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.
npx agentmods add skills/understudy-ai/understudy/gognpx skills add understudy-ai/understudy --skill goggit clone --depth 1 https://github.com/understudy-ai/understudyWhat 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.
| Model | Per session | Once 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 |
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.
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.
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.jsongog auth add [email protected] --services gmail,calendar,drive,contacts,docs,sheetsgog 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 colorsto see all available event colors (IDs 1-11) - Add colors to events with
--event-color <id>flag - Event color IDs (from
gog calendar colorsoutput):- 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-filefor multi-paragraph messages (or--body-file -for stdin). -
Same
--body-filepattern works for drafts and replies. -
--bodydoes not unescape\n. If you need inline newlines, use a heredoc or$'Line 1\n\nLine 2'. -
Use
--body-htmlonly 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
--jsonplus--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 searchreturns one row per thread; usegog gmail messages searchwhen you need every individual email returned separately.
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.
- yesterday First seen · 117 lines · 20 tokens per session scan A 5c5998a7e1bd
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.
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