use rmcp::model::Tool;
use rmcp::ErrorData;
use serde_json::{json, Map, Value};
use crate::server::tool_trait::{
get_int, get_str, get_str_array, McpTool, ToolContext, ToolOutput,
};
use crate::tool_defs::tool_def;
pub struct CtxMultiRepoTool;
impl McpTool for CtxMultiRepoTool {
fn name(&self) -> &'static str {
"ctx_multi_repo"
}
fn tool_def(&self) -> Tool {
tool_def(
"ctx_multi_repo",
"Multi-repo management: add/remove roots, cross-repo search with Reciprocal Rank Fusion (RRF). Enables searching across multiple project directories simultaneously.",
json!({
"type": "object",
"properties": {
"action": {
"type": "string",
"enum": ["add_root", "remove_root", "list_roots", "search", "status", "save_config"],
"description": "Action to perform"
},
"path": {
"type": "string",
"description": "Repository path (for add_root/remove_root)"
},
"alias": {
"type": "string",
"description": "Short alias for the repo (for add_root). Auto-derived from directory name if omitted."
},
"query": {
"type": "string",
"description": "Search query (for search action)"
},
"roots": {
"type": "array",
"items": { "type": "string" },
"description": "Filter search to specific roots by alias or path (for search). Omit to search all."
},
"max_results": {
"type": "integer",
"description": "Maximum results to return (default: 20)"
}
},
"required": ["action"]
}),
)
}
fn handle(
&self,
args: &Map<String, Value>,
_ctx: &ToolContext,
) -> Result<ToolOutput, ErrorData> {
let action = get_str(args, "action")
.ok_or_else(|| ErrorData::invalid_params("action is required", None))?;
let path = get_str(args, "path");
let alias = get_str(args, "alias");
let query = get_str(args, "query");
let roots_filter = get_str_array(args, "roots");
let max_results = get_int(args, "max_results").unwrap_or(20) as usize;
let (result, original_tokens) = crate::tools::ctx_multi_repo::handle(
&action,
path.as_deref(),
alias.as_deref(),
query.as_deref(),
roots_filter.as_deref(),
max_results,
);
if result.starts_with("ERROR:") {
return Err(ErrorData::invalid_params(result, None));
}
let sent = crate::core::tokens::count_tokens(&result);
let saved = original_tokens.saturating_sub(sent);
Ok(ToolOutput {
text: result,
original_tokens,
saved_tokens: saved,
mode: Some("multi_repo".to_string()),
path,
changed: action == "add_root" || action == "remove_root",
})
}
}