About genai-hub-prompt-evaluation
A skill for evaluating prompts and orchestration configurations in SAP AI Core's generative AI hub. It runs dataset-based evaluations and retrieves aggregate or per-row results, covering prompt, model, and RAG orchestration evaluations.
Key features
- 01Register evaluation dataset artifacts
- 02Create or reuse evaluation metrics
- 03Evaluate prompt registries and models
- 04Evaluate orchestration and RAG configurations
- 05Retrieve aggregate evaluation results
- 06Download per-row SQLite results
Use cases
- 01Compare prompt performance across models
- 02Evaluate answer quality for orchestration configurations
- 03Check RAG grounding and context metrics
- 04Analyze row-level scores from evaluation datasets
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ sap/ ai-skills-library --skill genai-hub-prompt-evaluationAfter installing, type/genai-hub-prompt-evaluationin Claude Code to confirm it loaded.
Bundled files
References and scripts installed along with SKILL.md.
data/sample_dataset_rag.csvsample_dataset.csvreferences/GROUNDING_SETUP.mdRESULTS_ANALYSIS.mdWORKFLOW.mdscripts/_rest.pycreate_evaluation_configuration.pycreate_evaluation_metric.pycreate_orchestration_registry_config.pycreate_prompt_template.pydownload_evaluation_results.pyget_evaluation_results.pylist_evaluation_metrics.pylist_orchestration_registry_configs.pylist_prompt_templates.pyregister_eval_artifact.pytemplates/custom-metric.jsonorchestration-registry-config.jsonorchestration-registry-grounding-config.jsonprompt-template.jsonDetails
From the project READMEStep 0 — ask for credentials first (required)
Before running any other step, confirm the AI Core credentials are set. Invoke
aicore-admin-resources and run check_setup.py.
- If it succeeds, continue to the workflow.
- If it fails (missing variables,
invalid_client, or bad credentials), STOP and ask the user to export the variables listed in Environment variables below. Do not continue, and do not look for credentials or workflow steps anywhere else (notebooks, other repos, workspace files) — this skill'sscripts/are the only supported path.
Rules
- Run all scripts from this skill's root directory with
uv run scripts/<name>.py. - Shared lifecycle/admin steps are handled by other skills — invoke them rather than reimplementing:
object stores and resource groups →
aicore-admin-resources; artifact registration, executions, execution status →aicore-lifecycle-management. - Never print or log credential values — scripts read them from the environment via the SDK.
- The evaluation scenario ID is
genai-evaluations. Always use the executable IDgenai-evaluations-simplified— hardcode it, do not use any version/user-suffixed variant. A tenant may list many such custom-built images; ignore them. Only fall back to discovery (aicore-lifecycle-managementget_executables.py --scenario-id genai-evaluations) ifgenai-evaluations-simplifiedis not present on the tenant at all. - Before creating a custom metric or prompt-registry config, list existing ones and reuse by
name/scenario/version to avoid duplicates.
create_evaluation_metric.pyalready does create-or-get. - Only fetch results (
get_evaluation_results.py) once the execution status isCOMPLETED(UNKNOWN → PENDING → RUNNING → COMPLETED). Check status by invokingaicore-lifecycle-management(get_executions.py --execution-id <id>). - If a dataset has no reference/ground-truth column, do not select metrics that require a reference.
Environment variables
All scripts in this skill read credentials from the environment — never from CLI arguments.
AI Core credentials (required for all scripts)
| Variable | Description | Notes |
|---|---|---|
AICORE_AUTH_URL | OAuth token endpoint | Must end in /oauth/token |
AICORE_CLIENT_ID | OAuth client ID | From BTP AI Core service key |
AICORE_CLIENT_SECRET | OAuth client secret | From BTP AI Core service key |
AICORE_BASE_URL | AI Core API base URL | /v2 is appended automatically if not present |
AICORE_RESOURCE_GROUP | Resource group to operate in | Default: default |
Source: BTP cockpit → your subaccount → Instances & Subscriptions → AI Core instance → Service Keys.
Set them once via aicore configure (saves to ~/.aicore/config.json) or export each variable:
export AICORE_AUTH_URL=https://<subdomain>.authentication.<region>.hana.ondemand.com/oauth/token
export AICORE_CLIENT_ID=<client-id>
export AICORE_CLIENT_SECRET=<client-secret>
export AICORE_BASE_URL=https://api.ai.<region>.aws.ml.hana.ondemand.com
export AICORE_RESOURCE_GROUP=default
Shell syntax:
AICORE_RESOURCE_GROUP='default'— no space before=.
