hr-skills: Skill for Claude Code

.agents/skills/dry-refactoring/SKILL.md

dry-refactoring is a skill for Claude Code, Codex from tuanductran/hr-skills. It costs 51 tokens per session (1,234 once invoked), scanned A, original, MIT.

A guided process for removing copy-and-paste duplication from TypeScript packages after jscpd, a tool that detects repeated code, reports matches. It explains how to extract shared functions, constants, and types safely.

In plain words
What is it for?
Use it to inspect duplicate code, choose where shared code belongs, update every call site, run type checks and tests, and confirm the duplication is gone.
Why use it?
It helps reduce repeated code without changing only the reported locations or missing other callers that use the same logic.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is tuanductran/hr-skills's own configuration. It tells Claude Code and Codex how to work on hr-skills 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 hr-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tuanductran/hr-skills. 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/tuanductran/hr-skills/main/.agents/skills/dry-refactoring/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tuanductran/hr-skills

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 dry-refactoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/tuanductran/hr-skills/dry-refactoring/github.svg)](https://agentmods.dev/skills/tuanductran/hr-skills/dry-refactoring)
Your own site
<a href="https://agentmods.dev/skills/tuanductran/hr-skills/dry-refactoring"><img src="https://agentmods.dev/badge/skills/tuanductran/hr-skills/dry-refactoring/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 dry-refactoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/tuanductran/hr-skills/dry-refactoring"><img src="https://agentmods.dev/badge/skills/tuanductran/hr-skills/dry-refactoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,234 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 $0.00051 $0.01234
Opus 5 $0.00026 $0.00617
Sonnet 5 $0.00010 $0.00247
Haiku 4.5 $0.00005 $0.00123

Measured 2d ago against content hash 5e2f37b55515, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

dry-refactoring 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.

.agents/skills/dry-refactoring/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

dry-refactoring

Guided workflow to eliminate copy-paste duplication in packages/* TypeScript source. Use after jscpd has produced a clone list.

Prerequisites

Run jscpd first — see jscpd for the exact command this repo uses:

bunx jscpd@5 packages --reporters ai --format typescript

Workflow

  1. Run jscpd, scoped to packages/ only (never skills/, see the jscpd skill for why).
  2. Parse each clone line to identify the two duplicated locations (file + line range).
  3. Read both code fragments and understand what they do — don't refactor blind.
  4. Decide the refactor target using the placement rules below.
  5. Extract the shared logic; update all call sites, not just the two jscpd reported.
  6. Run bun run typecheck and bun run test (repo-wide or --filter to the affected package — see turbo).
  7. Re-run jscpd to confirm the clone is gone.
  8. Repeat, highest-impact cluster first (most repeated pattern, not just the first line in the report).

Where extracted code goes in this repo

This repo separates code by surface and domain under packages/hr-skills/src/cli/, packages/hr-skills-build/src/client/, packages/hr-skills-build/src/server/, packages/hr-skills-ref/src/client/, and packages/hr-skills-ref/src/server/. Follow that structure — don't dump extracted helpers into whichever file happens to be open:

  • Duplicated logic used by 2+ files in the same domain folder (e.g. two files under src/server/validation/) → new file in that same folder, e.g. src/server/validation/security-helpers.ts, imported by both.
  • Duplicated logic used across domain folders (e.g. src/server/build/* and src/server/evaluation/*) → src/server/shared/, alongside the existing shared/constants.ts, shared/helpers.ts, shared/schema.ts, shared/types.ts.
  • Duplicated logic across packages (hr-skills-build and hr-skills-ref both define it) → do not create a third copy in either package. Prefer keeping a single canonical definition in the package it conceptually belongs to (hr-skills-ref for skill-file parsing primitives, hr-skills-build for build/registry/CLI concerns) and importing it from the other, or promote it to a small shared internal package if both genuinely need to own it independently. Never resolve this by copy-pasting into a third location.
  • Intentional client/server duplication → each public surface must remain self-contained. If sharing a module would create a client/server import edge, keep separate surface-local implementations and test both surfaces instead.
  • Constants → their own constants.ts in the relevant folder; don't fold them into a file that already holds functions or types.
  • Types/interfaces → their own types.ts (or *.types.ts if types.ts already exists and would grow unrelated concerns) in the relevant folder — never appended to a functions file "for now."

Read the full file on GitHub · 75 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. 2d ago Changed · +7 lines 5e2f37b55515
  2. 12d ago First seen · 68 lines · 51 tokens per session scan A 2219660f148a

Subscribe to this mod's changes

dry-refactoring is a skill published in the GitHub repository tuanductran/hr-skills (57 stars, last pushed yesterday), licensed MIT. It adds 51 tokens to every session and 1,234 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.

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