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feat: add himalaya email CLI skill

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Add skill for Himalaya (https://github.com/pimalaya/himalaya), a CLI
email client supporting IMAP, SMTP, Notmuch, and Sendmail backends.

Includes:
- SKILL.md with common operations (list, read, reply, forward, send)
- Configuration reference for Gmail, iCloud, and generic IMAP/SMTP
- MML (MIME Meta Language) composition guide for attachments

Tested with iCloud IMAP account - verified folder listing, email
reading, and sending work correctly.
This commit is contained in:
Dante Lex
2026-01-06 16:37:08 -05:00
committed by Peter Steinberger
parent 5939363eed
commit e6d6c822c5
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---
name: himalaya
description: "CLI to manage emails via IMAP/SMTP. Use `himalaya` to list, read, write, reply, forward, search, and organize emails from the terminal. Supports multiple accounts and message composition with MML (MIME Meta Language)."
homepage: https://github.com/pimalaya/himalaya
metadata: {"clawdbot":{"emoji":"📧","requires":{"bins":["himalaya"]},"install":[{"id":"brew","kind":"brew","formula":"himalaya","bins":["himalaya"],"label":"Install Himalaya (brew)"},{"id":"cargo","kind":"shell","cmd":"cargo install himalaya","bins":["himalaya"],"label":"Install Himalaya (cargo)"}]}}
---
# Himalaya Email CLI
Himalaya is a CLI email client that lets you manage emails from the terminal using IMAP, SMTP, Notmuch, or Sendmail backends.
## References
- `references/configuration.md` (config file setup + IMAP/SMTP authentication)
- `references/message-composition.md` (MML syntax for composing emails)
## Prerequisites
1. Himalaya CLI installed (`himalaya --version` to verify)
2. A configuration file at `~/.config/himalaya/config.toml`
3. IMAP/SMTP credentials configured (password stored securely)
## Configuration Setup
Run the interactive wizard to set up an account:
```bash
himalaya account configure
```
Or create `~/.config/himalaya/config.toml` manually:
```toml
[accounts.personal]
email = "you@example.com"
display-name = "Your Name"
default = true
backend.type = "imap"
backend.host = "imap.example.com"
backend.port = 993
backend.encryption.type = "tls"
backend.login = "you@example.com"
backend.auth.type = "password"
backend.auth.cmd = "pass show email/imap" # or use keyring
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.example.com"
message.send.backend.port = 587
message.send.backend.encryption.type = "start-tls"
message.send.backend.login = "you@example.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.cmd = "pass show email/smtp"
```
## Common Operations
### List Folders
```bash
himalaya folder list
```
### List Emails
List emails in INBOX (default):
```bash
himalaya envelope list
```
List emails in a specific folder:
```bash
himalaya envelope list --folder "Sent"
```
List with pagination:
```bash
himalaya envelope list --page 1 --page-size 20
```
### Search Emails
```bash
himalaya envelope list --query "from:john@example.com subject:meeting"
```
### Read an Email
Read email by ID (shows plain text):
```bash
himalaya message read 42
```
Read as raw MIME:
```bash
himalaya message read 42 --raw
```
### Reply to an Email
Interactive reply (opens $EDITOR):
```bash
himalaya message reply 42
```
Reply-all:
```bash
himalaya message reply 42 --all
```
### Forward an Email
```bash
himalaya message forward 42
```
### Write a New Email
Interactive compose (opens $EDITOR):
```bash
himalaya message write
```
Send directly using template:
```bash
cat << 'EOF' | himalaya template send
From: you@example.com
To: recipient@example.com
Subject: Test Message
Hello from Himalaya!
EOF
```
Or with headers flag:
```bash
himalaya message write -H "To:recipient@example.com" -H "Subject:Test" "Message body here"
```
### Move/Copy Emails
Move to folder:
```bash
himalaya message move 42 "Archive"
```
Copy to folder:
```bash
himalaya message copy 42 "Important"
```
### Delete an Email
```bash
himalaya message delete 42
```
### Manage Flags
Add flag:
```bash
himalaya flag add 42 --flag seen
```
Remove flag:
```bash
himalaya flag remove 42 --flag seen
```
## Multiple Accounts
List accounts:
```bash
himalaya account list
```
Use a specific account:
```bash
himalaya --account work envelope list
```
## Attachments
Save attachments from a message:
```bash
himalaya attachment download 42
```
Save to specific directory:
```bash
himalaya attachment download 42 --dir ~/Downloads
```
## Output Formats
Most commands support `--output` for structured output:
```bash
himalaya envelope list --output json
himalaya envelope list --output plain
```
## Sync Mode
For faster access, enable local caching:
```bash
himalaya account sync personal
```
## Debugging
Enable debug logging:
```bash
RUST_LOG=debug himalaya envelope list
```
Full trace with backtrace:
```bash
RUST_LOG=trace RUST_BACKTRACE=1 himalaya envelope list
```
## Tips
- Use `himalaya --help` or `himalaya <command> --help` for detailed usage.
- Message IDs are relative to the current folder; re-list after folder changes.
- For composing rich emails with attachments, use MML syntax (see `references/message-composition.md`).
- Store passwords securely using `pass`, system keyring, or a command that outputs the password.

