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compliance-scanner-agent/compliance-mcp/src/tools/oscal.rs
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feat(oscal): emit unmapped findings as-is + MCP oscal_assessment tool (#214)
2026-07-21 09:48:37 +00:00

52 lines
1.6 KiB
Rust

//! OSCAL assessment MCP tool.
//!
//! Emits a standard OSCAL assessment-results document for a repo's findings —
//! what breakpilot's scanner MCP client pulls. Mapped findings target their
//! compliance controls (via the stamped `control_refs`); unmapped findings are
//! reported as-is, so nothing is lost.
use mongodb::bson::doc;
use rmcp::{model::*, ErrorData as McpError};
use schemars::JsonSchema;
use serde::Deserialize;
use compliance_core::models::oscal_assessment::assess;
use compliance_core::models::Finding;
use crate::database::Database;
#[derive(Debug, Deserialize, JsonSchema)]
pub struct OscalAssessmentParams {
/// Repository / target id to assess.
pub repo_id: String,
}
pub async fn oscal_assessment(
db: &Database,
params: OscalAssessmentParams,
) -> Result<CallToolResult, McpError> {
let mut cursor = db
.findings()
.find(doc! { "repo_id": &params.repo_id })
.await
.map_err(|e| McpError::internal_error(format!("DB error: {e}"), None))?;
let mut findings: Vec<Finding> = Vec::new();
while cursor
.advance()
.await
.map_err(|e| McpError::internal_error(format!("cursor error: {e}"), None))?
{
findings.push(
cursor
.deserialize_current()
.map_err(|e| McpError::internal_error(format!("deserialize error: {e}"), None))?,
);
}
let document = assess(&findings, chrono::Utc::now());
let json = serde_json::to_string_pretty(&document)
.map_err(|e| McpError::internal_error(format!("json error: {e}"), None))?;
Ok(CallToolResult::success(vec![Content::text(json)]))
}