What problem does it solve? Designing a balanced Jev Catcher fielding session requires tuning physics parameters by hand, and without guidance it is easy to ship a session where Jev never drops a ball or drops every single one. ## Core Features & Use Cases - Difficulty Tuning: Adjust fallTicks (ball fall speed) and gloveReach (catch precision radius) to shape how often Jev catches or drops pop flies. - Session Crafting: Write a distinct style line plus truthful title and description so each published catcher.json is a deliberate, testable session rather than a template copy. - Validation Workflow: Verify every session with node "$JEV_DSH/toolchain/check.mjs" and confirm the fielding loop behaves — clean catches at slow falls, leaks at fast falls. - Use Case: Create a tense session by setting fallTicks to 7 with a tight gloveReach of 0.5, then watch Jev read landing spots precisely but start missing when balls come in fast. ## Quick Start Create a new catcher.json session with fallTicks around 7 and a narrow gloveReach, then validate it with the toolchain check script and confirm Jev drops the fast pop flies.
