Agent-Skills.md

Agent Skills: Focus, Timeboxing, and 80/20

Use when managing time and attention, combating procrastination or context-switching, prioritizing high-impact work, planning daily/weekly schedules, improving focus and productivity, or when user mentions timeboxing, Pomodoro, deep work, 80/20 rule, Pareto principle, focus blocks, task batching, energy management, or needs structured approach to getting important work done.

UncategorizedID: lyndonkl/claude/focus-timeboxing-8020

Repository

lyndonkl/claude
lyndonkl
456

Install this agent skill to your local

pnpm dlx add-skill https://github.com/lyndonkl/claude/tree/HEAD/skills/focus-timeboxing-8020

Skill Files

Browse the full folder contents for focus-timeboxing-8020.

Download Skill

Loading file tree…

skills/focus-timeboxing-8020/SKILL.md

Skill Metadata

Name
focus-timeboxing-8020
Description
Combines Pareto prioritization (80/20), timeboxing, and deep work techniques to manage attention, eliminate context-switching, and maximize high-impact output. Use when managing time and attention, combating procrastination, prioritizing high-impact work, planning daily/weekly schedules, or when user mentions timeboxing, Pomodoro, deep work, 80/20 rule, Pareto principle, focus blocks, task batching, or energy management.

Focus, Timeboxing, and 80/20

Table of Contents

Example

Scenario: Engineer overwhelmed with tickets, meetings, code reviews, and a complex feature.

80/20: Ship payment feature (biggest customer request, revenue impact) = vital 20%.

Weekly Plan:

  • Mon-Wed mornings (9-12): Deep work on payment feature (no meetings, Slack off)
  • Mon-Wed afternoons: Code reviews, standups, pair programming
  • Thu-Fri: Batch meetings, planning, admin, lower-priority tickets

Outcome: Feature shipped in 3 days (18 hours deep work) vs. estimated 2+ weeks with constant interruptions.

Workflow

Copy this checklist and track your progress:

Focus & Timeboxing Progress:
- [ ] Step 1: Identify your 80/20
- [ ] Step 2: Design focus blocks
- [ ] Step 3: Timebox your week
- [ ] Step 4: Timebox your day
- [ ] Step 5: Execute with discipline
- [ ] Step 6: Review and adjust

Step 1: Identify your 80/20

What 20% of tasks drive 80% of your results? Separate vital few from trivial many. See resources/template.md.

Step 2: Design focus blocks

Block time for deep work on high-impact tasks. Match duration to task type (Pomodoro 25min, Deep Work 90-120min). See resources/template.md and resources/methodology.md.

Step 3: Timebox your week

Allocate weekly calendar: deep work blocks, meeting blocks, batched admin, buffer time. See resources/template.md and resources/methodology.md.

Step 4: Timebox your day

Break day into time-constrained blocks with start/end times. Schedule breaks. Plan evening hard stop. See resources/template.md.

Step 5: Execute with discipline

Honor timeboxes. Use timers. Eliminate distractions (Slack off, phone away, close tabs). Take breaks. See resources/methodology.md.

Step 6: Review and adjust

Weekly review: Did you protect deep work? What interrupted focus? Adjust schedule. See resources/template.md and resources/methodology.md.

Validate using resources/evaluators/rubric_focus_timeboxing_8020.json. Minimum standard: Average score ≥ 3.5.

Common Patterns

Pattern 1: Pomodoro Technique (25 min focus)

  • Format: 25 min focused work + 5 min break, repeat 4×, then 15-30 min break
  • Best for: Tasks with high resistance (procrastination), need for frequent breaks, building focus habit
  • Tools: Timer, task list, distraction blockers
  • When: Short tasks, starting new habits, high-distraction environments
  • Guardrails: Don't interrupt Pomodoro mid-session, actually take breaks (don't skip)

Pattern 2: Deep Work Blocks (90-120 min)

  • Format: 90-120 min uninterrupted focus on single cognitively demanding task
  • Best for: Complex thinking (writing, coding, design, strategy), high-value creative work
  • Preparation: Clear goal for session, all resources ready, distractions eliminated
  • When: Peak energy hours (usually morning), maximum 2-3 blocks per day
  • Guardrails: No meetings during deep work, Slack/email off, phone in another room

Pattern 3: Weekly 80/20 Planning

  • Format: Sunday/Monday - identify top 3 high-impact goals for week, schedule deep work blocks
  • Best for: Strategic prioritization, ensuring vital few get attention
  • Output: 3-5 focus blocks (90-120 min each) on calendar for week's top priorities
  • When: Start of week, quarterly planning, project kickoffs
  • Guardrails: Protect these blocks ruthlessly, treat like unmovable meetings

Pattern 4: Task Batching (30-60 min blocks)

  • Format: Group similar low-cognitive-load tasks (emails, calls, admin) into single session
  • Best for: Reducing context-switching, clearing small tasks efficiently
  • Examples: Email batches (11am, 4pm), meeting blocks (Tue/Thu afternoons), admin Fridays
  • When: Low-energy periods, after deep work, end of day
  • Guardrails: Set timer, don't let batches expand, resist checking email outside batches

Pattern 5: Maker's Schedule (Half-day or Full-day blocks)

  • Format: Uninterrupted half-days (4+ hours) or full days for creative/technical work
  • Best for: Large projects (research paper, product launch, complex feature), flow-state work
  • Preparation: Clear all meetings for that period, OOO on Slack, backup plan if interrupted
  • When: Critical deadlines, breakthrough work needed, once/week minimum for makers
  • Guardrails: Communicate boundaries, delegate urgent issues, plan breaks within block

Pattern 6: Energy-Based Scheduling

  • Format: Match task type to energy level (peak → deep work, trough → admin, recovery → meetings)
  • Best for: Maximizing output while preventing burnout
  • Typical cycle: Peak (9am-12pm) → Trough (2-3pm) → Recovery (4-5pm)
  • When: Designing weekly/daily schedules, recovering from overwork
  • Guardrails: Track your actual energy patterns (not generic), honor low-energy periods with rest

Guardrails

  1. Protect deep work time: No meetings, no Slack, no email during focus blocks. One interruption destroys 20+ minutes of flow. Schedule deep work during peak energy (usually mornings).

