Fast path for a minimal CloudBase Web + database demo (最小前后端 / 最小可用 fullstack / Lovable-like BaaS). Defaults to @cloudbase/js-sdk client CRUD (NoSQL app.database / PG app.rdb), MCP-only schema, preview-first, and forbids cloud functions unless secrets, cron/background jobs, or logic that security rules/RLS cannot express.
SkillScore86Maintained
Automatic
◆Coding pack
Last verified 8/28/2026
What it changes
Passed 16 of 19 test cases with the skill, and 8 of 19 without it.
Without skill41%
With skill86%
Checks it passed that the model alone missed
Uses app.rdb() for browser PostgreSQL data operations.
Instructs calling await auth.signInAnonymously() to fix the authorization failure.
Avoids generating 4-part visual design specifications for a minimal demo unless requested.
and 11 more in the full report
10 fixed9 passed either way3 still failing0 broke
Pass-rate lift
+45 pp
Tokens
+50%
Agent turns
0%
Response time
-46%
Model gemini-3.6-flashMeasured 8/28/2026v419 of 22 cases passed with skill · 19 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 10
Prompt
An automated partner integration tool is waiting for user credential approval before building a CloudBase web demo. What action should be performed during this waiting period?
What was checked, without and with the skill
Checked
Without skill
With skill
Executes template downloading and package installation concurrently during credential approval wait time.
Missed
Passed
case-17 · gemini-3.6-flash · 8/28/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md132 linessingle file
Sibling skills (local only)
Sibling CloudBase skills ship beside this skill. Use local relative paths such as ../web-development/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.
Minimal Web BaaS Demo (fast path)
Goal: minutes to an interactive Web + database preview, not a cloud-function middleware stack.
This skill is the product equivalent of CloudBase Sites SessionStart Rule 5 (BaaS-first data persistence).
Activation Contract
Use this first when
The user asks for a minimal fullstack / 前后端 demo, message board, Todo, Notes, Kanban, or Lovable/Supabase-like quick app on CloudBase Web.
The user says "带云函数+云数据库" but the real need is CRUD + preview (reinterpret as Web SDK → database).
Do NOT use for
WeChat Mini Programs (wx.cloud) — use ../miniprogram-development/SKILL.md.
True server workloads: payments callbacks, SMS providers, secret third-party keys, cron/ETL, WebSockets — use ../cloud-functions/SKILL.md or ../cloudrun-development/SKILL.md.
Large multi-module products that need ../spec-workflow/SKILL.md.
Hard rules (align with Sites SessionStart Rule 5)
BaaS-first data path
Schema / admin: Prefer MCP management tools. Do not ask the user to create collections/tables in the console. If MCP tools are missing in this session, configure MCP for next time and use tcb CLI (../cloudbase-cli/SKILL.md) for equivalent schema/admin ops.
NoSQL: writeNoSqlDatabaseStructure (create collection / indexes) + permission tools as needed; CLI: NoSQL commands in cloudbase-cli.
PostgreSQL: follow ../postgresql-development-cloudbase/SKILL.md (queryPgDatabase / managePgDatabase / migrations); CLI parity via tcb db pg … when MCP is unavailable.