Agent skill

Effect V4

Effect v4 模式指南。当需要创建 Effect 服务、定义错误类型、编写 Effect 程序、管理 Layer 组合、或使用 Effect 封装异步操作时使用

MITAuto-check passedDatabases

Install Effect V4

skills CLI

$ npx skills add zhe-qi/clhoria-template --skill effect-v4 -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install zhe-qi/clhoria-template effect-v4 --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/zhe-qi/clhoria-template.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/effect-v4 .claude/skills/effect-v4 && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "effect-v4" agent skill from https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4 into .claude/skills/effect-v4/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "effect-v4", 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

$skill-installer install https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4

Type 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.

skills CLI

$ npx skills add zhe-qi/clhoria-template --skill effect-v4 -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install zhe-qi/clhoria-template effect-v4 --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhe-qi/clhoria-template.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/effect-v4 .agents/skills/effect-v4 && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "effect-v4" agent skill from https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4 into .agents/skills/effect-v4/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "effect-v4", 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.

skills CLI

$ npx skills add zhe-qi/clhoria-template --skill effect-v4 -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install zhe-qi/clhoria-template effect-v4 --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhe-qi/clhoria-template.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/effect-v4 .cursor/skills/effect-v4 && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "effect-v4" agent skill from https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4 into .cursor/skills/effect-v4/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "effect-v4", 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

$ gemini skills install https://github.com/zhe-qi/clhoria-template.git --path .agents/skills/effect-v4

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add zhe-qi/clhoria-template --skill effect-v4 -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install zhe-qi/clhoria-template effect-v4 --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhe-qi/clhoria-template.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/effect-v4 .gemini/skills/effect-v4 && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "effect-v4" agent skill from https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4 into .gemini/skills/effect-v4/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "effect-v4", 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.

GitHub CLI

$ gh skill install zhe-qi/clhoria-template effect-v4

Installs 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).

skills CLI

$ npx skills add zhe-qi/clhoria-template --skill effect-v4 -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/zhe-qi/clhoria-template.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/effect-v4 .github/skills/effect-v4 && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "effect-v4" agent skill from https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4 into .github/skills/effect-v4/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "effect-v4", 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.

skills CLI

$ npx skills add zhe-qi/clhoria-template --skill effect-v4 -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install zhe-qi/clhoria-template effect-v4 --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhe-qi/clhoria-template.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/effect-v4 .opencode/skills/effect-v4 && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "effect-v4" agent skill from https://github.com/zhe-qi/clhoria-template/tree/main/.agents/skills/effect-v4 into .opencode/skills/effect-v4/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "effect-v4", 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: effect-v4
GitHub stars: 193
Token cost: ~887 tokens
SKILL.md length: 228 words
Files: 6 (incl. references)
Skills in repo: 10
Repo updated: Jul 30, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Effect v4 模式指南。当需要创建 Effect 服务、定义错误类型、编写 Effect 程序、管理 Layer 组合、或使用 Effect 封装异步操作时使用

Databases work in your project
SKILL.md covers 技术栈, 文件结构, 核心规则速查 and v3 → v4 迁移对照, plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Effect V4 is an agent skill from zhe-qi/clhoria-template. Effect v4 模式指南。当需要创建 Effect 服务、定义错误类型、编写 Effect 程序、管理 Layer 组合、或使用 Effect 封装异步操作时使用

Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `references/anti-patterns.md`, `references/effect-composition.md` and `references/error-patterns.md`).

It sits in Databases. It works with Hono and Zod. The repository describes itself as: Production-ready Hono backend template that doubles as an AI agent harness — providing feedforward guides, feedback sensors, and progressive specialization to make AI coding… The licence is MIT.

When your agent uses it

Databases work in your project

Example prompts

“/effect-v4”

What it can do on your machine

Read from SKILL.md and the folder at commit 589f13e. 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.
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

Effect V4 loads about 887 tokens when it runs, and up to ~9.3k if it reads all its reference files. Until then it costs about 23 tokens; SKILL.md has 228 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~23
When it runs · the whole SKILL.md, loaded when a task matches: ~887
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~9.3k

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 zhe-qi/clhoria-template at commit 589f13e, republished under its MIT licence (© zhe-qi). 228 words, ~887 tokens.

