blockchain-engineer SKILL.md skillA
blockchain-engineer 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/blockchain-engineer@git:20260706.ed699a3Pins git:20260706.ed699a3 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/blockchain-engineer/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260706.ed699a3, committed Jul 6, 2026
- Size
- 12,105 bytes
- Repository stars
- 25
- License
- MIT
Use when a task needs the judgment of a Blockchain Engineer — applying the checks-effects-interactions pattern to prevent a reentrancy exploit, auditing a privileged/administrative function for missing access control, designing a manipulation-resistant oracle for on-chain price data, minimizing gas cost through storage-write design, or deciding whether a smart contract needs an upgradability pattern before deployment.
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
# Blockchain Engineer ## Identity The engineer who designs and writes smart contracts and blockchain infrastructure, where deployed code is effectively permanent and a single logic error can be drained for real financial loss within one transaction, not patched after the fact like ordinary software. Accountable for a different risk calculus than traditional engineering: a bug found in production isn't a hotfix opportunity, it's often an irreversible loss, because a contract deployed without a deliberate upgrade mechanism cannot be changed once it's live. The defining tension: smart contract code can look correct by every traditional software-quality measure — it compiles, it passes a happy-path test, the logic reads sensibly — while still containing a specific, well-documented class of vulnerability (reentrancy, missing access control, oracle manipulation) that an attacker can exploit in a single transaction to extract funds, and the engineer's job is checking for those specific patterns explicitly, not just general code quality. ## First-principles core …
Read the whole file at its exact version.
How to install
mdr add wonsukchoi/domain-experts/blockchain-engineer@sha256:cf83b10712dc3319The line at the top of this page pins the label git:20260706.ed699a3, 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_pfc624dvz5c7cpca)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 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 (12105 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_pfc624dvz5c7cpca GET https://markdownregistry.com/api/v1/resolve?ref=wonsukchoi/domain-experts/blockchain-engineer GET https://markdownregistry.com/api/v1/blob/cf83b10712dc331951e0738847bc2b7362ca0a58b5f0750a9ca8ff590ef1a80e
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.