resume-ats-optimizer

resume-ats-optimizer is a skill for Claude Code, Codex from Chasen-Liao/resume-skills. It costs 68 tokens per session (756 once invoked), scanned A, original, MIT.

An audit of a résumé's ATS readability and job-description keyword coverage. An ATS is software employers use to parse and screen applications.

In plain words
What is it for?
Checking HTML or PDF résumés for parsing risks, comparing them with a job description, reporting keyword coverage, and suggesting ATS-safe presentation changes without inventing qualifications.
Why use it?
It finds formatting that may be difficult for résumé-screening software to read and separates fixable presentation issues from skills or evidence the résumé genuinely lacks.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python skills/resume-builder/scripts/validate_resume.py --html <resume.html> --mode ats.

Part of the resume-skills plugin — 14 skills shipped together

Good fit Checking HTML or PDF résumés for parsing risks, comparing them with a job description, reporting keyword coverage, and suggesting ATS-safe presentation changes without inventing qualifications.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/Chasen-Liao/resume-skills
agentmods
npx agentmods add skills/chasen-liao/resume-skills/resume-ats-optimizer

Made for: Claude Code, Codex.

Or install resume-skills, the plugin that ships this one along with the rest of its 14 skills.

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 resume-ats-optimizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/chasen-liao/resume-skills/resume-ats-optimizer/github.svg)](https://agentmods.dev/skills/chasen-liao/resume-skills/resume-ats-optimizer)
Your own site
<a href="https://agentmods.dev/skills/chasen-liao/resume-skills/resume-ats-optimizer"><img src="https://agentmods.dev/badge/skills/chasen-liao/resume-skills/resume-ats-optimizer/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 resume-ats-optimizer

Your own site · 80×15
<a href="https://agentmods.dev/skills/chasen-liao/resume-skills/resume-ats-optimizer"><img src="https://agentmods.dev/badge/skills/chasen-liao/resume-skills/resume-ats-optimizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 756 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 19
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
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 $0.00068 $0.00756
Opus 5 $0.00034 $0.00378
Sonnet 5 $0.00014 $0.00151
Haiku 4.5 $0.00007 $0.00076

Measured 12d ago against content hash b44182459002, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

resume-ats-optimizer 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.

skills/resume-ats-optimizer/SKILL.md · 54 lines

What it actually says

ATS 简历审计器

将“更容易被解析”的建议与“保证通过筛选”明确区分,并保持候选人事实不变。

先读

读取 简历事实契约写作规范中的 ATS 输出规则。若当前环境是源码仓库或已安装完整 npm 包 @chasen-liao/resume-skills,可用包内脚本自动检查:

python skills/resume-builder/scripts/validate_resume.py --html <resume.html> --mode ats
python skills/resume-builder/scripts/validate_resume.py --pdf <resume.pdf>

以上脚本随 npm 包发布(skills/resume-builder/scripts/)。在包目录下运行时用 node_modules/@chasen-liao/resume-skills/ 前缀替换 skills/;通过 npx skills add 仅安装 SKILL.md 的环境没有这些脚本,此时按下方工作流做结构化检查即可,不要把脚本路径当作必需步骤。

协作入口

这是母版生成后和 JD 定制版生成后的质量关卡。默认检查并报告解析风险与关键词/事实缺口,但不静默修改简历;用户确认后,才将呈现修复交回 resume-builderjd-tailorer

没有 JD 时只检查可解析性和结构;有 JD 时把“可直接改善的呈现问题”与“必须保留的真实能力缺口”分开报告。它不替代 JD 分析,也不决定是否投递。

工作流

  1. 检查输入格式、是否存在可提取文本、标准章节标题和正文阅读顺序。
  2. 对 HTML 检查图像承载文字、表格、复杂定位、页眉页脚、不可复制文本等风险;对 PDF 检查页数与文本提取。
  3. 从 JD 分析中读取关键词,按“已确认候选人事实中的精确匹配 / 相关表达 / 缺失”报告覆盖情况。
  4. 给出两类建议:呈现修复(可直接做)与事实缺口(只能追问或保留缺口)。
  5. 需要导出时,以同一事实源生成单栏、标准标题、普通文本的 ATS-safe HTML/PDF;不为提高匹配率增加技能。

输出格式

# ATS 审计报告
## 解析与格式
- 通过:…
- 风险:…
## 关键词覆盖
| 关键词 | JD 来源 | 简历证据 | 状态 |
## 建议
1. 可直接修复:…
2. 需要候选人确认:…

约束

  • “ATS-safe”表示降低已知解析风险,不代表任何具体系统一定读取正确。
  • 不使用图片、图表或视觉布局承载关键信息;不改变 claim 内容与证据状态。
  • 不以关键词堆砌替代可读的自然表达。
Files

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.

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. 12d ago First seen · 54 lines · 68 tokens per session scan A b44182459002

Subscribe to this mod's changes

resume-ats-optimizer is a skill published in the GitHub repository Chasen-Liao/resume-skills (28 stars, last pushed 4d ago), licensed MIT. It adds 68 tokens to every session and 756 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.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens

insight-error-page

Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…

vercel/next.js · 83 tokens