From 9671170d8390808924c7ddfbdaf3d15e1b9514f3 Mon Sep 17 00:00:00 2001
From: Mihamina RKTMB <mihamina.rakotomandimby@rktmb.org>
Date: Tue, 12 Aug 2025 10:55:01 +0300
Subject: [PATCH 1/3] use a function to dynamically look for sytem instructions

---
 lua/CopilotChat/config.lua |  3 ++-
 lua/CopilotChat/init.lua   | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/lua/CopilotChat/config.lua b/lua/CopilotChat/config.lua
index 48f5e96a..062215d1 100644
--- a/lua/CopilotChat/config.lua
+++ b/lua/CopilotChat/config.lua
@@ -14,7 +14,7 @@
 ---@field blend number?
 
 ---@class CopilotChat.config.Shared
----@field system_prompt string?
+---@field system_prompt string|fun(source: CopilotChat.source):string|nil
 ---@field model string?
 ---@field tools string|table<string>|nil
 ---@field sticky string|table<string>|nil
@@ -125,3 +125,4 @@ return {
   -- default mappings
   mappings = require('CopilotChat.config.mappings'),
 }
+
diff --git a/lua/CopilotChat/init.lua b/lua/CopilotChat/init.lua
index c97359dd..90235a5e 100644
--- a/lua/CopilotChat/init.lua
+++ b/lua/CopilotChat/init.lua
@@ -193,6 +193,27 @@ local function list_prompts()
   return prompts_to_use
 end
 
+--- Resolve system prompt - handle both string and function types
+---@param system_prompt string|function|nil
+---@param source CopilotChat.source?
+---@return string?
+local function resolve_system_prompt(system_prompt, source)
+  if not system_prompt then
+    return nil
+  end
+
+  if type(system_prompt) == 'function' then
+    local ok, result = pcall(system_prompt, source)
+    if not ok then
+      log.warn('Failed to resolve system prompt function: ' .. result)
+      return nil
+    end
+    return result
+  end
+
+  return system_prompt
+end
+
 --- Finish writing to chat buffer.
 ---@param start_of_chat boolean?
 local function finish(start_of_chat)
@@ -510,6 +531,9 @@ function M.resolve_prompt(prompt, config)
     config.system_prompt = prompts_to_use[config.system_prompt].system_prompt
   end
 
+  -- Resolve system prompt (handle functions)
+  config.system_prompt = resolve_system_prompt(config.system_prompt, state.source)
+
   if config.system_prompt then
     config.system_prompt = config.system_prompt:gsub('{OS_NAME}', jit.os)
     config.system_prompt = config.system_prompt:gsub('{LANGUAGE}', config.language)
@@ -1126,3 +1150,4 @@ function M.setup(config)
 end
 
 return M
+

From 32c5cf25fde622522e83742bbc0655f1ac0dc961 Mon Sep 17 00:00:00 2001
From: Mihamina RKTMB <mihamina.rakotomandimby@rktmb.org>
Date: Tue, 12 Aug 2025 23:21:31 +0300
Subject: [PATCH 2/3] remove unused parameter

---
 lua/CopilotChat/init.lua | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lua/CopilotChat/init.lua b/lua/CopilotChat/init.lua
index 90235a5e..795b68c8 100644
--- a/lua/CopilotChat/init.lua
+++ b/lua/CopilotChat/init.lua
@@ -195,15 +195,14 @@ end
 
 --- Resolve system prompt - handle both string and function types
 ---@param system_prompt string|function|nil
----@param source CopilotChat.source?
 ---@return string?
-local function resolve_system_prompt(system_prompt, source)
+local function resolve_system_prompt(system_prompt)
   if not system_prompt then
     return nil
   end
 
   if type(system_prompt) == 'function' then
-    local ok, result = pcall(system_prompt, source)
+    local ok, result = pcall(system_prompt)
     if not ok then
       log.warn('Failed to resolve system prompt function: ' .. result)
       return nil

From 8384c5062fb10865dbd481f59bdab8918360985f Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Tue, 12 Aug 2025 20:51:38 +0000
Subject: [PATCH 3/3] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 lua/CopilotChat/config.lua | 1 -
 lua/CopilotChat/init.lua   | 1 -
 2 files changed, 2 deletions(-)

diff --git a/lua/CopilotChat/config.lua b/lua/CopilotChat/config.lua
index fe2f3ec2..1f35f33f 100644
--- a/lua/CopilotChat/config.lua
+++ b/lua/CopilotChat/config.lua
@@ -125,4 +125,3 @@ return {
   -- default mappings
   mappings = require('CopilotChat.config.mappings'),
 }
-
diff --git a/lua/CopilotChat/init.lua b/lua/CopilotChat/init.lua
index 6b0a5fe1..8a660183 100644
--- a/lua/CopilotChat/init.lua
+++ b/lua/CopilotChat/init.lua
@@ -1148,4 +1148,3 @@ function M.setup(config)
 end
 
 return M
-