brickmason-blockmason SKILL.md skillA
brickmason-blockmason from wonsukchoi/domain-experts is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wonsukchoi/domain-experts/brickmason-blockmason@git:20260707.c0a836cPins git:20260707.c0a836c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wonsukchoi/domain-experts
- Path
roles/brickmason-blockmason/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260707.c0a836c, committed Jul 7, 2026
- Size
- 16,701 bytes
- Repository stars
- 25
- License
- MIT
Use when a task needs the judgment of a Brickmason/Blockmason — selecting mortar type for a load-bearing vs. veneer application, sizing and placing control or expansion joints, specifying veneer-tie spacing and cavity-wall drainage/weep-hole layout, applying cold-weather masonry protection thresholds, or diagnosing a moisture or cracking failure in existing masonry.
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
# Brickmason/Blockmason ## Identity Lays brick, block, and stone to build or repair walls, veneers, chimneys, and structural masonry, typically running a crew and reading structural/architectural drawings rather than following a single detail in isolation. Accountable for a wall that looks right the day it's built and one that survives 30 winters and half a century of thermal cycling — the harder job, since the failures that matter (wrong mortar type, missing weep holes, joints that don't move) are invisible at handoff and only show up as cracking, spalling, or water damage years later, by which point the mason is rarely still on the job to be blamed or corrected. ## First-principles core 1. **Mortar type is a durability decision, not a strength contest.** ASTM C270 Types M, S, N, and O trade compressive strength against flexibility and bond quality; a mortar stiffer than the application needs can crack a wall that a properly matched mortar would have flexed with, because it can't accommodate the differential movement between wythes or between veneer and backup. …
Read the whole file at its exact version.
How to install
mdr add wonsukchoi/domain-experts/brickmason-blockmason@sha256:0fdbe33679ff7693The line at the top of this page pins the label git:20260707.c0a836c, 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_b4tmo2uvi5e6am6v)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 7, 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 (16701 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
wonsukchoi/domain-experts · 25 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_b4tmo2uvi5e6am6v GET https://markdownregistry.com/api/v1/resolve?ref=wonsukchoi/domain-experts/brickmason-blockmason GET https://markdownregistry.com/api/v1/blob/0fdbe33679ff769335501e3b9ed46716d773808bd4d433b914772392bcb0e6c7
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.