abs_path)
+  elseif search_cmd:find("ack") then
+    cmd = string.format("%s --nocolor --nogroup --hidden --ignore-dir .git", search_cmd)
+    cmd = string.format("%s '%s' %s", cmd, opts.keyword, abs_path)
+  elseif search_cmd:find("grep") then
+    cmd = string.format("%s -riH --exclude-dir=.git %s %s", search_cmd, opts.keyword, abs_path)
+  end
+
+  Utils.debug("cmd", cmd)
+  local result = vim.fn.system(cmd)
+
+  return result or "", nil
+end
+
+---@param opts { rel_path: string }
+---@return string definitions
+---@return string|nil error
+function M.read_file_toplevel_symbols(opts)
+  local RepoMap = require("avante.repo_map")
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return "", "No permission to access path: " .. abs_path end
+  local filetype = RepoMap.get_ts_lang(abs_path)
+  local repo_map_lib = RepoMap._init_repo_map_lib()
+  if not repo_map_lib then return "", "Failed to load avante_repo_map" end
+  local definitions = filetype
+      and repo_map_lib.stringify_definitions(filetype, Utils.file.read_content(abs_path) or "")
+    or ""
+  return definitions, nil
+end
+
+---@param opts { rel_path: string }
+---@return string content
+---@return string|nil error
+function M.read_file(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return "", "No permission to access path: " .. abs_path end
+  local file = io.open(abs_path, "r")
+  if not file then return "", "file not found: " .. abs_path end
+  local content = file:read("*a")
+  file:close()
+  return content, nil
+end
+
+---@param opts { rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.create_file(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  ---create directory if it doesn't exist
+  local dir = Path:new(abs_path):parent()
+  if not dir:exists() then dir:mkdir({ parents = true }) end
+  ---create file if it doesn't exist
+  if not dir:joinpath(opts.rel_path):exists() then
+    local file = io.open(abs_path, "w")
+    if not file then return false, "file not found: " .. abs_path end
+    file:close()
+  end
+
+  return true, nil
+end
+
+---@param opts { rel_path: string, new_rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.rename_file(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return false, "File not found: " .. abs_path end
+  if not Path:new(abs_path):is_file() then return false, "Path is not a file: " .. abs_path end
+  local new_abs_path = get_abs_path(opts.new_rel_path)
+  if not has_permission_to_access(new_abs_path) then return false, "No permission to access path: " .. new_abs_path end
+  if Path:new(new_abs_path):exists() then return false, "File already exists: " .. new_abs_path end
+  if not M.confirm("Are you sure you want to rename the file: " .. abs_path .. " to: " .. new_abs_path) then
+    return false, "User canceled"
+  end
+  os.rename(abs_path, new_abs_path)
+  return true, nil
+end
+
+---@param opts { rel_path: string, new_rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.copy_file(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return false, "File not found: " .. abs_path end
+  if not Path:new(abs_path):is_file() then return false, "Path is not a file: " .. abs_path end
+  local new_abs_path = get_abs_path(opts.new_rel_path)
+  if not has_permission_to_access(new_abs_path) then return false, "No permission to access path: " .. new_abs_path end
+  if Path:new(new_abs_path):exists() then return false, "File already exists: " .. new_abs_path end
+  Path:new(new_abs_path):write(Path:new(abs_path):read())
+  return true, nil
+end
+
+---@param opts { rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.delete_file(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return false, "File not found: " .. abs_path end
+  if not Path:new(abs_path):is_file() then return false, "Path is not a file: " .. abs_path end
+  if not M.confirm("Are you sure you want to delete the file: " .. abs_path) then return false, "User canceled" end
+  os.remove(abs_path)
+  return true, nil
+end
+
+---@param opts { rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.create_dir(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if Path:new(abs_path):exists() then return false, "Directory already exists: " .. abs_path end
+  Path:new(abs_path):mkdir({ parents = true })
+  return true, nil
+end
+
+---@param opts { rel_path: string, new_rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.rename_dir(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return false, "Directory not found: " .. abs_path end
+  if not Path:new(abs_path):is_dir() then return false, "Path is not a directory: " .. abs_path end
+  local new_abs_path = get_abs_path(opts.new_rel_path)
+  if not has_permission_to_access(new_abs_path) then return false, "No permission to access path: " .. new_abs_path end
+  if Path:new(new_abs_path):exists() then return false, "Directory already exists: " .. new_abs_path end
+  if not M.confirm("Are you sure you want to rename directory " .. abs_path .. " to " .. new_abs_path .. "?") then
+    return false, "User canceled"
+  end
+  os.rename(abs_path, new_abs_path)
+  return true, nil
+end
+
+---@param opts { rel_path: string }
+---@return boolean success
+---@return string|nil error
+function M.delete_dir(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return false, "Directory not found: " .. abs_path end
+  if not Path:new(abs_path):is_dir() then return false, "Path is not a directory: " .. abs_path end
+  if not M.confirm("Are you sure you want to delete the directory: " .. abs_path) then
+    return false, "User canceled"
+  end
+  os.remove(abs_path)
+  return true, nil
+end
+
+---@param opts { rel_path: string, command: string }
+---@return string|boolean result
+---@return string|nil error
+function M.run_command(opts)
+  local abs_path = get_abs_path(opts.rel_path)
+  if not has_permission_to_access(abs_path) then return false, "No permission to access path: " .. abs_path end
+  if not Path:new(abs_path):exists() then return false, "Path not found: " .. abs_path end
+  if
+    not M.confirm("Are you sure you want to run the command: `" .. opts.command .. "` in the directory: " .. abs_path)
+  then
+    return false, "User canceled"
+  end
+  ---change cwd to abs_path
+  local old_cwd = vim.fn.getcwd()
+  vim.fn.chdir(abs_path)
+  local res = Utils.shell_run(opts.command)
+  vim.fn.chdir(old_cwd)
+  if res.code ~= 0 then
+    if res.stdout then return false, "Error: " .. res.stdout .. "; Error code: " .. tostring(res.code) end
+    return false, "Error code: " .. tostring(res.code)
+  end
+  return res.stdout, nil
+end
+
+---@param opts { query: string }
+---@return string|nil result
+---@return string|nil error
+function M.web_search(opts)
+  local search_engine = Config.web_search_engine
+  if search_engine.provider == "tavily" then
+    if search_engine.api_key_name == "" then return nil, "No API key provided" end
+    local api_key = os.getenv(search_engine.api_key_name)
+    if api_key == nil or api_key == "" then
+      return nil, "Environment variable " .. search_engine.api_key_name .. " is not set"
+    end
+    local resp = curl.post("https://api.tavily.com/search", {
+      headers = {
+        ["Content-Type"] = "application/json",
+        ["Authorization"] = "Bearer " .. api_key,
+      },
+      body = vim.json.encode(vim.tbl_deep_extend("force", {
+        query = opts.query,
+      }, search_engine.provider_opts)),
+    })
+    if resp.status ~= 200 then return nil, "Error: " .. resp.body end
+    local jsn = vim.json.decode(resp.body)
+    return jsn.anwser, nil
+  end
+end
+
+---@class AvanteLLMTool
+---@field name string
+---@field description string
+---@field param AvanteLLMToolParam
+---@field returns AvanteLLMToolReturn[]
+
+---@class AvanteLLMToolParam
+---@field type string
+---@field fields AvanteLLMToolParamField[]
+
+---@class AvanteLLMToolParamField
+---@field name string
+---@field description string
