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base repository: triggerdotdev/trigger.dev
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head repository: triggerdotdev/trigger.dev
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compare: mollifier-phase-1
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  • 1 commit
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Commits on May 13, 2026

  1. feat: trigger mollifier phase 1 scaffolding 

    Redis-backed burst-smoothing layer behind MOLLIFIER_ENABLED=0 (default).
With the kill switch off, the gate short-circuits on its first env check
and production behaviour is identical to main.

@trigger.dev/redis-worker:
- MollifierBuffer: atomic Lua-backed FIFO with accept / pop / ack /
  requeue / fail + TTL. Per-env queues with HSET entry storage,
  atomic RPOP + status transition, FIFO retry ordering.
- MollifierDrainer: generic round-robin worker with concurrency cap,
  retry semantics, and a stop deadline to avoid livelock on a hung
  handler. Phase 3 will wire the handler to engine.trigger().
- Full testcontainers-backed test suite (21 tests).

apps/webapp:
- evaluateGate cascade-check (kill switch -> org feature flag ->
  shadow mode -> trip evaluator -> mollify / shadow_log / pass_through).
  Dependencies injected for testability; the trip evaluator stub
  returns { divert: false } in phase 1.
- Inserted into RunEngineTriggerTaskService.call() before
  traceEventConcern.traceRun. The mollify branch throws (unreachable
  in phase 1).
- Lazy MollifierBuffer + MollifierDrainer singletons; no Redis
  connection unless MOLLIFIER_ENABLED=1.
- 12 MOLLIFIER_* env vars (all safe defaults) and a mollifierEnabled
  feature flag in the global catalog.
- Drainer booted from worker.server.ts on first import.
- Read-fallback stub for phase 3.
- Gate cascade tests + .env loader so env.server validates in vitest
  workers.

Phase 2 will land the real trip evaluator; phase 3 will activate the
buffer-write + drain path.
    @d-cs
    d-cs committed May 13, 2026
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