Download SKILL.mdSave it as .claude/skills/effect-v4/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.

name: effect-v4
description: Effect v4 模式指南。当需要创建 Effect 服务、定义错误类型、编写 Effect 程序、管理 Layer 组合、或使用 Effect 封装异步操作时使用
argument-hint: [service/error/layer/pattern]

Effect v4 Best Practices

本 skill 为 Effect v4 (4.0.0-beta.48) 在本项目中的使用提供规范化指南。

技术栈

Effect: 4.0.0-beta.48（Context.Service、Data.TaggedError、Layer）
HTTP: Hono（非 Effect HttpApi）
验证: Zod v4（非 Effect Schema）
ORM: Drizzle（PostgreSQL）
日志: Pino（非 Effect.log）
队列: BullMQ + Redis (ioredis)

文件结构

src/lib/infrastructure/effect/
├── index.ts          # Barrel exports
├── errors.ts         # Data.TaggedError 定义
├── services/         # Context.Service 定义
│   ├── db.ts         # DbService
│   ├── logger.ts     # LoggerService
│   └── bullmq.ts     # BullMQService
└── layers/
    └── live.ts       # InfraLayer = Layer.mergeAll(...)

核心规则速查

类别	DO	DON'T
Service 定义	`Context.Service<Self, Shape>()("tag")`	`Effect.Service` (v3 API)
Service 构造	`Layer.succeed(Tag, instance)` / `Layer.effect(Tag, ...)`	在使用处 `Effect.provide`
错误类型	`Data.TaggedError("Tag")<{ fields }>`	`Schema.TaggedError` / 普通 Error
错误处理	`catchTag` / `catchTags` 按标签匹配	`catchAll` / `mapError` 丢失类型
追踪函数	`Effect.fn("Service.method")(function* ...)`	匿名 generator 无追踪名
异步包装	`Effect.tryPromise({ try, catch })`	Effect 内部 raw `await`
错误抛出	`yield* Effect.fail(new XxxError(...))`	Effect.gen 内 `throw`
Layer 组合	`Layer.mergeAll` 平铺同级	深层嵌套 `Layer.provide`
Layer 链式	`Layer.provideMerge` 增量组合	多层 `Layer.provide`（类型爆炸）
执行边界	`Effect.runPromise` 仅在 Hono handler 入口	Service 内部 `runPromise`

v3 → v4 迁移对照

v3	v4	说明
`Effect.Service<T>()("name", { accessors, dependencies, effect })`	`Context.Service<T, Shape>()("name")` + `Layer.succeed/effect`	Service 类只是标签，Layer 独立构造
`accessors: true` → `Service.method()`	`yield* ServiceTag` → `service.method()`	先获取 service 实例再调方法
`dependencies: [Dep.Default]`	`Layer.provide(depLayer)` / `Layer.provideMerge(depLayer)`	依赖关系在 Layer 组合时声明
`Schema.TaggedError<T>()("tag", { fields })`	`Data.TaggedError("tag")<{ fields }>`	不需要 Schema 字段，用 TS readonly
`HttpApiSchema.annotations({ status: 404 })`	Hono handler 中 `c.json(Resp.fail(...), 404)`	HTTP 状态码在路由层处理
`Config.string("KEY")`	`import env from "@/env"`	项目用 Zod 验证的 env
`Effect.log("msg")`	`logger.info({ data }, "[Module]: msg")`	项目用 Pino
`Schema.Option(Schema.String)`	`field: string \| null`	项目用 Drizzle/Zod 可空类型

与项目集成

Effect 在本项目中的定位是 基础设施编排层，不是全栈框架。边界清晰：

Hono Handler (async/await)
  └─ Effect.runPromise(program)    ← 边界：进入 Effect 世界
       └─ Effect.gen(function* () {
            const db = yield* DbService;     ← 获取 service
            const result = yield* Effect.tryPromise(...);  ← 异步操作
            return result;
          })

入口点（允许 Effect.runPromise）：

Hono route handler
BullMQ Worker processor
Bootstrap 初始化
Singleton destroy 回调

Service 内部（禁止 Effect.runPromise）：

返回 Effect.Effect<A, E, R>
用 yield* 组合其他 Effect
用 Effect.tryPromise 包装异步

参考文档

Service 模式 — Context.Service + Layer 定义、Effect.fn 追踪
错误模式 — Data.TaggedError + catchTag/catchTags
Effect 组合 — Effect.gen/fn/tryPromise/并发
资源管理 — acquireUseRelease/Scope/优雅关闭
反模式 — 禁止模式 + 项目例外

Files

SKILL.md and 5 other files (references) in .agents/skills/effect-v4 of zhe-qi/clhoria-template.