+---@field type string
+---@field optional? boolean
+
+---@class AvanteLLMToolReturn
+---@field name string
+---@field description string
+---@field type string
+---@field optional? boolean
+
+---@type AvanteLLMTool[]
+M.tools = {
+  {
+    name = "list_files",
+    description = "List files in a directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+        {
+          name = "depth",
+          description = "Depth of the directory",
+          type = "integer",
+          optional = true,
+        },
+      },
+    },
+    returns = {
+      {
+        name = "files",
+        description = "List of files in the directory",
+        type = "string[]",
+      },
+      {
+        name = "error",
+        description = "Error message if the directory was not listed successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "search_files",
+    description = "Search for files in a directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+        {
+          name = "keyword",
+          description = "Keyword to search for",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "files",
+        description = "List of files that match the keyword",
+        type = "string",
+      },
+      {
+        name = "error",
+        description = "Error message if the directory was not searched successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "search",
+    description = "Search for a keyword in a directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+        {
+          name = "keyword",
+          description = "Keyword to search for",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "files",
+        description = "List of files that match the keyword",
+        type = "string",
+      },
+      {
+        name = "error",
+        description = "Error message if the directory was not searched successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "read_file_toplevel_symbols",
+    description = "Read the top-level symbols of a file",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the file",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "definitions",
+        description = "Top-level symbols of the file",
+        type = "string",
+      },
+      {
+        name = "error",
+        description = "Error message if the file was not read successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "read_file",
+    description = "Read the contents of a file",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the file",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "content",
+        description = "Contents of the file",
+        type = "string",
+      },
+      {
+        name = "error",
+        description = "Error message if the file was not read successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "create_file",
+    description = "Create a new file",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the file",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "success",
+        description = "True if the file was created successfully, false otherwise",
+        type = "boolean",
+      },
+      {
+        name = "error",
+        description = "Error message if the file was not created successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "rename_file",
+    description = "Rename a file",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the file",
+          type = "string",
+        },
+        {
+          name = "new_rel_path",
+          description = "New relative path for the file",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "success",
+        description = "True if the file was renamed successfully, false otherwise",
+        type = "boolean",
+      },
+      {
+        name = "error",
+        description = "Error message if the file was not renamed successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "delete_file",
+    description = "Delete a file",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the file",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "success",
+        description = "True if the file was deleted successfully, false otherwise",
+        type = "boolean",
+      },
+      {
+        name = "error",
+        description = "Error message if the file was not deleted successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "create_dir",
+    description = "Create a new directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "success",
+        description = "True if the directory was created successfully, false otherwise",
+        type = "boolean",
+      },
+      {
+        name = "error",
+        description = "Error message if the directory was not created successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "rename_dir",
+    description = "Rename a directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+        {
+          name = "new_rel_path",
+          description = "New relative path for the directory",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "success",
+        description = "True if the directory was renamed successfully, false otherwise",
+        type = "boolean",
+      },
+      {
+        name = "error",
+        description = "Error message if the directory was not renamed successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "delete_dir",
+    description = "Delete a directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "success",
+        description = "True if the directory was deleted successfully, false otherwise",
+        type = "boolean",
+      },
+      {
+        name = "error",
+        description = "Error message if the directory was not deleted successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "run_command",
+    description = "Run a command in a directory",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "rel_path",
+          description = "Relative path to the directory",
+          type = "string",
+        },
+        {
+          name = "command",
+          description = "Command to run",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "stdout",
+        description = "Output of the command",
+        type = "string",
+      },
+      {
+        name = "error",
+        description = "Error message if the command was not run successfully",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+  {
+    name = "web_search",
+    description = "Search the web",
+    param = {
+      type = "table",
+      fields = {
+        {
+          name = "query",
+          description = "Query to search",
+          type = "string",
+        },
+      },
+    },
+    returns = {
+      {
+        name = "result",
+        description = "Result of the search",
+        type = "string",
+      },
+      {
+        name = "error",
+        description = "Error message if the search was not successful",
+        type = "string",
+        optional = true,
+      },
+    },
+  },
+}
+
+---@param tool_use AvanteLLMToolUse
+---@return string | nil result
+---@return string | nil error
+function M.process_tool_use(tool_use)
+  Utils.debug("use tool", tool_use.name, tool_use.input_json)
+  local tool = vim.iter(M.tools):find(function(tool) return tool.name == tool_use.name end)
+  if tool == nil then return end
+  local input_json = vim.json.decode(tool_use.input_json)
+  local func = M[tool.name]
+  local result, error = func(input_json)
+  -- Utils.debug("result", result)
+  -- Utils.debug("error", error)
+  if result ~= nil and type(result) ~= "string" then result = vim.json.encode(result) end
+  return result, error
+end
+
+return M
diff --git a/lua/avante/providers/bedrock/claude.lua b/lua/avante/providers/bedrock/claude.lua
index 47c6b40..f857cb9 100644
--- a/lua/avante/providers/bedrock/claude.lua
+++ b/lua/avante/providers/bedrock/claude.lua
@@ -6,6 +6,8 @@
 ---@field role "user" | "assistant"
 ---@field content [AvanteBedrockClaudeTextMessage][]
 
