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SKILL verified MIT Self-run

Date Picker Widget

skill-bettyguo-browser-skills-date-picker-widget · by bettyguo

Picks a date in a calendar-style date-picker widget — clicks the input, navigates months if needed, clicks the target day. The famous "vision agent failure case" that motivates this whole library.

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Install

$ agentstack add skill-bettyguo-browser-skills-date-picker-widget

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

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Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

Date Picker Widget

When to invoke

The user task requires picking a date (booking demos, scheduling demos, date-range filters). vars.target_date is an ISO-8601 date string (e.g., "2026-06-15").

The matcher recognizes calendar widgets via their ARIA roles. The ` native picker is the easy path — fill` it directly. The hard path is custom calendars (booking.com, airbnb.com, hotels.com style), and that's what this skill targets.

Recipe

Easy path (native ``)

  1. fill selector="input[type='date']" value="$vars.target_date"

Hard path (custom calendar)

  1. waitfordom_ready timeout=3s
  2. click selector="[data-element='calendar-trigger'], [aria-label*='date' i][role='button']"
  3. waitforselector selector="[role='dialog'][aria-label*='calendar' i]" state=visible timeout=2s
  4. click selector="[aria-label='$vars.targetdate'], [data-date='$vars.targetdate']"
  5. wait extra=300ms

(Month-navigation logic — "click 'next month' until target month is visible" — is deferred to v0.2 with the loop verb. v0.1 handles the case where the target date is already visible on the initial calendar open. For booking-style sites where check-in is in the current month, this is enough.)

Success criteria

  • assert inputhasvalue selector="[data-element='check-in']" valuecontains="$vars.targetdate"

When NOT to use

  • Date range pickers — use vars.range_start / vars.range_end and

the agent composes two invocations.

  • Calendars that don't expose aria-label or data-date attributes

on day cells. Vision fallback is currently the only recourse.

Known failures

  • Disabled past dates: the click is ignored. The agent sees no

state change and should re-plan.

  • Calendars opening below the fold: the day cells render but

aren't clickable until scrolled. Add a scroll_into_view step.

  • Calendars that require keyboard nav only: v0.1 doesn't support

keyboard nav loops; the press_key primitive could be composed but there's no standardized pattern.

  • Month navigation: v0.1 only picks dates in the currently-visible

month. v0.2 adds month-navigation loops.

Related skills

  • dismiss-cookie-banner — booking sites are EU-heavy; cookie banner first
  • verify-page-loaded — wait for the calendar UI to render
  • searchable-dropdown — often co-occurs (date + party-size selectors)

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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