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feat(run-engine): queue gates enforced from the message payload #4826

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matt-aitken wants to merge 8 commits into from
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feat(run-engine): queue gates enforced from the message payload #4826

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906cda7
feat(run-engine): queue gates enforced from the message payload
matt-aitken Aug 29, 2026
b899541
fix(run-engine): gates inherit the run key and never deadlock on thei…
matt-aitken Aug 29, 2026
2b85daf
fix(run-engine): reconcile prunes members whose runs are queued
matt-aitken Aug 29, 2026
b568120
fix(run-engine): reconcile group and gate members against the home co…
matt-aitken Aug 31, 2026
916c6b6
fix(run-engine): a gate's total limit counts keyed and keyless holder…
matt-aitken Sep 6, 2026
f8bb7b0
fix(run-engine): queue payloads accept three gates
matt-aitken Sep 6, 2026
c372d2b
docs(run-engine): the gate cap is three, matching the schema
matt-aitken Sep 6, 2026
8d9cc1e
fix(run-engine): queue payloads accept four gates
matt-aitken Sep 6, 2026
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1 change: 1 addition & 0 deletions apps/webapp/app/env.server.ts
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Expand Up @@ -1398,6 +1398,7 @@ const EnvironmentSchema = z
.enum(["log", "error", "warn", "info", "debug"])
.default("info"),
RUN_ENGINE_TOTAL_CONCURRENCY_LIMITS_ENABLED: z.string().default("1"),
RUN_ENGINE_QUEUE_GATES_ENABLED: z.string().default("0"),
RUN_ENGINE_TREAT_PRODUCTION_EXECUTION_STALLS_AS_OOM: z.string().default("0"),
RUN_ENGINE_READ_REPLICA_SNAPSHOTS_SINCE_ENABLED: z.string().default("0"),
RUN_ENGINE_SNAPSHOTS_SINCE_REPLICA_RETRY_MIN_MS: z.coerce.number().int().default(50),
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1 change: 1 addition & 0 deletions apps/webapp/app/v3/runEngine.server.ts
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Expand Up @@ -63,6 +63,7 @@ function createRunEngine() {
defaultEnvConcurrency: env.DEFAULT_ENV_EXECUTION_CONCURRENCY_LIMIT,
defaultEnvConcurrencyBurstFactor: env.DEFAULT_ENV_EXECUTION_CONCURRENCY_BURST_FACTOR,
totalConcurrencyEnabled: env.RUN_ENGINE_TOTAL_CONCURRENCY_LIMITS_ENABLED === "1",
gatesEnabled: env.RUN_ENGINE_QUEUE_GATES_ENABLED === "1",
logLevel: env.RUN_ENGINE_RUN_QUEUE_LOG_LEVEL,
redis: {
keyPrefix: "engine:",
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1 change: 1 addition & 0 deletions internal-packages/run-engine/src/engine/index.ts
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Expand Up @@ -210,6 +210,7 @@ export class RunEngine {
defaultEnvConcurrency: options.queue?.defaultEnvConcurrency ?? 10,
defaultEnvConcurrencyBurstFactor: options.queue?.defaultEnvConcurrencyBurstFactor,
totalConcurrencyEnabled: options.queue?.totalConcurrencyEnabled,
gatesEnabled: options.queue?.gatesEnabled,
logger: new Logger("RunQueue", options.queue?.logLevel ?? "info"),
redis: { ...options.queue.redis, keyPrefix: `${options.queue.redis.keyPrefix}runqueue:` },
retryOptions: options.queue?.retryOptions,
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2 changes: 2 additions & 0 deletions internal-packages/run-engine/src/engine/types.ts
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Expand Up @@ -93,6 +93,8 @@ export type RunEngineOptions = {
logLevel?: LogLevel;
/** Enforce per-queue total concurrency limits across concurrency-key variants. See RunQueueOptions.totalConcurrencyEnabled. */
totalConcurrencyEnabled?: boolean;
/** Enforce the gates carried in message payloads. See RunQueueOptions.gatesEnabled. */
gatesEnabled?: boolean;
/** Optional queue-metrics emitter; enables gauge + counter emission from the RunQueue. */
queueMetrics?: RunQueueMetricsEmitter;
queueSelectionStrategyOptions?: Pick<
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