+local Claude = require("avante.providers.claude")
+
 ---@class AvanteBedrockModelHandler
 local M = {}
 
@@ -33,25 +35,7 @@ M.parse_messages = function(opts)
   return messages
 end
 
-M.parse_response = function(ctx, data_stream, event_state, opts)
-  if event_state == nil then
-    if data_stream:match('"content_block_delta"') then
-      event_state = "content_block_delta"
-    elseif data_stream:match('"message_stop"') then
-      event_state = "message_stop"
-    end
-  end
-  if event_state == "content_block_delta" then
-    local ok, json = pcall(vim.json.decode, data_stream)
-    if not ok then return end
-    opts.on_chunk(json.delta.text)
-  elseif event_state == "message_stop" then
-    opts.on_complete(nil)
-    return
-  elseif event_state == "error" then
-    opts.on_complete(vim.json.decode(data_stream))
-  end
-end
+M.parse_response = Claude.parse_response
 
 ---@param prompt_opts AvantePromptOptions
 ---@param body_opts table
@@ -60,7 +44,6 @@ M.build_bedrock_payload = function(prompt_opts, body_opts)
   local system_prompt = prompt_opts.system_prompt or ""
   local messages = M.parse_messages(prompt_opts)
   local max_tokens = body_opts.max_tokens or 2000
-  local temperature = body_opts.temperature or 0.7
   local payload = {
     anthropic_version = "bedrock-2023-05-31",
     max_tokens = max_tokens,
diff --git a/lua/avante/providers/claude.lua b/lua/avante/providers/claude.lua
index a59bb6d..300e671 100644
--- a/lua/avante/providers/claude.lua
+++ b/lua/avante/providers/claude.lua
@@ -17,6 +17,44 @@ local P = require("avante.providers")
 ---@field role "user" | "assistant"
 ---@field content [AvanteClaudeTextMessage | AvanteClaudeImageMessage][]
 
+---@class AvanteClaudeTool
+---@field name string
+---@field description string
+---@field input_schema AvanteClaudeToolInputSchema
+
+---@class AvanteClaudeToolInputSchema
+---@field type "object"
+---@field properties table<string, AvanteClaudeToolInputSchemaProperty>
+---@field required string[]
+
+---@class AvanteClaudeToolInputSchemaProperty
+---@field type "string" | "number" | "boolean"
+---@field description string
+---@field enum? string[]
+
+---@param tool AvanteLLMTool
+---@return AvanteClaudeTool
+local function transform_tool(tool)
+  local input_schema_properties = {}
+  local required = {}
+  for _, field in ipairs(tool.param.fields) do
+    input_schema_properties[field.name] = {
+      type = field.type,
+      description = field.description,
+    }
+    if not field.optional then table.insert(required, field.name) end
+  end
+  return {
+    name = tool.name,
+    description = tool.description,
+    input_schema = {
+      type = "object",
+      properties = input_schema_properties,
+      required = required,
+    },
+  }
+end
+
 ---@class AvanteProviderFunctor
 local M = {}
 
@@ -74,26 +112,101 @@ M.parse_messages = function(opts)
     messages[#messages].content = message_content
   end
 
+  if opts.tool_use then
+    local msg = {
+      role = "assistant",
+      content = {},
+    }
+    if opts.response_content then
+      msg.content[#msg.content + 1] = {
+        type = "text",
+        text = opts.response_content,
+      }
+    end
+    msg.content[#msg.content + 1] = {
+      type = "tool_use",
+      id = opts.tool_use.id,
+      name = opts.tool_use.name,
+      input = vim.json.decode(opts.tool_use.input_json),
+    }
+    messages[#messages + 1] = msg
+  end
+
+  if opts.tool_result then
+    messages[#messages + 1] = {
+      role = "user",
+      content = {
+        {
+          type = "tool_result",
+          tool_use_id = opts.tool_result.tool_use_id,
+          content = opts.tool_result.content,
+          is_error = opts.tool_result.is_error,
+        },
+      },
+    }
+  end
+
   return messages
 end
 
