lean_ctx/tools/registered/
ctx_dedup.rs1use 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 CtxDedupTool;
9
10impl McpTool for CtxDedupTool {
11 fn name(&self) -> &'static str {
12 "ctx_dedup"
13 }
14
15 fn tool_def(&self) -> Tool {
16 tool_def(
17 "ctx_dedup",
18 "WORKFLOW: action=analyze first to find shared imports/code across files, then action=apply to register dedup hints for ctx_read output.\n\
19 ANTIPATTERN: NOT for permanent dedup — only compression hints for read output.",
20 json!({
21 "type": "object",
22 "properties": {
23 "action": {
24 "type": "string",
25 "description": "analyze (find shared) | apply (register dedup)",
26 "default": "analyze"
27 }
28 }
29 }),
30 )
31 }
32
33 fn handle(
34 &self,
35 args: &Map<String, Value>,
36 ctx: &ToolContext,
37 ) -> Result<ToolOutput, ErrorData> {
38 let action = get_str(args, "action").unwrap_or_default();
39 let cache = ctx
40 .cache
41 .as_ref()
42 .ok_or_else(|| ErrorData::internal_error("cache not available", None))?;
43 let result = if action == "apply" {
44 let Some(mut guard) = crate::server::bounded_lock::write(cache, "ctx_dedup:apply")
45 else {
46 return Ok(ToolOutput::simple(
47 "[dedup unavailable — cache busy, retry]".to_string(),
48 ));
49 };
50 crate::tools::ctx_dedup::handle_action(&mut guard, &action)
51 } else {
52 let Some(guard) = crate::server::bounded_lock::read(cache, "ctx_dedup:status") else {
53 return Ok(ToolOutput::simple(
54 "[dedup status unavailable — cache busy, retry]".to_string(),
55 ));
56 };
57 crate::tools::ctx_dedup::handle(&guard)
58 };
59 Ok(ToolOutput::simple(result))
60 }
61}