Object-store credentials (required only for download_evaluation_results.py)
The per-row SQLite DB is downloaded directly from S3 — AI Core credentials are not used here. Set the standard AWS SDK environment variables; the script uses boto3's credential chain directly:
| Variable | Description |
|---|---|
AWS_ACCESS_KEY_ID | S3 access key ID |
AWS_SECRET_ACCESS_KEY | S3 secret access key |
The bucket name is passed as --bucket <name> on the command line (not read from env).
Source: the same AWS credentials used when creating the object store secret in aicore-admin-resources.
End-to-end workflow
The full runbook (with every command and how the pieces connect) is in
references/WORKFLOW.md. The high-level flow, and which skill owns each step:
| # | Step | Owner |
|---|---|---|
| 1 | Register S3 object store secret (input source) | aicore-admin-resources create_object_store.py |
| 2 | Upload the dataset to the bucket | user — sample datasets in data/ |
| 3 | Register the dataset folder as an artifact (with the prompt-evaluation label) | this skill register_eval_artifact.py |
| 4 | Ensure an orchestration deployment is running (for the deployment URL) | aicore-lifecycle-management + genai-hub-orchestration |
| 5 | Select system metrics / create custom metrics | this skill list_evaluation_metrics.py, create_evaluation_metric.py |
| 6 | Create the thing to evaluate (see Evaluation types below) | this skill create_prompt_template.py or create_orchestration_registry_config.py |
| 7 | Create the evaluation configuration | this skill create_evaluation_configuration.py |
| 8 | Start the execution | aicore-lifecycle-management create_execution.py |
| 9 | Poll status until COMPLETED | aicore-lifecycle-management get_executions.py |
| 10 | Retrieve aggregate results | this skill get_evaluation_results.py |
| 11 | (Optional) Download the raw SQLite DB for per-row analysis | this skill download_evaluation_results.py |
Evaluation types
Choose one — it determines what you create in step 6 and which binding you pass to
create_evaluation_configuration.py in step 7:
| Type | What you evaluate | Create with | Config binding |
|---|---|---|---|
| Prompt registry | A prompt template + one or more models | create_prompt_template.py | --prompt-template-id (+ --models) |
| Orchestration registry | An orchestration config (prompt_templating) | create_orchestration_registry_config.py | --orchestration-registry-ids |
| Grounding orchestration registry | An orchestration config with a grounding (RAG) module | create_orchestration_registry_config.py (grounding template) | --orchestration-registry-ids |
All three share steps 1–5 and 7–11; only step 6 and the config binding differ. The grounding type
additionally needs grounding prerequisites (grounding-enabled resource group, grounding secret,
document-grounding pipeline) — see references/GROUNDING_SETUP.md.
Evaluation metrics
# Discover system metric names (use these verbatim in --metrics later)
uv run scripts/list_evaluation_metrics.py --kind system
uv run scripts/list_evaluation_metrics.py --kind system --name "Pointwise"
# List your custom metrics and their IDs
uv run scripts/list_evaluation_metrics.py --kind custom --json | jq '.[] | {id, name}'
# Create (or reuse) custom LLM-as-a-judge metrics from a definition file (idempotent).
# See templates/custom-metric.json. Prints the resulting metric ID(s).
uv run scripts/create_evaluation_metric.py --file templates/custom-metric.json
Common system metrics: Pointwise Conciseness, Pointwise Answer Relevance,
Pointwise Instruction Following, Pointwise Correctness, Pointwise RAG Context Relevance,
Pointwise RAG Groundedness, Pointwise RAG Context Precision, Pointwise RAG Completeness.
Confirm the exact names for the tenant with list_evaluation_metrics.py --kind system.
Step 6 — create the thing to evaluate
Type 1 — Prompt registry
Create (or reuse) a prompt template in the Prompt Registry, then benchmark it across models.
uv run scripts/list_prompt_templates.py --scenario genai-evaluations # reuse?
uv run scripts/create_prompt_template.py --file templates/prompt-template.json \
--name prompt-registry-eval-demo --version 1.0.0
Returns a prompt template ID → pass as --prompt-template-id, together with --models
(e.g. "gpt-4o:2024-05-13") in step 7.