 M.parse_response = function(ctx, data_stream, event_state, opts)
   if event_state == nil then
-    if data_stream:match('"content_block_delta"') then
-      event_state = "content_block_delta"
+    if data_stream:match('"message_start"') then
+      event_state = "message_start"
+    elseif data_stream:match('"message_delta"') then
+      event_state = "message_delta"
     elseif data_stream:match('"message_stop"') then
       event_state = "message_stop"
+    elseif data_stream:match('"content_block_start"') then
+      event_state = "content_block_start"
+    elseif data_stream:match('"content_block_delta"') then
+      event_state = "content_block_delta"
+    elseif data_stream:match('"content_block_stop"') then
+      event_state = "content_block_stop"
     end
   end
-  if event_state == "content_block_delta" then
-    local ok, json = pcall(vim.json.decode, data_stream)
+  if event_state == "message_start" then
+    local ok, jsn = pcall(vim.json.decode, data_stream)
     if not ok then return end
-    opts.on_chunk(json.delta.text)
-  elseif event_state == "message_stop" then
-    opts.on_complete(nil)
+    opts.on_start(jsn.message.usage)
+  elseif event_state == "content_block_start" then
+    local ok, jsn = pcall(vim.json.decode, data_stream)
+    if not ok then return end
+    if jsn.content_block.type == "tool_use" then
+      ctx.tool_use = {
+        name = jsn.content_block.name,
+        id = jsn.content_block.id,
+        input_json = "",
+      }
+    elseif jsn.content_block.type == "text" then
+      ctx.response_content = ""
+    end
+  elseif event_state == "content_block_delta" then
+    local ok, jsn = pcall(vim.json.decode, data_stream)
+    if not ok then return end
+    if ctx.tool_use and jsn.delta.type == "input_json_delta" then
+      ctx.tool_use.input_json = ctx.tool_use.input_json .. jsn.delta.partial_json
+      return
+    elseif ctx.response_content and jsn.delta.type == "text_delta" then
+      ctx.response_content = ctx.response_content .. jsn.delta.text
+    end
+    opts.on_chunk(jsn.delta.text)
+  elseif event_state == "message_delta" then
+    local ok, jsn = pcall(vim.json.decode, data_stream)
+    if not ok then return end
+    if jsn.delta.stop_reason == "end_turn" then
+      opts.on_stop({ reason = "complete", usage = jsn.usage })
+    elseif jsn.delta.stop_reason == "tool_use" then
+      opts.on_stop({
+        reason = "tool_use",
+        usage = jsn.usage,
+        tool_use = ctx.tool_use,
+        response_content = ctx.response_content,
+      })
+    end
     return
   elseif event_state == "error" then
-    opts.on_complete(vim.json.decode(data_stream))
+    opts.on_stop({ reason = "error", error = vim.json.decode(data_stream) })
   end
 end
 
@@ -113,6 +226,13 @@ M.parse_curl_args = function(provider, prompt_opts)
 
   local messages = M.parse_messages(prompt_opts)
 
+  local tools = {}
+  if prompt_opts.tools then
+    for _, tool in ipairs(prompt_opts.tools) do
+      table.insert(tools, transform_tool(tool))
+    end
+  end
+
   return {
     url = Utils.url_join(base.endpoint, "/v1/messages"),
     proxy = base.proxy,
@@ -128,6 +248,7 @@ M.parse_curl_args = function(provider, prompt_opts)
         },
       },
       messages = messages,
+      tools = tools,
       stream = true,
     }, body_opts),
   }
diff --git a/lua/avante/providers/cohere.lua b/lua/avante/providers/cohere.lua
index af12faa..e6f787e 100644
--- a/lua/avante/providers/cohere.lua
+++ b/lua/avante/providers/cohere.lua
@@ -62,7 +62,7 @@ M.parse_stream_data = function(data, opts)
   local json = vim.json.decode(data)
   if json.type ~= nil then
     if json.type == "message-end" and json.delta.finish_reason == "COMPLETE" then
-      opts.on_complete(nil)
+      opts.on_stop({ reason = "complete" })
       return
     end
     if json.type == "content-delta" then opts.on_chunk(json.delta.message.content.text) end
diff --git a/lua/avante/providers/gemini.lua b/lua/avante/providers/gemini.lua
index 9e29e4e..af63565 100644
--- a/lua/avante/providers/gemini.lua
+++ b/lua/avante/providers/gemini.lua
@@ -66,17 +66,17 @@ end
 
 M.parse_response = function(ctx, data_stream, _, opts)
   local ok, json = pcall(vim.json.decode, data_stream)
-  if not ok then opts.on_complete(json) end
+  if not ok then opts.on_stop({ reason = "error", error = json }) end
   if json.candidates then
     if #json.candidates > 0 then
       if json.candidates[1].finishReason and json.candidates[1].finishReason == "STOP" then
         opts.on_chunk(json.candidates[1].content.parts[1].text)
-        opts.on_complete(nil)
+        opts.on_stop({ reason = "complete" })
       else
         opts.on_chunk(json.candidates[1].content.parts[1].text)
       end
     else
-      opts.on_complete(nil)
+      opts.on_stop({ reason = "complete" })
     end
   end
 end
diff --git a/lua/avante/providers/init.lua b/lua/avante/providers/init.lua
index 1802f3a..ba9848c 100644
--- a/lua/avante/providers/init.lua
+++ b/lua/avante/providers/init.lua
@@ -11,17 +11,28 @@ local DressingConfig = {
 local DressingState = { winid = nil, input_winid = nil, input_bufnr = nil }
 
