CockroachDB Plugin for Claude Code connects Claude Code to CockroachDB clusters, which are distributed databases, so the agent can work with schemas, SQL queries, and database operations. It is intended for developers, database administrators, and operators working with self-hosted or CockroachDB Cloud deployments. The catalogue entries provide its MCP connections, specialized agents, skills, and safety hooks.
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 cockroachdb/claude-plugin --skill performing-cluster-maintenancegit clone --depth 1 https://github.com/cockroachdb/claude-pluginWrote 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/cockroachdb/claude-plugin/performing-cluster-maintenance)<a href="https://agentmods.dev/skills/cockroachdb/claude-plugin/performing-cluster-maintenance"><img src="https://agentmods.dev/badge/skills/cockroachdb/claude-plugin/performing-cluster-maintenance/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/cockroachdb/claude-plugin/performing-cluster-maintenance"><img src="https://agentmods.dev/badge/skills/cockroachdb/claude-plugin/performing-cluster-maintenance.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 | $0.00087 | $0.03314 |
| Opus 5.5 | $0.00035 | $0.01326 |
| Sonnet 5.5 | $0.00017 | $0.00663 |
| Haiku 4.5 | $0.00009 | $0.00331 |
Grade B, and why
performing-cluster-maintenance scanned grade B 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 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo systemctl stop cockroachdb Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -ks https://<node>:8080/_status/vars | grep -E '^capacity( |_used|_available)' This is a copy
100% identical to performing-cluster-maintenance — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 380 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Performing Cluster Maintenance
Manages planned cluster maintenance across all deployment tiers. For Self-Hosted, this means draining and restarting individual nodes. For Advanced/BYOC, this means configuring and managing maintenance windows for CRL-applied patches. For Standard and Basic, maintenance is fully managed with no customer action required.
When to Use This Skill
- Planning OS patching, hardware changes, or configuration updates (Self-Hosted)
- Configuring or modifying a maintenance window (Advanced, BYOC)
- Setting patch deferral policies (Advanced, BYOC)
- Monitoring during a CRL-managed maintenance event (Advanced, BYOC)
- Running pre-maintenance validation checks (Self-Hosted, Advanced, BYOC)
- Understanding how maintenance affects your application (all tiers)
- Preparing applications for maintenance events (all tiers)
For permanent node removal: Use managing-cluster-capacity. For pre-maintenance health check: Use reviewing-cluster-health. For version upgrades: Use upgrading-cluster-version.
Step 1: Gather Context
Required Context
| Question | Options | Why It Matters |
|---|---|---|
| Deployment tier? | Self-Hosted, Advanced, BYOC, Standard, Basic | Determines maintenance procedure |
| Goal? | Plan maintenance, Configure maintenance window, Defer a patch, Monitor during maintenance, Prepare application | Routes to the right procedure |
Additional Context (by tier)
If Self-Hosted:
| Question | Options | Why It Matters |
|---|---|---|
| Maintenance type? | OS patching, Hardware change, Binary upgrade, Config change, Planned restart | Affects sequencing and post-maintenance steps |
| Deployment platform? | Bare metal, VMs, Kubernetes (Operator/Helm/manual) | Changes drain and restart commands |
| Process manager? | systemd, manual, container orchestrator | Changes stop/start commands |
| Target node ID? | Node ID | Required for drain command |
| Long-running queries expected? | Yes (increase drain timeout), No (default timeout) | Determines drain-wait parameter |
What ships with it
3 files 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.
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.
- 2mo ago First seen · 380 lines · 87 tokens per session scan B 172aab0d9cbd
performing-cluster-maintenance is a skill published in the GitHub repository cockroachdb/claude-plugin (4 stars, last pushed 28d ago), licensed Apache-2.0. It adds 87 tokens to every session and 3,314 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 2 findings (asks for root, makes network calls). It is 100% identical to performing-cluster-maintenance, differing in 0 lines, and is treated as a copy.
performing-cluster-maintenance compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| performing-cluster-maintenancecockroachdb/claude-plugin | Skill | 4 | 28d ago | Apache-2.0 | B | 87 | Claude Code |
| designing-application-transactionscockroachdb/cursor-plugin | Skill | 2 | 28d ago | Apache-2.0 | A | 102 | Cursor |
| auditing-table-statisticscockroachdb/cursor-plugin | Skill | 2 | 28d ago | Apache-2.0 | A | 55 | Cursor |
| profiling-transaction-fingerprintscockroachdb/cursor-plugin | Skill | 2 | 28d ago | Apache-2.0 | A | 80 | Cursor |
| configuring-sso-and-scimcockroachdb/cursor-plugin | Skill | 2 | 28d ago | Apache-2.0 | A | 91 | Cursor |
| designing-multi-region-applicationscockroachdb/cursor-plugin | Skill | 2 | 28d ago | Apache-2.0 | A | 89 | Cursor |
| analyzing-range-distributioncockroachdb/cursor-plugin | Skill | 2 | 28d ago | Apache-2.0 | A | 60 | Cursor |