use rmcp::ErrorData;
use rmcp::model::Tool;
use serde_json::{Map, Value, json};
use crate::server::tool_trait::{McpTool, ToolContext, ToolOutput, get_str};
use crate::tool_defs::tool_def;
pub struct CtxSmellsTool;
impl McpTool for CtxSmellsTool {
fn name(&self) -> &'static str {
"ctx_smells"
}
fn tool_def(&self) -> Tool {
tool_def(
"ctx_smells",
"WORKFLOW: rules (list detectors) → scan (run on project).\n\
Code smell detection: dead_code, long_function, god_file, complexity, etc.\n\
rule='name' or path='file' to filter.\n\
ANTIPATTERN: NOT a linter — no style/format enforcement.",
json!({
"type": "object",
"properties": {
"action": {
"type": "string",
"enum": ["scan", "summary", "rules", "file"],
"description": "scan|summary|rules|file"
},
"rule": {
"type": "string",
"description": "Filter by rule name (for scan)"
},
"path": {
"type": "string",
"description": "Filter by file path"
},
"root": {
"type": "string",
"description": "Project root"
},
"format": {
"type": "string",
"description": "Output format (text|json)"
}
}
}),
)
}
fn handle(
&self,
args: &Map<String, Value>,
ctx: &ToolContext,
) -> Result<ToolOutput, ErrorData> {
let action = get_str(args, "action").unwrap_or_else(|| "summary".to_string());
let rule = get_str(args, "rule");
let path = get_str(args, "path");
let format = get_str(args, "format");
let root = if let Some(p) = ctx
.resolved_path("root")
.or(ctx.resolved_path("project_root"))
{
p
} else if let Some(err) = ctx.path_error("root").or(ctx.path_error("project_root")) {
return Err(ErrorData::invalid_params(format!("root: {err}"), None));
} else {
&ctx.project_root
};
let result = crate::tools::ctx_smells::handle(
&action,
rule.as_deref(),
path.as_deref(),
root,
format.as_deref(),
);
Ok(ToolOutput::simple(result))
}
}