 ---@class AvanteHandlerOptions: table<[string], string>
----@field on_chunk AvanteChunkParser
----@field on_complete AvanteCompleteParser
+---@field on_start AvanteLLMStartCallback
+---@field on_chunk AvanteLLMChunkCallback
+---@field on_stop AvanteLLMStopCallback
 ---
 ---@class AvanteLLMMessage
 ---@field role "user" | "assistant"
 ---@field content string
 ---
+---@class AvanteLLMToolResult
+---@field tool_name string
+---@field tool_use_id string
+---@field content string
+---@field is_error? boolean
+---
 ---@class AvantePromptOptions: table<[string], string>
 ---@field system_prompt string
 ---@field messages AvanteLLMMessage[]
 ---@field image_paths? string[]
+---@field tools? AvanteLLMTool[]
+---@field tool_result? AvanteLLMToolResult
+---@field tool_use? AvanteLLMToolUse
+---@field response_content? string
 ---
 ---@class AvanteGeminiMessage
 ---@field role "user"
@@ -35,8 +46,9 @@ local DressingState = { winid = nil, input_winid = nil, input_bufnr = nil }
 ---@alias AvanteCurlArgsParser fun(opts: AvanteProvider | AvanteProviderFunctor | AvanteBedrockProviderFunctor, code_opts: AvantePromptOptions): AvanteCurlOutput
 ---
 ---@class ResponseParser
----@field on_chunk fun(chunk: string): any
----@field on_complete fun(err: string|nil): any
+---@field on_start AvanteLLMStartCallback
+---@field on_chunk AvanteLLMChunkCallback
+---@field on_stop AvanteLLMStopCallback
 ---@alias AvanteResponseParser fun(ctx: any, data_stream: string, event_state: string, opts: ResponseParser): nil
 ---
 ---@class AvanteDefaultBaseProvider: table<string, any>
@@ -54,9 +66,31 @@ local DressingState = { winid = nil, input_winid = nil, input_bufnr = nil }
 ---@field temperature? number
 ---@field max_tokens? number
 ---
+---@class AvanteLLMUsage
+---@field input_tokens number
+---@field cache_creation_input_tokens number
+---@field cache_read_input_tokens number
+---@field output_tokens number
+---
+---@class AvanteLLMToolUse
+---@field name string
+---@field id string
+---@field input_json string
+---
+---@class AvanteLLMStartCallbackOptions
+---@field usage? AvanteLLMUsage
+---
+---@class AvanteLLMStopCallbackOptions
+---@field reason "complete" | "tool_use" | "error"
+---@field error? string | table
+---@field usage? AvanteLLMUsage
+---@field tool_use? AvanteLLMToolUse
+---@field response_content? string
+---
 ---@alias AvanteStreamParser fun(line: string, handler_opts: AvanteHandlerOptions): nil
----@alias AvanteChunkParser fun(chunk: string): any
----@alias AvanteCompleteParser fun(err: string|nil): nil
+---@alias AvanteLLMStartCallback fun(opts: AvanteLLMStartCallbackOptions): nil
+---@alias AvanteLLMChunkCallback fun(chunk: string): any
+---@alias AvanteLLMStopCallback fun(opts: AvanteLLMStopCallbackOptions): nil
 ---@alias AvanteLLMConfigHandler fun(opts: AvanteSupportedProvider): AvanteDefaultBaseProvider, table<string, any>
 ---
 ---@class AvanteProvider: AvanteSupportedProvider
diff --git a/lua/avante/providers/openai.lua b/lua/avante/providers/openai.lua
index 40b7951..54ab509 100644
--- a/lua/avante/providers/openai.lua
+++ b/lua/avante/providers/openai.lua
@@ -24,12 +24,72 @@ local P = require("avante.providers")
 ---@field index integer
 ---@field logprobs integer
 ---
+---@class OpenAIMessageToolCallFunction
+---@field name string
+---@field arguments string
+---
+---@class OpenAIMessageToolCall
+---@field id string
+---@field type "function"
+---@field function OpenAIMessageToolCallFunction
+---
 ---@class OpenAIMessage
 ---@field role? "user" | "system" | "assistant"
 ---@field content? string
 ---@field reasoning_content? string
 ---@field reasoning? string
+---@field tool_calls? OpenAIMessageToolCall[]
 ---
+---@class AvanteOpenAITool
+---@field type "function"
+---@field function AvanteOpenAIToolFunction
+---
+---@class AvanteOpenAIToolFunction
+---@field name string
+---@field description string
+---@field parameters AvanteOpenAIToolFunctionParameters
+---@field strict boolean
+---
+---@class AvanteOpenAIToolFunctionParameters
+---@field type string
+---@field properties table<string, AvanteOpenAIToolFunctionParameterProperty>
+---@field required string[]
+---@field additionalProperties boolean
+---
+---@class AvanteOpenAIToolFunctionParameterProperty
+---@field type string
+---@field description string
+
+---@param tool AvanteLLMTool
+---@return AvanteOpenAITool
+local function transform_tool(tool)
+  local input_schema_properties = {}
+  local required = {}
+  for _, field in ipairs(tool.param.fields) do
+    input_schema_properties[field.name] = {
+      type = field.type,
+      description = field.description,
+    }
+    if not field.optional then table.insert(required, field.name) end
+  end
+  local res = {
+    type = "function",
+    ["function"] = {
+      name = tool.name,
+      description = tool.description,
+    },
+  }
+  if vim.tbl_count(input_schema_properties) > 0 then
+    res["function"].parameters = {
+      type = "object",
+      properties = input_schema_properties,
+      required = required,
+      additionalProperties = false,
+    }
+  end
+  return res
+end
+
 ---@class AvanteProviderFunctor
 local M = {}
 
@@ -107,12 +167,34 @@ M.parse_messages = function(opts)
     table.insert(final_messages, { role = M.role_map[role] or role, content = message.content })
   end)
 
+  if opts.tool_result then
+    table.insert(final_messages, {
+      role = M.role_map["assistant"],
+      tool_calls = {
+        {
+          id = opts.tool_use.id,
+          type = "function",
+          ["function"] = {
+            name = opts.tool_use.name,
+            arguments = opts.tool_use.input_json,
+          },
+        },
+      },
+    })
+    local result_content = opts.tool_result.content or ""
+    table.insert(final_messages, {
+      role = "tool",
+      tool_call_id = opts.tool_result.tool_use_id,
+      content = opts.tool_result.is_error and "Error: " .. result_content or result_content,
+    })
+  end
+
   return final_messages
 end
 
 M.parse_response = function(ctx, data_stream, _, opts)
   if data_stream:match('"%[DONE%]":') then
-    opts.on_complete(nil)
+    opts.on_stop({ reason = "complete" })
     return
   end
   if data_stream:match('"delta":') then
@@ -121,7 +203,14 @@ M.parse_response = function(ctx, data_stream, _, opts)
     if jsn.choices and jsn.choices[1] then
       local choice = jsn.choices[1]
       if choice.finish_reason == "stop" or choice.finish_reason == "eos_token" then
-        opts.on_complete(nil)
+        opts.on_stop({ reason = "complete" })
+      elseif choice.finish_reason == "tool_calls" then
+        opts.on_stop({
+          reason = "tool_use",
+          usage = jsn.usage,
+          tool_use = ctx.tool_use,
+          response_content = ctx.response_content,
+        })
       elseif choice.delta.reasoning_content and choice.delta.reasoning_content ~= vim.NIL then
         if ctx.returned_think_start_tag == nil or not ctx.returned_think_start_tag then
           ctx.returned_think_start_tag = true
@@ -136,6 +225,17 @@ M.parse_response = function(ctx, data_stream, _, opts)
         end
         ctx.last_think_content = choice.delta.reasoning
         opts.on_chunk(choice.delta.reasoning)
+      elseif choice.delta.tool_calls then
+        local tool_call = choice.delta.tool_calls[1]
+        if not ctx.tool_use then
+          ctx.tool_use = {
+            name = tool_call["function"].name,
+            id = tool_call.id,
+            input_json = "",
+          }
+        else
+          ctx.tool_use.input_json = ctx.tool_use.input_json .. tool_call["function"].arguments
+        end
       elseif choice.delta.content then
         if
           ctx.returned_think_start_tag ~= nil and (ctx.returned_think_end_tag == nil or not ctx.returned_think_end_tag)
@@ -164,7 +264,7 @@ M.parse_response_without_stream = function(data, _, opts)
     local choice = json.choices[1]
     if choice.message and choice.message.content then
       opts.on_chunk(choice.message.content)
-      vim.schedule(function() opts.on_complete(nil) end)
+      vim.schedule(function() opts.on_stop({ reason = "complete" }) end)
     end
   end
 end
@@ -198,6 +298,13 @@ M.parse_curl_args = function(provider, code_opts)
     body_opts.temperature = 1
   end
 
