synaps_cli/tools/subagent/
status.rs

1//! SubagentStatusTool — poll the current state of a running or completed reactive subagent.
2//!
3//! Returns a lightweight snapshot: lifecycle status, last 500 chars of output,
4//! elapsed wall-clock seconds, and tool-use count. Non-blocking — always returns
5//! immediately regardless of the subagent's progress.
6
7use serde_json::{json, Value};
8use crate::{Result, RuntimeError};
9use super::super::{Tool, ToolContext};
10
11pub struct SubagentStatusTool;
12
13#[async_trait::async_trait]
14impl Tool for SubagentStatusTool {
15    fn name(&self) -> &str { "subagent_status" }
16
17    fn description(&self) -> &str {
18        "Poll the current state of a reactive subagent. Returns status \
19         (running/finished/timed_out/failed), the last 500 characters of output \
20         produced so far, elapsed time in seconds, and the number of tool calls \
21         made. Non-blocking — returns immediately."
22    }
23
24    fn parameters(&self) -> Value {
25        json!({
26            "type": "object",
27            "properties": {
28                "handle_id": {
29                    "type": "string",
30                    "description": "Handle ID returned by subagent_start (e.g. \"sa_3\")."
31                }
32            },
33            "required": ["handle_id"]
34        })
35    }
36
37    async fn execute(&self, params: Value, ctx: ToolContext) -> Result<String> {
38        let handle_id = params["handle_id"].as_str()
39            .ok_or_else(|| RuntimeError::Tool("Missing 'handle_id' parameter".to_string()))?
40            .to_string();
41
42        // ── Registry lookup ────────────────────────────────────────────────────
43
44        let registry = ctx.capabilities.subagent_registry.as_ref()
45            .ok_or_else(|| RuntimeError::Tool(
46                "SubagentRegistry not available on this ToolContext".to_string()
47            ))?;
48
49        let reg = registry.lock().unwrap();
50
51        let handle = reg.get(&handle_id)
52            .ok_or_else(|| RuntimeError::Tool(
53                format!("No subagent found with handle_id '{}'", handle_id)
54            ))?;
55
56        // ── Build response ─────────────────────────────────────────────────────
57        // Clone all needed data under the lock, then drop lock before char traversal
58        let full: String = handle.partial_output();
59        let agent_name = handle.agent_name.clone();
60        let status_str = handle.status().as_str().to_string();
61        let elapsed = handle.elapsed_secs();
62        let tool_count = handle.tool_log().len();
63        let _ = handle;
64        drop(reg);
65
66        let char_count = full.chars().count();
67        let partial_output: String = if char_count > 500 {
68            full.chars().skip(char_count - 500).collect()
69        } else {
70            full
71        };
72
73        Ok(json!({
74            "handle_id":      handle_id,
75            "agent_name":     agent_name,
76            "status":         status_str,
77            "partial_output": partial_output,
78            "elapsed_secs":   (elapsed * 10.0).round() / 10.0,
79            "tool_count":     tool_count
80        }).to_string())
81    }
82}
synaps_cli/tools/subagent/status.rs

synaps_cli/tools/subagent/
status.rs
