resume-writing

resume-writing is a skill for Claude Code, Codex from cosmicstack-labs/mercury-agent-skills. It costs 20 tokens per session (394 once invoked), scanned A, original, MIT.

A guide for writing resumes that work with applicant tracking systems (ATS), the software employers use to scan applications, while remaining readable to people. It covers wording, achievement examples, formatting, and portfolio presentation.

In plain words
What is it for?
Use it to tailor a resume to a job description, include matching keywords, write STAR or CAR achievement bullets, choose suitable file formats, and present a portfolio.
Why use it?
It helps avoid layouts and file features that screening software may miss, such as columns, graphics, headers, and text boxes. It also helps describe work through concrete challenges, actions, and results.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to tailor a resume to a job description, include matching keywords, write STAR or CAR achievement bullets, choose suitable file formats, and present a portfolio.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cosmicstack-labs/mercury-agent-skills/resume-writing
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 cosmicstack-labs/mercury-agent-skills --skill resume-writing
Clone the repo
git clone --depth 1 https://github.com/cosmicstack-labs/mercury-agent-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 resume-writing

README.md
[![agentmods](https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/resume-writing/github.svg)](https://agentmods.dev/skills/cosmicstack-labs/mercury-agent-skills/resume-writing)
Your own site
<a href="https://agentmods.dev/skills/cosmicstack-labs/mercury-agent-skills/resume-writing"><img src="https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/resume-writing/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-writing

Your own site · 80×15
<a href="https://agentmods.dev/skills/cosmicstack-labs/mercury-agent-skills/resume-writing"><img src="https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/resume-writing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 394 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 $0.00020 $0.00394
Opus 5 $0.00010 $0.00197
Sonnet 5 $0.00004 $0.00079
Haiku 4.5 $0.00002 $0.00039

Measured 12d ago against content hash 24638b892c07, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

resume-writing 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.

categories/career/resume-writing/SKILL.md · 52 lines

What it actually says

Resume Writing

Craft resumes that pass ATS filters and impress human reviewers.

ATS Optimization

Must-Do

  • Use standard section headings: Experience, Education, Skills
  • No tables, columns, or graphics in the main content
  • Save as .docx (preferred) or plain PDF (not scanned)
  • Use standard fonts: Arial, Calibri, Helvetica
  • Include keywords from the job description verbatim

Avoid

  • Headers/footers (ATS may miss content there)
  • Icons, logos, or images
  • Text boxes or floating elements
  • Fancy formatting (templates with sidebars often fail ATS)

Achievement Frameworks

STAR (Situation, Task, Action, Result)

Situation: Legacy system had 15s page load times
Task: Reduce to <2s for ecommerce conversion
Action: Implemented CDN caching, lazy loading, DB indexing
Result: Page load reduced to 1.2s, conversion up 23%

CAR (Challenge, Action, Result) — shorter variant

Challenge: 40% customer churn in first 90 days
Action: Built onboarding sequence with 5 touchpoints and milestone tracking
Result: Churn reduced to 12%, NPS improved from 32 to 64

Formatting Rules

  • One page for <10 years experience, two pages max for senior
  • Bullet points: 4-6 per role, 1-2 lines each
  • Quantify everything: %, $, time saved, scale
  • Present tense for current role, past tense for previous
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 · 52 lines · 20 tokens per session scan A 24638b892c07

Subscribe to this mod's changes

resume-writing is a skill published in the GitHub repository cosmicstack-labs/mercury-agent-skills (470 stars, last pushed 17d ago), licensed MIT. It adds 20 tokens to every session and 394 once invoked, about $0.0001 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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