+  local tools = {}
+  if code_opts.tools then
+    for _, tool in ipairs(code_opts.tools) do
+      table.insert(tools, transform_tool(tool))
+    end
+  end
+
   Utils.debug("endpoint", base.endpoint)
   Utils.debug("model", base.model)
 
@@ -210,6 +317,7 @@ M.parse_curl_args = function(provider, code_opts)
       model = base.model,
       messages = M.parse_messages(code_opts),
       stream = stream,
+      tools = tools,
     }, body_opts),
   }
 end
diff --git a/lua/avante/selection.lua b/lua/avante/selection.lua
index 37d5de7..db68127 100644
--- a/lua/avante/selection.lua
+++ b/lua/avante/selection.lua
@@ -157,7 +157,10 @@ function Selection:create_editing_input()
 
     self.prompt_input:start_spinner()
 
-    ---@type AvanteChunkParser
+    ---@type AvanteLLMStartCallback
+    local on_start = function(start_opts) end
+
+    ---@type AvanteLLMChunkCallback
     local on_chunk = function(chunk)
       full_response = full_response .. chunk
       local response_lines_ = vim.split(full_response, "\n")
@@ -182,13 +185,15 @@ function Selection:create_editing_input()
       finish_line = start_line + #response_lines - 1
     end
 
-    ---@type AvanteCompleteParser
-    local on_complete = function(err)
-      if err then
+    ---@type AvanteLLMStopCallback
+    local on_stop = function(stop_opts)
+      if stop_opts.error then
         -- NOTE: in Ubuntu 22.04+ you will see this ignorable error from ~/.local/share/nvim/lazy/avante.nvim/lua/avante/llm.lua `on_error = function(err)`, check to avoid showing this error.
-        if type(err) == "table" and err.exit == nil and err.stderr == "{}" then return end
+        if type(stop_opts.error) == "table" and stop_opts.error.exit == nil and stop_opts.error.stderr == "{}" then
+          return
+        end
         Utils.error(
-          "Error occurred while processing the response: " .. vim.inspect(err),
+          "Error occurred while processing the response: " .. vim.inspect(stop_opts.error),
           { once = true, title = "Avante" }
         )
         return
@@ -216,8 +221,9 @@ function Selection:create_editing_input()
       selected_code = self.selection.content,
       instructions = input,
       mode = "editing",
+      on_start = on_start,
       on_chunk = on_chunk,
-      on_complete = on_complete,
+      on_stop = on_stop,
     })
   end
 
diff --git a/lua/avante/sidebar.lua b/lua/avante/sidebar.lua
index 111749c..a55c394 100644
--- a/lua/avante/sidebar.lua
+++ b/lua/avante/sidebar.lua
@@ -13,6 +13,7 @@ local Utils = require("avante.utils")
 local Highlights = require("avante.highlights")
 local RepoMap = require("avante.repo_map")
 local FileSelector = require("avante.file_selector")
+local LLMTools = require("avante.llm_tools")
 
 local RESULT_BUF_NAME = "AVANTE_RESULT"
 local VIEW_BUFFER_UPDATED_PATTERN = "AvanteViewBufferUpdated"
@@ -1669,6 +1670,7 @@ function Sidebar:create_input_container(opts)
       selected_code = selected_code_content,
       instructions = request,
       mode = "planning",
+      tools = LLMTools.tools,
     }
   end
 
@@ -1755,7 +1757,10 @@ function Sidebar:create_input_container(opts)
     vim.keymap.set("n", "k", on_k, { buffer = self.result_container.bufnr })
     vim.keymap.set("n", "G", on_G, { buffer = self.result_container.bufnr })
 
-    ---@type AvanteChunkParser
+    ---@type AvanteLLMStartCallback
+    local on_start = function(start_opts) end
+
+    ---@type AvanteLLMChunkCallback
     local on_chunk = function(chunk)
       original_response = original_response .. chunk
 
@@ -1778,8 +1783,8 @@ function Sidebar:create_input_container(opts)
       displayed_response = cur_displayed_response
     end
 
-    ---@type AvanteCompleteParser
-    local on_complete = function(err)
+    ---@type AvanteLLMStopCallback
+    local on_stop = function(stop_opts)
       pcall(function()
         ---remove keymaps
         vim.keymap.del("n", "j", { buffer = self.result_container.bufnr })
@@ -1787,9 +1792,9 @@ function Sidebar:create_input_container(opts)
         vim.keymap.del("n", "G", { buffer = self.result_container.bufnr })
       end)
 
-      if err ~= nil then
+      if stop_opts.error ~= nil then
         self:update_content(
-          content_prefix .. displayed_response .. "\n\nError: " .. vim.inspect(err),
+          content_prefix .. displayed_response .. "\n\nError: " .. vim.inspect(stop_opts.error),
           { scroll = scroll }
         )
         return
@@ -1835,8 +1840,9 @@ function Sidebar:create_input_container(opts)
     ---@type StreamOptions
     ---@diagnostic disable-next-line: assign-type-mismatch
     local stream_options = vim.tbl_deep_extend("force", generate_prompts_options, {
+      on_start = on_start,
       on_chunk = on_chunk,
-      on_complete = on_complete,
+      on_stop = on_stop,
     })
 
