PowerX: Skill for Codex

.codex/skills/crud/repository/SKILL.md

crud-repository is a skill for Codex from ArtisanCloud/PowerX. It costs 21 tokens per session (2,708 once invoked), scanned A, original, Apache-2.0.

A set of rules for repository code, where a repository is the part of an application that reads and writes stored data. It defines patterns for data access, tenant separation, soft deletion, pagination, transactions, and errors in Go projects.

In plain words
What is it for?
Use it when implementing or checking CRUD repository code with GORM, a Go database library, especially in a multi-tenant application.
Why use it?
It keeps database access separate from business logic and helps prevent one customer’s data from appearing in another customer’s results. It also gives implementations a consistent structure that can be tested.

Skill for Codex

Written for Codex: installed under .codex/.

This is ArtisanCloud/PowerX's own configuration. It tells Codex how to work on PowerX itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything PowerX configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ArtisanCloud/PowerX. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ArtisanCloud/PowerX/release/v1.0.0/.codex/skills/crud/repository/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ArtisanCloud/PowerX

Made for: Codex.

Wrote 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.

agentmods badge for crud-repository

README.md
[![agentmods](https://agentmods.dev/badge/skills/artisancloud/powerx/repository/github.svg)](https://agentmods.dev/skills/artisancloud/powerx/repository)
Your own site
<a href="https://agentmods.dev/skills/artisancloud/powerx/repository"><img src="https://agentmods.dev/badge/skills/artisancloud/powerx/repository/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.

agentmods 80×15 button for crud-repository

Your own site · 80×15
<a href="https://agentmods.dev/skills/artisancloud/powerx/repository"><img src="https://agentmods.dev/badge/skills/artisancloud/powerx/repository.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,708 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00021 $0.02708
Opus 5.5 $0.00008 $0.01083
Sonnet 5.5 $0.00004 $0.00542
Haiku 4.5 $0.00002 $0.00271

Measured 1mo ago against content hash e0e17df7ef31, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

crud-repository 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 1mo 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.

.codex/skills/crud/repository/SKILL.md · 268 lines

How it starts

The opening of the file, as written. The whole thing — 268 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PowerX CRUD Repository

步骤

  1. 打开 本文件内嵌规则。
  2. 按规则执行实现/校对。
  3. 完成后按核对清单验收。

核对点

  • 与 PowerX 当前代码结构、路径与命名一致。
  • 仅在传输层/契约层做职责内改动,不跨层越界。

规则(内嵌)

repository.yaml

kind: ruleset
name: crud_repository
version: 1.0.0
owner: powerx
status: stable

meta:
  intent: >
    统一 Repository(持久化)层的接口与实现规范:只负责数据访问与映射,
    不承载业务逻辑;严格多租户隔离、软删、分页筛选与一致的错误/返回语义。
    CoreX 模块仓储统一采用 BaseRepository 泛型封装,便于事务注入与测试。
  references:
    - constitution.md
    - crud_model.yaml
    - crud_migration.yaml
    - crud_dto.yaml
    - crud_di.yaml

scope:
  codebase:
    repo_globs:
      - "internal/repository/**/**_repo.go"
      - "pkg/corex/db/persistence/repository/**/**_repo.go"
    model_globs:
      - "pkg/corex/db/persistence/model/**/**.go"

principles:
  - 目录规范:CoreX 仓库实现放置于 `pkg/corex/db/persistence/repository/<domain>/`,目录名使用 snake_case,对应的模型位于同层级 `model/`。
  - 职责单一:Repository 只做数据访问(SQL/GORM),禁止业务分支与权限判断。
  - 多租户强约束:所有查询均带 TenantID 条件;默认忽略软删(GORM 默认生效)。
  - 事务注入:方法接受 *gorm.DB(可为 tx),由 Service 层控制 tx 生命周期。
  - 上下文贯穿:方法首参为 context.Context,用于 tracing/超时/审计钩子。
  - 错误语义:不存在返回 gorm.ErrRecordNotFound(由 Service 翻译成 404);唯一冲突返回 ErrConflict(由 Service 翻译 409)。
  - 可测试性:提供接口与实现;实现命名 `XxxRepoImpl`,禁止全局单例。
  - 性能:列表查询必须显式选择字段/建立索引,禁止 N+1(注意 Preload 选择性)。

checks:

