Run2 pdf calendar parsing

Skill cxcscmu/SkillLearnBench/skills/b2-self-feedback-claude-sonnet-4-6/schedule-planning/run2_pdf-calendar-parsing

[COLM'26] SkillLearnBench is the first benchmark for evaluating continual learning methods that automatically generate agent skills.

Install

npx -y skills add cxcscmu/SkillLearnBench --skill run2_pdf-calendar-parsing

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What its author says it does

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Precisely parse a PDF day-view calendar to extract event times, durations, and colors by reading visual block positions and the 15-minute grid.

SKILL.md

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PDF Calendar Parsing (Improved)

Grid Structure

Each hour label (12am, 1am, …, 11pm) marks the TOP of that hour's row
Between two adjacent dashed horizontal lines = 15 minutes
4 intervals per hour

Reading Block Times — Step by Step

Find the hour label closest ABOVE the block's top edge
Count how many 15-min ticks down from that label to the block's top → start time
Find the hour label closest ABOVE the block's bottom edge
Count ticks to block bottom → end time
If a block starts exactly at a label, start = that label's time on the dot

Color Classification

Color	Hex range (approx)	Status
Dark gray	R<100, G<100, B<100	Busy (OOO)
Red/salmon	R>200, G<150, B<150	Busy
Blue/purple	R~~130, G~~130, B~200-230	Available (overwritable)
Lime/yellow-green	R>150, G>180, B<100	Busy

Example Calendar — March 9, 2026

12:00 AM – 08:00 AM  Out of office         (gray)   BUSY
08:00 AM – 10:00 AM  [empty]                         FREE
10:00 AM – 11:00 AM  Weekly Group Meeting  (red)    BUSY
11:00 AM – 12:00 PM  Busy with task B      (BLUE)   FREE (overwritable)
12:00 PM – 02:00 PM  [empty]                         FREE
02:00 PM – 03:00 PM  Project A Discussion  (red)    BUSY
03:00 PM – 03:15 PM  Coffee Chat           (lime)   BUSY  ← 1 tick = 15 min
03:15 PM – 06:00 PM  [empty]                         FREE
06:00 PM – 12:00 AM  Out of office         (gray)   BUSY

Thin Block Disambiguation

A block taking exactly ONE 15-min slot looks like a thin line just above a dashed separator.

If the label is at 3pm and the block bottom aligns with the first dashed line below → 3:00–3:15

Python extraction with pdfplumber

import pdfplumber

with pdfplumber.open("calendar.pdf") as pdf:
    text = pdf.pages[0].extract_text()
    # Text output lists event names and time labels
    # Visual block colors require image analysis