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 CtxDedupTool;
impl McpTool for CtxDedupTool {
fn name(&self) -> &'static str {
"ctx_dedup"
}
fn tool_def(&self) -> Tool {
tool_def(
"ctx_dedup",
"WORKFLOW: action=analyze first to find shared imports/code across files, then action=apply to register dedup hints for ctx_read output.\n\
ANTIPATTERN: NOT for permanent dedup — only compression hints for read output.",
json!({
"type": "object",
"properties": {
"action": {
"type": "string",
"description": "analyze (find shared) | apply (register dedup)",
"default": "analyze"
}
}
}),
)
}
fn handle(
&self,
args: &Map<String, Value>,
ctx: &ToolContext,
) -> Result<ToolOutput, ErrorData> {
let action = get_str(args, "action").unwrap_or_default();
let cache = ctx
.cache
.as_ref()
.ok_or_else(|| ErrorData::internal_error("cache not available", None))?;
let result = if action == "apply" {
let Some(mut guard) = crate::server::bounded_lock::write(cache, "ctx_dedup:apply")
else {
return Ok(ToolOutput::simple(
"[dedup unavailable — cache busy, retry]".to_string(),
));
};
crate::tools::ctx_dedup::handle_action(&mut guard, &action)
} else {
let Some(guard) = crate::server::bounded_lock::read(cache, "ctx_dedup:status") else {
return Ok(ToolOutput::simple(
"[dedup status unavailable — cache busy, retry]".to_string(),
));
};
crate::tools::ctx_dedup::handle(&guard)
};
Ok(ToolOutput::simple(result))
}
}