go-ops SKILL.md skillA
go-ops from 0xdarkmatter/claude-mods is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add 0xdarkmatter/claude-mods/go-ops@git:20260610.e29f196Pins git:20260610.e29f196 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- 0xdarkmatter/claude-mods
- Path
skills/go-ops/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260610.e29f196, committed Jun 10, 2026
- First version recorded
- Mar 8, 2026
- Size
- 9,617 bytes
- Repository stars
- 68
- License
- MIT
Go development patterns, concurrency, error handling, testing, and project structure. Use for: golang, go, goroutine, channel, context, errgroup, go test, go mod, go build, interface, generics, table-driven tests, worker pool, sync.Mutex, sync.WaitGroup, pprof, go vet, golangci-lint, go workspace, functional options, middleware, http handler.
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
# Go Operations
Comprehensive Go skill covering idiomatic patterns, concurrency, and production practices.
## Module Quick Start
```bash
# New module
go mod init github.com/user/project
# Add dependency
go get github.com/lib/pq@latest
# Tidy (remove unused, add missing)
go mod tidy
# Vendor dependencies
go mod vendor
# Workspace (multi-module)
go work init ./api ./shared
go work use ./cli
```
## Error Handling Decision Tree
```
What kind of error?
│
├─ Known, expected condition (e.g. "not found")
│ └─ Sentinel error: var ErrNotFound = errors.New("not found")
│ └─ Caller checks: errors.Is(err, ErrNotFound)
│
├─ Need to carry structured data (status code, field name)
│ └─ Custom error type: type ValidationError struct { Field, Message string }
│ └─ Implement Error() string
│ └─ Caller checks: errors.As(err, &validErr)
│
├─ Adding context to an existing error
│ └─ Wrap: fmt.Errorf("load config: %w", err)
│ └─ Preserves original for Is/As checks
│
├─ Truly unrecoverable (corrupted state, programmer bug)
│ └─ panic("invariant violated: ...")
│ └─ Almost never in library code
│
└─ Multiple errors from concurrent work
…Read the whole file at its exact version.
How to install
mdr add 0xdarkmatter/claude-mods/go-ops@sha256:8f3d41fab31d473cThe line at the top of this page pins the label git:20260610.e29f196, 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_4qay7wznqa7stqgl)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 8, 2026 and Jun 10, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260610.e29f196 latest | 2026-06-10 | e29f196 | 9,617 B | A | view · diff |
| git:20260410.d221136 | 2026-04-10 | d221136 | 9,494 B | A | view · diff |
| git:20260308.ca165aa | 2026-03-08 | ca165aa | 9,449 B | A | view |
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 (9617 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
0xdarkmatter/claude-mods · 68 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4qay7wznqa7stqgl GET https://markdownregistry.com/api/v1/resolve?ref=0xdarkmatter/claude-mods/go-ops GET https://markdownregistry.com/api/v1/blob/8f3d41fab31d473c2dc014b2607b7c4f065b3f9edfa857c80dac3cc40fca97c3
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.