diff --git a/evals/.gitignore b/evals/.gitignore
new file mode 100644
index 00000000..523f67aa
--- /dev/null
+++ b/evals/.gitignore
@@ -0,0 +1,3 @@
+results/
+.venv/
+uv.toml
diff --git a/evals/README.md b/evals/README.md
index 878f40bb..c4007cf7 100644
--- a/evals/README.md
+++ b/evals/README.md
@@ -4,7 +4,7 @@ This directory contains the evaluation suite for the main functionalities of the
 
 ## Overview
 
-The evaluation uses the [evalbench](https://github.com/GoogleCloudPlatform/evalbench) framework with the Gemini CLI and Claude Code orchestrator to run a set of simulated user tasks against the agent.
+The evaluation uses the [evalbench](https://github.com/GoogleCloudPlatform/evalbench) framework with the various agent harness orchestrators to run a set of simulated user tasks.
 
 ## Configuration Files
 
@@ -33,12 +33,25 @@ The suite evaluates the agent across several dimensions using the following scor
 
 ## How to Run
 
-From the `evals/` directory, execute the evaluation using latest [evalbench](https://github.com/GoogleCloudPlatform/evalbench/releases):
-
+From the `evals/` directory, run the evaluation using `uvx`:
 ```bash
 cd evals/
-evalbench run core-cujs/run_gemini_cli.yaml      # Gemini CLI
-evalbench run core-cujs/run_claude.yaml          # Claude Code
+UV_CONFIG_FILE=uv.toml uvx --index-url https://pypi.org/simple/ google-evalbench --experiment_config=core-cujs/run_gemini_cli.yaml
 ```
 
-Results will be generated in the `results/` directory as CSV reports.
+### Local Execution Caveats
+Unlike CI (which auto-injects values and queries the metadata server), running locally requires these specific alignments:
+
+1.  **Node Version**: Switch your active shell session to Node v20+ before running to support modern regular expressions:
+    ```bash
+    source ~/.nvm/nvm.sh && nvm use 20
+    ```
+2.  **Dirty State Cleanup**: If a run crashes midway, wipe the dirty extension installation before retrying:
+    ```bash
+    rm -rf .venv/fake_home/.gemini/extensions/google-cloud-db-context-engineering
+    ```
+3.  **Environment Variables**: Before executing a run, ensure you have exported your GCP project ID and the global endpoint location:
+    ```bash
+    export GOOGLE_CLOUD_PROJECT="your-gcp-project-id"
+    export GOOGLE_CLOUD_LOCATION="global"
+    ```
diff --git a/evals/core-cujs/run_gemini_cli.yaml b/evals/core-cujs/run_gemini_cli.yaml
index 48e31ade..84dc5067 100644
--- a/evals/core-cujs/run_gemini_cli.yaml
+++ b/evals/core-cujs/run_gemini_cli.yaml
@@ -36,4 +36,4 @@ reporting:
   csv:
     output_directory: 'results'
   bigquery:
-    gcp_project_id: "${EVAL_REPORTING_PROJECT}"
+    gcp_project_id: !ENV "${EVAL_REPORTING_PROJECT}"
diff --git a/evals/model_configs/gemini_model.yaml b/evals/model_configs/gemini_model.yaml
index 4bb440a0..96a46ae4 100644
--- a/evals/model_configs/gemini_model.yaml
+++ b/evals/model_configs/gemini_model.yaml
@@ -1,4 +1,6 @@
 generator: gcp_vertex_gemini
 vertex_model: gemini-3-flash-preview
+gcp_project_id: !ENV "${GOOGLE_CLOUD_PROJECT}"
+gcp_region: !ENV "${GOOGLE_CLOUD_LOCATION}"
 base_prompt: ""
 execs_per_minute: 5