configuring-ip-allowlists

configuring-ip-allowlists is a skill for Claude Code, Codex from cockroachlabs/cockroachdb-skills. It costs 66 tokens per session (1,646 once invoked), scanned A, original, Apache-2.0.

A procedure for controlling which network addresses can connect to a CockroachDB Cloud cluster. An IP allowlist is a list of approved addresses, written as CIDR ranges, for example an office, VPN, or build system.

In plain words
What is it for?
Use it to review existing access rules, add office or CI/CD addresses, restrict SQL and database-console access, and address network-security audit findings.
Why use it?
It removes overly broad access such as 0.0.0.0/0, which allows connections from anywhere, and replaces it with narrower approved network ranges.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review existing access rules, add office or CI/CD addresses, restrict SQL and database-console access, and address network-security audit findings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists
Install

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.

Any agent
npx skills add cockroachlabs/cockroachdb-skills --skill configuring-ip-allowlists
Clone the repo
git clone --depth 1 https://github.com/cockroachlabs/cockroachdb-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for configuring-ip-allowlists

README.md
[![agentmods](https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists/github.svg)](https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists)
Your own site
<a href="https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists"><img src="https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists/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.

agentmods 80×15 button for configuring-ip-allowlists

Your own site · 80×15
<a href="https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists"><img src="https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/configuring-ip-allowlists.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,646 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00066 $0.01646
Opus 5.5 $0.00026 $0.00658
Sonnet 5.5 $0.00013 $0.00329
Haiku 4.5 $0.00007 $0.00165

Measured 2mo ago against content hash a9b39833349b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

configuring-ip-allowlists 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 2mo 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.

1. **Identify your current IP** before making changes: `curl -s https://checkip.amazonaws.com`
Origin

Copies of this mod

2 near-identical copies found in the catalogue:

skills/cockroachdb-security-and-governance/configuring-ip-allowlists/SKILL.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Configuring IP Allowlists

Configures and hardens IP allowlists on CockroachDB Cloud clusters to restrict SQL and DB Console access to authorized CIDR ranges. Identifies overly permissive entries (such as 0.0.0.0/0) and replaces them with specific, narrow ranges.

When to Use This Skill

  • Removing 0.0.0.0/0 (open to all) from the IP allowlist
  • Restricting network access after initial cluster setup
  • Adding office, VPN, or CI/CD CIDR ranges to the allowlist
  • Reviewing and tightening existing allowlist entries
  • Responding to a security audit finding about overly broad network access

Prerequisites

  • ccloud CLI installed and authenticated (ccloud auth login)
  • Cloud Console role: Cluster Admin or Cluster Operator
  • Known CIDR ranges: Office IPs, VPN egress IPs, CI/CD runner IPs, or other authorized sources
  • Cluster ID: Available from ccloud cluster list

Verify access:

ccloud auth whoami
ccloud cluster list

Steps

1. List Current Allowlist Entries

# List all IP allowlist entries for the cluster
ccloud cluster networking allowlist list <cluster-id> -o json

Review each entry. Flag any of these as overly permissive:

  • 0.0.0.0/0 — Open to all IPv4 addresses
  • /8 ranges — 16 million+ addresses
  • /16 ranges — 65,000+ addresses
  • Unknown or undocumented entries

See ccloud commands reference for full command syntax.

2. Understand Allowlist Limits

CockroachDB Cloud clusters have a maximum number of IP allowlist entries per cluster. If you need more entries than the limit allows:

  • Consolidate entries: Use broader CIDR ranges where security permits (e.g., combine several /32 entries into a /24)
  • Use private endpoints: Switch to private endpoints instead of allowlists for VPC-based access — private endpoints bypass the allowlist entirely
  • Request a limit increase: Contact CockroachDB Cloud support if consolidation and private endpoints are not sufficient

Read the full file on GitHub · 171 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 2mo ago First seen · 171 lines · 66 tokens per session scan A a9b39833349b

Subscribe to this mod's changes

configuring-ip-allowlists is a skill published in the GitHub repository cockroachlabs/cockroachdb-skills (23 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 66 tokens to every session and 1,646 once invoked, about $0.0003 per session on Opus 5.5. 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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