[codex] Fix make-pdf browse resolution

make-pdf/src/browseClient.ts

@@ -10,9 +10,11 @@
  * Binary resolution order (Codex round 2 #4):
  *   1. $BROWSE_BIN env override
  *   2. sibling dir: dirname(argv[0])/../browse/dist/browse
- *   3. ~/.claude/skills/gstack/browse/dist/browse
- *   4. PATH lookup: `browse`
- *   5. error with setup hint
+ *   3. ~/.agents/skills/gstack/browse/dist/browse
+ *   4. ~/.codex/skills/gstack/browse/dist/browse
+ *   5. ~/.claude/skills/gstack/browse/dist/browse
+ *   6. PATH lookup: `browse`
+ *   7. error with setup hint
  */
 
 import { execFileSync } from "node:child_process";
@@ -74,10 +76,17 @@ export function resolveBrowseBin(): string {
     if (isExecutable(candidate)) return candidate;
   }
 
-  // Global install
+  // Global installs. Prefer the active Codex/agents install before older
+  // Claude installs that may still exist on disk.
   const home = os.homedir();
-  const globalPath = path.join(home, ".claude/skills/gstack/browse/dist/browse");
-  if (isExecutable(globalPath)) return globalPath;
+  const globalCandidates = [
+    path.join(home, ".agents/skills/gstack/browse/dist/browse"),
+    path.join(home, ".codex/skills/gstack/browse/dist/browse"),
+    path.join(home, ".claude/skills/gstack/browse/dist/browse"),
+  ];
+  for (const candidate of globalCandidates) {
+    if (isExecutable(candidate)) return candidate;
+  }
 
   // PATH lookup
   try {
@@ -97,7 +106,7 @@ export function resolveBrowseBin(): string {
       "Tried:",
       `  - $BROWSE_BIN (${envOverride || "unset"})`,
       `  - sibling: ${siblingCandidates.join(", ")}`,
-      `  - global: ${globalPath}`,
+      `  - global: ${globalCandidates.join(", ")}`,
       "  - PATH: `browse`",
       "",
       "To fix: run gstack setup from the gstack repo:",
@@ -111,6 +120,8 @@ export function resolveBrowseBin(): string {
 
 function isExecutable(p: string): boolean {
   try {
+    const stat = fs.statSync(p);
+    if (!stat.isFile()) return false;
     fs.accessSync(p, fs.constants.X_OK);
     return true;
   } catch {

make-pdf/src/orchestrator.ts

@@ -72,7 +72,7 @@ export async function generate(opts: GenerateOptions): Promise<string> {
   }
 
   const outputPath = path.resolve(
-    opts.output ?? path.join(os.tmpdir(), `${deriveSlug(input)}.pdf`),
+    opts.output ?? path.join(defaultOutputDir(), `${deriveSlug(input)}.pdf`),
   );
 
   // Stage 1: read markdown
@@ -216,6 +216,13 @@ function tmpFile(ext: string): string {
   return path.join(os.tmpdir(), `make-pdf-${process.pid}-${hash}.${ext}`);
 }
 
+function defaultOutputDir(): string {
+  if (process.platform === "darwin" && fs.existsSync("/private/tmp")) {
+    return "/private/tmp";
+  }
+  return os.tmpdir();
+}
+
 function tryOpen(pathOrUrl: string): void {
   const platform = process.platform;
   const cmd = platform === "darwin" ? "open" :

make-pdf/src/setup.ts

@@ -3,7 +3,7 @@
  *
  * Flow (per the CEO plan CLI UX spec):
  *   1. Verify browse binary exists and responds
- *   2. Verify Chromium launches via $B goto about:blank
+ *   2. Verify Chromium launches via a dedicated blank tab
  *   3. Verify pdftotext is installed (warn, don't fail)
  *   4. Generate a smoke-test PDF from an inline 2-paragraph fixture
  *   5. Open it
@@ -32,11 +32,11 @@ export async function runSetup(): Promise<void> {
     process.exit(4);
   }
 
-  // 2. Chromium smoke (navigate a dedicated tab to about:blank)
+  // 2. Chromium smoke (open a dedicated blank tab)
   process.stderr.write("  [2/5] Launching Chromium...");
   let chromiumTab: number | null = null;
   try {
-    chromiumTab = browseClient.newtab("about:blank");
+    chromiumTab = browseClient.newtab();
     process.stderr.write(` OK (tab ${chromiumTab})\n`);
   } catch (err: any) {
     process.stderr.write(" FAIL\n");
@@ -78,7 +78,7 @@ export async function runSetup(): Promise<void> {
     "",
   ].join("\n");
   const fixturePath = path.join(os.tmpdir(), `make-pdf-smoke-${process.pid}.md`);
-  const outPath = path.join(os.tmpdir(), `make-pdf-smoke-${process.pid}.pdf`);
+  const outPath = path.join(defaultOutputDir(), `make-pdf-smoke-${process.pid}.pdf`);
   fs.writeFileSync(fixturePath, fixture, "utf8");
 
   try {
@@ -108,3 +108,10 @@ export async function runSetup(): Promise<void> {
     "",
   ].join("\n"));
 }
+
+function defaultOutputDir(): string {
+  if (process.platform === "darwin" && fs.existsSync("/private/tmp")) {
+    return "/private/tmp";
+  }
+  return os.tmpdir();
+}

make-pdf/test/browseClient.test.ts

@@ -5,6 +5,9 @@
  */
 
 import { describe, expect, test } from "bun:test";
+import * as fs from "node:fs";
+import * as os from "node:os";
+import * as path from "node:path";
 
 import { BrowseClientError } from "../src/types";
 import { resolveBrowseBin } from "../src/browseClient";
@@ -57,6 +60,36 @@ describe("resolveBrowseBin", () => {
       }
     }
   });
+
+  test("does not treat executable directories as binaries", () => {
+    const originalEnv = process.env.BROWSE_BIN;
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), "make-pdf-browse-dir-"));
+    fs.chmodSync(dir, 0o755);
+    process.env.BROWSE_BIN = dir;
+
+    try {
+      let resolved: string | null = null;
+      let thrown: any = null;
+      try {
+        resolved = resolveBrowseBin();
+      } catch (err) {
+        thrown = err;
+      }
+
+      expect(resolved).not.toBe(dir);
+      if (thrown) {
+        expect(thrown).toBeInstanceOf(BrowseClientError);
+        expect(thrown.message).toContain("browse binary not found");
+      }
+    } finally {
+      if (originalEnv === undefined) {
+        delete process.env.BROWSE_BIN;
+      } else {
+        process.env.BROWSE_BIN = originalEnv;
+      }
+      fs.rmSync(dir, { recursive: true, force: true });
+    }
+  });
 });
 
 describe("BrowseClientError", () => {