Type 2 — Orchestration registry
Create (or reuse) an orchestration config (prompt_templating, no grounding).
uv run scripts/list_orchestration_registry_configs.py --scenario genai-evaluations # reuse?
uv run scripts/create_orchestration_registry_config.py \
--file templates/orchestration-registry-config.json \
--name genai-eval-prompt-config --version 0.0.1
Returns a config ID → pass as --orchestration-registry-ids in step 7.
Type 3 — Grounding orchestration registry (RAG)
First complete the grounding prerequisites in references/GROUNDING_SETUP.md, then create the
config from the grounding template (adds a grounding module):
uv run scripts/create_orchestration_registry_config.py \
--file templates/orchestration-registry-grounding-config.json \
--name genai-eval-grounding-config --version 0.0.1
Returns a config ID → pass as --orchestration-registry-ids in step 7. Select RAG metrics
(Pointwise RAG Groundedness, Pointwise RAG Context Relevance, …) for this type.
Step 7 — evaluation configuration + execution
Use the executable ID genai-evaluations-simplified directly (per Rule 4 — do not use a
version/user-suffixed variant). Then create the configuration with this skill's script:
# 2a. Create the evaluation configuration — ORCHESTRATION / GROUNDING types
uv run scripts/create_evaluation_configuration.py \
--executable-id genai-evaluations-simplified \
--dataset-artifact-id <artifact-id> \
--test-dataset-path testdata/full_dataset.csv \
--test-dataset-type csv \
--metrics "Pointwise Correctness,Pointwise Answer Relevance" \
--orchestration-registry-ids <registry-config-id> \
--orchestration-deployment-url <orchestration-deployment-url> \
--repetitions 1
# 2b. Create the evaluation configuration — PROMPT REGISTRY type
uv run scripts/create_evaluation_configuration.py \
--executable-id genai-evaluations-simplified \
--dataset-artifact-id <artifact-id> \
--test-dataset-path testdata/full_dataset.csv \
--metrics "Pointwise Correctness" \
--prompt-template-id <prompt-template-id> \
--models "gpt-4o:2024-05-13" \
--orchestration-deployment-url <orchestration-deployment-url>
Custom metric IDs (from create_evaluation_metric.py) can be appended to --metrics. Limit rows
with --test-row-count N. Map variables to dataset columns with
--variable-mapping '{"all_metrics/reference":"data/ground_truth"}'.
Then hand off to aicore-lifecycle-management for the run itself:
- Start the execution —
create_execution.py --configuration-id <config-id> - Poll until COMPLETED —
get_executions.py --execution-id <execution-id>(status goes UNKNOWN → PENDING → RUNNING → COMPLETED)
Results
# Aggregate metrics per model/prompt run (only once COMPLETED)
uv run scripts/get_evaluation_results.py --execution-id <execution-id>
uv run scripts/get_evaluation_results.py --execution-id <execution-id> --json
For instance-level results (per-row scores, latency, logs), download the SQLite DB
(<execution-id>/tmp/results.db) from object storage. Set AWS_ACCESS_KEY_ID and
AWS_SECRET_ACCESS_KEY in the environment, then pass the bucket name via --bucket:
uv run scripts/download_evaluation_results.py --execution-id <execution-id> --bucket <bucket> --show-tables
For the full download + local inspection recipe (table schema, querying per-row metrics), see
references/RESULTS_ANALYSIS.md.
Handoffs
- Credentials, resource group, or object store secret not set up? → invoke
aicore-admin-resources - Need to start/stop/inspect executions, discover executables, or manage deployments? → invoke
aicore-lifecycle-management - Need a running orchestration deployment or want to design the prompt/RAG pipeline? → invoke
genai-hub-orchestration - Setting up grounding (RAG) for the grounding type? → see
references/GROUNDING_SETUP.md(usesaicore-admin-resourcesfor the resource group and secret) - Evaluating an agent (not a prompt/LLM) via the offline service? → invoke
aeval-offline-evaluation
When to Load Reference Files
| Trigger | Load |
|---|---|
| Running the full end-to-end evaluation, or unsure which command comes next | references/WORKFLOW.md |
| Setting up grounding (RAG) prerequisites for the grounding orchestration type | references/GROUNDING_SETUP.md |
| Downloading and inspecting the raw per-row results (SQLite DB from object storage) | references/RESULTS_ANALYSIS.md |