Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/savant0x/savant-code/coding-gonpx skills add savant0x/savant-code --skill coding-gogit clone --depth 1 https://github.com/savant0x/savant-codeWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00021 | $0.00609 |
| Opus 5 | $0.00010 | $0.00304 |
| Sonnet 5 | $0.00004 | $0.00122 |
| Haiku 4.5 | $0.00002 | $0.00061 |
Grade A, and why
coding-go scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Go Coding Standards
Naming Conventions
| Element | Convention | Example |
|---|---|---|
| Structs | PascalCase (exported), camelCase (unexported) | UserProfile, userProfile |
| Interfaces | PascalCase (er suffix preferred) | Reader, Renderer |
| Functions | PascalCase (exported), camelCase (unexported) | CalculateDistance, calculateDistance |
| Variables | camelCase | playerCount, isValid |
| Constants | PascalCase (exported), camelCase (unexported) | MaxPlayers, maxRetries |
| Packages | lowercase, single word | playermanager, worldgen |
| Files | snake_case | player_manager.go, world_gen.go |
| Receivers | short, 1-2 letter abbreviation | (p *Player), (s *Server) |
Patterns
Error Handling
- Return
erroras the last return value - Use
fmt.Errorfwith%wfor error wrapping - Check errors immediately, never ignore with
_ - Define sentinel errors with
var ErrNotFound = errors.New("not found")
Concurrency
- Prefer channels for communication between goroutines
- Use
sync.Mutexfor protecting shared state - Always use
deferfor unlock/cleanup - Context propagation for cancellation
Imports
- Group: stdlib → external → internal
- One blank line between groups
- Use
goimportsfor automatic formatting
File Structure
cmd/
├── main.go # Entry point
internal/
├── config.go # Configuration
├── errors.go # Error types
├── [module]/
│ ├── models.go # Data structures
│ ├── service.go # Business logic
│ └── service_test.go # Tests
Anti-Patterns to Flag
- Ignoring errors with
_ - Goroutine leaks (no cancellation)
- Global mutable state
-
panic()in library code - Circular imports
- Naked returns in long functions
Quality Overrides
These override the defaults in protocol.config.yaml when Go is the configured language.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 77 lines · 21 tokens per session scan A d7264c0b5da0
coding-go is a skill published in the GitHub repository savant0x/savant-code (11 stars, last pushed 11d ago), licensed Apache-2.0. It adds 21 tokens to every session and 609 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
chat-pet-sprite-creation
Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.
cpu-profile-analysis
Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…
agent-host-chat-contributions
Build and review cross-cutting agent-host chat behavior through lifecycle contributions. Use when adding turn lifecycle side effects, prompt or context injection, restored-history transformation, protocol-action observation, or when reviewing changes that add code to AgentSideEffects or AgentService.
auto-perf-optimize
Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis.