e3cli 1.0.3

NYCU E3 Moodle automation CLI — sync courses, download materials, submit assignments.

e3cli

Moodle automation CLI — works with any Moodle instance
Sync courses, download materials, submit assignments, view announcements — all from your terminal.

Install • Quick Start • Commands • Interactive • Security • AI Agents • 繁體中文

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Intended use: Finished your homework? Too lazy to open the browser? Submit it from CLI.

Unintended use: Let Claude Code auto-pull new assignments, finish them, and upload. (Please don't.)

Features

• Login — Moodle Web Service API authentication with encrypted credential storage
• Multi-profile — Multiple accounts with per-profile Moodle URL; switch profiles to switch schools instantly
• Courses — List enrolled courses grouped by semester, view course intro
• Assignments — View assignments with descriptions, deadlines, submission status, and attachments
• Download — Batch download course materials (current semester by default)
• Submit / Edit — Upload, submit, and re-upload (overwrite) assignments
• Announcements — View course announcements and their content
• Members — List course members (teachers and students)
• Messaging — Send Moodle messages to course members
• Sync — One command to pull everything new (materials + assignment status)
• Schedule — Cron-based automatic sync
• Interactive TUI — Full arrow-key interactive interface (e3cli i)
• Bilingual — Full Chinese/English support
• Multi-school — Works with any Moodle instance (configurable semester format)
• AI Agent Skill — Bundled SKILL.md installable into Claude Code / Codex CLI / Gemini CLI / Antigravity CLI (agy) (e3cli skill install)

Supported Platforms

Platform	Architecture	Status
macOS	Apple Silicon (ARM64)	:white_check_mark: Supported
macOS	Intel (x86_64)	:white_check_mark: Supported
Linux	x86_64	:white_check_mark: Supported
Linux	ARM64	:white_check_mark: Supported

Requires Python 3.11+.

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Installation

Homebrew (recommended)

brew tap junlinwk/e3cli
brew install e3cli

pipx

pipx install git+https://github.com/junlinwk/e3cli.git

pip

pip install git+https://github.com/junlinwk/e3cli.git

From source

git clone https://github.com/junlinwk/e3cli.git
cd e3cli
pip install -e ".[dev]"

After installation, e3cli is available as a system-wide command.

Upgrade

Method	Command
Homebrew	brew update && brew upgrade e3cli
pipx (GitHub)	pipx install git+https://github.com/junlinwk/e3cli.git --force
pipx (PyPI)	pipx upgrade e3cli
pip (PyPI)	pip install e3cli --upgrade

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Quick Start

On first run, any e3cli <something> command will launch the interactive setup wizard (language, Moodle URL, semester format, alias, login, AI agent skill). After setup, re-run your original command.

# 1. Login (first time — interactive setup wizard will guide you)
e3cli login --save

# 2. List your courses
e3cli courses

# 3. Download all course materials
e3cli download

# 4. Check assignments and deadlines
e3cli assignments

# 5. Submit an assignment
e3cli submit <assignment-id> homework.pdf

# 6. Launch interactive mode
e3cli i

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Commands

e3cli login

Authenticate with your Moodle account and store the API token.

e3cli login                    # Interactive prompt
e3cli login -u <student-id>    # Specify username
e3cli login --save             # Save credentials (encrypted) for auto-refresh
e3cli login --refresh          # Re-authenticate using saved credentials

e3cli logout

Securely erase all stored credentials and tokens.

e3cli logout

e3cli courses

List enrolled courses grouped by semester.

e3cli courses                  # Current semester only
e3cli courses --all            # All semesters
e3cli courses --semester 1142  # Specific semester

e3cli assignments

View assignments with deadlines, submission status, descriptions, and attachment counts. Sorted by urgency (upcoming first, expired middle, submitted last).

e3cli assignments                  # Current semester
e3cli assignments --due-soon 7     # Due within 7 days
e3cli assignments --all            # All semesters
e3cli assignments --detail <ID>    # Full description + attachments for one assignment

e3cli download

Download course materials to local disk (current semester by default).

e3cli download                     # Current semester (default)
e3cli download --all               # All semesters
e3cli download --course "OS"       # Fuzzy match by course name/code
e3cli download --select            # Interactive course selection

Files are saved to ~/e3-downloads/<course>/<section>/ by default. Already-downloaded files are skipped automatically (tracked via SQLite).

e3cli submit

Upload and submit an assignment.