     Llm.stream(stream_options)
diff --git a/lua/avante/suggestion.lua b/lua/avante/suggestion.lua
index da06e2a..2218b6c 100644
--- a/lua/avante/suggestion.lua
+++ b/lua/avante/suggestion.lua
@@ -141,8 +141,10 @@ L5:    pass
     history_messages = history_messages,
     instructions = vim.json.encode(doc),
     mode = "suggesting",
+    on_start = function(_) end,
     on_chunk = function(chunk) full_response = full_response .. chunk end,
-    on_complete = function(err)
+    on_stop = function(stop_opts)
+      local err = stop_opts.error
       if err then
         Utils.error("Error while suggesting: " .. vim.inspect(err), { once = true, title = "Avante" })
         return
diff --git a/lua/avante/templates/base.avanterules b/lua/avante/templates/base.avanterules
index ce2a6c3..a196d4a 100644
--- a/lua/avante/templates/base.avanterules
+++ b/lua/avante/templates/base.avanterules
@@ -10,5 +10,13 @@
 Act as an expert software developer.
 Always use best practices when coding.
 Respect and use existing conventions, libraries, etc that are already present in the code base.
+You have access to tools, but only use them when necessary. If a tool is not required, respond as normal.
+If you have information that you don't know, please proactively use the tools provided by users! Especially the web search tool.
+
+{% if system_info -%}
+Use the appropriate shell based on the user's system info:
+{{system_info}}
+{%- endif %}
+
 {% block extra_prompt %}
 {% endblock %}
diff --git a/lua/avante/utils/init.lua b/lua/avante/utils/init.lua
index 23c1079..bf2e3d3 100644
--- a/lua/avante/utils/init.lua
+++ b/lua/avante/utils/init.lua
@@ -47,6 +47,31 @@ M.get_os_name = function()
   end
 end
 
+M.get_system_info = function()
+  local os_name = vim.loop.os_uname().sysname
+  local os_version = vim.loop.os_uname().release
+  local os_machine = vim.loop.os_uname().machine
+  local lang = os.getenv("LANG")
+
+  local res = string.format(
+    "- Platform: %s-%s-%s\n- Shell: %s\n- Language: %s\n- Current date: %s",
+    os_name,
+    os_version,
+    os_machine,
+    vim.o.shell,
+    lang,
+    os.date("%Y-%m-%d")
+  )
+
+  local project_root = M.root.get()
+  if project_root then res = res .. string.format("\n- Project root: %s", project_root) end
+
+  local is_git_repo = vim.fn.isdirectory(".git") == 1
+  if is_git_repo then res = res .. "\n- The user is operating inside a git repository" end
+
+  return res
+end
+
 --- This function will run given shell command synchronously.
 ---@param input_cmd string
 ---@return vim.SystemCompleted
@@ -622,6 +647,7 @@ function M.parse_gitignore(gitignore_path)
   end
 
   file:close()
+  ignore_patterns = vim.list_extend(ignore_patterns, { "%.git", "%.worktree", "__pycache__", "node_modules" })
   return ignore_patterns, negate_patterns
 end
 
@@ -635,26 +661,28 @@ function M.is_ignored(file, ignore_patterns, negate_patterns)
   return false
 end
 
----@param options { directory: string, add_dirs?: boolean }
+---@param options { directory: string, add_dirs?: boolean, depth?: integer }
 function M.scan_directory_respect_gitignore(options)
   local directory = options.directory
   local gitignore_path = directory .. "/.gitignore"
   local gitignore_patterns, gitignore_negate_patterns = M.parse_gitignore(gitignore_path)
-  gitignore_patterns = vim.list_extend(gitignore_patterns, { "%.git", "%.worktree", "__pycache__", "node_modules" })
   return M.scan_directory({
     directory = directory,
     gitignore_patterns = gitignore_patterns,
     gitignore_negate_patterns = gitignore_negate_patterns,
     add_dirs = options.add_dirs,
+    depth = options.depth,
   })
 end
 
----@param options { directory: string, gitignore_patterns: string[], gitignore_negate_patterns: string[], add_dirs?: boolean }
+---@param options { directory: string, gitignore_patterns: string[], gitignore_negate_patterns: string[], add_dirs?: boolean, depth?: integer, current_depth?: integer }
 function M.scan_directory(options)
   local directory = options.directory
   local ignore_patterns = options.gitignore_patterns
   local negate_patterns = options.gitignore_negate_patterns
   local add_dirs = options.add_dirs or false
+  local depth = options.depth or -1
+  local current_depth = options.current_depth or 0
 
   local files = {}
   local handle = vim.loop.fs_scandir(directory)
@@ -662,6 +690,8 @@ function M.scan_directory(options)
   if not handle then return files end
 
   while true do
+    if depth > 0 and current_depth >= depth then break end
+
     local name, type = vim.loop.fs_scandir_next(handle)
     if not name then break end
 
