feat(operations): add release soak test

Signed-off-by: Elyas Mehtabuddin <emehtabuddin@nvidia.com>

Author: elyasmnvidian

.gitignore

@@ -150,6 +150,7 @@ plans/
 
 # Benchmark result directories
 bench_results*/
+soak-results/
 jobs/**/*.*
 pytest-of-*/
 

Cargo.lock

@@ -11,6 +11,7 @@ members = [
     "crates/protocol",
     "crates/switchyard-server",
     "crates/switchyard-skill-distillation",
+    "crates/switchyard-soak",
     "crates/switchyard-translation",
 ]
 

Cargo.toml

@@ -0,0 +1,30 @@
+# SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+[package]
+name = "switchyard-soak"
+version.workspace = true
+description = "Sustained load tester for a live Switchyard server"
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+
+[[bin]]
+name = "switchyard-soak"
+path = "src/main.rs"
+
+[dependencies]
+clap = { version = "4", features = ["derive"] }
+futures-util.workspace = true
+parking_lot.workspace = true
+rand.workspace = true
+reqwest.workspace = true
+serde_json.workspace = true
+tokio.workspace = true
+
+[dev-dependencies]
+axum = "0.8"
+tempfile = "3"
+tokio.workspace = true