diff --git a/Cargo.lock b/Cargo.lock
index 27e1d0f9..cf2882f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -494,6 +494,7 @@ dependencies = [
  "ed25519-dalek",
  "elliptic-curve 0.14.0-rc.31",
  "enum_dispatch",
+ "env_logger",
  "flate2",
  "futures",
  "generic-array 1.4.1",
@@ -528,6 +529,7 @@ dependencies = [
  "spki 0.8.0",
  "ssh-encoding",
  "subtle",
+ "tempfile",
  "thiserror 2.0.18",
  "tokio",
  "typenum",
@@ -1482,6 +1484,29 @@ dependencies = [
  "syn 2.0.117",
 ]
 
+[[package]]
+name = "env_filter"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32e90c2accc4b07a8456ea0debdc2e7587bdd890680d71173a15d4ae604f6eef"
+dependencies = [
+ "log",
+ "regex",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.11.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0621c04f2196ac3f488dd583365b9c09be011a4ab8b9f37248ffcc8f6198b56a"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "env_filter",
+ "jiff",
+ "log",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -2350,6 +2375,30 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
+[[package]]
+name = "jiff"
+version = "0.2.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f00b5dbd620d61dfdcb6007c9c1f6054ebd75319f163d886a9055cec1155073d"
+dependencies = [
+ "jiff-static",
+ "log",
+ "portable-atomic",
+ "portable-atomic-util",
+ "serde_core",
+]
+
+[[package]]
+name = "jiff-static"
+version = "0.2.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e000de030ff8022ea1da3f466fbb0f3a809f5e51ed31f6dd931c35181ad8e6d7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "jobserver"
 version = "0.1.34"
@@ -3352,6 +3401,15 @@ version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c33a9471896f1c69cecef8d20cbe2f7accd12527ce60845ff44c153bb2a21b49"
 
+[[package]]
+name = "portable-atomic-util"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a106d1259c23fac8e543272398ae0e3c0b8d33c88ed73d0cc71b0f1d902618"
+dependencies = [
+ "portable-atomic",
+]
+
 [[package]]
 name = "potential_utf"
 version = "0.1.5"
diff --git a/crates/bssh-russh/Cargo.toml b/crates/bssh-russh/Cargo.toml
index cf5c9bda..9e72a202 100644
--- a/crates/bssh-russh/Cargo.toml
+++ b/crates/bssh-russh/Cargo.toml
@@ -101,3 +101,13 @@ ssh-key = { version = "=0.6.18", features = [
     "ppk",
     "hazmat-allow-insecure-rsa-keys",
 ], package = "internal-russh-forked-ssh-key" }
+
+[dev-dependencies]
+# Dev-deps required by the inline test modules imported from upstream russh
+# (src/client/test.rs, src/keys/mod.rs, src/tests.rs). Without these, the fork's
+# test target never compiles.
+env_logger = "0.11"
+tempfile = "3"
+# Additive: merges with the main tokio dep to add the `process` and `macros`
+# features needed by the spawn-ssh-agent helpers and #[tokio::test].
+tokio = { version = "1.52.1", features = ["process", "macros"] }