Google Calendar (via gcalcli) - Skills Marketplace | Agento

gcalcli-calendar

Use gcalcli to read/search/manage Google Calendar with minimal tool calls and minimal output.

Rules

CLI flag placement (critical)

Global flags (--nocolor, --calendar) go BEFORE the subcommand.
Subcommand-specific flags go AFTER the subcommand name.
Example: gcalcli --nocolor delete --iamaexpert "query" start end — NOT gcalcli --nocolor --iamaexpert delete ....
This applies to ALL subcommand flags: --iamaexpert (delete), --noprompt/--allday (add), --use-legacy-import (import), etc.

Output & language

Don't print CLI commands/flags/tool details unless the user explicitly asks (e.g. "show commands used", "/debug", "/commands").
If asked for commands: print ALL executed commands in order (including retries) and nothing else.
Don't mix languages within one reply.
Be concise. No scope unless nothing found.

Dates & formatting

Human-friendly dates by default. ISO only if explicitly requested.
Don't quote event titles unless needed to disambiguate.

Calendar scope

Trust gcalcli config (default/ignore calendars). Don't broaden scope unless user asks "across all calendars" or results are clearly wrong.

Agenda (today-only by default)

If user asks "agenda" without a period, return today only.
Expand only if explicitly asked (tomorrow / next N days / date range).

Weekday requests (no mental math)

If user says "on Monday/Tuesday/..." without a date:

fetch next 14 days agenda once,
pick matching day/event from tool output,
proceed (or disambiguate if multiple).

Finding events: prefer deterministic agenda scan (meaning-first)

When locating events to cancel/delete/edit:

Prefer agenda over search.
Use a bounded window and match events by meaning (semantic match) rather than exact text.
Default locate windows:
- If user gives an exact date: scan that day only.
- If user gives a weekday: scan next 14 days.
- If user gives only meaning words ("train", "lecture", etc.) with no date: scan next 30 days first.
- If still not found: expand to 180 days and say so only if still empty.

Use gcalcli search only as a fallback when:

the time window would be too large to scan via agenda (token-heavy), or
the user explicitly asked to "search".

Search (bounded)

Default search window: next ~180 days (unless user specified otherwise).
If no matches: say "No matches in next ~6 months (<from>-><to>)" and offer to expand.
Show scope only when nothing is found.

Tool efficiency

Default: use --nocolor to reduce formatting noise and tokens.
Use --tsv only if you must parse/dedupe/sort.

Actions policy (optimized)

Unambiguous actions run immediately

For cancel/delete/edit actions:

Do NOT ask for confirmation by default.
Run immediately ONLY if the target event is unambiguous:
- single clear match in a tight window, OR
- user specified exact date+time and a matching event exists.

If ambiguous (multiple candidates):

Ask a short disambiguation question listing the smallest set of candidates (1-3 lines) and wait.

Create events: overlap check MUST be cross-calendar (non-ignored scope)

When creating an event:

Always run a best-effort overlap check across ALL non-ignored calendars by scanning agenda WITHOUT --calendar.
- This ensures overlaps are detected even if the new event is created into a specific calendar.
If overlap exists with busy events:
- Ask for confirmation before creating.
If no overlap:
- Create immediately.

Choose the right create method

add — default for one-off events. Supports --allday, --reminder, --noprompt. Does NOT support recurrence or free/busy (transparency).
import via stdin — use ONLY when you need recurrence (RRULE) or free/busy (TRANSP:TRANSPARENT). Pipe ICS content via stdin; NEVER write temp .ics files (working directory is unreliable in exec sandbox).
quick — avoid unless user explicitly asks for natural-language add. Less deterministic.

Deletes must be reliable

Use non-interactive delete with --iamaexpert (a delete subcommand flag — goes AFTER delete).
Verify once via agenda in the same tight window.
If verification still shows the event, do one retry with --refresh.
Never claim success unless verification confirms.

Canonical commands

Agenda (deterministic listing)

Today: gcalcli --nocolor agenda today tomorrow
Next 14d (weekday resolution): gcalcli --nocolor agenda today +14d
Next 30d (meaning-first locate): gcalcli --nocolor agenda today +30d
Custom: gcalcli --nocolor agenda <start> <end>

Search (fallback / explicit request)

Default (~6 months): gcalcli --nocolor search "<query>" today +180d
Custom: gcalcli --nocolor search "<query>" <start> <end>

Create — `add` (one-off events)

Overlap preflight (tight, cross-calendar):
- gcalcli --nocolor agenda <start> <end>
- IMPORTANT: do NOT add --calendar here; overlaps must be checked across all non-ignored calendars.
Timed event:
- gcalcli --nocolor --calendar "<Cal>" add --noprompt --title "<Title>" --when "<Start>" --duration <minutes>
All-day event:
- gcalcli --nocolor --calendar "<Cal>" add --noprompt --allday --title "<Title>" --when "<Date>"
With reminders (repeatable flag):
- --reminder "20160 popup" → 14 days before (20160 = 14×24×60)
- --reminder "10080 popup" → 7 days before
- --reminder "0 popup" → at event start
- Time unit suffixes: w (weeks), d (days), h (hours), m (minutes). No suffix = minutes.
- Method: popup (default), email, sms.

Create — `import` via stdin (recurrence / free/busy)

Use ONLY when add can't cover the need (recurring events, TRANSP, etc.). Pipe ICS directly via stdin — never write temp files.

echo 'BEGIN:VCALENDAR
VERSION:2.0
BEGIN:VEVENT
DTSTART;VALUE=DATE:20260308
SUMMARY:Event Title
RRULE:FREQ=YEARLY
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR' | gcalcli import --calendar "<Cal>"

DTSTART;VALUE=DATE:YYYYMMDD for all-day; DTSTART:YYYYMMDDTHHmmSS for timed.
RRULE:FREQ=YEARLY — yearly recurrence. Also: DAILY, WEEKLY, MONTHLY.
TRANSP:TRANSPARENT — free; TRANSP:OPAQUE — busy (default).
One import call = one event (one VEVENT block). For multiple events, run separate piped imports.
Add --reminder "TIME" flag(s) to set reminders (overrides any VALARM in ICS).
All import-specific flags (--use-legacy-import, --verbose, etc.) go AFTER import.

Delete (no confirmation if unambiguous)

Locate via agenda (preferred):
- gcalcli --nocolor agenda <dayStart> <dayEnd> (exact date)
- gcalcli --nocolor agenda today +14d (weekday)
- gcalcli --nocolor agenda today +30d (meaning only)
Delete (non-interactive, bounded):
- gcalcli --nocolor delete --iamaexpert "<query>" <start> <end>
Verify (same window):
- gcalcli --nocolor agenda <dayStart> <dayEnd>
Optional one retry if still present:
- gcalcli --nocolor --refresh agenda <dayStart> <dayEnd>

Edit / Modify existing events

gcalcli edit is interactive — cannot be used in non-interactive exec.
To change properties not editable in-place: delete + recreate the event.
- Locate → delete (with --iamaexpert) → create with updated properties → verify.
For bulk property changes (e.g. setting all events to free): iterate delete+recreate per event.