Supabase Postgres Best Practices
supabase/agent-skills
Gives the agent Postgres rules to consult before writing or changing tables, queries, indexes, RLS policies or migrations, and when diagnosing slow queries.
PostgreSQL 数据库模式，用于查询优化、架构设计、索引和安全性。基于 Supabase 最佳实践. An agent skill from xu-xiang/everything-claude-code-zh.
Install Postgres Patterns
$ npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install xu-xiang/everything-claude-code-zh postgres-patterns --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/xu-xiang/everything-claude-code-zh.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/postgres-patterns .claude/skills/postgres-patterns && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "postgres-patterns" agent skill from https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patterns into .claude/skills/postgres-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "postgres-patterns", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patternsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install xu-xiang/everything-claude-code-zh postgres-patterns --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xu-xiang/everything-claude-code-zh.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/postgres-patterns .agents/skills/postgres-patterns && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "postgres-patterns" agent skill from https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patterns into .agents/skills/postgres-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "postgres-patterns", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install xu-xiang/everything-claude-code-zh postgres-patterns --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xu-xiang/everything-claude-code-zh.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/postgres-patterns .cursor/skills/postgres-patterns && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "postgres-patterns" agent skill from https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patterns into .cursor/skills/postgres-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "postgres-patterns", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/xu-xiang/everything-claude-code-zh.git --path skills/postgres-patterns--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install xu-xiang/everything-claude-code-zh postgres-patterns --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xu-xiang/everything-claude-code-zh.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/postgres-patterns .gemini/skills/postgres-patterns && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "postgres-patterns" agent skill from https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patterns into .gemini/skills/postgres-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "postgres-patterns", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install xu-xiang/everything-claude-code-zh postgres-patternsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/xu-xiang/everything-claude-code-zh.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/postgres-patterns .github/skills/postgres-patterns && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "postgres-patterns" agent skill from https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patterns into .github/skills/postgres-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "postgres-patterns", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install xu-xiang/everything-claude-code-zh postgres-patterns --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xu-xiang/everything-claude-code-zh.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/postgres-patterns .opencode/skills/postgres-patterns && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "postgres-patterns" agent skill from https://github.com/xu-xiang/everything-claude-code-zh/tree/main/skills/postgres-patterns into .opencode/skills/postgres-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "postgres-patterns", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
postgres-patterns- GitHub stars
- 2k
- Token cost
- ~856 tokens
- SKILL.md length
- 169 words
- Files
- 1
- Skills in repo
- 78
- Repo updated
- First seen
- Licence
- MIT
At a glance
PostgreSQL 数据库模式，用于查询优化、架构设计、索引和安全性。基于 Supabase 最佳实践. An agent skill from xu-xiang/everything-claude-code-zh.
- Databases work in your project
- SKILL.md covers 何时激活, 快速参考 and 相关资源
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Postgres Patterns is an agent skill from xu-xiang/everything-claude-code-zh. PostgreSQL 数据库模式，用于查询优化、架构设计、索引和安全性。基于 Supabase 最佳实践。
Its SKILL.md is about 860 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Databases. It works with PostgreSQL and Supabase. The repository describes itself as: everything-claude-code 中文翻译项目：完整的 Claude Code 配置集合（agents, skills, hooks, commands, rules, MCPs）。源自 Anthropic 黑客松获胜者的实战配置，助力中文工程师高效理解与使用 Claude Code。 The licence is MIT.
When your agent uses it
- Databases work in your project
Example prompts
- “/postgres-patterns”
What it can do on your machine
Read from SKILL.md and the folder at commit dfbf946. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are sql).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Postgres Patterns loads about 856 tokens when it runs. Until then it costs about 18 tokens; SKILL.md has 169 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from xu-xiang/everything-claude-code-zh at commit dfbf946, republished under its MIT licence (© xu-xiang). 169 words, ~856 tokens.
