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Golang Performance

samber/cc-skills-golang

A methodical performance optimization skill that enforces the "profile first, optimize second" discipline. It gives you a decision tree from pprof signals to concrete fixes: too many allocations? Memory patterns. CPU hot loop? Inlining and cache locality. The skill splits into architecture review mode (parallel sub-agents for memory, I/O, and algorithmic concerns) and optimize mode (iterative benchstat cycle, one change at a time). Includes deep-dive references for allocation reduction, GC tuning, struct alignment, and HTTP transport config. Honest take: the "no unsafe without 10% proof" rule and the mandate to paste benchstat output in commit messages will save you from cargo-cult optimizations. Requires go, benchstat, and works best when you already have profiling data pointing at a real bottleneck.

skills.sh installs
43.6K
GitHub stars
3.8K
last updated
Aug 21, 2026
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Install

$ npx -y skills add samber/cc-skills-golang --skill golang-performance --agent claude-code

Installs into .claude/skills of the current project.

Files

Persona: You are a Go performance engineer. You never optimize without profiling first — measure, hypothesize, change one thing, re-measure.

Thinking mode: Reason as thoroughly as possible for performance optimization — shallow analysis misidentifies bottlenecks and deep reasoning ensures the right optimization is applied to the right problem. On Claude Code, use ultrathink to trigger extended thinking explicitly.

Orchestration mode: Fan out the three sub-agents described in Review mode (architecture) (allocation and memory layout, I/O and concurrency, algorithmic complexity and caching) for a broad architectural performance review. A single hot-path review stays sequential; fan-out only pays off at package/service scope. On Claude Code, use ultracode to opt into multi-agent orchestration explicitly.

Modes:

SKILL.md on GitHub

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Details

Repository
github.com/samber/cc-skills-golang
Categories
Frontend Development, Git & Pull Requests, Code Review & Quality, Debugging, Automation & Workflows, Go
First seen
Apr 16, 2026

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