fix: Tool call improvements for Windows systems

Cargo.lock

@@ -3137,6 +3137,7 @@ dependencies = [
  "crossterm 0.28.1",
  "dirs",
  "duct",
+ "dunce",
  "fancy-regex",
  "futures-util",
  "fuzzy-matcher",

Cargo.toml

@@ -18,6 +18,7 @@ anyhow = "1.0.69"
 bytes = "1.4.0"
 clap = { version = "4.5.40", features = ["cargo", "derive", "wrap_help"] }
 dirs = "6.0.0"
+dunce = "1.0.5"
 futures-util = "0.3.29"
 inquire = "0.9.4"
 is-terminal = "0.4.9"

assets/functions/scripts/run-agent.py

@@ -50,6 +50,12 @@ def parse_raw_data(data):
 
 def parse_argv():
     agent_func = sys.argv[1]
+
+    tool_data_file = os.environ.get("LLM_TOOL_DATA_FILE")
+    if tool_data_file and os.path.isfile(tool_data_file):
+        with open(tool_data_file, "r", encoding="utf-8") as f:
+            agent_data = f.read()
+    else:
         agent_data = sys.argv[2]
 
     if (not agent_data) or (not agent_func):

assets/functions/scripts/run-agent.sh

@@ -14,7 +14,11 @@ main() {
 
 parse_argv() {
 		agent_func="$1"
+    if [[ -n "$LLM_TOOL_DATA_FILE" ]] && [[ -f "$LLM_TOOL_DATA_FILE" ]]; then
+      	agent_data="$(cat "$LLM_TOOL_DATA_FILE")"
+    else
 				agent_data="$2"
+    fi
     if [[ -z "$agent_data" ]] || [[ -z "$agent_func" ]]; then
         die "usage: ./{agent_name}.sh <agent-func> <agent-data>"
     fi
@@ -57,7 +61,6 @@ run() {
     if [[ "$OS" == "Windows_NT" ]]; then
         set -o igncr
         tools_path="$(cygpath -w "$tools_path")"
-        tool_data="$(echo "$tool_data" | sed 's/\\/\\\\/g')"
     fi
 
     jq_script="$(cat <<-'EOF'

assets/functions/scripts/run-tool.py

@@ -49,6 +49,11 @@ def parse_raw_data(data):
 
 
 def parse_argv():
+    tool_data_file = os.environ.get("LLM_TOOL_DATA_FILE")
+    if tool_data_file and os.path.isfile(tool_data_file):
+        with open(tool_data_file, "r", encoding="utf-8") as f:
+            return f.read()
+
     argv = sys.argv[:] + [None] * max(0, 2 - len(sys.argv))
 
     tool_data = argv[1]

assets/functions/scripts/run-tool.sh

@@ -13,7 +13,11 @@ main() {
 }
 
 parse_argv() {
+    if [[ -n "$LLM_TOOL_DATA_FILE" ]] && [[ -f "$LLM_TOOL_DATA_FILE" ]]; then
+        tool_data="$(cat "$LLM_TOOL_DATA_FILE")"
+    else
 				tool_data="$1"
+    fi
     if [[ -z "$tool_data" ]]; then
         die "usage: ./{function_name}.sh <tool-data>"
     fi
@@ -54,7 +58,6 @@ run() {
     if [[ "$OS" == "Windows_NT" ]]; then
         set -o igncr
         tool_path="$(cygpath -w "$tool_path")"
-        tool_data="$(echo "$tool_data" | sed 's/\\/\\\\/g')"
     fi
 
     jq_script="$(cat <<-'EOF'

docs/ENVIRONMENT-VARIABLES.md

@@ -108,5 +108,6 @@ can also pass the `--disable-log-colors` flag as well.
 
