Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/netboxlabs/netbox-best-practicesWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/rules/netboxlabs/netbox-best-practices/netbox-auth)<a href="https://agentmods.dev/rules/netboxlabs/netbox-best-practices/netbox-auth"><img src="https://agentmods.dev/badge/rules/netboxlabs/netbox-best-practices/netbox-auth/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/rules/netboxlabs/netbox-best-practices/netbox-auth"><img src="https://agentmods.dev/badge/rules/netboxlabs/netbox-best-practices/netbox-auth.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00313 |
| Opus 5.5 | $0.00000 | $0.00125 |
| Sonnet 5.5 | $0.00000 | $0.00063 |
| Haiku 4.5 | $0.00000 | $0.00031 |
Grade A, and why
netbox-auth scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
response = requests.post( What it actually says
NetBox Authentication Best Practices
v2 Tokens (CRITICAL - NetBox 4.5+)
Always use v2 tokens on NetBox 4.5+. v1 tokens are deprecated in 4.7.
# WRONG: v1 token format (deprecated)
headers = {"Authorization": f"Token {TOKEN}"}
# CORRECT: v2 token format
headers = {"Authorization": f"Bearer {TOKEN}"}
# Token format: nbt_<key>.<secret>
v2 tokens use HMAC-SHA256 hashing - the plaintext is never stored in the database.
Provisioning Endpoint
Use /api/users/tokens/provision/ for automated token creation in CI/CD pipelines:
response = requests.post(
f"{NETBOX_URL}/api/users/tokens/provision/",
json={"username": username, "password": password}
)
new_token = response.json()["key"]
pynetbox Authentication
import pynetbox
# pynetbox handles auth header format automatically
nb = pynetbox.api(
url="https://netbox.example.com",
token="nbt_abc123.xxxxxxxxxxxx"
)
References
See skills/netbox-integration-best-practices/references/rules/auth-*.md for detailed rules.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 51 lines · 0 tokens per session scan A 8fb1e8ea3968
netbox-auth is a cursor rule published in the GitHub repository netboxlabs/netbox-best-practices (31 stars, last pushed 8mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 313 tokens. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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