feat: package Pi extensions as Bun workspaces

extensions/workflow/ui-policy.test.ts

@@ -0,0 +1,107 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import type { WorkflowFacts } from "./domain.ts";
+import { enforceUiImpact } from "./ui-policy.ts";
+
+function facts(overrides: Partial<WorkflowFacts> = {}): WorkflowFacts {
+  return {
+    stage: "design",
+    taskKind: "feature",
+    requestTerms: [],
+    candidatePaths: [],
+    languages: ["typescript"],
+    tags: [],
+    riskTags: [],
+    ...overrides,
+  };
+}
+
+test("objective non-trivial UI signals cannot be downgraded", () => {
+  const result = enforceUiImpact({
+    plannerImpact: "minor",
+    plannerEvidence: ["Planner expected a small change"],
+    affectedSurfaces: ["Application shell"],
+    facts: facts({ requestTerms: ["redesign", "navigation"] }),
+  });
+  assert.equal(result.impact, "non-trivial");
+  assert.equal(result.objectiveImpact, "non-trivial");
+  assert.ok(result.evidence.some((entry) => entry.includes("redesign")));
+});
+
+test("layout paths and accessibility evidence require prototypes", () => {
+  const result = enforceUiImpact({
+    plannerImpact: "none",
+    plannerEvidence: [],
+    affectedSurfaces: [],
+    facts: facts({
+      candidatePaths: ["src/routes/layout.svelte"],
+      riskTags: ["accessibility"],
+    }),
+  });
+  assert.equal(result.impact, "non-trivial");
+  assert.equal(result.evidence.length, 2);
+});
+
+test("common pages, forms, modals, sidebars, and settings changes cannot bypass prototypes", () => {
+  for (const signal of ["page", "form", "modal", "sidebar", "settings"]) {
+    const result = enforceUiImpact({
+      plannerImpact: "minor",
+      plannerEvidence: [],
+      affectedSurfaces: [],
+      facts: facts({ requestTerms: ["add", signal] }),
+    });
+    assert.equal(result.impact, "non-trivial", signal);
+  }
+  assert.equal(
+    enforceUiImpact({
+      plannerImpact: "minor",
+      plannerEvidence: [],
+      affectedSurfaces: [],
+      facts: facts({ candidatePaths: ["src/routes/account/+page.svelte"] }),
+    }).impact,
+    "non-trivial",
+  );
+});
+
+test("backend workflow terminology does not imply a UI prototype", () => {
+  const result = enforceUiImpact({
+    plannerImpact: "none",
+    plannerEvidence: ["Backend orchestration only"],
+    affectedSurfaces: [],
+    facts: facts({
+      requestTerms: ["workflow", "queue"],
+      candidatePaths: ["src/server/workflow.ts"],
+    }),
+  });
+  assert.equal(result.impact, "none");
+});
+
+test("configuration files named settings do not imply a UI prototype", () => {
+  const result = enforceUiImpact({
+    plannerImpact: "none",
+    plannerEvidence: ["Configuration inventory only"],
+    affectedSurfaces: [],
+    facts: facts({
+      candidatePaths: [
+        "/home/user/.pi/agent/settings.json",
+        "config/settings.yaml",
+      ],
+      tags: ["configuration", "security"],
+    }),
+  });
+  assert.equal(result.impact, "none");
+  assert.equal(result.objectiveImpact, "none");
+});
+
+test("generic frontend evidence does not inflate a minor change", () => {
+  const result = enforceUiImpact({
+    plannerImpact: "minor",
+    plannerEvidence: ["Adds one field"],
+    affectedSurfaces: ["Dashboard"],
+    facts: facts({
+      candidatePaths: ["src/routes/dashboard.ts"],
+      tags: ["frontend", "ui"],
+    }),
+  });
+  assert.equal(result.impact, "minor");
+});