kanban-wip-limits

Calculates and applies WIP limits per Kanban column using Little's Law to expose bottlenecks.

1|Updated Mar 25, 2026
One-click install
npx skills add https://github.com/NestorMonroy/thyrox --skill kanban-wip-limits-nestormonroy
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: kanban-wip-limits
Source: https://github.com/NestorMonroy/thyrox/tree/main/.claude/skills/kanban-wip-limits
Command: npx skills add https://github.com/NestorMonroy/thyrox --skill kanban-wip-limits-nestormonroy

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Teams that start too many tasks at once finish few of them: lead time grows, throughput stays flat, and bottlenecks stay hidden. This Skill turns a Kanban board into a pull system by setting visible Work In Progress limits per column and per person, so work is pulled only when capacity exists. ## Core Features & Use Cases - WIP limit calculation: Sizes limits with Little's Law (WIP = throughput × lead time) or with startup heuristics per column when no flow data exists yet. - Pull system instrumentation: Defines explicit pull signals and a swarming protocol so the team unblocks downstream work instead of starting new work when a limit is reached. - Metric-driven calibration: Reviews and adjusts limits using throughput, lead time, and Cumulative Flow Diagrams. - Use Case: A team whose 'In Development' column holds 12 cards for 4 developers applies this Skill to set a limit of 5, define the pull rule, and watch the QA bottleneck become visible within a week. ## Quick Start Ask the assistant to calculate and apply WIP limits for each column of your Kanban board using Little's Law and your team's throughput data.

Frequently Asked Questions about kanban-wip-limits

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate WIP limits for a Kanban board?▼

Use Little's Law: WIP = throughput × lead time. If your team delivers 5 cards per week and targets a 1-week lead time, system WIP should be around 5. Without flow data, start with one card per person per active column and calibrate later with metrics.

What is a pull system in Kanban?▼

A pull system means work is only taken when the destination column has free capacity under its WIP limit. When a column is at its limit, nobody starts new work; instead the team swarms to unblock or finish the card holding the bottleneck downstream.

What should the team do when a WIP limit is reached?▼

The correct response is swarming: converge to unblock or finish the card retaining the bottleneck downstream rather than opening new work upstream. Starting new work at the limit is the central anti-pattern that erodes the discipline.

When should I not apply WIP limits?▼

Do not apply limits on a board whose columns do not reflect the real flow; fix the board setup first, since a limit on a false model manages a fiction. Also avoid limits set by decree that are never reviewed against actual flow data.

What are the limitations of Little's Law for WIP limits?▼

Little's Law assumes a stable system where arrivals roughly match departures over the period. With highly variable work or very uneven card sizes, the calculated WIP is a guide rather than a guarantee, so complement it with cycle time distribution analysis.