e3cli submit <assignment-id> file1.pdf file2.zip
e3cli submit <assignment-id> report.pdf --text "Some notes"
e3cli submit <assignment-id> late-hw.pdf --force     # Submit past deadline

Re-submitting to the same assignment ID will overwrite the previous submission.

e3cli announcements

View course announcements.

e3cli announcements -c "OS"                # List announcements
e3cli announcements -c "OS" --detail <ID>  # View full content + attachments

e3cli members

List course members with roles and email.

e3cli members -c "OS"          # Teachers listed first

e3cli message

Send a Moodle message to a user (recipient receives notification based on their settings).

e3cli message <user-id> "Hello"    # Direct message
e3cli message <user-id>            # Interactive multi-line input

e3cli sync

Pull all new materials and update assignment status in one command.

e3cli sync                     # Current semester (default)
e3cli sync --all               # All semesters
e3cli sync --course "OS"       # Specific course
e3cli sync --quiet             # Silent mode (for cron)

e3cli schedule

Manage automatic sync via system crontab.

e3cli schedule enable                  # Default: every 60 minutes
e3cli schedule enable --interval 30    # Every 30 minutes
e3cli schedule disable                 # Remove cron job
e3cli schedule status                  # Show current schedule

e3cli profile

Manage multiple accounts. Each profile stores its own credentials, token, and Moodle URL, so you can switch between different schools instantly.

e3cli profile                  # List all profiles (with school URL)
e3cli profile use <name>       # Switch to a profile (also switches Moodle URL)
e3cli profile remove <name>    # Remove a profile

When switching profiles via e3cli profile use or the interactive TUI, the Moodle URL in config.toml is automatically updated to match the profile's school.

# Login to a different school with a new profile
e3cli login --profile nycu --url https://e3p.nycu.edu.tw --save
e3cli login --profile ntu --url https://cool.ntu.edu.tw --save

# Switch between schools
e3cli profile use nycu    # → connects to NYCU E3
e3cli profile use ntu     # → connects to NTU COOL

e3cli setup

Re-run the interactive setup wizard. Six steps: Moodle URL → semester format → download directory → command alias → login → AI agent skill install.

e3cli setup

The setup wizard runs automatically the first time any e3cli command is invoked (config file missing).

e3cli skill

Install the bundled SKILL.md so AI coding agents (Claude Code / Codex CLI / Gemini CLI / Antigravity CLI (agy)) know how to use e3cli — when to sync, how to read full assignment details, when to ask before submitting.

e3cli skill status                # show which agents are detected + installed
e3cli skill install               # auto-detect ~/.claude / ~/.codex / ~/.gemini / antigravity-cli
e3cli skill install -t claude     # install for a specific target (claude/codex/gemini/antigravity)
e3cli skill install -t all        # install for all known agents (even if undetected)
e3cli skill install --force       # overwrite existing
e3cli skill uninstall             # remove from all agent dirs

The setup wizard offers this as Step 6; running e3cli skill install later is the same operation.

e3cli version

e3cli version

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Interactive Mode

Launch with e3cli i for a full TUI experience with arrow-key navigation:

╭──────────────── e3cli v0.5.0 ────────────────╮
│  王小明  |  114學年第2學期  |  6 courses      │
╰──────────────────────────────────────────────╯

────────────────── 主選單 ──────────────────────
❯ 選擇課程 (114學年第2學期)
  選擇課程 (所有學期)
  作業
  同步課程
  離開

↑↓ navigate  →/Enter select  ← back  / search
────────────────────────────────────────────────

Navigation

Key	Action
↑ ↓	Move selection
→ / Enter	Enter selected item
← / Esc	Go back
/ or type	Search / filter
q	Quit / back

Profile Menu

Select "Profile" from the main menu to:

• Switch between profiles (auto-reloads with the new school's data)
• Edit a profile (change Moodle URL, username, password)
• Delete a profile (cannot delete the active one)
• Add a new profile with a different school URL

Course Menu

Enter a course to access:

• Course Intro — View course description
• Materials — Browse and download files (with download status)
• Assignments — View with descriptions, attachments, submission status; submit or re-upload
• Announcements — Read course announcements
• Members — View member list, send messages directly
• Grades — View grade items

Assignment Detail

Select an assignment to see:

• Full description (HTML rendered as text)
• Attachment list with download
• Currently submitted files
• Submit (s) or Edit/re-upload (e) with tab-completion file picker
• Shell mode (!) for terminal commands within the file picker

