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.
npx skills add cockroachlabs/cockroachdb-skills --skill setting-up-local-clustergit clone --depth 1 https://github.com/cockroachlabs/cockroachdb-skillsWrote 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/skills/cockroachlabs/cockroachdb-skills/setting-up-local-cluster)<a href="https://agentmods.dev/skills/cockroachlabs/cockroachdb-skills/setting-up-local-cluster"><img src="https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/setting-up-local-cluster/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/skills/cockroachlabs/cockroachdb-skills/setting-up-local-cluster"><img src="https://agentmods.dev/badge/skills/cockroachlabs/cockroachdb-skills/setting-up-local-cluster.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 | $0.00049 | $0.01883 |
| Opus 5 | $0.00024 | $0.00941 |
| Sonnet 5 | $0.00010 | $0.00377 |
| Haiku 4.5 | $0.00005 | $0.00188 |
Grade C, and why
setting-up-local-cluster scanned grade C with 2 findings 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 10d 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf $HOME/.cockroachdb/data $HOME/.cockroachdb/logs Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- `curl` or `wget` available for downloading the binary Copies of this mod
2 near-identical copies found in the catalogue:
- setting-up-local-cluster — 100% identical, 0 lines differ
- setting-up-local-cluster — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Setting Up a Local CockroachDB Cluster
Guides you through downloading, installing, and starting a local CockroachDB cluster for development. Uses the official binary -- no Docker or external runtime dependencies required.
When to Use This Skill
- Developer asks to "set up CockroachDB" or "start a local database"
- No CockroachDB cluster is reachable
- Developer wants to build an app with CockroachDB from scratch
- Setting up a new development environment
Prerequisites
- macOS (Intel or Apple Silicon), Linux (Intel or ARM), or Windows (Intel)
curlorwgetavailable for downloading the binary- ~500 MB disk space per node
- Ports 26257-26259 (SQL), 26357-26359 (RPC), and 8080-8082 (DB Console) available for a 3-node cluster
Step 1: Detect Platform and Download
Detect the OS and architecture, then download the appropriate binary.
Download URLs
Base URL: https://binaries.cockroachdb.com/
| OS | Architecture | Filename Pattern |
|---|---|---|
| Linux | Intel (amd64) | cockroach-v{VERSION}.linux-amd64.tgz |
| Linux | ARM (arm64) | cockroach-v{VERSION}.linux-arm64.tgz |
| macOS | Intel (amd64) | cockroach-v{VERSION}.darwin-10.9-amd64.tgz |
| macOS | Apple Silicon (arm64) | cockroach-v{VERSION}.darwin-11.0-arm64.tgz |
| Windows | Intel (amd64) | cockroach-v{VERSION}.windows-6.2-amd64.zip |
Replace {VERSION} with the desired release (e.g., 25.4.9). See CockroachDB Releases for the latest GA version.
Installation
# Example: macOS Apple Silicon, v25.4.9
curl -fsSL https://binaries.cockroachdb.com/cockroach-v25.4.9.darwin-11.0-arm64.tgz | tar xz
mkdir -p ~/.cockroachdb/bin
cp cockroach-v25.4.9.darwin-11.0-arm64/cockroach ~/.cockroachdb/bin/
export PATH="$HOME/.cockroachdb/bin:$PATH"
If cockroach is already on PATH, skip the download.
Step 2: Start the Cluster
A 3-node cluster is recommended for development because it exercises replication, range distribution, leaseholder balancing, and survival goals -- core CockroachDB capabilities that a single node cannot demonstrate.
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.
- 10d ago First seen · 181 lines · 49 tokens per session scan C f6edf9783757
setting-up-local-cluster is a skill published in the GitHub repository cockroachlabs/cockroachdb-skills (21 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 49 tokens to every session and 1,883 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, 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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