  # 目录/文件命名
  - id: repo.file.naming
    level: error
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - must_package_suffix: "repo"

  # BaseRepository 形态
  - id: repo.base_repository.pattern
    level: error
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - must_contain_regex: "type [A-Za-z0-9]+Repository struct {"
      - must_contain_regex: "\\*repository.BaseRepository"
      - must_contain_regex: "func New[A-Za-z0-9]+Repository\\(db \\*gorm\\.DB\\)"
      - must_not_import: ["github.com/gin-gonic/gin"]  # 不允许直接耦合 HTTP

  # 方法签名(ctx + db)
  - id: repo.method.signature
    level: error
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - must_contain_regex: "func \\(r \\*.*Repository\\) .*\\(ctx context\\.Context, db \\*gorm\\.DB"
      - must_import: ["context","gorm.io/gorm"]

  # 多租户条件
  - id: repo.must.tenant.scope
    level: error
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - contains_any:
          - "Where(\"tenant_id = ?\""
          - "Scopes(TenantScope("
          - "WithTenant("
    message: "所有 CRUD 查询必须带 TenantID(直写 Where 或统一 Scopes/TenantScope)"

  # 列表与分页(limit/offset 或 cursor)
  - id: repo.list.pagination
    level: error
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - contains_any: ["Limit(","Offset(","Scopes(Paginate("]

  # 冲突与不存在的错误
  - id: repo.error.mapping
    level: warn
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - contains_any: ["gorm.ErrRecordNotFound","ErrDuplicate","unique"]
    message: "建议把 gorm.ErrRecordNotFound 原样返回,由 Service 统一翻译为 404;唯一冲突包装为 ErrConflict"

  # 软删(默认开启),如实现硬删需标注
  - id: repo.soft_delete
    level: warn
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - should_contain_any: ["Delete(&m)","Unscoped().Delete("]

  # 性能/索引使用(建议)
  - id: repo.index.hint
    level: warn
    when: { glob: "internal/repository/**/**_repo.go" }
    assert:
      - should_contain_any: ["Select(","Omit("]

acceptance:
  checklist:
    - "[ ] 每个仓库文件包含接口 + 实现 + New 构造函数"
    - "[ ] 方法签名统一为 (ctx context.Context, db *gorm.DB, ...)"
    - "[ ] 所有查询带 TenantID 条件(Where/Scopes/TenantScope)"
    - "[ ] 列表查询有分页(Limit/Offset 或 Cursor)"
    - "[ ] 不做业务鉴权/分支;错误语义由 Service 统一翻译"
    - "[ ] 使用软删;如需硬删必须在 Service 授权并清晰标注"
    - "[ ] 可被 DI 装配(由 Deps 提供 *gorm.DB 注入)"

templates:

  repo_interface_impl_go: |
    // pkg/corex/db/persistence/repository/{{domain}}/{{resource}}_repo.go
    package {{domain}}repo

    import (
      "context"

      "gorm.io/gorm"
      m "{{module_path}}/pkg/corex/db/persistence/model/{{domain}}"
    )

    // {{Entity}}Repo 数据访问接口
    type {{Entity}}Repo interface {
      Create(ctx context.Context, db *gorm.DB, tenantID uint64, in *m.{{Entity}}) error
      GetByID(ctx context.Context, db *gorm.DB, tenantID uint64, id string) (*m.{{Entity}}, error)
      List(ctx context.Context, db *gorm.DB, tenantID uint64, pg Page, filters map[string]string) ([]*m.{{Entity}}, int64, error)
      Update(ctx context.Context, db *gorm.DB, tenantID uint64, in *m.{{Entity}}) error
      Delete(ctx context.Context, db *gorm.DB, tenantID uint64, id string, hard bool) error

      // Tx 透传辅助(可选)
      WithTx(ctx context.Context, db *gorm.DB, fn func(tx *gorm.DB) error) error
    }

    // 实现
    type {{Entity}}RepoImpl struct {
      db *gorm.DB
    }

    func New{{Entity}}Repo(db *gorm.DB) {{Entity}}Repo {
      return &{{Entity}}RepoImpl{db: db}
    }