SKILL.md
references/anti-patterns.md
references/effect-composition.md
references/error-patterns.md
references/resource-management.md
references/service-patterns.md

Open the folder on GitHubat commit 589f13e

Compare with similar skills

Effect V4 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.

Effect V4 compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Effect V4 this skillzhe-qi/clhoria-template	193	—	~887	Automated safety check: Pass	MIT	2 mo ago
Backend ExpertCaoMeiYouRen/caomei-auth	220	—	~329	Automated safety check: Pass	MIT	8 days ago
Hono Idiomsirahardianto/awesome-agv	157	—	~3k	Automated safety check: Pass	MIT	4 days ago
Hono Routingsecondsky/claude-skills	227	—	~3.6k	Automated safety check: Pass	MIT	11 days ago
Typescript Idiomsirahardianto/awesome-agv	157	—	~6.1k	Automated safety check: Pass	MIT	4 days ago
Better Drizzlealmeidazs/better-drizzle	348	—	~1.7k	Automated safety check: Pass	Apache-2.0	yesterday

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Questions about Effect V4

What does Effect V4 do?

Effect v4 模式指南。当需要创建 Effect 服务、定义错误类型、编写 Effect 程序、管理 Layer 组合、或使用 Effect 封装异步操作时使用. Effect V4 is an agent skill from zhe-qi/clhoria-template.

When should I use Effect V4?

Effect V4 fits situations like: databases work in your project.

How do I install Effect V4 in Claude Code?

Run `npx skills add zhe-qi/clhoria-template --skill effect-v4 -a claude-code`. Or copy the skill folder (.agents/skills/effect-v4 in zhe-qi/clhoria-template) into .claude/skills/effect-v4 in your project. Claude Code loads it when a task matches its description.

How do I install Effect V4 in Codex?

Run `npx skills add zhe-qi/clhoria-template --skill effect-v4 -a codex`. Or copy the skill folder (.agents/skills/effect-v4 in zhe-qi/clhoria-template) into .agents/skills/effect-v4 in your project. Codex loads it when a task matches its description.

Can I use Effect V4 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 zhe-qi/clhoria-template --skill effect-v4 -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/effect-v4, .gemini/skills/effect-v4, .github/skills/effect-v4 and .opencode/skills/effect-v4 in your project.

What does Effect V4 need to run?

SKILL.md names no scripts, command-line tools or credentials: Effect V4 is instructions for the agent only.

Does Effect V4 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 Effect V4 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 Effect V4 use?

Effect V4 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 Effect V4 use?

About 887 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 8.4k tokens, read only when the agent opens those files.

What are the alternatives to Effect V4?

Skills that share tags, products or a category with Effect V4: Backend Expert (CaoMeiYouRen/caomei-auth, 220 stars), Hono Idioms (irahardianto/awesome-agv, 157 stars), Hono Routing (secondsky/claude-skills, 227 stars) and Typescript Idioms (irahardianto/awesome-agv, 157 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Effect V4?

zhe-qi (a GitHub user) maintains it in zhe-qi/clhoria-template, which has 193 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on July 30, 2026.

Source: zhe-qi/clhoria-template on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Effect V4

Install Effect V4

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Effect v4 Best Practices

技术栈

文件结构

核心规则速查

v3 → v4 迁移对照

与项目集成

参考文档

Files

Compare with similar skills

Similar skills

Backend Expert

Hono Idioms

Hono Routing

Typescript Idioms

Better Drizzle

Add Backend

More from zhe-qi/clhoria-template

Bullmq

Create Tier

Crud

DB Schema

Drizzle V1

Source Command Opsx Explore

Questions about Effect V4

Install Effect V4

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Effect v4 Best Practices

技术栈

文件结构

核心规则速查

v3 → v4 迁移对照

与项目集成

参考文档

Files

Compare with similar skills

Similar skills

More from zhe-qi/clhoria-template

Related

Questions about Effect V4