Agent skill · Audited from source

Oura Setup

skill · vellum-ai/vellum-assistantMIT licenceAudited 14 Oct 2026 · source 19bc86343b63

★ 1,425pushed 1 day ago
✕BLOCKGrade D · 69/100 · 6 findings · 19bc863
1,425repo stars · whole vellum-ai/vellum-assistant

Is it safe? No — BLOCK, grade D (69/100). We read this skill's source at commit 19bc86343b63 and found no filesystem, network or shell access and no hard-coded secrets. The audit raised 6 findings, 1 critical or high. What it does: Connect an Oura Ring via OAuth2 — app registration, token exchange, and credential storage

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Cite this page

ModelsAtlas. “Oura Setup (vellum-ai/vellum-assistant)”. Retrieved 14 Oct 2026. https://modelsatlas.com/skills/vellum-ai/oura-setup

Blocked. The page stays public so you can check this skill if someone recommended it to you. The audit found 1 critical or high finding, starting with “Prompt injection” in SKILL.md:139. Do not install it without reading them.

Trust audit

Audit 0.4.1 · source read 14 Oct 2026

Trust score69/100✕BLOCK D
1 critical0 high0 medium5 low0 info

BLOCK means the audit found something that could harm you or your machine. Grade D is shared by 642 of 14,816 audited skills.

What the source does

  • FilesystemNone observedNo reads or writes in the source
  • NetworkNone observedNo outbound calls in the source
  • ShellNone observedNo commands run in the source
  • DependenciesPinnedNothing floats
  • SecretsNone foundNo keys in source

Five audit layers

LayerWhat we checkResultFindings
L0 ProvenanceRepo owner, licence, archive status, activityPASS5
L1 Static sourceSecrets, path traversal, supply chain, hidden codeNA0
L2 InstructionsPrompt injection, authority framing, hidden directivesFAIL1
L3 InventoryThe files and declarations match the sourcePASS0
L4 SandboxRun in isolation and watch behaviourSKIPPED why0

Gates applied: critical finding, no behavioural pass, undeclared transfer.

Findings (6)

CRITICALPrompt injectionprompt.transfer_instruction · SKILL.md:139
F-01 Prompt injectionCWE-94 · CWE-1427Layer L2
curl -s -X POST "https://api.ouraring.com/oauth/token" \
Why
an instruction to move sensitive data to an outside destination
Fix
remove; a skill never needs the user's secrets off the machine

Audit 0.4.1 · source sha 19bc86343b63 · 14 Oct 2026Report an issue or request a re-scan

Provenance

Who published it, and what the verdict is pinned to

  • Publishervellum-ai GitHub organizationOwner of the repository this skill is read from
  • Source foldervellum-ai/vellum-assistant/skills/oura-setupThe exact folder we audited
  • LicenceMITAs the repository states it
  • Commit pinned for this verdict19bc86343b63A new audit runs when the source changes
  • Repository statusNot archivedLast push 1 day ago
  • Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

What it tells the agent

Full source on GitHub ↗

Its description: Connect an Oura Ring via OAuth2 — app registration, token exchange, and credential storage

---
name: oura-setup
description: Connect an Oura Ring via OAuth2 — app registration, token exchange, and credential storage
compatibility: "Designed for Vellum personal assistants"
metadata:
  emoji: "💍"
  vellum:
    category: "health"
    display-name: "Oura Ring Setup"
---

# Oura Ring Integration

Connect the user's Oura Ring to pull sleep, heart rate, readiness, activity, and other health data via the Oura Cloud API V2.

## Prerequisites

- An Oura Ring (Gen 3 or Ring 4) with an active Oura Membership ($6/mo required for API access)
- The Oura app installed and paired with the ring
- An Oura Cloud account at https://cloud.ouraring.com

## Setup

### 1. Register a Developer Application

Have the user go to https://developer.ouraring.com/applications and create a new application:

- **Display Name:** The user's preferred name for the integration
- **Description:** Brief description of the integration
- **Contact Email:** User's email
- **Website:** Any valid URL (e.g. a personal website)
- **Privacy Policy / Terms of Service:** Any valid URLs (required fields, not enforced for personal apps)
- **Redirect URIs:** `http://localhost:3000/callback`
- **Scopes:** Enable all scopes needed. Recommended: `personal`, `daily`, `heartrate`, `sleep`, `workout`, `spo2`, `stress`, `heart_health`, `session`, `ring_configuration`

Save the **Client ID** and **Client Secret**.