 ## Miscellaneous Variables
 | Environment Variable | Description                                                                                                                                                                                                                                                                                                                    | Default Value |
-|----------------------|--------------------------------------------------------------------------------------------------|---------------|
+|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
 | `AUTO_CONFIRM`       | Bypass all `guard_*` checks in the bash prompt helpers; useful for agent composition and routing                                                                                                                                                                                                                               |               |
+| `LLM_TOOL_DATA_FILE` | Set automatically by Loki on Windows. Points to a temporary file containing the JSON tool call data. <br>Tool scripts (`run-tool.sh`, `run-agent.sh`, etc.) read from this file instead of command-line args <br>to avoid JSON escaping issues when data passes through `cmd.exe` → bash. **Not intended to be set by users.** |               |

src/function/mod.rs

@@ -613,6 +613,7 @@ impl Functions {
             )
         })?;
         let content_template = unsafe { std::str::from_utf8_unchecked(&embedded_file.data) };
+        let to_script_path = |p: &str| -> String { p.replace('\\', "/") };
         let content = match binary_type {
             BinaryType::Tool(None) => {
                 let root_dir = Config::functions_dir();
@@ -622,8 +623,8 @@ impl Functions {
                 );
                 content_template
                     .replace("{function_name}", binary_name)
-                    .replace("{root_dir}", &root_dir.to_string_lossy())
+                    .replace("{root_dir}", &to_script_path(&root_dir.to_string_lossy()))
-                    .replace("{tool_path}", &tool_path)
+                    .replace("{tool_path}", &to_script_path(&tool_path))
             }
             BinaryType::Tool(Some(agent_name)) => {
                 let root_dir = Config::agent_data_dir(agent_name);
@@ -633,16 +634,19 @@ impl Functions {
                 );
                 content_template
                     .replace("{function_name}", binary_name)
-                    .replace("{root_dir}", &root_dir.to_string_lossy())
+                    .replace("{root_dir}", &to_script_path(&root_dir.to_string_lossy()))
-                    .replace("{tool_path}", &tool_path)
+                    .replace("{tool_path}", &to_script_path(&tool_path))
             }
             BinaryType::Agent => content_template
                 .replace("{agent_name}", binary_name)
-                .replace("{config_dir}", &Config::config_dir().to_string_lossy()),
+                .replace(
+                    "{config_dir}",
+                    &to_script_path(&Config::config_dir().to_string_lossy()),
+                ),
         }
         .replace(
             "{prompt_utils_file}",
-            &Config::bash_prompt_utils_file().to_string_lossy(),
+            &to_script_path(&Config::bash_prompt_utils_file().to_string_lossy()),
         );
         if binary_script_file.exists() {
             fs::remove_file(&binary_script_file)?;
@@ -666,7 +670,7 @@ impl Functions {
                     .join(".venv")
                     .join("Scripts")
                     .join("activate.bat");
-                let canonicalized_path = fs::canonicalize(&executable_path)?;
+                let canonicalized_path = dunce::canonicalize(&executable_path)?;
                 format!(
                     "call \"{}\" && {}",
                     canonicalized_path.to_string_lossy(),
@@ -677,19 +681,16 @@ impl Functions {
                 let executable_path = which::which("python")
                     .or_else(|_| which::which("python3"))
                     .map_err(|_| anyhow!("Python executable not found in PATH"))?;
-                let canonicalized_path = fs::canonicalize(&executable_path)?;
+                let canonicalized_path = dunce::canonicalize(&executable_path)?;
                 canonicalized_path.to_string_lossy().into_owned()
             }
             _ => bail!("Unsupported language: {}", language.as_ref()),
         };
         let bin_dir = binary_file
             .parent()
-            .expect("Failed to get parent directory of binary file")
+            .expect("Failed to get parent directory of binary file");
-            .canonicalize()?
+        let bin_dir = dunce::canonicalize(bin_dir)?.to_string_lossy().into_owned();
-            .to_string_lossy()
+        let wrapper_binary = dunce::canonicalize(&binary_script_file)?
-            .into_owned();
-        let wrapper_binary = binary_script_file
-            .canonicalize()?
             .to_string_lossy()
             .into_owned();
         let content = formatdoc!(
@@ -1117,6 +1118,20 @@ pub fn run_llm_function(
     #[cfg(windows)]
     let cmd_name = polyfill_cmd_name(&cmd_name, &bin_dirs);
 
+    #[cfg(windows)]
+    let cmd_args = {
+        let mut args = cmd_args;
+        if let Some(json_data) = args.pop() {
+            let tool_data_file = temp_file("-tool-data-", ".json");
+            fs::write(&tool_data_file, &json_data)?;
+            envs.insert(
+                "LLM_TOOL_DATA_FILE".into(),
+                tool_data_file.display().to_string(),
+            );
+        }
+        args
+    };
+
     envs.insert("CLICOLOR_FORCE".into(), "1".into());
     envs.insert("FORCE_COLOR".into(), "1".into());