lean_ctx/tools/registered/
ctx_task.rs

1use rmcp::ErrorData;
2use rmcp::model::Tool;
3use serde_json::{Map, Value, json};
4
5use crate::server::tool_trait::{McpTool, ToolContext, ToolOutput, get_str};
6use crate::tool_defs::tool_def;
7
8pub struct CtxTaskTool;
9
10impl McpTool for CtxTaskTool {
11    fn name(&self) -> &'static str {
12        "ctx_task"
13    }
14
15    fn tool_def(&self) -> Tool {
16        tool_def(
17            "ctx_task",
18            "Multi-agent task orchestration.\n\
19             WORKFLOW: action=create → action=list to review → action=update to change state.\n\
20             Actions: create|update|list|get|cancel|message|info.\n\
21             States: working|input-required|completed|failed|canceled.\n\
22             ANTIPATTERN: not for code execution — use ctx_shell or ctx_execute.",
23            json!({
24                "type": "object",
25                "properties": {
26                    "action": {
27                        "type": "string",
28                        "enum": ["create", "update", "list", "get", "cancel", "message", "info"],
29                        "description": "create|update|list|get|cancel|message|info"
30                    },
31                    "task_id": { "type": "string", "description": "Task ID (for update|get|cancel|message)" },
32                    "to_agent": { "type": "string", "description": "Target agent ID (for create)" },
33                    "description": { "type": "string", "description": "Task description (for create)" },
34                    "state": { "type": "string", "description": "New state (working|input-required|completed|failed|canceled)" },
35                    "message": { "type": "string", "description": "Message or reason" }
36                },
37                "required": ["action"]
38            }),
39        )
40    }
41
42    fn handle(
43        &self,
44        args: &Map<String, Value>,
45        ctx: &ToolContext,
46    ) -> Result<ToolOutput, ErrorData> {
47        let action = get_str(args, "action").unwrap_or_else(|| "list".to_string());
48        let current_agent_id = ctx
49            .agent_id
50            .as_ref()
51            .map(|a| a.blocking_read().clone())
52            .unwrap_or_default();
53        let task_id = get_str(args, "task_id");
54        let to_agent = get_str(args, "to_agent");
55        let description = get_str(args, "description");
56        let state = get_str(args, "state");
57        let message = get_str(args, "message");
58
59        let result = crate::tools::ctx_task::handle(
60            &action,
61            current_agent_id.as_deref(),
62            task_id.as_deref(),
63            to_agent.as_deref(),
64            description.as_deref(),
65            state.as_deref(),
66            message.as_deref(),
67        );
68
69        Ok(ToolOutput {
70            text: result,
71            original_tokens: 0,
72            saved_tokens: 0,
73            mode: Some(action),
74            path: None,
75            changed: false,
76            shell_outcome: None,
77            content_blocks: None,
78        })
79    }
80}
lean_ctx/tools/registered/ctx_task.rs

lean_ctx/tools/registered/
ctx_task.rs
