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Joey Yakimowich-Payne 109be25be6
 feat(server): custom-modifier.register WS handler 
T3 Wave 4 (T24). Adds wire protocol + server handler for registering
user-authored custom modifier descriptors on a room's per-engine
custom registry (ADR-4).

Protocol:
- CustomModifierDescriptorSchema (Zod v3 mirror of the chess-side
  schema; structural validation only — primitive-kind semantics stay
  client-side to avoid duplicating the primitive catalog across the
  zod v3/v4 boundary).
- 'custom-modifier.register' client message carrying { roomCode,
  descriptor }.
- 'custom-modifier.registered' server broadcast mirroring the same
  shape out to every connected client in the room.
- New error codes: CUSTOM_MODIFIER_INVALID, CUSTOM_MODIFIER_LIMIT.

Handler:
- Auth + room-match checks matching the rest of the WS surface.
- Lazy per-room Map<id, CustomModifierDescriptorWire> created on first
  register.
- Capacity cap at 10 distinct ids per room (T3 DoS guard). Re-register
  with the same id REPLACES without consuming a new slot.
- On success: broadcasts to every connected client (proposer included
  — confirms server-authoritative state).

6 integration tests (mock ServerWebSocket harness; same pattern as
ws.modifier-profile-update.test.ts): happy-path accept+broadcast,
same-id replace, 11th-distinct rejection, roomCode mismatch, no-auth
rejection, malformed descriptor (schema layer). All green; 1369 unit
tests pass. Engine-side wire-up (late-joiner mirroring, client client.ts
subscriber) deferred to T25/T26 UI work.
2026-04-19 20:01:11 -06:00
.github/workflows chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
.sisyphus chore(sisyphus): mark T3 Wave 3 (validator/schema/library/apply/stacking) complete 2026-04-19 18:12:43 -06:00
docs docs(adr): T3 custom modifier DSL architecture decisions 2026-04-19 17:16:17 -06:00
packages feat(server): custom-modifier.register WS handler 2026-04-19 20:01:11 -06:00
scripts feat(rete): add replay engine + state-hash determinism verifier (P3.3) 2026-04-16 15:25:13 -06:00
.gitignore chore: ignore .org.chromium.Chromium.* runtime files 2026-04-19 10:20:42 -06:00
eslint.config.js feat(engine): damage-resistance modifier descriptor 2026-04-18 22:22:31 -06:00
lefthook.yml chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
LICENSE chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
package.json feat(rete): add replay engine + state-hash determinism verifier (P3.3) 2026-04-16 15:25:13 -06:00
playwright.config.ts fix(rete): inject clock into EventLog; use tsc for DTS; fix cycle.test.ts private access; add Playwright worker limit 2026-04-16 18:25:49 -06:00
README.md chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
tsconfig.base.json chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
tsconfig.json chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00
vitest.workspace.ts chore(root): scaffold monorepo — Phase 0 complete 2026-04-16 13:32:21 -06:00

README.md

@paratype

A Doorenbos-style Rete II rules engine for TypeScript games, with an authoritative WebSocket chess demo.

Packages

Docs

Getting Started

bun install && bun run check