### 2. Run the OAuth Flow

Store the client secret securely using `assistant credentials prompt`, then write and run the OAuth helper script on the user's machine:

```python
#!/usr/bin/env python3
"""Oura Ring OAuth2 helper — catches auth code and exchanges for tokens instantly."""
from http.server import HTTPServer, BaseHTTPRequestHandler
from urllib.parse import urlparse, parse_qs, urlencode
import urllib.request, json, webbrowser, ssl

CLIENT_ID = 'YOUR_CLIENT_ID'
CLIENT_SECRET = 'YOUR_CLIENT_SECRET'
REDIRECT_URI = 'http://localhost:3000/callback'
SCOPES = 'email personal daily heartrate workout tag session spo2 ring_configuration stress heart_health'

class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        parsed = urlparse(self.path)
        if parsed.path == '/':
            params = urlencode({
                'response_type': 'code', 'client_id': CLIENT_ID,
                'redirect_uri': REDIRECT_URI, 'scope': SCOPES, 'state': 'assistant'
            })
            self.send_response(302)
            self.send_header('Location', f'https://cloud.ouraring.com/oauth/authorize?{params}')
            self.end_headers()
        elif parsed.path == '/callback':
            code = parse_qs(parsed.query).get('code', [''])[0]
            if code:
                token_data = urlencode({
                    'grant_type': 'authorization_code', 'code': code,
                    'redirect_uri': REDIRECT_URI, 'client_id': CLIENT_ID,
                    'client_secret': CLIENT_SECRET,
                }).encode()
                try:
                    req = urllib.request.Request('https://api.ouraring.com/oauth/token',
                        data=token_data,
                        headers={'Content-Type': 'application/x-www-form-urlencoded'},
                        method='POST')
                    resp = urllib.request.urlopen(req, context=ssl.create_default_context())
                    result = json.loads(resp.read())
                    with open('/tmp/oura_tokens.json', 'w') as f:
                        json.dump(result, f, indent=2)
                    self.send_response(200)
                    self.send_header('Content-Type', 'text/html')
                    self.end_headers()
                    self.wfile.write(b'<html><body><h1>Connected! You can close this tab.</h1></body></html>')
                    print(f'\nTokens saved to /tmp/oura_tokens.json')
                except Exception as e:
                    self.send_response(500)
                    self.end_headers()
                    self.wfile.write(f'Token exchange failed: {e}'.encode())
    def log_message(self, *a): pass

print('Opening browser for Oura authorization...')
webbrowser.open('http://localhost:3000')
HTTPServer(('localhost', 3000), Handler).serve_forever()
```

Run with `python3 /path/to/script.py` on the user's machine (`host_bash`). The user authorizes in their browser, the script catches the code and exchanges it for tokens in under a second.

**Important:** Auth codes expire in ~30 seconds. Do NOT have the user paste codes manually — use this script to catch and exchange them automatically.

### 3. Store Tokens

After the OAuth flow, read tokens from `/tmp/oura_tokens.json` and store them:

- `access_token` — store in credential vault with injection template for `api.ouraring.com` Authorization header (Bearer prefix) and `allowed_tools: ["bash"]`
- `refresh_token` — store in credential vault for token refresh
- Tokens expire in ~30 days. Set a reminder to refresh before expiry.

### 4. Verify Connection

Test with the personal info endpoint:

```bash
curl -s -H "Authorization: Bearer $TOKEN" "https://api.ouraring.com/v2/usercollection/personal_info"
```

## Available Endpoints

All endpoints use `GET https://api.ouraring.com/v2/usercollection/{type}` with query params `start_date` and `end_date` (YYYY-MM-DD format).

| Endpoint                             | Data                                                              | Notes                                       |
| ------------------------------------ | ----------------------------------------------------------------- | ------------------------------------------- |
| `/v2/usercollection/daily_sleep`     | Sleep score, duration, efficiency, stages                         | Best checked after user's typical wake time |
| `/v2/usercollection/sleep`           | Detailed sleep periods with HR, HRV, movement                     | Raw sleep period data                       |
| `/v2/usercollection/daily_readiness` | Readiness score, HRV balance, recovery                       

Excerpt, first 6,001 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

Install

Pinned to the audited commit 19bc863

git clone https://github.com/vellum-ai/vellum-assistant
git -C vellum-assistant checkout 19bc86343b63

The author documents no install command, so this uses the repository directly. Our verdict covers commit 19bc86343b63 only.

Works in

The author has not said which agents this skill supports, and we have not tested it in any.

Audit history

Every audit, every source change

  1. ✕BLOCK D 69 / 100

    first audit · source 19bc86343b63

README badge

For maintainers · shows the latest audit

ModelsAtlas: BLOCK DMODELSATLASBLOCK · D
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The badge shows our verdict and grade for this skill, and links back to this page. It changes when the audit does.

Add this badge to your README

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Questions about Oura Setup

What does the Oura Setup skill do?
An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time.
Is Oura Setup safe to install?
No — not without reading the findings first. The audit graded it D (69/100) and found 1 critical or high issue in the source. Each one is listed on this page with the file and line it is on.
What can Oura Setup access on my machine?
The audit observed no filesystem, network or shell use at all in its source.
How current is this page?
The grade is for one exact copy of the source (19bc86343b63), read on 2026-10-14. The repository is watched, and a new audit runs when it changes — this is the first audit.

Sources

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