From 246d40db73a6bf736189414db6433556e65bfb9d Mon Sep 17 00:00:00 2001
From: Chris Yuan <honglong@gmail.com>
Date: Wed, 24 Jun 2026 13:08:22 +0800
Subject: [PATCH] fix(skill): emit base directory as filesystem path, not
 file:// URL (#33580)

Co-authored-by: Aiden Cline <aidenpcline@gmail.com>
---
 packages/core/src/tool/skill.ts           | 3 +--
 packages/core/test/tool-skill.test.ts     | 3 +--
 packages/opencode/src/tool/skill.ts       | 3 +--
 packages/opencode/test/tool/skill.test.ts | 3 +--
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/packages/core/src/tool/skill.ts b/packages/core/src/tool/skill.ts
index ce25e7852..0cf9ee354 100644
--- a/packages/core/src/tool/skill.ts
+++ b/packages/core/src/tool/skill.ts
@@ -1,7 +1,6 @@
 export * as SkillTool from "./skill"
 
 import path from "path"
-import { pathToFileURL } from "url"
 import { ToolFailure } from "@opencode-ai/llm"
 import { Effect, Layer, Schema } from "effect"
 import { FSUtil } from "../fs-util"
@@ -39,7 +38,7 @@ export const toModelOutput = (skill: SkillV2.Info, files: ReadonlyArray<string>)
     "",
     skill.content.trim(),
     "",
-    `Base directory for this skill: ${pathToFileURL(directory).href}`,
+    `Base directory for this skill: ${directory}`,
     "Relative paths in this skill (e.g., scripts/, reference/) are relative to this base directory.",
     "Note: file list is sampled.",
     "",
diff --git a/packages/core/test/tool-skill.test.ts b/packages/core/test/tool-skill.test.ts
index abeb35bf9..848ae8da8 100644
--- a/packages/core/test/tool-skill.test.ts
+++ b/packages/core/test/tool-skill.test.ts
@@ -1,6 +1,5 @@
 import fs from "fs/promises"
 import path from "path"
-import { pathToFileURL } from "url"
 import { describe, expect } from "bun:test"
 import { Effect, Layer } from "effect"
 import { FSUtil } from "@opencode-ai/core/fs-util"
@@ -90,7 +89,7 @@ describe("SkillTool", () => {
               value: SkillTool.toModelOutput(info, [reference]),
             })
             expect(SkillTool.toModelOutput(info, [reference])).toContain(
-              `Base directory for this skill: ${pathToFileURL(directory).href}`,
+              `Base directory for this skill: ${directory}`,
             )
             expect(
               yield* settleTool(registry, {
diff --git a/packages/opencode/src/tool/skill.ts b/packages/opencode/src/tool/skill.ts
index 49901182b..9149bcc5f 100644
--- a/packages/opencode/src/tool/skill.ts
+++ b/packages/opencode/src/tool/skill.ts
@@ -1,5 +1,4 @@
 import path from "path"
-import { pathToFileURL } from "url"
 import { Effect, Schema } from "effect"
 import { Ripgrep } from "@opencode-ai/core/ripgrep"
 import { Skill } from "../skill"
@@ -33,7 +32,7 @@ export const SkillTool = Tool.define(
           })
 
           const dir = path.dirname(info.location)
-          const base = pathToFileURL(dir).href
+          const base = dir
           const files = yield* ripgrep.find({
             cwd: dir,
             pattern: "!**/SKILL.md",
diff --git a/packages/opencode/test/tool/skill.test.ts b/packages/opencode/test/tool/skill.test.ts
index 8584e231f..177dbddcb 100644
--- a/packages/opencode/test/tool/skill.test.ts
+++ b/packages/opencode/test/tool/skill.test.ts
@@ -4,7 +4,6 @@ import { Ripgrep } from "@opencode-ai/core/ripgrep"
 import { Cause, Effect, Exit, Layer } from "effect"
 import { afterEach, describe, expect } from "bun:test"
 import path from "path"
-import { pathToFileURL } from "url"
 import type { Permission } from "../../src/permission"
 import type { Tool } from "@/tool/tool"
 import { SkillTool } from "../../src/tool/skill"
@@ -90,7 +89,7 @@ Use this skill.
       expect(requests[0].always).toContain("tool-skill")
       expect(result.metadata.dir).toBe(skill)
       expect(result.output).toContain(`<skill_content name="tool-skill">`)
-      expect(result.output).toContain(`Base directory for this skill: ${pathToFileURL(skill).href}`)
+      expect(result.output).toContain(`Base directory for this skill: ${skill}`)
       expect(result.output).toContain(`<file>${file}</file>`)
     }),
   )