feat(codecompanion): add format_tool

Author: powerman

doc/extensions/codecompanion.md

@@ -32,6 +32,27 @@ require("codecompanion").setup({
         show_server_tools_in_chat = true, -- Show individual tools in chat completion (when make_tools=true)
         add_mcp_prefix_to_tool_names = false, -- Add mcp__ prefix (e.g `@mcp__github`, `@mcp__neovim__list_issues`)
         show_result_in_chat = true,      -- Show tool results directly in chat buffer
+        format_tool = function(display_name, tool)
+          local args = vim.deepcopy(tool.args)
+          -- Replace 'use_mcp_tool' with actual tool name and params.
+          if name == 'use_mcp_tool' then
+            name = string.format('%s__%s', args.server_name, args.tool_name)
+            args = args.tool_input
+          end
+
+          if name == 'filesystem__edit_file' then
+            if type(args.edits) == 'table' then
+              args.edits = '󰩫'
+            end
+          elseif name == 'filesystem__write_file' then
+            if type(args.content) == 'string' then
+              args.content = '󰩫'
+            end
+          end
+
+          local args = vim.inspect(args):gsub('%s+', ' ')
+          return name .. ' ' .. args
+        end,
         -- MCP Resources
         make_vars = true,                -- Convert MCP resources to #variables for prompts
         -- MCP Prompts 

doc/mcphub.txt

@@ -2785,6 +2785,27 @@ Register MCP Hub as an extension in your CodeCompanion configuration:
             show_server_tools_in_chat = true, -- Show individual tools in chat completion (when make_tools=true)
             add_mcp_prefix_to_tool_names = false, -- Add mcp__ prefix (e.g `@mcp__github`, `@mcp__neovim__list_issues`)
             show_result_in_chat = true,      -- Show tool results directly in chat buffer
+            format_tool = function(display_name, tool)
+              local args = vim.deepcopy(tool.args)
+              -- Replace 'use_mcp_tool' with actual tool name and params.
+              if name == 'use_mcp_tool' then
+                name = string.format('%s__%s', args.server_name, args.tool_name)
+                args = args.tool_input
+              end
+    
+              if name == 'filesystem__edit_file' then
+                if type(args.edits) == 'table' then
+                  args.edits = '󰩫'
+                end
+              elseif name == 'filesystem__write_file' then
+                if type(args.content) == 'string' then
+                  args.content = '󰩫'
+                end
+              end
+    
+              local args = vim.inspect(args):gsub('%s+', ' ')
+              return name .. ' ' .. args
+            end,
             -- MCP Resources
             make_vars = true,                -- Convert MCP resources to #variables for prompts
             -- MCP Prompts 

lua/mcphub/extensions/codecompanion/core.lua

@@ -87,7 +87,7 @@ function M.execute_mcp_tool(params, agent, output_handler, context)
 end
 
 ---@param display_name string
----@param tool table
+---@param tool CodeCompanion.Agent.Tool
 ---@param chat any
 ---@param llm_msg string
 ---@param is_error boolean
@@ -111,13 +111,14 @@ local function add_tool_output(
     local helpers = require("codecompanion.strategies.chat.helpers")
     local show_result_in_chat = opts.show_result_in_chat == true
     local text = llm_msg
+    local formatted_name = opts.format_tool and opts.format_tool(display_name, tool) or display_name
 
     if has_function_calling then
         chat:add_tool_output(
             tool,
             text,
             (user_msg or show_result_in_chat or is_error) and (user_msg or text)
-                or string.format("**`%s` Tool**: Successfully finished", display_name)
+                or string.format("**`%s` Tool**: Successfully finished", formatted_name)
         )
         for _, image in ipairs(images) do
             helpers.add_image(chat, image)
@@ -135,7 +136,7 @@ local function add_tool_output(
             })
             chat:add_buf_message({
                 role = config.constants.USER_ROLE,
-                content = string.format("I've shared the result of the `%s` tool with you.\n", display_name),
+                content = string.format("I've shared the result of the `%s` tool with you.\n", formatted_name),
             })
         end
     end
@@ -159,14 +160,15 @@ function M.create_output_handlers(display_name, has_function_calling, opts)
                 ---@diagnostic disable-next-line: cast-local-type
                 stderr = vim.inspect(stderr)
             end
+            local formatted_name = opts.format_tool and opts.format_tool(display_name, self) or display_name
             local err_msg = string.format(
                 [[**`%s` Tool**: Failed with the following error:
 
 ````
 %s
 ````
 ]],
-                display_name,
+                formatted_name,
                 stderr
             )
             add_tool_output(display_name, self, agent.chat, err_msg, true, has_function_calling, opts, nil, {})
@@ -182,6 +184,7 @@ function M.create_output_handlers(display_name, has_function_calling, opts)
             local result = has_function_calling and stdout[#stdout] or cmd[#cmd]
             ---@diagnostic disable-next-line: cast-local-type
             agent = has_function_calling and agent or self
+            local formatted_name = opts.format_tool and opts.format_tool(display_name, self) or display_name
             local to_llm = nil
             local to_user = nil
             local images = {}
@@ -193,7 +196,7 @@ function M.create_output_handlers(display_name, has_function_calling, opts)
 ````
 %s
 ````]],
-                    display_name,
+                    formatted_name,
                     result.text
                 )
             end
@@ -216,7 +219,7 @@ function M.create_output_handlers(display_name, has_function_calling, opts)
 ````
 %s
 ````]],
-                        display_name,
+                        formatted_name,
                         string.format("%d image%s returned", #result.images, #result.images > 1 and "s" or "")
                     )
                 end
@@ -233,9 +236,9 @@ function M.create_output_handlers(display_name, has_function_calling, opts)
                 end
             end
 
-            local fallback_to_llm = string.format("**`%s` Tool**: Completed with no output", display_name)
+            local fallback_to_llm = string.format("**`%s` Tool**: Completed with no output", formatted_name)
             if opts.show_result_in_chat == false and not to_user then
-                to_user = string.format("**`%s` Tool**: Successfully finished", display_name)
+                to_user = string.format("**`%s` Tool**: Successfully finished", formatted_name)
             end
             add_tool_output(
                 display_name,