feat(formatter): display loaded skill name in skill tool calls

lua/opencode/ui/formatter/tools/init.lua

@@ -10,6 +10,7 @@ return {
   webfetch = require('opencode.ui.formatter.tools.webfetch'),
   list = require('opencode.ui.formatter.tools.list'),
   question = require('opencode.ui.formatter.tools.question'),
+  skill = require('opencode.ui.formatter.tools.skill'),
   task = require('opencode.ui.formatter.tools.task'),
   tool = require('opencode.ui.formatter.tools.tool'),
 }

lua/opencode/ui/formatter/tools/skill.lua

@@ -0,0 +1,20 @@
+local icons = require('opencode.ui.icons')
+local utils = require('opencode.ui.formatter.utils')
+
+local M = {}
+
+---@param output Output
+---@param part OpencodeMessagePart
+function M.format(output, part)
+  local input = part.state and part.state.input or {}
+  utils.format_action(output, icons.get('skill'), 'skill', input.name or '', utils.get_duration_text(part))
+end
+
+---@param _ OpencodeMessagePart
+---@param input table
+---@return string, string, string
+function M.summary(_, input)
+  return icons.get('skill'), 'skill', input.name or ''
+end
+
+return M

lua/opencode/ui/icons.lua

@@ -19,6 +19,7 @@ local presets = {
     web = '󰖟 ',
     list = ' ',
     tool = ' ',
+    skill = '󰐱 ',
     snapshot = '󰻛 ',
     restore_point = '󱗚 ',
     file = ' ',
@@ -64,6 +65,7 @@ local presets = {
     web = '::',
     list = '::',
     tool = '::',
+    skill = '::',
     snapshot = '::',
     restore_point = '::',
     file = '@',

tests/unit/formatter_spec.lua

@@ -202,6 +202,40 @@ describe('formatter', function()
     assert.is_true(found)
   end)
 
+  it('renders loaded skill name for skill tool calls', function()
+    local message = {
+      info = {
+        id = 'msg_1',
+        role = 'assistant',
+        sessionID = 'ses_1',
+      },
+      parts = {},
+    }
+
+    local part = {
+      id = 'prt_1',
+      type = 'tool',
+      tool = 'skill',
+      messageID = 'msg_1',
+      sessionID = 'ses_1',
+      state = {
+        status = 'completed',
+        input = {
+          name = 'context7-cli',
+        },
+        time = {
+          start = 1,
+          ['end'] = 2,
+        },
+      },
+    }
+
+    local output = formatter.format_part(part, message, true)
+
+    assert.is_truthy(output.lines[1]:find('skill', 1, true))
+    assert.is_truthy(output.lines[1]:find('context7%-cli'))
+  end)
+
   it('renders directory reads with trailing slash', function()
     local message = {
       info = {