Smart Timeline Tool

Generate intelligent project timelines with dependency mapping, critical path identification, resource leveling, and milestone tracking for structured planning.

When to Use This Command

Run this command when...

• You need to quickly build a project timeline with task dependencies and identify the critical path that determines overall duration
• You want to detect scheduling conflicts, resource over-allocations, or unrealistic deadline commitments before work begins
• Your team requires a visual timeline with milestones for stakeholder communication and progress tracking

Do NOT use this command when...

• You need a full-featured Gantt chart tool with drag-and-drop editing and real-time collaboration
• Your project has fewer than three tasks and no dependencies worth modeling

Quick Start

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# .claude/commands/smart-timeline-tool.md
# Generate smart timeline
Create timeline for: $ARGUMENTS

Copy
# Run the command
claude "smart-timeline-tool mobile app launch with design, backend API, frontend, QA, and app store submission phases"

Expected output:
- Task list with duration estimates and dependencies
- Critical path highlighted
- Resource allocation per phase
- Milestone schedule with dates
- Risk-adjusted completion date range

Core Concepts

Concept	Description
Dependency Mapping	Links tasks by finish-to-start, start-to-start, or finish-to-finish relationships
Critical Path	Longest chain of dependent tasks determining minimum project duration
Resource Leveling	Adjusts schedule to prevent over-allocation of shared resources
Float/Slack	Amount of time a non-critical task can slip without affecting the end date
Milestone	Key checkpoint marking completion of a significant deliverable

Timeline Structure:

  [Design]---->[Frontend]---->[QA]---->[Launch]
      |             ^           ^
      |             |           |
      +------>[Backend API]----+

  Critical Path: Design > Frontend > QA > Launch
  Float Tasks:   Backend API (2 weeks slack)

  Milestones: * Design Complete  * API Ready
              * Beta Build       * Store Submit

Configuration

Parameter	Default	Description
Estimation Mode	Range (min/max)	Single-point, range, or three-point duration estimates
Resource Pool	Unlimited	Named resources with availability constraints
Calendar	5-day work week	Working days, holidays, and blackout periods
Buffer Strategy	10% contingency	How schedule buffer is allocated (end-loaded or distributed)
Output Format	Text timeline	ASCII Gantt, milestone list, or dependency table

Best Practices

1. List all tasks with rough durations -- even approximate estimates like "2-4 weeks" enable meaningful dependency analysis and critical path identification
2. State dependencies explicitly -- mention which tasks block others (e.g., "QA cannot start until frontend and backend are both complete") for accurate path analysis
3. Name your resources -- if specific people or teams own tasks, include them so resource leveling can detect over-allocation
4. Include external dependencies -- third-party approvals, vendor deliveries, and regulatory reviews often land on the critical path unexpectedly
5. Add buffer at milestones -- rather than padding every task, concentrate contingency buffer before major milestones where schedule risk has the highest consequence

Common Issues

1. Critical path seems too long -- look for parallelization opportunities. Tasks assumed sequential may actually be executable concurrently with proper coordination
2. Resource conflicts not detected -- ensure you specified resource names. Without named resources, the tool assumes unlimited capacity
3. Timeline feels overly optimistic -- switch to three-point estimation (optimistic/likely/pessimistic) and apply the PERT formula for more realistic duration calculations