diff --git a/packages/web/server/lib/opencode/env-runtime.js b/packages/web/server/lib/opencode/env-runtime.js
index 34043275..c14557bd 100644
--- a/packages/web/server/lib/opencode/env-runtime.js
+++ b/packages/web/server/lib/opencode/env-runtime.js
@@ -455,10 +455,10 @@ export const createOpenCodeEnvRuntime = (deps) => {
       return null;
     }
 
-// Fast path: 'command -v' via plain sh (no login shell, no .zshrc sourcing).
-// This is much faster than the full login shell probe below and catches
-// brew paths when the Electron login shell env merge already augmented PATH
-// or when /bin/sh has a broader default PATH than the process.
+    // Fast path: 'command -v' via plain sh (no login shell, no .zshrc sourcing).
+    // This is much faster than the full login shell probe below and catches
+    // brew paths when the Electron login shell env merge already augmented PATH
+    // or when /bin/sh has a broader default PATH than the process.
     if (process.platform !== 'win32') {
       try {
         const fastResult = runSpawnSync('/bin/sh', ['-c', 'command -v opencode'], {
@@ -548,10 +548,10 @@ export const createOpenCodeEnvRuntime = (deps) => {
       return null;
     }
 
-// Fast path: 'command -v' via plain sh (no login shell, no .zshrc sourcing).
-// This is much faster than the full login shell probe below and catches
-// brew paths when the Electron login shell env merge already augmented PATH
-// or when /bin/sh has a broader default PATH than the process.
+    // Fast path: 'command -v' via plain sh (no login shell, no .zshrc sourcing).
+    // This is much faster than the full login shell probe below and catches
+    // brew paths when the Electron login shell env merge already augmented PATH
+    // or when /bin/sh has a broader default PATH than the process.
     if (process.platform !== 'win32') {
       try {
         const fastResult = runSpawnSync('/bin/sh', ['-c', 'command -v node'], {
@@ -653,10 +653,10 @@ export const createOpenCodeEnvRuntime = (deps) => {
       return null;
     }
 
-// Fast path: 'command -v' via plain sh (no login shell, no .zshrc sourcing).
-// This is much faster than the full login shell probe below and catches
-// brew paths when the Electron login shell env merge already augmented PATH
-// or when /bin/sh has a broader default PATH than the process.
+    // Fast path: 'command -v' via plain sh (no login shell, no .zshrc sourcing).
+    // This is much faster than the full login shell probe below and catches
+    // brew paths when the Electron login shell env merge already augmented PATH
+    // or when /bin/sh has a broader default PATH than the process.
     if (process.platform !== 'win32') {
       try {
         const fastResult = runSpawnSync('/bin/sh', ['-c', 'command -v bun'], {
diff --git a/scripts/reproduce-issue-1720.mjs b/scripts/reproduce-issue-1720.mjs
index 7fff57a1..40be62bb 100644
--- a/scripts/reproduce-issue-1720.mjs
+++ b/scripts/reproduce-issue-1720.mjs
@@ -25,9 +25,10 @@
  *   spawnSync($SHELL, ['-il', '-c', 'env -0'], { timeout: 5000 })
  *
  * If the shell startup is slow (>5s due to nvm, pyenv, etc.), this times
- * out and PATH stays minimal. The fast-path (Step 3b) catches standard brew
- * paths even with minimal PATH, and all shell probes now have a 5s timeout
- * to prevent blocking startup indefinitely.
+ * out and PATH stays minimal. The hardcoded fallback paths catch standard
+ * brew locations, the fast-path (Step 3b) catches binaries already visible
+ * in the inherited PATH without sourcing shell config, and all shell probes
+ * now have a 5s timeout to prevent blocking startup indefinitely.
  */
 
 import fs from 'node:fs';