[Anchor Proposal]: Walking Skeleton

[cpoepke]

Proposed Term

Walking Skeleton

Context (Optional)

A minimal, production-capable implementation that spans all layers of a system (UI → backend → persistence → deployment pipeline). The purpose is to validate that the pieces fit together and can be shipped — eliminating architectural risk before any significant feature work begins.

Category: System Inception Patterns (see #414)

Why it qualifies:

• Precise: defined by Alistair Cockburn with clear scope (end-to-end, production-capable, architecture-validating)
• Rich: activates concepts around CI/CD readiness, integration risk, incremental architecture, delivery pipelines
• Consistent: practitioners reliably distinguish it from prototypes and spikes
• Attributable: Cockburn (Agile Software Development, 2001); applied in Freeman & Pryce (GOOS)

Distinguishes from:

• Tracer Bullet — exploratory/direction-finding vs production-capable/architecture-validating
• Thin Vertical Slice — system-wide validation vs feature-oriented delivery
• Spike Solution — end-to-end integrated vs isolated experiment

References:

• Alistair Cockburn — Agile Software Development (2001): https://www.pearson.com/en-us/subject-catalog/p/agile-software-development/P200000007027
• c2 Wiki — Walking Skeleton: https://wiki.c2.com/?WalkingSkeleton
• Freeman & Pryce — Growing Object-Oriented Software, Guided by Tests: https://www.pearson.com/en-us/subject-catalog/p/growing-object-oriented-software-guided-by-tests/P200000009741

Pre-submission Checklist

• I have searched existing anchors and this term is not already included
• This term refers to a well-established concept (not something I invented)

[raifdmueller]

Valid and well-researched proposal. Walking Skeleton (Cockburn) is an established, precise pattern.

Accepting the anchor but placing it in software-architecture instead of the proposed new "System Inception Patterns" category — see #414 for the rationale. The defining property is architectural validation end-to-end, which fits architecture.

Will proceed with the PR.

[raifdmueller]

Merged via #425. Walking Skeleton is now in the catalog under software-architecture — thanks for the careful proposal! (Ready to close.)