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# Himalaya Configuration Reference
Configuration file location: `~/.config/himalaya/config.toml`
## Minimal IMAP + SMTP Setup
```toml
[accounts.default]
email = "user@example.com"
display-name = "Your Name"
default = true
# IMAP backend for reading emails
backend.type = "imap"
backend.host = "imap.example.com"
backend.port = 993
backend.encryption.type = "tls"
backend.login = "user@example.com"
backend.auth.type = "password"
backend.auth.raw = "your-password"
# SMTP backend for sending emails
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.example.com"
message.send.backend.port = 587
message.send.backend.encryption.type = "start-tls"
message.send.backend.login = "user@example.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.raw = "your-password"
```
## Password Options
### Raw password (testing only, not recommended)
```toml
backend.auth.raw = "your-password"
```
### Password from command (recommended)
```toml
backend.auth.cmd = "pass show email/imap"
backend.auth.cmd = "security find-generic-password -a user@example.com -s imap -w"
```
### System keyring (requires keyring feature)
```toml
backend.auth.keyring = "imap-example"
```
Then run `himalaya configure -a <account>` to store the password.
## Gmail Configuration
```toml
[accounts.gmail]
email = "you@gmail.com"
display-name = "Your Name"
default = true
backend.type = "imap"
backend.host = "imap.gmail.com"
backend.port = 993
backend.encryption.type = "tls"
backend.login = "you@gmail.com"
backend.auth.type = "password"
backend.auth.cmd = "pass show google/app-password"
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.gmail.com"
message.send.backend.port = 587
message.send.backend.encryption.type = "start-tls"
message.send.backend.login = "you@gmail.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.cmd = "pass show google/app-password"
```
**Note:** Gmail requires an App Password if 2FA is enabled.
## iCloud Configuration
```toml
[accounts.icloud]
email = "you@icloud.com"
display-name = "Your Name"
backend.type = "imap"
backend.host = "imap.mail.me.com"
backend.port = 993
backend.encryption.type = "tls"
backend.login = "you@icloud.com"
backend.auth.type = "password"
backend.auth.cmd = "pass show icloud/app-password"
message.send.backend.type = "smtp"
message.send.backend.host = "smtp.mail.me.com"
message.send.backend.port = 587
message.send.backend.encryption.type = "start-tls"
message.send.backend.login = "you@icloud.com"
message.send.backend.auth.type = "password"
message.send.backend.auth.cmd = "pass show icloud/app-password"
```
**Note:** Generate an app-specific password at appleid.apple.com
## Folder Aliases
Map custom folder names:
```toml
[accounts.default.folder.alias]
inbox = "INBOX"
sent = "Sent"
drafts = "Drafts"
trash = "Trash"
```
## Multiple Accounts
```toml
[accounts.personal]
email = "personal@example.com"
default = true
# ... backend config ...
[accounts.work]
email = "work@company.com"
# ... backend config ...
```
Switch accounts with `--account`:
```bash
himalaya --account work envelope list
```
## Notmuch Backend (local mail)
```toml
[accounts.local]
email = "user@example.com"
backend.type = "notmuch"
backend.db-path = "~/.mail/.notmuch"
```
## OAuth2 Authentication (for providers that support it)
```toml
backend.auth.type = "oauth2"
backend.auth.client-id = "your-client-id"
backend.auth.client-secret.cmd = "pass show oauth/client-secret"
backend.auth.access-token.cmd = "pass show oauth/access-token"
backend.auth.refresh-token.cmd = "pass show oauth/refresh-token"
backend.auth.auth-url = "https://provider.com/oauth/authorize"
backend.auth.token-url = "https://provider.com/oauth/token"
```
## Additional Options
### Signature
```toml
[accounts.default]
signature = "Best regards,\nYour Name"
signature-delim = "-- \n"
```
### Downloads directory
```toml
[accounts.default]
downloads-dir = "~/Downloads/himalaya"
```
### Editor for composing
Set via environment variable:
```bash
export EDITOR="vim"
```

