Stop Tango garbage from polluting Opportunity Intelligence

api-server/src/lib/providers/__tests__/samGovQuality.test.ts

@@ -29,8 +29,8 @@ describe("SAM.gov bid-ready query policy", () => {
     );
   });
 
-  it("uses one broad structured retrieval when no query is supplied", () => {
-    assert.deepEqual(buildSamGovTitleQueries(), []);
+  it("uses one focused occupational-health title request when no query is supplied", () => {
+    assert.deepEqual(buildSamGovTitleQueries(), ["occupational health"]);
   });
 
   it("accepts only active bid notices with a future response deadline", () => {
@@ -61,4 +61,4 @@ describe("SAM.gov bid-ready query policy", () => {
       false,
     );
   });
-});
+});

api-server/src/lib/providers/__tests__/tangoPrecision.test.ts

@@ -0,0 +1,89 @@
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import { passesTangoOccumedPrecisionGate } from "../tango";
+
+describe("Tango Occu-Med precision gate", () => {
+  it("keeps core occupational-health scopes", () => {
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "RFP for occupational health services including employee physical examinations, drug testing, audiograms, spirometry, and medical surveillance.",
+      ),
+      true,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "NFPA 1582 firefighter medical examinations and annual fitness-for-duty services.",
+      ),
+      true,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Respirator medical evaluation and fit testing for public works employees under the respiratory protection program.",
+      ),
+      true,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Pre-employment physical examinations and DOT drug and alcohol testing for agency applicants and employees.",
+      ),
+      true,
+    );
+  });
+
+  it("keeps generic clinical components only when tied to workforce context", () => {
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Audiometric testing, spirometry and vaccinations for employees assigned to hazardous worksites.",
+      ),
+      true,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "TB testing and immunization services for contractor personnel before deployment.",
+      ),
+      true,
+    );
+  });
+
+  it("rejects ordinary patient and community medical procurements", () => {
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Community vaccination services for residents and the general public.",
+      ),
+      false,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Hospital seeks laboratory testing and medical screening services for clinic patients.",
+      ),
+      false,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Student health TB testing and immunization program for university students.",
+      ),
+      false,
+    );
+  });
+
+  it("rejects unrelated federal solicitations containing incidental medical words", () => {
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Construction contract. Contractor must maintain a drug testing policy for its own staff.",
+      ),
+      false,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "IT support services. Personnel must complete a medical screening before receiving site access.",
+      ),
+      false,
+    );
+    assert.equal(
+      passesTangoOccumedPrecisionGate(
+        "Purchase of laboratory testing equipment and medical supplies.",
+      ),
+      false,
+    );
+  });
+});

api-server/src/lib/providers/samGovQuality.ts

@@ -68,6 +68,7 @@ const SAM_TITLE_PROFILES = [
 const CUSTOM_QUERY_NOISE =
   /\b(?:active|bid|bids|city|contract|contracts|county|due|federal|find|government|open|opportunities|opportunity|procurement|proposal|proposals|request|rfp|rfq|services?|solicitation|state)\b/gi;
 const BID_READY_TYPE_RE = /^(?:solicitation|combined synopsis\/solicitation)$/i;
+const DEFAULT_AUTONOMOUS_SAM_TITLE = "occupational health";
 
 export function buildSamGovTitleQueries(keywords?: string): string[] {
   const normalized = (keywords ?? "")
@@ -76,9 +77,10 @@ export function buildSamGovTitleQueries(keywords?: string): string[] {
     .replace(/[^a-z0-9]+/g, " ")
     .replace(/\s+/g, " ")
     .trim();
-  // Blank autonomous runs retrieve broadly once; the Occu-Med ontology then
-  // classifies notices locally instead of spending a call per service title.
-  if (!normalized) return [];
+  // Keep autonomous SAM usage to one API call, but make that call useful.
+  // A broad blank search returns thin metadata for many unrelated notices and
+  // routinely produces zero usable Occu-Med records after local classification.
+  if (!normalized) return [DEFAULT_AUTONOMOUS_SAM_TITLE];
 
   const matched = SAM_TITLE_PROFILES.filter((profile) =>
     profile.aliases.some((alias) => normalized.includes(alias)),
@@ -111,4 +113,4 @@ export function isBidReadySamOpportunity(
     : null;
   if (!deadline || Number.isNaN(deadline.getTime())) return false;
   return deadline.getTime() > now.getTime();
-}
+}