dependency-injection

dependency-injection is a skill for Claude Code, Codex from noel-yap/dot-ai. It costs 156 tokens per session (3,279 once invoked), scanned A, original, no licence file.

A guide for changing TypeScript code so its external collaborators can be supplied from outside the unit being tested. Collaborators include databases, HTTP clients, clocks, random-number generators, environment settings, and loggers.

In plain words
What is it for?
Refactoring TypeScript units so tests can provide controlled databases, clients, clocks, random values, environment settings, or loggers.
Why use it?
It removes the need to patch modules or replace global values in tests when dependencies are hardcoded inside the code.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Refactoring TypeScript units so tests can provide controlled databases, clients, clocks, random values, environment settings, or loggers.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/noel-yap/dot-ai/dependency-injection
Install

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.

Any agent
npx skills add noel-yap/dot-ai --skill dependency-injection
Clone the repo
git clone --depth 1 https://github.com/noel-yap/dot-ai

Made for: Claude Code, 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 dependency-injection

README.md
[![agentmods](https://agentmods.dev/badge/skills/noel-yap/dot-ai/dependency-injection/github.svg)](https://agentmods.dev/skills/noel-yap/dot-ai/dependency-injection)
Your own site
<a href="https://agentmods.dev/skills/noel-yap/dot-ai/dependency-injection"><img src="https://agentmods.dev/badge/skills/noel-yap/dot-ai/dependency-injection/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 dependency-injection

Your own site · 80×15
<a href="https://agentmods.dev/skills/noel-yap/dot-ai/dependency-injection"><img src="https://agentmods.dev/badge/skills/noel-yap/dot-ai/dependency-injection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 156 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,279 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.
Origin unknown 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 $0.00156 $0.03279
Opus 5.5 $0.00062 $0.01312
Sonnet 5.5 $0.00031 $0.00656
Haiku 4.5 $0.00016 $0.00328

Measured 2mo ago against content hash 376c246949ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dependency-injection 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 2mo ago.

The scan reads SKILL.md. This mod also ships 8 executable files (evals/_assertions.py, evals/conftest.py, evals/samples/order_shipper.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/dependency-injection/SKILL.md · 326 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 326 lines · 156 tokens per session scan A 376c246949ce

Subscribe to this mod's changes

dependency-injection is a skill published in the GitHub repository noel-yap/dot-ai (2 stars, last pushed 3mo ago), with no licence file. It adds 156 tokens to every session and 3,279 once invoked, about $0.0006 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 2026-08-31.

Related

dependency-injection compared with skills from other repositories

dependency-injection next to 6 skills from other repositories
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dependency-injectionnoel-yap/dot-aiSkill23mo agononeA156Claude Code, Codex
test-masterJeffallan/claude-skillsSkill12k7d agoMITA104Claude Code
migrate-xunit-to-xunit-v3dotnet/skillsSkill5.8ktodayMITA149Claude Code
go-testingGentleman-Programming/gentle-aiSkill8.5ktodayMITA26Claude Code, Codex
principle-test-behavior-not-implementationmichael-denyer/pstack-claudeSkill4.1kyesterdayMITA50Claude Code
dart-testdartsim/dartSkill1.2kyesterdayBSD-2-ClauseA18Claude Code, Codex
test-generatorrshankras/claude-code-apple-skillsSkill867todayMITA33Claude Code