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.
npx agentmods add skills/sourcelin/sourcelin-cloud-blog/backend-devnpx skills add SourceLin/sourcelin-cloud-blog --skill backend-devgit clone --depth 1 https://github.com/SourceLin/sourcelin-cloud-blogWhat 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 | $0.00032 | $0.00596 |
| Opus 5 | $0.00016 | $0.00298 |
| Sonnet 5 | $0.00006 | $0.00119 |
| Haiku 4.5 | $0.00003 | $0.00060 |
Grade A, and why
backend-dev 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.
What it actually says
后端开发技能
使用场景
-
修改
sourcelin-gateway、sourcelin-auth、sourcelin-modules/*、sourcelin-common/*、sourcelin-api/*。 -
新增或改造 REST 接口、业务服务、Mapper XML、DTO/VO。
-
治理异常处理、公共能力、模块边界或 Feign 协议。
输入
-
需求说明或待修改接口。
-
当前 Controller、Service、Mapper、domain 代码。
-
数据库表结构或 SQL 脚本。
输出
-
符合后端分层和 API 契约的代码改动。
-
必要的 DTO/VO、Mapper XML、SQL 或文档同步。
-
已执行 Maven 验证命令和结果。
执行步骤
-
读取
AGENTS.md、rules/backend.md、rules/api-contract.md、rules/coding-conventions.md、rules/testing-and-validation.md。 -
定位模块边界：公共能力进
sourcelin-common/*，业务逻辑进sourcelin-modules/*，Feign 进sourcelin-api/*。 -
Controller 只接收参数、校验、权限注解和调用 Service。
-
Service 实现业务规则、事务、状态流转和
BusinessException。 -
Mapper XML 放在
src/main/resources/mapper/**，数值条件只判断!= null。 -
对外 REST 返回业务对象、
ListResult<T>、PageResult<T>、IdResponse或Void。 -
修改后按影响范围运行 Maven 编译或单测；涉及接口时同时审查 API 契约硬规则。
依赖 rules
-
rules/backend.md -
rules/api-contract.md -
rules/coding-conventions.md -
rules/testing-and-validation.md
禁止行为
-
禁止对外 Controller 返回
AjaxResult、TableDataInfo、Map<String,Object>、R<T>。 -
禁止 Controller 手工包装
ApiResponse。 -
禁止业务代码返回错误字符串或裸 Map。
-
禁止网关因通用 Web 异常处理依赖
common-security。 -
禁止把业务逻辑写入
sourcelin-common。
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 50 lines · 32 tokens per session scan A 2fa4a616cd24
backend-dev is a skill published in the GitHub repository SourceLin/sourcelin-cloud-blog (20 stars, last pushed 2mo ago), licensed MIT. It adds 32 tokens to every session and 596 once invoked, about $0.0002 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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