@@ -174,7 +174,7 @@ export const BashTool = Tool.define("bash", async () => {
         const basePath = mergedEnv.PATH ?? mergedEnv.Path ?? ""
         const pathEntries = basePath.split(sep).filter(Boolean)
         if (!pathEntries.some((entry) => entry === binDir)) {
-          mergedEnv.PATH = `${binDir}${sep}${basePath}`
+          mergedEnv.PATH = basePath ? `${binDir}${sep}${basePath}` : binDir
         }
       }
Original file line number	Diff line number	Diff line change
`@@ -174,7 +174,7 @@ export const BashTool = Tool.define("bash", async () => {`
`174`	`174`	`const basePath = mergedEnv.PATH ?? mergedEnv.Path ?? ""`
`175`	`175`	`const pathEntries = basePath.split(sep).filter(Boolean)`
`176`	`176`	`if (!pathEntries.some((entry) => entry === binDir)) {`
`177`		- mergedEnv.PATH = `${binDir}${sep}${basePath}`
	`177`	+ mergedEnv.PATH = basePath ? `${binDir}${sep}${basePath}` : binDir
`178`	`178`	`}`
`179`	`179`	`}`
`180`	`180`