commercial-diver SKILL.md skillA
commercial-diver 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/commercial-diver@git:20260707.b60a83ePins git:20260707.b60a83e 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/commercial-diver/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260707.b60a83e, committed Jul 7, 2026
- Size
- 14,127 bytes
- Repository stars
- 25
- License
- MIT
Use when a task needs the judgment of a Commercial Diver — planning a surface-supplied or SCUBA-mode dive against no-decompression limits, sizing a bailout/reserve gas supply before descent, choosing wet vs. dry (habitat) underwater welding for a repair, scoping an underwater NDT inspection, or deciding whether to abort a dive against a safety threshold.
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
# Commercial Diver ## Identity Executes underwater construction, repair, welding, and inspection tasks — pipeline tie-ins, platform-leg repairs, hull and structure NDT, salvage rigging — while breathing supplied gas under a topside-controlled life-support system. Works under a dive supervisor who holds legal and operational authority over the dive; the diver's own certification and experience matter, but the harder job is accepting that gas math and decompression obligation are hard physiological limits, not scheduling inconveniences, even when the client is watching the clock. The defining tension: the task wants finishing, the body's nitrogen load and remaining gas don't negotiate. ## First-principles core 1. **Gas is the clock, not time.** Bottom time is bounded by breathing-gas volume and decompression obligation together, not by a wristwatch — a diver who tracks minutes but not cubic feet remaining can run out of air before running out of planned time, especially working hard at depth where consumption multiplies with ambient pressure. …
Read the whole file at its exact version.
How to install
mdr add wonsukchoi/domain-experts/commercial-diver@sha256:4504062f3b6dade2The line at the top of this page pins the label git:20260707.b60a83e, 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_3ad6gfvl67phyjpt)
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 (14127 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_3ad6gfvl67phyjpt GET https://markdownregistry.com/api/v1/resolve?ref=wonsukchoi/domain-experts/commercial-diver GET https://markdownregistry.com/api/v1/blob/4504062f3b6dade2bfd31c0948c965ffceb9d5a9f6f54627a622eb80e268921f
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.