Add folke/sidekick.nvim AI plugin to neovim

Author: joshjavier

dot_config/nvim/init.lua

@@ -235,6 +235,7 @@ require('lazy').setup({
         { '<leader>g', group = '[G]it', mode = { 'n', 'v' } },
         { '<leader>t', group = '[T]oggle' },
         { '<leader>u', group = '[U]I' },
+        { '<leader>a', group = '[A]I / Sidekick' },
         { '<leader>h', group = 'Git [H]unk', mode = { 'n', 'v' } }, -- Enable gitsigns recommended keymaps first
         { 'gr', group = 'LSP Actions', mode = { 'n' } },
         { 'ga', group = 'LSP Calls', mode = { 'n' } },
@@ -431,6 +432,7 @@ require('lazy').setup({
         cssls = {},
         cssmodules_ls = {},
         oxlint = {},
+        copilot = {},
       }
 
       -- Ensure the servers and tools above are installed

dot_config/nvim/lazy-lock.json

@@ -23,10 +23,12 @@
   "nvim-lspconfig": { "branch": "master", "commit": "5a855bcfec7973767a1a472335684bbd71d2fa2b" },
   "nvim-nio": { "branch": "master", "commit": "21f5324bfac14e22ba26553caf69ec76ae8a7662" },
   "nvim-treesitter": { "branch": "main", "commit": "d660b7c002f3922b6bb3da47206645488a698426" },
+  "nvim-treesitter-textobjects": { "branch": "main", "commit": "93d60a475f0b08a8eceb99255863977d3a25f310" },
   "nvim-ts-autotag": { "branch": "main", "commit": "8e1c0a389f20bf7f5b0dd0e00306c1247bda2595" },
   "nvim-web-devicons": { "branch": "master", "commit": "746ffbb17975ebd6c40142362eee1b0249969c5c" },
   "plenary.nvim": { "branch": "master", "commit": "b9fd5226c2f76c951fc8ed5923d85e4de065e509" },
   "schemastore.nvim": { "branch": "main", "commit": "84d86aa49021aa8b48c0a6ff89cd92c39ddf7d5c" },
+  "sidekick.nvim": { "branch": "main", "commit": "17447a05f9385e5f8372b61530f6f9329cb82421" },
   "snacks.nvim": { "branch": "main", "commit": "ad9ede6a9cddf16cedbd31b8932d6dcdee9b716e" },
   "todo-comments.nvim": { "branch": "main", "commit": "31e3c38ce9b29781e4422fc0322eb0a21f4e8668" },
   "tokyonight.nvim": { "branch": "main", "commit": "5da1b76e64daf4c5d410f06bcb6b9cb640da7dfd" },

dot_config/nvim/lua/custom/plugins/sidekick.lua

@@ -0,0 +1,55 @@
+-- AI-powered code assistant with CLI interface and edit suggestions.
+-- Provides keybindings for sending code context to AI and applying suggestions.
+
+---@module 'lazy'
+---@type LazySpec
+return {
+  'folke/sidekick.nvim',
+  opts = {
+    nes = { enabled = false },
+    cli = {
+      prompts = {
+        refactor = 'Please refactor {function} to be more maintainable',
+        security = 'Review {file} for security vulnerabilities',
+      },
+    },
+  },
+  keys = {
+    -- NES: jump to next edit, or apply if already on one
+    {
+      '<tab>',
+      function()
+        if require('sidekick').nes_jump_or_apply() then return end
+        return '<tab>' -- fall back to normal tab
+      end,
+      mode = { 'i', 'n' },
+      expr = true,
+      desc = 'Goto/Apply Next Edit Suggestion',
+    },
+
+    -- CLI window management
+    { '<c-.>', function() require('sidekick.cli').focus() end, mode = { 'n', 't', 'i', 'x' }, desc = 'Sidekick Focus' },
+    { '<leader>aa', function() require('sidekick.cli').toggle() end, desc = 'Sidekick Toggle CLI' },
+    { '<leader>as', function() require('sidekick.cli').select() end, desc = 'Select CLI Tool' },
+    { '<leader>ad', function() require('sidekick.cli').close() end, desc = 'Detach CLI Session' },
+
+    -- Send context to CLI
+    -- {this} resolves to {position} in a file, or appends {selection} otherwise
+    { '<leader>at', function() require('sidekick.cli').send { msg = '{this}' } end, mode = { 'x', 'n' }, desc = 'Send [T]his to Sidekick' },
+    { '<leader>aS', function() require('sidekick.cli').send { msg = '{selection}' } end, mode = { 'x' }, desc = 'Send [S]election to Sidekick' },
+    { '<leader>af', function() require('sidekick.cli').send { msg = '{function}' } end, desc = 'Send [F]unction to Sidekick' },
+    { '<leader>aF', function() require('sidekick.cli').send { msg = '{file}' } end, desc = 'Send [F]ile to Sidekick' },
+    { '<leader>ae', function() require('sidekick.cli').send { msg = '{diagnostics}' } end, desc = 'Send Diagnostics ([E]rrors) to Sidekick' },
+
+    -- Prompt shortcuts
+    { '<leader>ax', function() require('sidekick.cli').send { msg = 'explain {function}' } end, desc = 'E[x]plain Function' },
+    {
+      '<leader>aX',
+      function()
+        require('sidekick.cli').send { msg = 'fix the diagnostics in {function}. Here are the current buffer diagnostics for context:\n{diagnostics}' }
+      end,
+      desc = 'Fi[x] Diagnostics in Function',
+    },
+    { '<leader>ap', function() require('sidekick.cli').prompt() end, desc = 'Sidekick Select [P]rompt' },
+  },
+}

dot_config/nvim/lua/custom/plugins/snacks.lua

@@ -18,7 +18,19 @@ return {
     -- Only the picker and input are enabled for now.
     -- To try other snacks modules later (dashboard, indent, scoll, etc.)
     -- just add them here with `enabled = true`.
-    picker = { enabled = true },
+    picker = {
+      enabled = true,
+      actions = {
+        sidekick_send = function(...) return require('sidekick.cli.picker.snacks').send(...) end,
+      },
+      win = {
+        input = {
+          keys = {
+            ['<a-a>'] = { 'sidekick_send', mode = { 'n', 'i' } },
+          },
+        },
+      },
+    },
     input = { enabled = true },
   },
   keys = {

dot_config/nvim/lua/custom/plugins/treesitter-textobjects.lua

@@ -0,0 +1,11 @@
+-- nvim-treesitter-textobjects (main branch)
+-- Enables {function} and {class} context variables in sidekick.nvim prompts.
+-- No config needed - sidekick calls into the textobjects API directly.
+
+---@module 'lazy'
+---@type LazySpec
+return {
+  'nvim-treesitter/nvim-treesitter-textobjects',
+  branch = 'main',
+  lazy = true,
+}