Use a skill with your AI agent
Download a focused instruction package. You need an agent that can load it and the tools listed on its product page.
Find an agent skill// agent skills, built on the open SKILL.md standard
Practical AI agent skills for work that needs doing.
Find focused help for job searches, hiring, creator operations, sales data and developer workflows. Each package handles one task and gives you work you can review.
Skills are downloads for an existing AI agent. Prefer no installation? Try a browser-based launch check.
SKILL.md · Claude Code · Codex · Cursor
Read-only by default. Preview before write.
Start with a concrete task
Browse all skills →Evidence-Bound Resume Builder
$12.00Prepare a role-specific resume and matching cover-letter draft from your permitted career facts, with excluded claims and shared provenance.
See requirements, example and current offer →Gumroad Image Preflight
FreeInspect a real Gumroad cover and thumbnail pair, render safe-zone previews, and get PASS, REVIEW, or REWORK findings before upload.
See requirements, example and current offer →AI Build Sanity Check
$13.00Check an AI-built app for work that looks finished but is not: leftover TODOs and stubs, fake or mock data returned as real, errors quietly swallowed, placeholder content, and endpoints that fake success. Read-only, every finding explained in plain English for non-coders.
See requirements, example and current offer →Start with the job you need handled
Or browse free skills →
Prepare for work and hiringResume evidence, interview practice, job-search planning and onboarding readiness.
Make agents more reliable
Instructions, tool schemas, model risk, verification, and failure modes.
Catch security mistakes
Leaks, unsafe commands, permissions, auth, migrations, and pre-launch checks.
Ship cleaner code
Testing, CI, docs, handoffs, contracts, accessibility, and deployment.
Protect the brand and voice
Handles, social assets, consistency, localization, and anti-slop editing.
Turn sales data into action
Lead research, outreach, pipeline forecasting, deal rooms, and rep reporting.
Run creator commerce
Product publishing, SEO, images, contracts, invoices, and meeting output.
// free launch check
Launching an AI-built app? Check what you have actually tested.
Answer six questions. The page flags gaps and points you to the right skill, guide, sample report, or human review. Your answers are not saved.
$0 · no account · no upload · no saved answers
Choose how you want to work
Use a tool in your browser
No agent installation required. Start with the free launch check, or use a planning checker for a specific job.
Try the free launch checkRequest an assisted review
Prefer help reviewing your launch evidence? Read the scope, price and required materials before requesting the service.
See the review serviceWho builds these
JustHandled Labs is built by H.J. Westerfield, with a background in communications, editing, project coordination, and practical AI systems. The catalog has grown well past developer workflow: repo and app safety, model risk and resilience for the era of models that get pulled or deprecated, pre-launch checks for non-technical founders, brand and social-presence tools, writing and anti-slop, and the agent-native layer (AGENTS.md, llms.txt, tool schemas). The throughline is the same as day one: one skill, one repeatable task, with output you can inspect.
Questions
What is an agent skill?
A small package of instructions and scripts, written to the open SKILL.md standard, that teaches an AI coding assistant how to do one specific task. You add it once, and the assistant uses it when the work matches.
Which assistants do these work with?
Anything that reads SKILL.md, including Claude Code, Codex, and Cursor. The format is open, so the skills are not locked to a single tool or vendor.
Are they safe to run on my repo?
The scanning skills are read-only by default and preview every change before writing. Nothing touches your files or your database without your confirmation.
How do I install one?
Browse the full catalog here, open a skill, then buy or download it on Agensi. Each listing includes setup steps and what it reads. New to Agensi? Start through our referral link, then return to the skill you chose.
Field Notes: AI changes in practice
Claude Code mods do not replace skills. Choose the right layer and understand what to test. Read our updates →