lean_ctx/tools/registered/
ctx_plan.rs

1use rmcp::model::Tool;
2use rmcp::ErrorData;
3use serde_json::{json, Map, Value};
4
5use crate::server::tool_trait::{McpTool, ToolContext, ToolOutput};
6use crate::tool_defs::tool_def;
7
8pub struct CtxPlanTool;
9
10impl McpTool for CtxPlanTool {
11    fn name(&self) -> &'static str {
12        "ctx_plan"
13    }
14
15    fn tool_def(&self) -> Tool {
16        tool_def(
17            "ctx_plan",
18            "Context planning (CFT). Computes optimal context plan with Phi scoring, budget allocation, and policy-driven view selection.",
19            json!({
20                "type": "object",
21                "properties": {
22                    "task": { "type": "string", "description": "Task description" },
23                    "budget": { "type": "integer", "description": "Token budget (default: 12000)" },
24                    "profile": { "type": "string", "description": "ultra_lean|balanced|forensic" }
25                },
26                "required": ["task"]
27            }),
28        )
29    }
30
31    fn handle(
32        &self,
33        args: &Map<String, Value>,
34        ctx: &ToolContext,
35    ) -> Result<ToolOutput, ErrorData> {
36        let ledger = crate::core::context_ledger::ContextLedger::load();
37
38        let root = if let Some(ref session_lock) = ctx.session {
39            let session = tokio::task::block_in_place(|| session_lock.blocking_read());
40            session.project_root.clone().unwrap_or_default()
41        } else {
42            ctx.project_root.clone()
43        };
44
45        let policies = crate::core::context_policies::PolicySet::load_project(
46            &std::path::PathBuf::from(&root),
47        );
48        let result = crate::tools::ctx_plan::handle(Some(args), &ledger, &policies);
49
50        Ok(ToolOutput::simple(result))
51    }
52}
lean_ctx/tools/registered/ctx_plan.rs

lean_ctx/tools/registered/
ctx_plan.rs
