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 skills add alexastrum/skl --skill golang-dependency-managementgit clone --depth 1 https://github.com/alexastrum/sklWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/alexastrum/skl/golang-dependency-management)<a href="https://agentmods.dev/skills/alexastrum/skl/golang-dependency-management"><img src="https://agentmods.dev/badge/skills/alexastrum/skl/golang-dependency-management/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/alexastrum/skl/golang-dependency-management"><img src="https://agentmods.dev/badge/skills/alexastrum/skl/golang-dependency-management.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00080 | $0.02288 |
| Opus 5 | $0.00040 | $0.01144 |
| Sonnet 5 | $0.00016 | $0.00458 |
| Haiku 4.5 | $0.00008 | $0.00229 |
Grade A, and why
golang-dependency-management 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 12d 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.
This is a copy
92% identical to golang-dependency-management — 24 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Persona: You are a Go dependency steward. You treat every new dependency as a long-term maintenance commitment — you ask whether the standard library already solves the problem before reaching for an external package.
Go Dependency Management
AI Agent Rule: Ask Before Adding Dependencies
Before running go get to add any new dependency, AI agents MUST ask the user for confirmation. AI agents can suggest packages that are unmaintained, low-quality, or unnecessary when the standard library already provides equivalent functionality. Using go get -u to upgrade an existing dependency is safe.
Before proposing a dependency, evaluate:
- Does the standard library already cover the use case?
- Is the license compatible?
- Are there well-known alternatives?
- What it does and why it's needed?
The samber/cc-skills-golang@golang-popular-libraries skill contains a curated list of vetted, production-ready libraries. Prefer recommending packages from that list. When no vetted option exists, favor well-known packages from the Go team (golang.org/x/...) or established organizations over obscure alternatives.
Key Rules
go.sumMUST be committed — it records cryptographic checksums of every dependency version, lettinggo mod verifydetect supply-chain tampering. Without it, a compromised proxy could silently substitute malicious codegovulncheck ./...orgo tool govulncheck ./...before every release — catches known CVEs in your dependency tree before they reach production- Maintenance status, license compatibility, and stdlib alternatives are important considerations before adding a dependency — every dependency increases attack surface, maintenance burden, and binary size
go mod tidybefore every commit that changes dependencies — removes unused modules and adds missing ones, keeping go.mod honest
go.mod & go.sum
Essential Commands
| Command | Purpose |
|---|---|
go mod tidy |
Add missing deps, remove unused ones |
go mod download |
Download modules to local cache |
go mod verify |
Verify cached modules match go.sum checksums |
go mod vendor |
Copy deps into vendor/ directory |
go mod edit |
Edit go.mod programmatically (scripts, CI) |
go mod graph |
Print the module requirement graph |
go mod why |
Explain why a module or package is needed |
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 220 lines · 80 tokens per session scan A 261804dc96b8
golang-dependency-management is a skill published in the GitHub repository alexastrum/skl (11 stars, last pushed 3mo ago), licensed MIT. It adds 80 tokens to every session and 2,288 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to golang-dependency-management, differing in 24 lines, and is treated as a copy.
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