From 2c308e5ef7bf801194db8f4e1b583d7497fc0ed3 Mon Sep 17 00:00:00 2001
From: Xavier Chanthavong <chanthavong.xavier@gmail.com>
Date: Sun, 3 Aug 2025 10:21:22 -0400
Subject: [PATCH 1/2] fix: functions are missing from parse_schema's return

I'll use the `file` function's schema as an example of the problem:

```lua
    schema = {
      type = 'object',
      required = { 'path' },
      properties = {
        path = {
          type = 'string',
          description = 'Path to file to include in chat context.',
          enum = function(source)
            local glob = utils.glob(source.cwd(), {
              max_count = 0,
            })
            return glob
          end,
        },
      },
    }
```

At the end of `parse_schema`, the schema is filtered:

```lua
  if schema then
    schema = filter_schema(schema, true)
  end

  return schema
```

This change leaves functions as is in the results table.
Prior to this, completing `#file:` in the picker would give me an input field to type my file path. This restores the behavior visible in the demo in the README where that file can be picked using `vim.ui.select`.
---
 lua/CopilotChat/functions.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lua/CopilotChat/functions.lua b/lua/CopilotChat/functions.lua
index 6e936a3d..377f6a5e 100644
--- a/lua/CopilotChat/functions.lua
+++ b/lua/CopilotChat/functions.lua
@@ -56,7 +56,9 @@ local function filter_schema(tbl, root)
   local result = {}
   for k, v in pairs(tbl) do
     if not utils.empty(v) then
-      if type(v) ~= 'function' and k ~= 'examples' then
+      if type(v) == 'function' then
+        result[k] = v
+      elseif k ~= 'examples' then
         result[k] = type(v) == 'table' and filter_schema(v) or v
       end
     end

From dfee352a4ef4d7fec2b3fbc87056f3c054dfab7b Mon Sep 17 00:00:00 2001
From: Xavier Chanthavong <chanthavong.xavier@gmail.com>
Date: Sun, 3 Aug 2025 10:27:35 -0400
Subject: [PATCH 2/2] fix: Remove redundant if

---
 lua/CopilotChat/functions.lua | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lua/CopilotChat/functions.lua b/lua/CopilotChat/functions.lua
index 377f6a5e..080507a3 100644
--- a/lua/CopilotChat/functions.lua
+++ b/lua/CopilotChat/functions.lua
@@ -56,9 +56,7 @@ local function filter_schema(tbl, root)
   local result = {}
   for k, v in pairs(tbl) do
     if not utils.empty(v) then
-      if type(v) == 'function' then
-        result[k] = v
-      elseif k ~= 'examples' then
+      if k ~= 'examples' then
         result[k] = type(v) == 'table' and filter_schema(v) or v
       end
     end