From 0065c043921e489df4e6d51037d912c45a26c172 Mon Sep 17 00:00:00 2001
From: Cursor Agent <cursoragent@cursor.com>
Date: Fri, 20 Mar 2026 15:06:05 +0000
Subject: [PATCH] Add Gemfile, .gitignore, and AGENTS.md for development
 environment setup

- Gemfile: declares Jekyll and dependencies for bundle install
- .gitignore: excludes _site/, vendor/, .bundle/, etc.
- AGENTS.md: development instructions for Cursor Cloud agents

Co-authored-by: Jay <data-droid@users.noreply.github.com>
---
 .gitignore | 10 ++++++++++
 AGENTS.md  | 25 +++++++++++++++++++++++++
 Gemfile    |  6 ++++++
 3 files changed, 41 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 AGENTS.md
 create mode 100644 Gemfile

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..02c68eb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,10 @@
+# Jekyll
+_site/
+.sass-cache/
+.jekyll-cache/
+.jekyll-metadata
+
+# Bundle
+vendor/
+Gemfile.lock
+.bundle/
diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..cc61207
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,25 @@
+# AGENTS.md
+
+## Cursor Cloud specific instructions
+
+### Project Overview
+This is a bilingual (Korean/English) Jekyll static blog about data engineering. It has no CI/CD pipeline, no linter config, and no automated tests. The primary development loop is: edit Markdown/Liquid → build → preview.
+
+### Prerequisites
+- Ruby 3.x with `bundler` and `jekyll` gems (installed system-wide via `sudo gem install bundler jekyll`)
+- The `Gemfile` in the repo root declares project-level gem dependencies
+
+### Development Commands
+| Task | Command |
+|------|---------|
+| Install deps | `bundle install` (uses local `vendor/bundle` path via `.bundle/config`) |
+| Build site | `bundle exec jekyll build` |
+| Dev server | `bundle exec jekyll serve --host 0.0.0.0 --port 4000` |
+| Dev server (detached) | `bundle exec jekyll serve --host 0.0.0.0 --port 4000 --detach` |
+
+### Caveats
+- **No linter or test suite**: This project has no ESLint, RuboCop, or automated test framework. Validation is limited to `jekyll build` succeeding without errors.
+- **Liquid warnings are benign**: Build produces Liquid syntax warnings from dbt/Jinja template code embedded in blog post Markdown. These are cosmetic and do not affect the output.
+- **`_site/` is committed**: The pre-built output is checked in. After `jekyll build`, the `_site/` directory is regenerated.
+- **`vendor/bundle` is local**: Bundler is configured to install gems into `./vendor/bundle` (gitignored via `_config.yml` exclude). This avoids permission issues.
+- **No Gemfile.lock committed**: The lock file is generated locally by `bundle install`.
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..18eea71
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,6 @@
+source "https://rubygems.org"
+
+gem "jekyll", "~> 4.4"
+gem "kramdown", "~> 2.4"
+gem "rouge", "~> 4.0"
+gem "webrick", "~> 1.8"