deepseek/agent/builtin_tools/
write.rs1use async_trait::async_trait;
2use serde_json::{json, Value};
3
4use crate::agent::tool::{Tool, ToolDefinition};
5
6
7pub struct WriteTool;
8
9#[async_trait]
10impl Tool for WriteTool {
11 fn name(&self) -> &str {
12 "Write"
13 }
14
15 fn definition(&self) -> ToolDefinition {
16 ToolDefinition {
17 name: self.name().to_string(),
18 description:
19 "Create or overwrite a file. Parent directories are created automatically."
20 .into(),
21 parameters: json!({
22 "type": "object",
23 "properties": {
24 "path": { "type": "string" },
25 "content": { "type": "string" }
26 },
27 "required": ["path", "content"]
28 }),
29 }
30 }
31
32 async fn call_json(&self, args: Value) -> Result<String, String> {
33 let path = args
34 .get("path")
35 .and_then(Value::as_str)
36 .ok_or_else(|| "Write: missing string `path`".to_string())?;
37 let content = args
38 .get("content")
39 .and_then(Value::as_str)
40 .ok_or_else(|| "Write: missing string `content`".to_string())?;
41
42 if let Some(parent) = std::path::Path::new(path).parent() {
43 if !parent.as_os_str().is_empty() {
44 tokio::fs::create_dir_all(parent)
45 .await
46 .map_err(|e| format!("Write({path}): mkdir parent: {e}"))?;
47 }
48 }
49 tokio::fs::write(path, content)
50 .await
51 .map_err(|e| format!("Write({path}): {e}"))?;
52 Ok(format!("Wrote {} bytes to {path}", content.len()))
53 }
54}