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 skills add devcxl/mattpocock-skills-zh --skill migrate-to-shoehorngit clone --depth 1 https://github.com/devcxl/mattpocock-skills-zhWrote 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.
[](https://agentmods.dev/skills/devcxl/mattpocock-skills-zh/migrate-to-shoehorn)<a href="https://agentmods.dev/skills/devcxl/mattpocock-skills-zh/migrate-to-shoehorn"><img src="https://agentmods.dev/badge/skills/devcxl/mattpocock-skills-zh/migrate-to-shoehorn/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.
<a href="https://agentmods.dev/skills/devcxl/mattpocock-skills-zh/migrate-to-shoehorn"><img src="https://agentmods.dev/badge/skills/devcxl/mattpocock-skills-zh/migrate-to-shoehorn.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00053 | $0.00831 |
| Opus 5 | $0.00026 | $0.00415 |
| Sonnet 5 | $0.00011 | $0.00166 |
| Haiku 4.5 | $0.00005 | $0.00083 |
Grade A, and why
migrate-to-shoehorn 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 12d 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
迁移到 Shoehorn
为什么使用 shoehorn？
shoehorn 让你在测试中传递部分数据，同时保持 TypeScript 类型正确。它用类型安全的替代方案取代了 as 断言。
仅限测试代码。 切勿在生产代码中使用 shoehorn。
as 在测试中的问题：
- 习惯上被训练不要使用它
- 必须手动指定目标类型
- 双重
as（as unknown as Type）用于传递故意错误的数据
安装
npm i @total-typescript/shoehorn
迁移模式
大型对象，只用到少数属性
迁移前：
type Request = {
body: { id: string };
headers: Record<string, string>;
cookies: Record<string, string>;
// ...还有 20 个属性
};
it("gets user by id", () => {
// 只关心 body.id，但必须伪造整个 Request
getUser({
body: { id: "123" },
headers: {},
cookies: {},
// ...伪造所有 20 个属性
});
});
迁移后：
import { fromPartial } from "@total-typescript/shoehorn";
it("gets user by id", () => {
getUser(
fromPartial({
body: { id: "123" },
}),
);
});
as Type → fromPartial()
迁移前：
getUser({ body: { id: "123" } } as Request);
迁移后：
import { fromPartial } from "@total-typescript/shoehorn";
getUser(fromPartial({ body: { id: "123" } }));
as unknown as Type → fromAny()
迁移前：
getUser({ body: { id: 123 } } as unknown as Request); // 故意传错类型
迁移后：
import { fromAny } from "@total-typescript/shoehorn";
getUser(fromAny({ body: { id: 123 } }));
各函数的适用场景
| 函数 | 使用场景 |
|---|---|
fromPartial() |
传递部分数据，仍能通过类型检查 |
fromAny() |
传递故意错误的数据（保留自动补全） |
fromExact() |
强制传入完整对象（后续可替换为 fromPartial） |
工作流程
-
收集需求 — 询问用户：
- 哪些测试文件中的
as断言造成了问题？ - 是否涉及大型对象，只有部分属性是重要的？
- 是否需要传递故意错误的数据用于错误测试？
- 哪些测试文件中的
-
安装并迁移：
- 安装：
npm i @total-typescript/shoehorn - 查找含有
as断言的测试文件：grep -r " as [A-Z]" --include="*.test.ts" --include="*.spec.ts" - 将
as Type替换为fromPartial() - 将
as unknown as Type替换为fromAny() - 从
@total-typescript/shoehorn添加 import - 运行类型检查以验证
- 安装：
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.
- 12d ago First seen · 119 lines · 53 tokens per session scan A f62fd103c644
migrate-to-shoehorn is a skill published in the GitHub repository devcxl/mattpocock-skills-zh (343 stars, last pushed 7d ago), licensed MIT. It adds 53 tokens to every session and 831 once invoked, about $0.0003 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.
Other skills, from other repositories
verification-before-completion
A checklist for verifying work before claiming that it is finished, fixed, built, tested, or ready to submit. It requires fresh command output and evidence for each claim.
writing-skills
A guide for creating and testing reusable instructions for AI agents, called skills. It applies test-driven development, or TDD—the practice of writing tests before implementation—to instruction documents.
test-driven-development
Test-driven development, or TDD, is a way to build software by writing a test that fails, adding the smallest code that makes it pass, and then cleaning up the code. These instructions require that process for features, bug fixes, refactors, and behavior changes.
dsh-webapp-testing
Verify a local web application's rendered browser behavior with console, network, server, and focused regression-test evidence.
dsh-test-first
A test-first process for fixing bugs or adding features: write a failing test, make the smallest change that passes it, then improve the code.
bruno-api-testing
Create, run, and maintain API test collections using Bruno (OpenCollection YAML format and legacy Bru format). Use when the user wants to: (1) create a Bruno API test collection from scratch or from OpenAPI/Swagger specs, (2) write API request files with tests and assertions, (3) run API tests using bru CLI, (4)…