@@ -677,6 +707,7 @@ function M.scan_directory(options)
           gitignore_patterns = ignore_patterns,
           gitignore_negate_patterns = negate_patterns,
           add_dirs = add_dirs,
+          current_depth = current_depth + 1,
         })
       )
     elseif type == "file" then
diff --git a/tests/llm_tools_spec.lua b/tests/llm_tools_spec.lua
new file mode 100644
index 0000000..372499c
--- /dev/null
+++ b/tests/llm_tools_spec.lua
@@ -0,0 +1,186 @@
+local mock = require("luassert.mock")
+local stub = require("luassert.stub")
+local LlmTools = require("avante.llm_tools")
+local Utils = require("avante.utils")
+
+LlmTools.confirm = function(msg) return true end
+
+describe("llm_tools", function()
+  local test_dir = "/tmp/test_llm_tools"
+  local test_file = test_dir .. "/test.txt"
+
+  before_each(function()
+    -- 创建测试目录和文件
+    os.execute("mkdir -p " .. test_dir)
+    local file = io.open(test_file, "w")
+    file:write("test content")
+    file:close()
+
+    -- Mock get_project_root
+    stub(Utils, "get_project_root", function() return test_dir end)
+  end)
+
+  after_each(function()
+    -- 清理测试目录
+    os.execute("rm -rf " .. test_dir)
+    -- 恢复 mock
+    Utils.get_project_root:revert()
+  end)
+
+  describe("list_files", function()
+    it("should list files in directory", function()
+      local result, err = LlmTools.list_files({ rel_path = ".", depth = 1 })
+      assert.is_nil(err)
+      assert.truthy(result:find("test.txt"))
+    end)
+  end)
+
+  describe("read_file", function()
+    it("should read file content", function()
+      local content, err = LlmTools.read_file({ rel_path = "test.txt" })
+      assert.is_nil(err)
+      assert.equals("test content", content)
+    end)
+
+    it("should return error for non-existent file", function()
+      local content, err = LlmTools.read_file({ rel_path = "non_existent.txt" })
+      assert.truthy(err)
+      assert.equals("", content)
+    end)
+  end)
+
+  describe("create_file", function()
+    it("should create new file", function()
+      local success, err = LlmTools.create_file({ rel_path = "new_file.txt" })
+      assert.is_nil(err)
+      assert.is_true(success)
+
+      local file_exists = io.open(test_dir .. "/new_file.txt", "r") ~= nil
+      assert.is_true(file_exists)
+    end)
+  end)
+
+  describe("create_dir", function()
+    it("should create new directory", function()
+      local success, err = LlmTools.create_dir({ rel_path = "new_dir" })
+      assert.is_nil(err)
+      assert.is_true(success)
+
+      local dir_exists = io.open(test_dir .. "/new_dir", "r") ~= nil
+      assert.is_true(dir_exists)
+    end)
+  end)
+
+  describe("delete_file", function()
+    it("should delete existing file", function()
+      local success, err = LlmTools.delete_file({ rel_path = "test.txt" })
+      assert.is_nil(err)
+      assert.is_true(success)
+
+      local file_exists = io.open(test_file, "r") ~= nil
+      assert.is_false(file_exists)
+    end)
+  end)
+
+  describe("search_files", function()
+    it("should find files matching pattern", function()
+      local result, err = LlmTools.search_files({ rel_path = ".", keyword = "test" })
+      assert.is_nil(err)
+      assert.truthy(result:find("test.txt"))
+    end)
+  end)
+
+  describe("search", function()
+    local original_exepath = vim.fn.exepath
+
+    after_each(function() vim.fn.exepath = original_exepath end)
+
+    it("should search using ripgrep when available", function()
+      -- Mock exepath to return rg path
+      vim.fn.exepath = function(cmd)
+        if cmd == "rg" then return "/usr/bin/rg" end
+        return ""
+      end
+
+      -- Create a test file with searchable content
+      local file = io.open(test_dir .. "/searchable.txt", "w")
+      file:write("this is searchable content")
+      file:close()
+
+      file = io.open(test_dir .. "/nothing.txt", "w")
+      file:write("this is nothing")
+      file:close()
+
+      local result, err = LlmTools.search({ rel_path = ".", keyword = "searchable" })
+      assert.is_nil(err)
+      assert.truthy(result:find("searchable.txt"))
+      assert.falsy(result:find("nothing.txt"))
+    end)
+
+    it("should search using ag when rg is not available", function()
+      -- Mock exepath to return ag path
+      vim.fn.exepath = function(cmd)
+        if cmd == "ag" then return "/usr/bin/ag" end
+        return ""
+      end
+
+      -- Create a test file specifically for ag
+      local file = io.open(test_dir .. "/ag_test.txt", "w")
+      file:write("content for ag test")
+      file:close()
+
+      local result, err = LlmTools.search({ rel_path = ".", keyword = "ag test" })
+      assert.is_nil(err)
+      assert.is_string(result)
+      assert.truthy(result:find("ag_test.txt"))
+    end)
+
+    it("should search using grep when rg and ag are not available", function()
+      -- Mock exepath to return grep path
+      vim.fn.exepath = function(cmd)
+        if cmd == "grep" then return "/usr/bin/grep" end
+        return ""
+      end
+
+      local result, err = LlmTools.search({ rel_path = ".", keyword = "test" })
+      assert.is_nil(err)
+      assert.truthy(result:find("test.txt"))
+    end)
+
+    it("should return error when no search tool is available", function()
+      -- Mock exepath to return nothing
+      vim.fn.exepath = function() return "" end
+
+      local result, err = LlmTools.search({ rel_path = ".", keyword = "test" })
+      assert.equals("", result)
+      assert.equals("No search command found", err)
+    end)
+
+    it("should respect path permissions", function()
+      local result, err = LlmTools.search({ rel_path = "../outside_project", keyword = "test" })
+      assert.truthy(err:find("No permission to access path"))
+    end)
+
+    it("should handle non-existent paths", function()
+      local result, err = LlmTools.search({ rel_path = "non_existent_dir", keyword = "test" })
+      assert.equals("", result)
+      assert.truthy(err)
+      assert.truthy(err:find("No such file or directory"))
+    end)
+  end)
+
+  describe("run_command", function()
+    it("should execute command and return output", function()
+      local result, err = LlmTools.run_command({ rel_path = ".", command = "echo 'test'" })
+      assert.is_nil(err)
+      assert.equals("test\n", result)
+    end)
+
+    it("should return error when running outside current directory", function()
+      local result, err = LlmTools.run_command({ rel_path = "../outside_project", command = "echo 'test'" })
+      assert.is_false(result)
+      assert.truthy(err)
+      assert.truthy(err:find("No permission to access path"))
+    end)
+  end)
+end)