What is relational-database-web-cloudbase?

Instructions for using CloudBase’s relational database from a browser-based web app through its JavaScript SDK. A relational database stores information in linked tables that can be queried by the application.

Use it to initialize the browser database client, run table queries, support Supabase migrations, and share a database client across frontend code.

It clarifies how frontend database access differs from server-side or administrative database work, reducing the risk of using the wrong interface.

relational-database-web-cloudbase — Skill by TencentCloudBase

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.

agentmods

npx agentmods add skills/tencentcloudbase/cloudbase-ai-toolkit/relational-database-web-cloudbase

Any agent

npx skills add TencentCloudBase/CloudBase-AI-Toolkit --skill relational-database-web-cloudbase

Clone the repo

git clone --depth 1 https://github.com/TencentCloudBase/CloudBase-AI-Toolkit

Made for: Claude Code, Codex.

Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,060 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.00068	$0.01060
Opus 5	$0.00034	$0.00530
Sonnet 5	$0.00014	$0.00212
Haiku 4.5	$0.00007	$0.00106

Measured 2d ago against content hash 4e073a518481, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

relational-database-web-cloudbase scanned grade A with 0 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 2d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

relational-database-web-cloudbase — 100% identical, 0 lines differ
relational-database-web-cloudbase — 98% identical, 2 lines differ

config/.claude/skills/relational-database-web-cloudbase/SKILL.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sibling skills (local only)

Sibling CloudBase skills ship beside this skill. Use local relative paths such as ../auth-tool-cloudbase/SKILL.md.

If a referenced sibling skill file is missing from this environment, ask the user to install the full CloudBase plugin (or the missing skill). Do not HTTP-fetch remote skill or protocol markdown into the agent context.

CloudBase Relational Database Web SDK

Activation Contract

Use this first when

A browser or Web app must access CloudBase Relational Database through @cloudbase/js-sdk.
The task is specifically about frontend initialization and browser-side query usage.

Read before writing code if

You need to distinguish browser SDK usage from MCP database management or backend Node access.
The request mentions Supabase migration, shared frontend DB client, or browser-side table queries.

Then also read

MySQL SQL management and MCP operations -> ../relational-database-mcp-cloudbase/SKILL.md
Web auth/login -> ../auth-web-cloudbase/SKILL.md
General Web app setup -> ../web-development/SKILL.md

Do NOT use for

MCP-based SQL provisioning, schema changes, or permissions management.
Backend/Node service access.
Document database operations.

Common mistakes / gotchas

Initializing SDKs in an MCP management flow.
Treating app itself as the relational database client.
Re-initializing CloudBase in every component.
Mixing frontend browser access with admin-style schema mutations.

Minimal checklist

Confirm the caller is a Web frontend.
Keep one shared CloudBase app and one shared relational DB client.
Route MySQL provisioning/schema work to relational-database-mcp-cloudbase. If the task says PostgreSQL, CloudBase PG, PG mode, app.rdb(), queryPgDatabase, managePgDatabase, or RLS, route to postgresql-development-cloudbase instead.
Handle auth separately before data access.

Overview

This skill standardizes the browser-side initialization pattern for CloudBase Relational Database.

Read the full file on GitHub · 148 lines

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.

2d ago First seen · 148 lines · 68 tokens per session scan A 4e073a518481

Subscribe to this mod's changes

relational-database-web-cloudbase is a skill published in the GitHub repository TencentCloudBase/CloudBase-AI-Toolkit (1,087 stars, last pushed yesterday), licensed MIT. It adds 68 tokens to every session and 1,060 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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