marketplace-purchase-vetting SKILL.md skillA
marketplace-purchase-vetting from atlasomnia/hermes-custom-pack is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add atlasomnia/hermes-custom-pack/marketplace-purchase-vetting@git:20260806.7ef637fPins git:20260806.7ef637f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- atlasomnia/hermes-custom-pack
- Path
skills/marketplace-purchase-vetting/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260806.7ef637f, committed Aug 6, 2026
- Size
- 11,892 bytes
- Repository stars
- 71
- License
- MIT
marketplace-purchase-vetting — Search/discover AND vet Facebook Marketplace/Craigslist/private-party purchases. Two modes: find the best live options in the area within a budget, then vet promising candidates for too-good-to-be-true risk. Covers vehicles, boats, trailers, equipment, and other high-dollar local listings.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Marketplace Purchase Vetting
Use this when the user asks whether a local listing is a scam, "too good to be true," worth looking at, or a good deal. Also use this when he asks you to **find** options — search/discover candidates, then vet the best ones. The goal is not a generic buying guide; it is a practical risk read with clear next steps.
Two modes: **Discovery** (find me options) and **Vetting** (check this listing). Run them in sequence when the user hasn't identified a specific listing.
---
## Mode 1: Discovery — Search for candidates in the area
Run this first when the user says "find me a car/suv/truck for $X in our area" without a specific link. The output is a ranked shortlist of the best live options.
### Facebook Marketplace search procedure
Read before a broad or tightly constrained vehicle hunt; it documents radius conversion, ignored filters, regional partitioning, feed virtualization, and dealer/down-payment traps.
1. **Set up the search URL.** Facebook Marketplace uses structured URL parameters:
```
https://www.facebook.com/marketplace/{city}/vehicles?minPrice={min}&maxPrice={max}&sortBy=creation_time_descend&exact=false
```
…Read the whole file at its exact version.
How to install
mdr add atlasomnia/hermes-custom-pack/marketplace-purchase-vetting@sha256:3aadf3f0c947faa0The line at the top of this page pins the label git:20260806.7ef637f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_t7iumgza2m5ds2rv)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 6, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11892 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
atlasomnia/hermes-custom-pack · 71 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_t7iumgza2m5ds2rv GET https://markdownregistry.com/api/v1/resolve?ref=atlasomnia/hermes-custom-pack/marketplace-purchase-vetting GET https://markdownregistry.com/api/v1/blob/3aadf3f0c947faa040a2f0588b7b1f6297c97515c19d322b0dc60f21ee43ba68
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.