  2. Use Parkinson's Law: Work expands to fill available time. Shorter timeboxes force prioritization and prevent perfectionism. A 90-minute timebox with a clear outcome beats open-ended "work on this."

  3. Identify the 80/20: Force rank tasks by impact. The top 20% should get 80% of focus time. Cut, delegate, or batch the rest.

  4. Energy matters more than time: 8 hours tired produces less than 4 hours energized. Match intensity to energy level. Troughs are for admin and meetings, not complex thinking.

  5. Build in buffer: Leave ~20% unscheduled for unexpected issues, overflow, and breaks. Over-scheduling is fragile; one delay cascades.

  6. Set hard stops: Define an end-of-day time. Constrained time forces prioritization; endless time enables procrastination.

  7. Take breaks: After 90 minutes of deep work, take 10-15 minutes. Walk, stretch, look outside. Focus degrades after 90-120 minutes without a break.

  8. Measure focus quality, not hours: 3 hours of deep work outperforms 8 hours of distracted work. Track completed focus blocks per week, not total hours.

Common pitfalls:

  • ❌ No real deep work blocks: Calendar full of meetings, "focus time" constantly interrupted. Protect minimum 2-3× 90-min blocks per week.
  • ❌ Ignoring 80/20: Everything feels important. Force rank. If you can't identify top 20%, ask: "If I could only work 10 hours this week, what would I do?"
  • ❌ Timeboxing trivia: Scheduling every email, every Slack message. Batch low-value tasks, don't timebox them individually.
  • ❌ Skipping breaks: "I'll break after I finish this." Then work 4 hours straight, output quality tanks. Use timer, force breaks.
  • ❌ Peak hours on admin: Checking email at 9am (peak energy). Save admin for afternoon trough. Peak hours = deep work only.
  • ❌ Overcommitting: Timeboxing 10 hours of work into 8-hour day. Be realistic. Under-schedule, over-deliver.

Quick Reference

Timeboxing durations:

| Duration | Best For | Rest After | |----------|----------|------------| | 25 min | Pomodoro, high-resistance tasks, building habit | 5 min | | 50 min | Focused work, moderate complexity | 10 min | | 90 min | Deep work, complex thinking, creative tasks | 15 min | | 120 min | Maximum deep work (rare, high expertise) | 20-30 min | | Half-day (4h) | Maker's schedule, breakthroughs, flow state | Lunch + afternoon off |

Energy-based scheduling:

| Time | Energy Level | Task Type | Examples | |------|--------------|-----------|----------| | 6-9am | Peak (early risers) | Deep work | Writing, coding, strategy | | 9am-12pm | Peak (most people) | Deep work | Complex problems, creative work | | 12-2pm | Lunch dip | Meetings, social | Standups, 1:1s, collaboration | | 2-3pm | Trough | Admin, batching | Email, Slack, expense reports | | 3-5pm | Recovery | Moderate work | Code reviews, planning, lighter tasks | | Evening | Low | Rest or routine | Reading, exercise, NOT deep work |

80/20 identification:

Ask these questions:

  • "If I could only work 10 hours this week, what would I do?"
  • "Which tasks, if done well, make everything else easier or unnecessary?"
  • "What creates 10× value vs. 1× value?"
  • "What will matter in 6 months? What won't?"

Focus blockers (eliminate during deep work):

  • [ ] Slack/Teams (quit app or set DND)
  • [ ] Email (close tab/app)
  • [ ] Phone (different room, airplane mode)
  • [ ] Browser tabs (close all except work-related)
  • [ ] Open floor plans (noise-canceling headphones, office door)
  • [ ] Notifications (disable all)
  • [ ] Meetings (schedule-free mornings)

Batching categories:

  • Email batches: 11am, 4pm (2× per day max)
  • Meeting blocks: Tue/Thu afternoons
  • Admin batch: Friday afternoons (expense reports, timesheets, planning)
  • Code review batch: After lunch (30-60 min)
  • Quick calls batch: 30-min slots back-to-back

Weekly planning template (simplified):

Monday-Wednesday mornings: Deep work on Priority 1 (3× 90-min blocks)
Monday-Wednesday afternoons: Meetings, collaboration, moderate work
Thursday: Deep work on Priority 2 (morning), meetings (afternoon)
Friday: Batched admin, planning next week, code reviews

Inputs required:

  • Current commitments: Meetings, recurring tasks, deadlines
  • Energy patterns: When are you most/least energized? (track for 1 week)
  • Top priorities: What are your 3-5 most important outcomes this week/month?
  • Task list: Everything competing for attention (to identify 80/20)

Outputs produced:

  • weekly-timeboxed-schedule.md: Calendar with focus blocks, meeting blocks, batch times
  • daily-plan.md: Time-blocked day with start/end times, breaks scheduled
  • 8020-analysis.md: Prioritized task list with vital few identified
  • focus-time-tracker.csv: Log of focus blocks completed, quality, interruptions