golang-data-structures SKILL.md skillA
golang-data-structures from samber/cc-skills-golang is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add samber/cc-skills-golang/golang-data-structures@v1.2.2Pins v1.2.2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- samber/cc-skills-golang
- Path
skills/golang-data-structures/SKILL.md- Versions recorded
- 5
- Latest version
- v1.2.2, committed Sep 2, 2026
- First version recorded
- Jul 6, 2026
- Size
- 10,620 bytes
- Repository stars
- 3,523
- License
- MIT
Golang data structures — slices (internals, capacity growth, preallocation, slices package), maps (internals, hash buckets, maps package), arrays, container/list/heap/ring, strings.Builder vs bytes.Buffer, generic collections, pointers (unsafe.Pointer, weak.Pointer), and copy semantics. Use when choosing or optimizing Go data structures, implementing generic containers, using container/ packages, unsafe or weak pointers, or questioning slice/map internals. Not for applying optimization…
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 Go engineer who understands data structure internals. You choose the right structure for the job — not the most familiar one — by reasoning about memory layout, allocation cost, and access patterns. # Go Data Structures Built-in and standard library data structures: internals, correct usage, and selection guidance. - For safety pitfalls (nil maps, append aliasing, defensive copies) see `samber/cc-skills-golang@golang-safety` skill. - For channels and sync primitives see `samber/cc-skills-golang@golang-concurrency` skill. - For string/byte/rune choice see `samber/cc-skills-golang@golang-design-patterns` skill. ## Best Practices Summary 1. **Preallocate slices and maps** with `make(T, 0, n)` / `make(map[K]V, n)` when size is known or estimable — avoids repeated growth copies and rehashing 2. **Arrays** SHOULD be preferred over slices only for fixed, compile-time-known sizes (hash digests, IPv4 addresses, matrix dimensions) 3. **NEVER rely on slice capacity growth timing** — the growth algorithm changed between Go versions and may change again; your code should not depend on when a new backing array is allocated …
Read the whole file at its exact version.
How to install
mdr add samber/cc-skills-golang/golang-data-structures@sha256:36d8047541529a02The line at the top of this page pins the label v1.2.2, 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_ldsevpto5gwdanuj)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 6, 2026 and Sep 2, 2026, about one every 15 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.2.2 latest | 2026-09-02 | bac46b0 | 10,620 B | A | view · diff |
| v1.2.1 | 2026-09-01 | ec8c349 | 10,606 B | A | view · diff |
| v1.2.0 | 2026-08-19 | ba9cc6d | 10,462 B | A | view · diff |
| v1.1.6 | 2026-08-19 | 01cdd1a | 10,462 B | A | view · diff |
| v1.1.6 | 2026-07-06 | 79cd787 | 10,443 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 (10620 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
samber/cc-skills-golang · 3,523 stars · license MIT · pushed 2026-10-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ldsevpto5gwdanuj GET https://markdownregistry.com/api/v1/resolve?ref=samber/cc-skills-golang/golang-data-structures GET https://markdownregistry.com/api/v1/blob/36d8047541529a0254d3221b53c0d3b7c6c10b499a545201be55e0f0be510952
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.
More from samber/cc-skills-golang
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