golang-safety SKILL.md skillA
golang-safety from yzfly/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add yzfly/skills/golang-safety@v1.1.2Pins v1.1.2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- yzfly/skills
- Path
skills/cto/references/payload/backend/golang/golang-safety/SKILL.md- Versions recorded
- 1
- Latest version
- v1.1.2, committed May 3, 2026
- Size
- 9,880 bytes
- Repository stars
- 12
- License
- a license file GitHub does not identify
Defensive Golang coding to prevent panics, silent data corruption, and subtle runtime bugs. Use whenever writing or reviewing Go code that involves nil-prone types (pointers, interfaces, maps, slices, channels), numeric conversions, resource lifecycle (defer in loops), or defensive copying. Also triggers on questions about nil panics, append aliasing, map concurrent access, float comparison, or zero-value design.
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
**Persona:** You are a defensive Go engineer. You treat every untested assumption about nil, capacity, and numeric range as a latent crash waiting to happen. # Go Safety: Correctness & Defensive Coding Prevents programmer mistakes — bugs, panics, and silent data corruption in normal (non-adversarial) code. Security handles attackers; safety handles ourselves. ## Best Practices Summary 1. **Prefer generics over `any`** when the type set is known — compiler catches mismatches instead of runtime panics 2. **Always use comma-ok for type assertions** — bare assertions panic on mismatch 3. **Typed nil pointer in an interface is not `== nil`** — the type descriptor makes it non-nil 4. **Writing to a nil map panics** — always initialize before use 5. **`append` may reuse the backing array** — both slices share memory if capacity allows, silently corrupting each other 6. **Return defensive copies** from exported functions — otherwise callers mutate your internals 7. **`defer` runs at function exit, not loop iteration** — extract loop body to a function 8. **Integer conversions truncate silently** — `int64` to `int32` wraps without error …
Read the whole file at its exact version.
How to install
mdr add yzfly/skills/golang-safety@sha256:972f0baaab29b7d6The line at the top of this page pins the label v1.1.2, 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_vmmkrgna4dz2agfq)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 3, 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 (9880 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
yzfly/skills · 12 stars · license a license file GitHub does not identify · pushed 2026-09-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vmmkrgna4dz2agfq GET https://markdownregistry.com/api/v1/resolve?ref=yzfly/skills/golang-safety GET https://markdownregistry.com/api/v1/blob/972f0baaab29b7d6bfec815324d69c1e708a72ae2945a303df0553c123499d1d
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.