
Arize Evaluator
Fix Arize ax CLI authentication and profile configuration so LLM evaluation runs stop failing with 401 or missing API keys.
Overview
Arize Evaluator is an agent skill for the Ship phase that fixes ax CLI profile and API-key setup so Arize-backed LLM evaluation can run without authentication errors.
Install
npx skills add https://github.com/github/awesome-copilot --skill arize-evaluatorWhat is this skill?
- Diagnose ax profiles via ax profiles show without running checks on every invocation
- Patch only broken fields with ax profiles update while preserving other settings
- Requires API keys via ARIZE_API_KEY environment variable—never pass raw keys on the CLI
- Region fixes (e.g., us-east-1b) for wrong endpoint or connectivity issues
- Stepwise flow: inspect state, update misconfigured profile, or create a new profile when none exists
Adoption & trust: 880 installs on skills.sh; 34.6k GitHub stars; 3/3 security scanners passed (skills.sh audits).
What problem does it solve?
Your Arize ax eval commands fail with 401, missing profile, or wrong region and you cannot trust prompt scores until auth is fixed.
Who is it for?
Solo agent builders already using Arize who need a disciplined, secret-safe profile repair path after auth errors.
Skip if: Teams not using Arize or ax CLI, or greenfield eval design where no evaluator tool is chosen yet.
When should I use this skill?
Authentication fails (401, missing profile, missing API key) for Arize ax CLI evaluation—not for proactive profile auditing on every session.
What do I get? / Deliverables
A correctly configured ax profile with API key and region lets you resume LLM evaluation and testing workflows against Arize.
- Working ax CLI profile with valid API key and region
Recommended Skills
Journey fit
Ship is the canonical shelf because the skill unblocks evaluation and QA workflows before you rely on metrics in production. Testing subphase matches evaluator setup: correct profiles, regions, and API keys so eval jobs can run reliably.
How it compares
Credential and profile repair for ax—not a full eval harness design skill or a hosted observability dashboard by itself.
Common Questions / FAQ
Who is arize-evaluator for?
Indie developers and solo AI builders running Arize ax CLI evaluations who need reliable API key and region configuration.
When should I use arize-evaluator?
During Ship testing when ax authentication fails, before batch eval runs, or when rotating API keys for an existing Arize profile.
Is arize-evaluator safe to install?
It instructs handling of API keys via environment variables—review the Security Audits panel on this page and never commit ARIZE_API_KEY to the repo.
SKILL.md
READMESKILL.md - Arize Evaluator
# ax Profile Setup Consult this when authentication fails (401, missing profile, missing API key). Do NOT run these checks proactively. Use this when there is no profile, or a profile has incorrect settings (wrong API key, wrong region, etc.). ## 1. Inspect the current state ```bash ax profiles show ``` Look at the output to understand what's configured: - `API Key: (not set)` or missing → key needs to be created/updated - No profile output or "No profiles found" → no profile exists yet - Connected but getting `401 Unauthorized` → key is wrong or expired - Connected but wrong endpoint/region → region needs to be updated ## 2. Fix a misconfigured profile If a profile exists but one or more settings are wrong, patch only what's broken. **Never pass a raw API key value as a flag.** Always reference it via the `ARIZE_API_KEY` environment variable. If the variable is not already set in the shell, instruct the user to set it first, then run the command: ```bash # If ARIZE_API_KEY is already exported in the shell: ax profiles update --api-key $ARIZE_API_KEY # Fix the region (no secret involved — safe to run directly) ax profiles update --region us-east-1b # Fix both at once ax profiles update --api-key $ARIZE_API_KEY --region us-east-1b ``` `update` only changes the fields you specify — all other settings are preserved. If no profile name is given, the active profile is updated. ## 3. Create a new profile If no profile exists, or if the existing profile needs to point to a completely different setup (different org, different region): **Always reference the key via `$ARIZE_API_KEY`, never inline a raw value.** ```bash # Requires ARIZE_API_KEY to be exported in the shell first ax profiles create --api-key $ARIZE_API_KEY # Create with a region ax profiles create --api-key $ARIZE_API_KEY --region us-east-1b # Create a named profile ax profiles create work --api-key $ARIZE_API_KEY --region us-east-1b ``` To use a named profile with any `ax` command, add `-p NAME`: ```bash ax spans export PROJECT -p work ``` ## 4. Getting the API key **Never ask the user to paste their API key into the chat. Never log, echo, or display an API key value.** If `ARIZE_API_KEY` is not already set, instruct the user to export it in their shell: ```bash export ARIZE_API_KEY="..." # user pastes their key here in their own terminal ``` They can find their key at https://app.arize.com/admin > API Keys. Recommend they create a **scoped service key** (not a personal user key) — service keys are not tied to an individual account and are safer for programmatic use. Keys are space-scoped — make sure they copy the key for the correct space. Once the user confirms the variable is set, proceed with `ax profiles create --api-key $ARIZE_API_KEY` or `ax profiles update --api-key $ARIZE_API_KEY` as described above. ## 5. Verify After any create or update: ```bash ax profiles show ``` Confirm the API key and region are correct, then retry the original command. ## Space There is no profile flag for space. Save it as an environment variable — accepts a space **name** (e.g., `my-workspace`) or a base64 space **ID** (e.g., `U3BhY2U6...`). Find yours with `ax spaces list -o json`. **macOS/Linux** — add to `~/.zshrc` or `~/.bashrc`: ```bash export ARIZE_SPACE="my-workspace" # name or base64 ID ``` Then `source ~/.zshrc` (or restart terminal). **Windows (PowerShell):** ```powershell [System.Environment]::SetEnvironmentVariable('ARIZE_SPACE', 'my-workspace', 'User') ``` Restart terminal for it to take effect. ## Save Credentials for Future Use At the **end of the session**, if the user manually provided any credentials during this conversation **and** those values were NOT already loaded from a saved profile or environment variable, offer to save them. **Skip this entirely if:** - The API key was already loaded from an existing profile or `ARIZE_API_KEY` env var - The space was already set via `ARIZE_SPACE` env var - The user only used base64 pr