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+# OP Stack Acceptance Tests
+
+## Overview
+
+This directory contains the acceptance tests and configuration for the OP Stack. These tests are executed by `op-acceptor`, which serves as an automated gatekeeper for OP Stack network promotions.
+
+Think of acceptance testing as Gandalf 🧙, standing at the gates and shouting, "You shall not pass!" to networks that don't meet our standards. It enforces the "Don't trust, verify" principle by:
+
+- Running automated acceptance tests
+- Providing clear pass/fail results (and tracking these over time)
+- Gating network promotions based on test results
+- Providing insight into test feature/functional coverage
+
+The `op-acceptor` ensures network quality and readiness by running a comprehensive suite of acceptance tests before features can advance through the promotion pipeline:
+
+Localnet -> Alphanet → Betanet → Testnet
+
+This process helps maintain high-quality standards across all networks in the OP Stack ecosystem.
+
+## Usage
+
+The tests can be run using the `just` command runner:
+
+```bash
+# Run the default acceptance tests against a simple devnet
+just
+
+# Run the acceptance tests against a specific devnet and gate
+just acceptance-test <devnet> <gate>
+
+# Run the acceptance tests using a specific version of op-acceptor
+ACCEPTOR_IMAGE=op-acceptor:latest just acceptance-test
+```
+
+### Configuration
+
+- `acceptance-tests.yaml`: Defines the validation gates and the suites and tests that should be run for each gate.
+- `justfile`: Contains the commands for running the acceptance tests.
+
+## Adding New Tests
+
+To add new acceptance tests:
+
+1. Create your test in the appropriate Go package (as a regular Go test)
+2. Register the test in `acceptance-tests.yaml` under the appropriate gate
+3. Follow the existing pattern for test registration:
+   ```yaml
+   - name: YourTestName
+     package: github.com/ethereum-optimism/optimism/your/package/path
+   ```
+
+## Further Information
+
+For more details about `op-acceptor` and the acceptance testing process, refer to the main documentation or ask the team for guidance.
+
+The source code for `op-acceptor` is available at [github.com/ethereum-optimism/infra/op-acceptor](https://github.com/ethereum-optimism/infra/tree/main/op-acceptor). If you discover any bugs or have feature requests, please open an issue in that repository.
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diff --git a/op-acceptance-tests/acceptance-tests.yaml b/op-acceptance-tests/acceptance-tests.yaml
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+# Configuration file for acceptance tests (op-acceptor)
+#
+# All acceptance tests need to be registered here for op-acceptor to run them.
+#
+# Note: The current acceptance tests are placeholders; real ones to come soon.
+
+gates:
+  - id: localnet
+    description: "Localnet validation gate"
+    tests:
+      - name: TestFindRPCEndpoints
+        package: github.com/ethereum-optimism/optimism/kurtosis-devnet/pkg/kurtosis/api/run
+      - name: TestSystemWrapETH
+        package: github.com/ethereum-optimism/optimism/kurtosis-devnet/tests/interop
+      - name: TestInteropSystemNoop
+        package: github.com/ethereum-optimism/optimism/kurtosis-devnet/tests/interop
+
diff --git a/op-acceptance-tests/justfile b/op-acceptance-tests/justfile
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+REPO_ROOT := `realpath ..`
+KURTOSIS_DIR := REPO_ROOT + "/kurtosis-devnet"
+ACCEPTOR_IMAGE := env_var_or_default("ACCEPTOR_IMAGE", "us-docker.pkg.dev/oplabs-tools-artifacts/images/op-acceptor:v0.1.1")
+
+# Default recipe - runs the acceptance tests with default parameters
+default:
+    @just acceptance-test
+
+# Run acceptance tests against a devnet
+acceptance-test devnet="simple" gate="localnet":
+    #!/usr/bin/env bash
+    set -euo pipefail
+
+    # First run the appropriate devnet from the kurtosis-devnet directory if needed.
+    # We ignore failures here because if the devnet is already running then this command will fail.
+    just {{KURTOSIS_DIR}}/{{ devnet }}-devnet || true
+
+    # Print which image is being used (for debugging)
+    echo "Using acceptor image: {{ACCEPTOR_IMAGE}}"
+
+    # Run op-acceptor with the repository mounted at the correct Go module path
+    docker run \
+        -v "$(pwd)/acceptance-tests.yaml:/acceptance-tests.yaml" \
+        -v "{{REPO_ROOT}}:/go/src/github.com/ethereum-optimism/optimism" \
+        {{ACCEPTOR_IMAGE}} \
+        --testdir "/go/src/github.com/ethereum-optimism/optimism" \
+        --gate {{gate}} \
+        --validators /acceptance-tests.yaml \
+        --log.level info