Download SKILL.mdSave it as
.claude/skills/postgres-patterns/SKILL.md (or your agent's skills folder).- name
- postgres-patterns
- description
- PostgreSQL 数据库模式，用于查询优化、架构设计、索引和安全性。基于 Supabase 最佳实践。
- origin
- ECC
PostgreSQL 最佳实践模式 (PostgreSQL Patterns)
PostgreSQL 最佳实践快速参考。如需详细指导，请使用 database-reviewer 智能体 (Agent)。
何时激活
- 编写 SQL 查询或迁移脚本
- 设计数据库架构 (Schema)
- 排查慢查询问题
- 实现行级安全性 (Row Level Security, RLS)
- 设置连接池 (Connection Pooling)
快速参考
索引速查表 (Index Cheat Sheet)
| 查询模式 | 索引类型 | 示例 |
|---|---|---|
WHERE col = value | B-tree (默认) | CREATE INDEX idx ON t (col) |
WHERE col > value | B-tree | CREATE INDEX idx ON t (col) |
WHERE a = x AND b > y | 复合索引 (Composite) | CREATE INDEX idx ON t (a, b) |
WHERE jsonb @> '{}' | GIN | CREATE INDEX idx ON t USING gin (col) |
WHERE tsv @@ query | GIN | CREATE INDEX idx ON t USING gin (col) |
| 时间序列范围 | BRIN | CREATE INDEX idx ON t USING brin (col) |
数据类型快速参考
| 用例 | 正确类型 | 应避免 |
|---|---|---|
| ID | bigint | int, 随机 UUID |
| 字符串 | text | varchar(255) |
| 时间戳 | timestamptz | timestamp |
| 金额 | numeric(10,2) | float |
| 标记位 (Flags) | boolean | varchar, int |
常用模式
复合索引顺序：
-- 等值列（Equality columns）在前，范围列（Range columns）在后
CREATE INDEX idx ON orders (status, created_at);
-- 适用于：WHERE status = 'pending' AND created_at > '2024-01-01'覆盖索引 (Covering Index)：
CREATE INDEX idx ON users (email) INCLUDE (name, created_at);
-- 避免在执行 SELECT email, name, created_at 时进行回表查询 (Table lookup)部分索引 (Partial Index)：
CREATE INDEX idx ON users (email) WHERE deleted_at IS NULL;
-- 索引更小，仅包含活跃用户RLS 策略（优化版）：
CREATE POLICY policy ON orders
USING ((SELECT auth.uid()) = user_id); -- 包装在 SELECT 中！UPSERT (更新或插入)：
INSERT INTO settings (user_id, key, value)
VALUES (123, 'theme', 'dark')
ON CONFLICT (user_id, key)
DO UPDATE SET value = EXCLUDED.value;游标分页 (Cursor Pagination)：
SELECT * FROM products WHERE id > $last_id ORDER BY id LIMIT 20;
-- O(1) 复杂度，优于 O(n) 的 OFFSET队列处理 (Queue Processing)：
UPDATE jobs SET status = 'processing'
WHERE id = (
SELECT id FROM jobs WHERE status = 'pending'
ORDER BY created_at LIMIT 1
FOR UPDATE SKIP LOCKED
) RETURNING *;反模式检测 (Anti-Pattern Detection)
-- 查找未建立索引的外键
SELECT conrelid::regclass, a.attname
FROM pg_constraint c
JOIN pg_attribute a ON a.attrelid = c.conrelid AND a.attnum = ANY(c.conkey)
WHERE c.contype = 'f'
AND NOT EXISTS (
SELECT 1 FROM pg_index i
WHERE i.indrelid = c.conrelid AND a.attnum = ANY(i.indkey)
);
-- 查找慢查询
SELECT query, mean_exec_time, calls
FROM pg_stat_statements
WHERE mean_exec_time > 100
ORDER BY mean_exec_time DESC;
-- 检查表膨胀 (Table Bloat)
SELECT relname, n_dead_tup, last_vacuum
FROM pg_stat_user_tables
WHERE n_dead_tup > 1000
ORDER BY n_dead_tup DESC;配置模板
-- 连接限制 (根据 RAM 调整)
ALTER SYSTEM SET max_connections = 100;
ALTER SYSTEM SET work_mem = '8MB';
-- 超时设置
ALTER SYSTEM SET idle_in_transaction_session_timeout = '30s';
ALTER SYSTEM SET statement_timeout = '30s';
-- 监控
CREATE EXTENSION IF NOT EXISTS pg_stat_statements;
-- 安全默认值
REVOKE ALL ON SCHEMA public FROM public;
SELECT pg_reload_conf();相关资源
- 智能体 (Agent)：
database-reviewer- 完整数据库审查工作流 - 技能 (Skill)：
clickhouse-io- ClickHouse 分析模式 - 技能 (Skill)：
backend-patterns- API 和后端模式
基于 Supabase 智能体技能 (Supabase Agent Skills) (致谢: Supabase 团队) (MIT 许可证)
© xu-xiang, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/postgres-patterns of xu-xiang/everything-claude-code-zh.
