lean_ctx/tools/registered/
ctx_smells.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 CtxSmellsTool;
9
10impl McpTool for CtxSmellsTool {
11    fn name(&self) -> &'static str {
12        "ctx_smells"
13    }
14
15    fn tool_def(&self) -> Tool {
16        tool_def(
17            "ctx_smells",
18            "WORKFLOW: rules (list detectors) → scan (run on project).\n\
19             Code smell detection: dead_code, long_function, god_file, complexity, etc.\n\
20             rule='name' or path='file' to filter.\n\
21             ANTIPATTERN: NOT a linter — no style/format enforcement.",
22            json!({
23                "type": "object",
24                "properties": {
25                    "action": {
26                        "type": "string",
27                        "enum": ["scan", "summary", "rules", "file"],
28                        "description": "scan|summary|rules|file"
29                    },
30                    "rule": {
31                        "type": "string",
32                        "description": "Filter by rule name (for scan)"
33                    },
34                    "path": {
35                        "type": "string",
36                        "description": "Filter by file path"
37                    },
38                    "root": {
39                        "type": "string",
40                        "description": "Project root"
41                    },
42                    "format": {
43                        "type": "string",
44                        "description": "Output format (text|json)"
45                    }
46                }
47            }),
48        )
49    }
50
51    fn handle(
52        &self,
53        args: &Map<String, Value>,
54        ctx: &ToolContext,
55    ) -> Result<ToolOutput, ErrorData> {
56        let action = get_str(args, "action").unwrap_or_else(|| "summary".to_string());
57        let rule = get_str(args, "rule");
58        let path = get_str(args, "path");
59        let format = get_str(args, "format");
60        let root = if let Some(p) = ctx
61            .resolved_path("root")
62            .or(ctx.resolved_path("project_root"))
63        {
64            p
65        } else if let Some(err) = ctx.path_error("root").or(ctx.path_error("project_root")) {
66            return Err(ErrorData::invalid_params(format!("root: {err}"), None));
67        } else {
68            &ctx.project_root
69        };
70
71        let result = crate::tools::ctx_smells::handle(
72            &action,
73            rule.as_deref(),
74            path.as_deref(),
75            root,
76            format.as_deref(),
77        );
78
79        Ok(ToolOutput::simple(result))
80    }
81}
lean_ctx/tools/registered/ctx_smells.rs

lean_ctx/tools/registered/
ctx_smells.rs
