diff --git a/packages/core/src/tool/glob.ts b/packages/core/src/tool/glob.ts
index af0838b9af28..338edc312c7b 100644
--- a/packages/core/src/tool/glob.ts
+++ b/packages/core/src/tool/glob.ts
@@ -76,6 +76,7 @@ export const layer = Layer.effectDiscard(
                   cwd,
                   pattern: input.pattern,
                   limit: input.limit ?? Number.MAX_SAFE_INTEGER,
+                  hidden: true,
                 })
                 .pipe(
                   Effect.map((result) =>
diff --git a/packages/opencode/src/tool/glob.ts b/packages/opencode/src/tool/glob.ts
index 40d3a27d3cba..6384111beff0 100644
--- a/packages/opencode/src/tool/glob.ts
+++ b/packages/opencode/src/tool/glob.ts
@@ -47,7 +47,7 @@ export const GlobTool = Tool.define(
           })
 
           const limit = 100
-          const files = yield* ripgrep.glob({ cwd: search, pattern: params.pattern, limit })
+          const files = yield* ripgrep.glob({ cwd: search, pattern: params.pattern, limit, hidden: true })
           const truncated = files.length === limit
 
           const output = []
diff --git a/packages/opencode/test/tool/glob.test.ts b/packages/opencode/test/tool/glob.test.ts
index 44146249907d..088095fdce7b 100644
--- a/packages/opencode/test/tool/glob.test.ts
+++ b/packages/opencode/test/tool/glob.test.ts
@@ -1,5 +1,6 @@
 import { PermissionV1 } from "@opencode-ai/core/v1/permission"
 import { describe, expect } from "bun:test"
+import fs from "fs/promises"
 import path from "path"
 import { Cause, Effect, Exit, Layer } from "effect"
 import { GlobTool } from "../../src/tool/glob"
@@ -110,6 +111,26 @@ describe("tool.glob", () => {
     }),
   )
 
+  it.instance("matches files under explicit dot directories", () =>
+    Effect.gen(function* () {
+      const test = yield* TestInstance
+      const hiddenDir = path.join(test.directory, ".ai")
+      yield* Effect.promise(() => fs.mkdir(hiddenDir, { recursive: true }))
+      yield* Effect.promise(() => Bun.write(path.join(hiddenDir, "current-task.md"), "content\n"))
+      const info = yield* GlobTool
+      const glob = yield* info.init()
+      const result = yield* glob.execute(
+        {
+          pattern: ".ai/*.md",
+          path: test.directory,
+        },
+        ctx,
+      )
+      expect(result.metadata.count).toBe(1)
+      expect(result.output).toContain(path.join(hiddenDir, "current-task.md"))
+    }),
+  )
+
   it.instance("rejects exact file paths", () =>
     Effect.gen(function* () {
       const test = yield* TestInstance