chore: restructure Claude skills from flat files to directory format (#2246)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: TC-MO

.claude/README.md

@@ -15,10 +15,10 @@ This directory contains Claude Code configuration for the Apify documentation re
 │   ├── file-organization.md  # Naming conventions
 │   └── quality-standards.md  # Quality checklist
 └── skills/                # Reusable skills for common tasks
-    ├── doc-write.md       # Documentation writing skill
-    ├── api-doc.md         # API documentation skill
-    ├── tutorial.md        # Tutorial creation skill
-    └── review-docs.md     # Documentation review skill
+    ├── doc-write/         # Documentation writing skill
+    ├── api-doc/           # API documentation skill
+    ├── tutorial/          # Tutorial creation skill
+    └── review-docs/       # Documentation review skill
 ```
 
 ## How to use

.claude/claude.json

@@ -1,26 +1,4 @@
 {
-  "skills": [
-    {
-      "name": "doc-write",
-      "description": "Create or edit documentation following Apify style guide",
-      "path": "skills/doc-write.md"
-    },
-    {
-      "name": "api-doc",
-      "description": "Work with OpenAPI specifications and API documentation",
-      "path": "skills/api-doc.md"
-    },
-    {
-      "name": "tutorial",
-      "description": "Create structured tutorials with proper learning progression",
-      "path": "skills/tutorial.md"
-    },
-    {
-      "name": "review-docs",
-      "description": "Review documentation for style guide compliance and quality",
-      "path": "skills/review-docs.md"
-    }
-  ],
   "instructions": "instructions.md",
   "context": [
     "../AGENTS.md",

.claude/skills/api-doc.md .claude/skills/api-doc/SKILL.md.claude/skills/api-doc.md renamed to .claude/skills/api-doc/SKILL.md

@@ -107,8 +107,8 @@ Use this streamlined checklist for reviews. For detailed standards, see `.claude
   - Keywords used naturally
 
 - [ ] **Content-type specific checks**
-  - **Tutorials** (see `tutorial.md` skill): Clear learning objectives, prerequisites listed, sequential numbered steps, summary and next steps
-  - **API docs** (see `api-doc.md` skill): Operation IDs follow conventions, all parameters documented, code samples included (JS, Python, cURL), error responses documented
+  - **Tutorials** (see `/tutorial` skill): Clear learning objectives, prerequisites listed, sequential numbered steps, summary and next steps
+  - **API docs** (see `/api-doc` skill): Operation IDs follow conventions, all parameters documented, code samples included (JS, Python, cURL), error responses documented
   - **Reference pages**: Comprehensive parameter tables, default values specified, type information included
 
 ## How to review