File Picker Features

When submitting or re-uploading:

• Shows current directory and file listing
• Tab completion for file paths (like your shell)
• !command to run a shell command (e.g., !ls -la)
• ! alone to enter interactive shell mode (type exit to return)
• Confirmation prompt before uploading

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Configuration

Config file location: ~/.e3cli/config.toml

[moodle]
url = "https://e3p.nycu.edu.tw"
service = "moodle_mobile_app"

[storage]
download_dir = "~/e3-downloads"

[schedule]
interval_minutes = 60
notify = true

[general]
lang = "zh"              # "zh" or "en", or omit for auto-detect
semester_format = "nycu"  # "nycu", "western", "none"
alias = ""                # custom command name (e.g. "moodle")

Semester Format

Format	Schools	Example
nycu (default)	NYCU, NTU, and other Taiwan universities	1142 = year 114, semester 2
western	Western year-based systems	2025
none	Any school (no filtering)	All courses treated as current

Auto-created with defaults on first run. Edit to customize, or run e3cli setup to reconfigure interactively.

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Security

Credential Storage

e3cli uses PBKDF2-HMAC-SHA256 key derivation with integrity verification to protect stored credentials:

~/.e3cli/profiles/<name>/
  key               # 256-bit random encryption key  (chmod 600)
  credentials.enc   # Encrypted username + password   (chmod 600)
  token             # Moodle API token                (chmod 600)
  profile.json      # Moodle URL and service config

Measure	Detail
Encryption	PBKDF2-HMAC-SHA256 (100k iterations) + XOR stream cipher
Integrity	HMAC-SHA256 verification on every read
File permissions	chmod 600 — owner-only read/write
Password input	getpass — never appears in shell history or CLI args
Logout	e3cli logout overwrites files with zeros before deletion
Key separation	Encryption key and encrypted data stored in separate files

What's NOT Stored

• :x: No plaintext passwords on disk
• :x: No credentials in config.toml
• :x: No credentials in environment variables
• :x: No credentials in shell history

Recommendations

• Use e3cli login --save only on machines you trust
• Run e3cli logout when done on shared machines
• The ~/.e3cli/ directory is in .gitignore — never commit it

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AI Agent Integration

e3cli ships with a SKILL.md that teaches AI coding agents — Claude Code, OpenAI Codex CLI, Google Gemini CLI, and Google Antigravity CLI (agy, Gemini CLI's successor) — how to use it correctly: sync first, read full assignment details before working, ask before submitting, never read credential files, etc.

Install the skill

The setup wizard's Step 6 offers this automatically. To install manually:

e3cli skill install               # auto-detects ~/.claude / ~/.codex / ~/.gemini / ~/.gemini/antigravity-cli
e3cli skill status                # see what's detected and installed

Once installed, the agent recognises Moodle-related requests ("Moodle", "NYCU", "E3", "assignment", "作業", "繳交", …) and follows the bundled workflow.

What the agent can do

• Sync and check for new assignments (e3cli sync)
• Read assignment descriptions and downloaded materials
• Help complete assignments (with human oversight)
• Submit completed work (e3cli submit)

See e3cli/skills/e3cli/SKILL.md, CLAUDE.md, and e3cli/agent_prompt.md for the full agent automation guide.

Note: AI agents will always ask for confirmation before submitting assignments.

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Local Data

Path	Purpose
~/.e3cli/config.toml	User configuration
~/.e3cli/token	Active profile's Moodle API token (chmod 600)
~/.e3cli/active_profile	Active profile name
~/.e3cli/profiles/<name>/	Per-profile credentials, token, key, and Moodle URL
~/.e3cli/data/e3cli.db	SQLite tracking DB
~/e3-downloads/	Downloaded course materials

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Development

git clone https://github.com/junlinwk/e3cli.git
cd e3cli
make dev       # pip install -e ".[dev]"
make lint      # ruff check
make test      # pytest
make build     # python -m build

Roadmap

• Interactive TUI with arrow-key navigation
• Semester filtering (current semester by default)
• Multi-school Moodle support (per-profile URL)
• Assignment descriptions and attachments
• Course announcements
• Course members and messaging
• Edit/re-upload submissions
• AI-powered material summarization
• AI-assisted assignment drafting
• Smart deadline notifications with priority scoring
• Desktop notifications (Linux notify-send, macOS osascript)
• Parallel downloads

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License

MIT