fix(server): reduce noisy request logging

server/src/__tests__/http-log-policy.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, it } from "vitest";
+import { shouldSilenceHttpSuccessLog } from "../middleware/http-log-policy.js";
+
+describe("shouldSilenceHttpSuccessLog", () => {
+  it("silences cached 304 responses", () => {
+    expect(shouldSilenceHttpSuccessLog("GET", "/api/issues/PAP-1383", 304)).toBe(true);
+  });
+
+  it("silences successful polling endpoints", () => {
+    expect(shouldSilenceHttpSuccessLog("GET", "/api/health", 200)).toBe(true);
+    expect(
+      shouldSilenceHttpSuccessLog(
+        "GET",
+        "/api/companies/5cbe79ee-acb3-4597-896e-7662742593cd/live-runs?minCount=3",
+        200,
+      ),
+    ).toBe(true);
+    expect(
+      shouldSilenceHttpSuccessLog(
+        "HEAD",
+        "/api/companies/5cbe79ee-acb3-4597-896e-7662742593cd/sidebar-badges",
+        200,
+      ),
+    ).toBe(true);
+  });
+
+  it("silences successful static asset requests", () => {
+    expect(shouldSilenceHttpSuccessLog("GET", "/@fs/Users/dotta/paperclip/ui/src/main.tsx", 200)).toBe(true);
+    expect(shouldSilenceHttpSuccessLog("GET", "/src/App.tsx?t=123", 200)).toBe(true);
+    expect(shouldSilenceHttpSuccessLog("GET", "/site.webmanifest", 200)).toBe(true);
+  });
+
+  it("keeps normal successful application requests", () => {
+    expect(shouldSilenceHttpSuccessLog("GET", "/api/issues/PAP-1383", 200)).toBe(false);
+    expect(shouldSilenceHttpSuccessLog("PATCH", "/api/issues/PAP-1383", 200)).toBe(false);
+  });
+
+  it("keeps failing requests visible", () => {
+    expect(shouldSilenceHttpSuccessLog("GET", "/api/health", 500)).toBe(false);
+    expect(shouldSilenceHttpSuccessLog("GET", "/@fs/Users/dotta/paperclip/ui/src/main.tsx", 404)).toBe(false);
+  });
+});

server/src/middleware/http-log-policy.ts

@@ -0,0 +1,42 @@
+const SILENCED_SUCCESS_METHODS = new Set(["GET", "HEAD"]);
+
+const SILENCED_SUCCESS_API_PATHS = [
+  /^\/api\/health(?:\/|$)/,
+  /^\/api\/companies\/[^/]+\/live-runs(?:\/|$)/,
+  /^\/api\/companies\/[^/]+\/sidebar-badges(?:\/|$)/,
+];
+
+const SILENCED_SUCCESS_STATIC_PREFIXES = [
+  "/@fs/",
+  "/@id/",
+  "/@react-refresh",
+  "/@vite/",
+  "/_plugins/",
+  "/assets/",
+  "/node_modules/",
+  "/src/",
+];
+
+const SILENCED_SUCCESS_STATIC_PATHS = new Set([
+  "/favicon.ico",
+  "/site.webmanifest",
+]);
+
+function normalizePath(url: string): string {
+  const trimmed = url.trim();
+  if (trimmed.length === 0) return "/";
+  const pathname = trimmed.split("?")[0]?.trim() ?? "/";
+  return pathname.length > 0 ? pathname : "/";
+}
+
+export function shouldSilenceHttpSuccessLog(method: string | undefined, url: string | undefined, statusCode: number): boolean {
+  if (statusCode >= 400) return false;
+  if (statusCode === 304) return true;
+  if (!method || !url) return false;
+  if (!SILENCED_SUCCESS_METHODS.has(method.toUpperCase())) return false;
+
+  const pathname = normalizePath(url);
+  if (SILENCED_SUCCESS_STATIC_PATHS.has(pathname)) return true;
+  if (SILENCED_SUCCESS_STATIC_PREFIXES.some((prefix) => pathname.startsWith(prefix))) return true;
+  return SILENCED_SUCCESS_API_PATHS.some((pattern) => pattern.test(pathname));
+}

server/src/middleware/logger.ts

@@ -4,6 +4,7 @@ import pino from "pino";
 import { pinoHttp } from "pino-http";
 import { readConfigFile } from "../config-file.js";
 import { resolveDefaultLogsDir, resolveHomeAwarePath } from "../home-paths.js";
+import { shouldSilenceHttpSuccessLog } from "./http-log-policy.js";
 
 function resolveServerLogDir(): string {
   const envOverride = process.env.PAPERCLIP_LOG_DIR?.trim();
@@ -47,6 +48,9 @@ export const logger = pino({
 export const httpLogger = pinoHttp({
   logger,
   customLogLevel(_req, res, err) {
+    if (shouldSilenceHttpSuccessLog(_req.method, _req.url, res.statusCode)) {
+      return "silent";
+    }
     if (err || res.statusCode >= 500) return "error";
     if (res.statusCode >= 400) return "warn";
     return "info";