diff --git a/.github/workflows/emerald.yml b/.github/workflows/emerald.yml
index 2102666..c6e2604 100644
--- a/.github/workflows/emerald.yml
+++ b/.github/workflows/emerald.yml
@@ -34,6 +34,18 @@ jobs:
         uses: actions/checkout@v5
         with:
           submodules: recursive
+
+      - id: filter
+        uses: dorny/paths-filter@v3
+        with:
+          filters: |
+            code:
+              - '**/.rs'
+              - 'Makefile'
+              - '**/Cargo.toml'
+              - '**/Cargo.lock'
+              - '**/.sh'
+              - '*/workflows/emerald.yml'
       - name: Install Protoc
         uses: arduino/setup-protoc@v3
         with:
@@ -46,6 +58,7 @@ jobs:
         uses: foundry-rs/foundry-toolchain@v1
       - name: Run Forge build
         run: forge build
+        if: steps.filter.outputs.code == 'true'
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
@@ -54,14 +67,14 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Run emerald
         run: |
-          cargo build
-          ./scripts/generate_testnet_config.sh --nodes 3 --testnet-config-dir .testnet --fee-recipient 0x0000000000000000000000000000000000000042
+          ./scripts/generate_testnet_config.sh --nodes 4 --testnet-config-dir .testnet --fee-recipient 0x0000000000000000000000000000000000000042
           cargo run --bin emerald -- testnet --home nodes --testnet-config .testnet/testnet_config.toml
           ls nodes/*/config/priv_validator_key.json | xargs -I{} cargo run --bin emerald show-pubkey {} > nodes/validator_public_keys.txt
           cargo run --bin emerald-utils genesis --public-keys-file ./nodes/validator_public_keys.txt --devnet
-          docker compose up -d reth0 reth1 reth2 prometheus grafana otterscan
-          ./scripts/add_peers.sh --nodes 3
-          bash scripts/spawn.bash --nodes 3 --home nodes --no-delay --no-wait
+          docker compose up -d reth0 reth1 reth2 reth3 prometheus grafana otterscan
+          ./scripts/add_peers.sh --nodes 4
+          bash scripts/spawn.bash --nodes 4 --home nodes --no-delay --no-wait
+        if: steps.filter.outputs.code == 'true'
 
       - name: Upload test logs
         if: failure()
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a144f97..1f9c5f8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,6 +33,17 @@ jobs:
         uses: actions/checkout@v5
         with:
           submodules: recursive
+      - id: filter
+        uses: dorny/paths-filter@v3
+        with:
+          filters: |
+            code:
+              - '**/.rs'
+              - 'Makefile'
+              - '**/Cargo.toml'
+              - '**/Cargo.lock'
+              - '**/.sh'
+              - '*/workflows/test.yml'
       - name: Install Protoc
         uses: arduino/setup-protoc@v3
         with:
@@ -45,6 +56,7 @@ jobs:
         uses: foundry-rs/foundry-toolchain@v1
       - name: Run Forge build
         run: forge build
+        if: steps.filter.outputs.code == 'true'
       - name: Run tests
         run: |
           cargo nextest run \
@@ -52,3 +64,4 @@ jobs:
             --all-features \
             --no-fail-fast \
             --failure-output final
+        if: steps.filter.outputs.code == 'true'