gog

A command-line interface for Gmail, Calendar, Drive, Contacts, Sheets, and Docs, which are Google services for email, scheduling, files, contacts, spreadsheets, and documents.

In plain words
What is it for?
Use it to search and send email, create drafts and replies, list calendar events, and work with files, contacts, spreadsheets, and documents.
Why use it?
It lets scripts and agents work with Google Workspace data from the terminal after one-time OAuth authorization.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/understudy-ai/understudy/gog
Any agent
npx skills add understudy-ai/understudy --skill gog
Clone the repo
git clone --depth 1 https://github.com/understudy-ai/understudy

Made for: Claude Code, Codex.

Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,392 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00020 $0.01392
Opus 5 $0.00010 $0.00696
Sonnet 5 $0.00004 $0.00278
Haiku 4.5 $0.00002 $0.00139

Measured yesterday against content hash 5c5998a7e1bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gog scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to gog — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/gog/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

gog

Use gog for Gmail/Calendar/Drive/Contacts/Sheets/Docs. Requires OAuth setup.

Setup (once)

  • gog auth credentials /path/to/client_secret.json
  • gog auth add [email protected] --services gmail,calendar,drive,contacts,docs,sheets
  • gog auth list

Common commands

  • Gmail search: gog gmail search 'newer_than:7d' --max 10
  • Gmail messages search (per email, ignores threading): gog gmail messages search "in:inbox from:ryanair.com" --max 20 --account [email protected]
  • Gmail send (plain): gog gmail send --to [email protected] --subject "Hi" --body "Hello"
  • Gmail send (multi-line): gog gmail send --to [email protected] --subject "Hi" --body-file ./message.txt
  • Gmail send (stdin): gog gmail send --to [email protected] --subject "Hi" --body-file -
  • Gmail send (HTML): gog gmail send --to [email protected] --subject "Hi" --body-html "<p>Hello</p>"
  • Gmail draft: gog gmail drafts create --to [email protected] --subject "Hi" --body-file ./message.txt
  • Gmail send draft: gog gmail drafts send <draftId>
  • Gmail reply: gog gmail send --to [email protected] --subject "Re: Hi" --body "Reply" --reply-to-message-id <msgId>
  • Calendar list events: gog calendar events <calendarId> --from <iso> --to <iso>
  • Calendar create event: gog calendar create <calendarId> --summary "Title" --from <iso> --to <iso>
  • Calendar create with color: gog calendar create <calendarId> --summary "Title" --from <iso> --to <iso> --event-color 7
  • Calendar update event: gog calendar update <calendarId> <eventId> --summary "New Title" --event-color 4
  • Calendar show colors: gog calendar colors
  • Drive search: gog drive search "query" --max 10
  • Contacts: gog contacts list --max 20
  • Sheets get: gog sheets get <sheetId> "Tab!A1:D10" --json
  • Sheets update: gog sheets update <sheetId> "Tab!A1:B2" --values-json '[["A","B"],["1","2"]]' --input USER_ENTERED
  • Sheets append: gog sheets append <sheetId> "Tab!A:C" --values-json '[["x","y","z"]]' --insert INSERT_ROWS
  • Sheets clear: gog sheets clear <sheetId> "Tab!A2:Z"
  • Sheets metadata: gog sheets metadata <sheetId> --json
  • Docs export: gog docs export <docId> --format txt --out /tmp/doc.txt
  • Docs cat: gog docs cat <docId>

Calendar Colors

  • Use gog calendar colors to see all available event colors (IDs 1-11)
  • Add colors to events with --event-color <id> flag
  • Event color IDs (from gog calendar colors output):
    • 1: #a4bdfc
    • 2: #7ae7bf
    • 3: #dbadff
    • 4: #ff887c
    • 5: #fbd75b
    • 6: #ffb878
    • 7: #46d6db
    • 8: #e1e1e1
    • 9: #5484ed
    • 10: #51b749
    • 11: #dc2127

Email Formatting

  • Prefer plain text. Use --body-file for multi-paragraph messages (or --body-file - for stdin).

  • Same --body-file pattern works for drafts and replies.

  • --body does not unescape \n. If you need inline newlines, use a heredoc or $'Line 1\n\nLine 2'.

  • Use --body-html only when you need rich formatting.

  • HTML tags: <p> for paragraphs, <br> for line breaks, <strong> for bold, <em> for italic, <a href="url"> for links, <ul>/<li> for lists.

  • Example (plain text via stdin):

    gog gmail send --to [email protected] \
      --subject "Meeting Follow-up" \
      --body-file - <<'EOF'
    Hi Name,
    
    Thanks for meeting today. Next steps:
    - Item one
    - Item two
    
    Best regards,
    Your Name
    EOF
    
  • Example (HTML list):

    gog gmail send --to [email protected] \
      --subject "Meeting Follow-up" \
      --body-html "<p>Hi Name,</p><p>Thanks for meeting today. Here are the next steps:</p><ul><li>Item one</li><li>Item two</li></ul><p>Best regards,<br>Your Name</p>"
    

Notes

  • Set [email protected] to avoid repeating --account.
  • For scripting, prefer --json plus --no-input.
  • Sheets values can be passed via --values-json (recommended) or as inline rows.
  • Docs supports export/cat/copy. In-place edits require a Docs API client (not in gog).
  • Confirm before sending mail or creating events.
  • gog gmail search returns one row per thread; use gog gmail messages search when you need every individual email returned separately.

Read the full file on GitHub · 117 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 117 lines · 20 tokens per session scan A 5c5998a7e1bd

Subscribe to this mod's changes

gog is a skill published in the GitHub repository understudy-ai/understudy (456 stars, last pushed 2mo ago), licensed MIT. It adds 20 tokens to every session and 1,392 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to gog, differing in 2 lines, and is treated as a copy.