Clean · 5-minute read

URL shortener

A deliberately small fictional project. HLD, a handful of LLDs, EARS specs — no implementation. The challenge: delete the intent tree, regenerate it; delete the code, regenerate that too. When the docs are the source of truth, either can be recreated from either.

Browse examples/urlshort/

This example may not exist yet — check the repo tree. It ships alongside the plugins.

Real · long-running

Threadkeeper

A working project that has used LID for months. The LLDs are striated — multiple generations, uneven coherence, the honest shape any living system acquires. Not a teaching example. A stress test for cascade discipline, and a proof that LID survives real conditions.

Visit threadkeeper.app

The live product is at threadkeeper.app. Internal design docs aren't public, but the shape of the project shows LID at work over time.