    // 分页结构(按项目实际放置到共用包)
    type Page struct {
      Page     int
      PageSize int
      SortBy   string
      SortOrder string
    }

    func (r *{{Entity}}RepoImpl) Create(ctx context.Context, db *gorm.DB, tenantID uint64, in *m.{{Entity}}) error {
      in.TenantID = tenantID
      return db.WithContext(ctx).Create(in).Error
    }

    func (r *{{Entity}}RepoImpl) GetByID(ctx context.Context, db *gorm.DB, tenantID uint64, id string) (*m.{{Entity}}, error) {
      var out m.{{Entity}}
      err := db.WithContext(ctx).
        Where("tenant_id = ? AND id = ?", tenantID, id).
        First(&out).Error
      if err != nil {
        return nil, err // 由 Service 翻译为 404
      }
      return &out, nil
    }

    // 可抽成 Scopes:TenantScope / Filters / Paginate
    func (r *{{Entity}}RepoImpl) List(ctx context.Context, db *gorm.DB, tenantID uint64, pg Page, filters map[string]string) ([]*m.{{Entity}}, int64, error) {
      q := db.WithContext(ctx).Model(&m.{{Entity}}{}).Where("tenant_id = ?", tenantID)

      // 简化:按 filters 动态拼装(生产中建议固定白名单)
      if v, ok := filters["status"]; ok { q = q.Where("status = ?", v) }
      if v, ok := filters["q"]; ok { q = q.Where("name ILIKE ?", "%"+v+"%") }

      // 计数
      var total int64
      if err := q.Count(&total).Error; err != nil { return nil, 0, err }

      // 排序/分页
      orderBy := "created_at desc"
      if pg.SortBy != "" {
        if pg.SortOrder == "" { pg.SortOrder = "desc" }
        orderBy = pg.SortBy + " " + pg.SortOrder
      }
      if pg.Page <= 0 { pg.Page = 1 }
      if pg.PageSize <= 0 { pg.PageSize = 20 }

      var items []*m.{{Entity}}
      err := q.Order(orderBy).
        Limit(pg.PageSize).
        Offset((pg.Page-1)*pg.PageSize).
        Find(&items).Error
      if err != nil { return nil, 0, err }
      return items, total, nil
    }

    func (r *{{Entity}}RepoImpl) Update(ctx context.Context, db *gorm.DB, tenantID uint64, in *m.{{Entity}}) error {
      return db.WithContext(ctx).
        Model(&m.{{Entity}}{}).
        Where("tenant_id = ? AND id = ?", tenantID, in.ID).
        Updates(map[string]any{
          "name":   in.Name,
          "meta":   in.Meta,
          "status": in.Status,
        }).Error
    }

    func (r *{{Entity}}RepoImpl) Delete(ctx context.Context, db *gorm.DB, tenantID uint64, id string, hard bool) error {
      q := db.WithContext(ctx).Where("tenant_id = ? AND id = ?", tenantID, id)
      if hard {
        return q.Unscoped().Delete(&m.{{Entity}}{}).Error
      }
      return q.Delete(&m.{{Entity}}{}).Error
    }

    func (r *{{Entity}}RepoImpl) WithTx(ctx context.Context, db *gorm.DB, fn func(tx *gorm.DB) error) error {
      return db.WithContext(ctx).Transaction(func(tx *gorm.DB) error { return fn(tx) })
    }

  scopes_go: |
    // internal/repository/scopes/scopes.go (可选:集中放置)
    package scopes

    import "gorm.io/gorm"

    func TenantScope(tenantID uint64) func(*gorm.DB) *gorm.DB {
      return func(db *gorm.DB) *gorm.DB {
        return db.Where("tenant_id = ?", tenantID)
      }
    }

    func Paginate(page, pageSize int) func(*gorm.DB) *gorm.DB {
      if page <= 0 { page = 1 }
      if pageSize <= 0 { pageSize = 20 }
      return func(db *gorm.DB) *gorm.DB {
        return db.Limit(pageSize).Offset((page-1)*pageSize)
      }
    }

Read the full file on GitHub · 268 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.

  1. 1mo ago First seen · 268 lines · 21 tokens per session scan A e0e17df7ef31

Subscribe to this mod's changes

crud-repository is a skill published in the GitHub repository ArtisanCloud/PowerX (382 stars, last pushed 2d ago), licensed Apache-2.0. It adds 21 tokens to every session and 2,708 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-04.

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