Open the folder on GitHubat commit dfbf946
Compare with similar skills
Postgres Patterns next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Postgres Patterns this skillxu-xiang/everything-claude-code-zh | 2k | — | ~856 | Automated safety check: Pass | MIT | |
| Supabase Postgres Best Practicessupabase/agent-skills | 2.7k | 24 repos | ~808 | Automated safety check: Pass | MIT | |
| Add Backendahpxex/open-dashboard | 146 | — | ~3.6k | Automated safety check: Pass | MIT | |
| Take Doc Screenshotspgplex/pgconsole | 155 | — | ~841 | Automated safety check: Pass | Apache-2.0 | |
| Srtd Devt1mmen/srtd | 105 | — | ~2.3k | Automated safety check: Pass | MIT | |
| Srtd CLIt1mmen/srtd | 105 | — | ~360 | Automated safety check: Pass | MIT |
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Questions about Postgres Patterns
What does Postgres Patterns do?
PostgreSQL 数据库模式，用于查询优化、架构设计、索引和安全性。基于 Supabase 最佳实践. An agent skill from xu-xiang/everything-claude-code-zh. Postgres Patterns is an agent skill from xu-xiang/everything-claude-code-zh.
When should I use Postgres Patterns?
Postgres Patterns fits situations like: databases work in your project.
How do I install Postgres Patterns in Claude Code?
Run `npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a claude-code`. Or copy the skill folder (skills/postgres-patterns in xu-xiang/everything-claude-code-zh) into .claude/skills/postgres-patterns in your project. Claude Code loads it when a task matches its description.
How do I install Postgres Patterns in Codex?
Run `npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a codex`. Or copy the skill folder (skills/postgres-patterns in xu-xiang/everything-claude-code-zh) into .agents/skills/postgres-patterns in your project. Codex loads it when a task matches its description.
Can I use Postgres Patterns in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add xu-xiang/everything-claude-code-zh --skill postgres-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/postgres-patterns, .gemini/skills/postgres-patterns, .github/skills/postgres-patterns and .opencode/skills/postgres-patterns in your project.
What does Postgres Patterns need to run?
SKILL.md names no scripts, command-line tools or credentials: Postgres Patterns is instructions for the agent only.
Does Postgres Patterns access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Postgres Patterns safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Postgres Patterns use?
Postgres Patterns is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Postgres Patterns use?
About 856 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Postgres Patterns?
Skills that share tags, products or a category with Postgres Patterns: Supabase Postgres Best Practices (supabase/agent-skills, 2.7k stars), Add Backend (ahpxex/open-dashboard, 146 stars), Take Doc Screenshots (pgplex/pgconsole, 155 stars) and Srtd Dev (t1mmen/srtd, 105 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Postgres Patterns?
xu-xiang (a GitHub user) maintains it in xu-xiang/everything-claude-code-zh, which has 1,971 GitHub stars. The repository holds 78 skills in this directory. The repository was last updated on March 5, 2026.
Source: xu-xiang/everything-claude-code-zh on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.