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# Message Composition with MML (MIME Meta Language)
Himalaya uses MML for composing emails. MML is a simple XML-based syntax that compiles to MIME messages.
## Basic Message Structure
An email message is a list of **headers** followed by a **body**, separated by a blank line:
```
From: sender@example.com
To: recipient@example.com
Subject: Hello World
This is the message body.
```
## Headers
Common headers:
- `From`: Sender address
- `To`: Primary recipient(s)
- `Cc`: Carbon copy recipients
- `Bcc`: Blind carbon copy recipients
- `Subject`: Message subject
- `Reply-To`: Address for replies (if different from From)
- `In-Reply-To`: Message ID being replied to
### Address Formats
```
To: user@example.com
To: John Doe <john@example.com>
To: "John Doe" <john@example.com>
To: user1@example.com, user2@example.com, "Jane" <jane@example.com>
```
## Plain Text Body
Simple plain text email:
```
From: alice@localhost
To: bob@localhost
Subject: Plain Text Example
Hello, this is a plain text email.
No special formatting needed.
Best,
Alice
```
## MML for Rich Emails
### Multipart Messages
Alternative text/html parts:
```
From: alice@localhost
To: bob@localhost
Subject: Multipart Example
<#multipart type=alternative>
This is the plain text version.
<#part type=text/html>
<html><body><h1>This is the HTML version</h1></body></html>
<#/multipart>
```
### Attachments
Attach a file:
```
From: alice@localhost
To: bob@localhost
Subject: With Attachment
Here is the document you requested.
<#part filename=/path/to/document.pdf><#/part>
```
Attachment with custom name:
```
<#part filename=/path/to/file.pdf name=report.pdf><#/part>
```
Multiple attachments:
```
<#part filename=/path/to/doc1.pdf><#/part>
<#part filename=/path/to/doc2.pdf><#/part>
```
### Inline Images
Embed an image inline:
```
From: alice@localhost
To: bob@localhost
Subject: Inline Image
<#multipart type=related>
<#part type=text/html>
<html><body>
<p>Check out this image:</p>
<img src="cid:image1">
</body></html>
<#part disposition=inline id=image1 filename=/path/to/image.png><#/part>
<#/multipart>
```
### Mixed Content (Text + Attachments)
```
From: alice@localhost
To: bob@localhost
Subject: Mixed Content
<#multipart type=mixed>
<#part type=text/plain>
Please find the attached files.
Best,
Alice
<#part filename=/path/to/file1.pdf><#/part>
<#part filename=/path/to/file2.zip><#/part>
<#/multipart>
```
## MML Tag Reference
### `<#multipart>`
Groups multiple parts together.
- `type=alternative`: Different representations of same content
- `type=mixed`: Independent parts (text + attachments)
- `type=related`: Parts that reference each other (HTML + images)
### `<#part>`
Defines a message part.
- `type=<mime-type>`: Content type (e.g., `text/html`, `application/pdf`)
- `filename=<path>`: File to attach
- `name=<name>`: Display name for attachment
- `disposition=inline`: Display inline instead of as attachment
- `id=<cid>`: Content ID for referencing in HTML
## Composing from CLI
### Interactive compose
Opens your `$EDITOR`:
```bash
himalaya message write
```
### Reply (opens editor with quoted message)
```bash
himalaya message reply 42
himalaya message reply 42 --all # reply-all
```
### Forward
```bash
himalaya message forward 42
```
### Send from stdin
```bash
cat message.txt | himalaya message write
```
### Send with headers from CLI
```bash
echo "Message body here" | himalaya message write \
--to "recipient@example.com" \
--subject "Quick Message"
```
## Tips
- The editor opens with a template; fill in headers and body.
- Save and exit the editor to send; exit without saving to cancel.
- MML parts are compiled to proper MIME when sending.
- Use `--raw` with `message read` to see the raw MIME structure of received emails.