Skip to main content

lean_ctx/tools/registered/
ctx_provider.rs

1use rmcp::model::Tool;
2use rmcp::ErrorData;
3use serde_json::{json, Map, Value};
4
5use crate::server::tool_trait::{McpTool, ToolContext, ToolOutput};
6use crate::tool_defs::tool_def;
7
8pub struct CtxProviderTool;
9
10impl McpTool for CtxProviderTool {
11    fn name(&self) -> &'static str {
12        "ctx_provider"
13    }
14
15    fn tool_def(&self) -> Tool {
16        tool_def(
17            "ctx_provider",
18            "External context providers (GitHub, GitLab, more). \
19             Use action=discover to list available providers. \
20             Use action=query with provider+resource for registry-based access. \
21             Legacy GitLab actions still supported. \
22             Set GITHUB_TOKEN or GITLAB_TOKEN to enable providers.",
23            json!({
24                "type": "object",
25                "properties": {
26                    "action": {
27                        "type": "string",
28                        "enum": [
29                            "discover",
30                            "query",
31                            "gitlab_issues",
32                            "gitlab_issue",
33                            "gitlab_mrs",
34                            "gitlab_pipelines"
35                        ],
36                        "description": "Provider action. 'discover' lists all providers. 'query' uses registry routing (requires provider+resource)."
37                    },
38                    "provider": {
39                        "type": "string",
40                        "description": "Provider ID for action=query (e.g. 'github', 'gitlab')"
41                    },
42                    "resource": {
43                        "type": "string",
44                        "description": "Resource type for action=query (e.g. 'issues', 'pull_requests', 'actions')"
45                    },
46                    "mode": {
47                        "type": "string",
48                        "enum": ["compact", "chunks"],
49                        "description": "Output mode for action=query. 'compact' (default) returns formatted text. 'chunks' returns ContentChunk metadata for BM25/embedding ingest."
50                    },
51                    "state": {
52                        "type": "string",
53                        "description": "Filter by state (open, closed, merged, all)"
54                    },
55                    "labels": {
56                        "type": "string",
57                        "description": "Comma-separated labels filter (GitLab)"
58                    },
59                    "iid": {
60                        "type": "integer",
61                        "description": "Issue/MR IID for single-item lookup (GitLab)"
62                    },
63                    "status": {
64                        "type": "string",
65                        "description": "Pipeline/Actions status filter (running, success, failed)"
66                    },
67                    "limit": {
68                        "type": "integer",
69                        "description": "Max results (default 20, max 100)"
70                    }
71                },
72                "required": ["action"]
73            }),
74        )
75    }
76
77    fn handle(
78        &self,
79        args: &Map<String, Value>,
80        ctx: &ToolContext,
81    ) -> Result<ToolOutput, ErrorData> {
82        let result = crate::tools::ctx_provider::handle(args, ctx);
83        Ok(ToolOutput::simple(result))
84    }
85}