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Apple Calendar — measured AI agent skill | DecimalAI

sundial-org/apple-calendar

NewSkillScoreMaintained

Apple Calendar.app integration for macOS. CRUD operations for events, search, and multi-calendar support.

productivityby sundial-org

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

Personal Assistant pack

1 · One-time — install the CLI (docs ↗)

pip install decimalai

2 · Get the skill — writes .claude/skills/sundial-org-apple-calendar/SKILL.md

decimalai skills pull sundial-org-apple-calendar --out .claude/skills/

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/sundial-org-apple-calendar/SKILL.md https://app.decimal.ai/s/sundial-org-apple-calendar/SKILL.md

Raw file: /s/sundial-org-apple-calendar/SKILL.md ↗ · machine-readable summary at /s/sundial-org-apple-calendar.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

22 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 4h ago

—-28% tokens0% turns59% of whole cases pass with skill (13/22)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-05	✗→✓	▲ Improved	-39%	0%
case-06	✗→✓	▲ Improved	-66%	0%
case-08	✗→✓	▲ Improved	-2%	0%
case-09	✗→✓	▲ Improved	69%	0%
case-16	✗→✓	▲ Improved	-56%	0%

Showing 5 of 22 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

sundial-org / awesome-openclaw-skills

skills/apple-calendar/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1Bundled 7 files · scripts

Skill contents

scripts/

SKILL.md

Apple Calendar

Interact with Calendar.app via AppleScript. Run scripts from: cd {baseDir}

Commands

| Command | Usage | |---------|-------| | List calendars | scripts/cal-list.sh | | List events | scripts/cal-events.sh [days_ahead] [calendar_name] | | Read event | scripts/cal-read.sh <event-uid> [calendar_name] | | Create event | scripts/cal-create.sh <calendar> <summary> <start> <end> [location] [description] [allday] [recurrence] | | Update event | scripts/cal-update.sh <event-uid> [--summary X] [--start X] [--end X] [--location X] [--description X] | | Delete event | scripts/cal-delete.sh <event-uid> [calendar_name] | | Search events | scripts/cal-search.sh <query> [days_ahead] [calendar_name] |

Date Format

Timed: YYYY-MM-DD HH:MM
All-day: YYYY-MM-DD

Recurrence

| Pattern | RRULE | |---------|-------| | Daily 10x | FREQ=DAILY;COUNT=10 | | Weekly M/W/F | FREQ=WEEKLY;BYDAY=MO,WE,FR | | Monthly 15th | FREQ=MONTHLY;BYMONTHDAY=15 |

Output

Events/search: UID | Summary | Start | End | AllDay | Location | Calendar
Read: Full details with description, URL, recurrence

Notes

Read-only calendars (Birthdays, Holidays) can't be modified
Calendar names are case-sensitive
Deleting recurring events removes entire series

Want to see if sundial-org/apple-calendar would activate on your phrasing? Try it before you install — no LLM call, no signup.

Other measured skills in the registry, with their headline benchmark lift.