application-builder

application-builder is a skill for Claude Code from VonTerraProject501c3/slushpile. It costs 44 tokens per session (6,941 once invoked), scanned A, original, MIT.

A job-application tool that turns a role folder containing a job description and role analysis into a tailored resume and cover letter. It checks the drafts through repeated independent reviews before sending them to a person for final review.

In plain words
What is it for?
Use it to prepare a resume and cover letter for a particular job opening from files such as the job description, role analysis, profile, stories, and writing preferences.
Why use it?
It reduces the work of matching application materials to a specific role and catching unsupported claims or weak wording. It also keeps factual claims tied to the applicant’s profile.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: positional $N argument.

Part of the slushpile plugin — 11 skills, 8 agents shipped together

Good fit Use it to prepare a resume and cover letter for a particular job opening from files such as the job description, role analysis, profile, stories, and writing preferences.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vonterraproject501c3/slushpile/application-builder
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 VonTerraProject501c3/slushpile --skill application-builder
Clone the repo
git clone --depth 1 https://github.com/VonTerraProject501c3/slushpile

Made for: Claude Code.

Or install slushpile, the plugin that ships this one along with the rest of its 11 skills, 8 agents.

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 application-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/vonterraproject501c3/slushpile/application-builder/github.svg)](https://agentmods.dev/skills/vonterraproject501c3/slushpile/application-builder)
Your own site
<a href="https://agentmods.dev/skills/vonterraproject501c3/slushpile/application-builder"><img src="https://agentmods.dev/badge/skills/vonterraproject501c3/slushpile/application-builder/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 application-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/vonterraproject501c3/slushpile/application-builder"><img src="https://agentmods.dev/badge/skills/vonterraproject501c3/slushpile/application-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,941 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 high

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 →

  • high Anti-Refusal · line 405
    Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.
    Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
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 $0.00044 $0.06941
Opus 5 $0.00022 $0.03470
Sonnet 5 $0.00009 $0.01388
Haiku 4.5 $0.00004 $0.00694

Measured 9d ago against content hash 78de4c43cb8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

application-builder 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 9d 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/application-builder/SKILL.md · 434 lines

How it starts

The opening of the file, as written. The whole thing — 434 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Application Builder

Take a role folder with a job description and a role analysis. Produce a resume and a cover letter that have already survived a seven-agent review.

Announce at start: "Building materials for $ROLE. Reading the JD, the role analysis, and the profile."

Arguments:

  • $1 — path to a role folder containing job_description.md and role_analysis.md

Example:

/slushpile:application-builder applications/Acme/Engineering/Staff-SRE

Prerequisites

Read all of these before writing anything:

  • profile.md — the source of truth for every factual claim. Nothing goes on a resume that is not in here.
  • stories.md — the shortlist the cover letter's story comes from
  • preferences.yaml — constraints, claimed differentiators, and voice.agent
  • The definition of the agent named in voice.agent — how this person writes
  • The role's job_description.md
  • The role's role_analysis.md

Check voice.is_mine in preferences.yaml before drafting the cover letter. If it is false, the user has not yet generated a voice agent from their own writing and the pipeline is about to write in a stranger's voice. Say so once, plainly, and point them at https://github.com/aaddrick/written-voice-replication. Then continue if they want to — a placeholder voice is fine for seeing the pipeline work, and it is not fine for a letter they actually send. They cannot make that call if nobody tells them.

If role_analysis.md does not exist, stop and run /slushpile:job-board-search for this company first, or write the analysis by hand. Building materials without a pool assessment means targeting the posting instead of the queue, and the queue is what decides.

Every templates/... path in this file is relative to the plugin, not to the workspace. The working directory is the user's job-search directory and does not contain them, so a bare templates/cover_letter.tex resolves to nothing. Resolve them against the directory this skill file was itself loaded from — that works on every harness, where a harness-specific plugin-root variable does not.

Read the full file on GitHub · 434 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. 9d ago First seen · 434 lines · 44 tokens per session scan A 78de4c43cb8e

Subscribe to this mod's changes

application-builder is a skill published in the GitHub repository VonTerraProject501c3/slushpile (15 stars, last pushed 22d ago), licensed MIT. It adds 44 tokens to every session and 6,941 once invoked, about $0.0002 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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