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synaps_cli/tools/shell/
start.rs

1//! `shell_start` tool — create a new interactive shell session.
2
3use serde_json::{json, Value};
4use crate::{Result, RuntimeError};
5use crate::tools::{Tool, ToolContext};
6
7pub struct ShellStartTool;
8
9#[async_trait::async_trait]
10impl Tool for ShellStartTool {
11    fn name(&self) -> &str { "shell_start" }
12
13    fn description(&self) -> &str {
14        "Start a new interactive shell session with a PTY. Returns a session ID and the initial output. Use shell_send to interact and shell_end to close."
15    }
16
17    fn parameters(&self) -> Value {
18        json!({
19            "type": "object",
20            "properties": {
21                "command": {
22                    "type": "string",
23                    "description": "Command to run (default: user's default shell). Examples: 'bash', 'python3', 'ssh user@host'"
24                },
25                "working_directory": {
26                    "type": "string",
27                    "description": "Working directory for the session (default: current directory)"
28                },
29                "env": {
30                    "type": "object",
31                    "description": "Additional environment variables as key-value pairs",
32                    "additionalProperties": { "type": "string" }
33                },
34                "rows": {
35                    "type": "integer",
36                    "description": "Terminal rows (default: from config, fallback 24)"
37                },
38                "cols": {
39                    "type": "integer",
40                    "description": "Terminal columns (default: from config, fallback 80)"
41                },
42                "readiness_timeout_ms": {
43                    "type": "integer",
44                    "description": "Override output readiness timeout for this session (ms)"
45                },
46                "idle_timeout": {
47                    "type": "integer",
48                    "description": "Override idle timeout for this session (seconds)"
49                }
50            },
51            "required": []
52        })
53    }
54
55    async fn execute(&self, params: Value, ctx: ToolContext) -> Result<String> {
56        let mgr = ctx.capabilities.session_manager.as_ref()
57            .ok_or_else(|| RuntimeError::Tool("Shell sessions not available".into()))?;
58        
59        let command = params["command"].as_str().map(|s| s.to_string());
60        let working_directory = params["working_directory"].as_str().map(|s| s.to_string());
61        let rows = params["rows"].as_u64().map(|r| r as u16);
62        let cols = params["cols"].as_u64().map(|c| c as u16);
63        let readiness_timeout_ms = params["readiness_timeout_ms"].as_u64();
64        let idle_timeout = params["idle_timeout"].as_u64();
65        
66        let env = params["env"].as_object()
67            .map(|obj| obj.iter()
68                .filter_map(|(k, v)| v.as_str().map(|s| (k.clone(), s.to_string())))
69                .collect())
70            .unwrap_or_default();
71        
72        let opts = super::SessionOpts {
73            command, working_directory, env, rows, cols,
74            readiness_timeout_ms, idle_timeout,
75        };
76        
77        let (session_id, output, status) = mgr.create_session(opts, ctx.channels.tx_delta.as_ref()).await?;
78        
79        let mut result = format!("[Session {} | {}]\n", session_id, status);
80        if !output.is_empty() {
81            result.push_str(&output);
82        }
83        Ok(result)
84    }
85}