fix-go

fix-go is a skill for Claude Code from quay/ai-helpers. It costs 25 tokens per session (338 once invoked), scanned A, original, MIT.

A Go dependency update procedure for fixing a known security vulnerability, identified by a CVE number. It updates the package, tidies the module files, and checks the result with govulncheck, a Go vulnerability scanner.

In plain words
What is it for?
It is for updating a Go module's go.mod and go.sum files and verifying a specific dependency CVE fix.
Why use it?
It gives a repeatable way to apply the fixed dependency version and check whether the named vulnerability is still reported.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument.

Part of the cve plugin — 4 skills shipped together

Good fit It is for updating a Go module's go.mod and go.sum files and verifying a specific dependency CVE fix.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/quay/ai-helpers/fix-go
Install

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.

Any agent
npx skills add quay/ai-helpers --skill fix-go
Clone the repo
git clone --depth 1 https://github.com/quay/ai-helpers

Made for: Claude Code.

Or install cve, the plugin that ships this one along with the rest of its 4 skills.

Wrote 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.

agentmods badge for fix-go

README.md
[![agentmods](https://agentmods.dev/badge/skills/quay/ai-helpers/fix-go.svg)](https://agentmods.dev/skills/quay/ai-helpers/fix-go)
Your own site
<a href="https://agentmods.dev/skills/quay/ai-helpers/fix-go"><img src="https://agentmods.dev/badge/skills/quay/ai-helpers/fix-go.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 338 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.00338
Opus 5 $0.00013 $0.00169
Sonnet 5 $0.00005 $0.00068
Haiku 4.5 $0.00003 $0.00034

Measured 3d ago against content hash 57e982ee6808, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

fix-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 3d 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.

plugins/cve/skills/fix-go/SKILL.md · 59 lines

What it actually says

Fix Go Dependency CVE

Inputs

Input Required
PACKAGE yes
FIXED_VERSION yes
CVE_ID yes
GO_MOD_PATH default .
REPO_DIR yes (cwd)

Steps

1. Update dependency

cd "${GO_MOD_PATH}"
go get "${PACKAGE}@v${FIXED_VERSION}"
go mod tidy

2. Verify with govulncheck

GO_VERSION=$(grep '^go ' go.mod | awk '{print $2}')
if [[ "$GO_VERSION" =~ ^[0-9]+\.[0-9]+$ ]]; then
  GO_VERSION="${GO_VERSION}.0"
fi

SCAN_OUTPUT=$(GOTOOLCHAIN="go${GO_VERSION}" govulncheck -show verbose ./... 2>&1)

if echo "$SCAN_OUTPUT" | grep -q "$CVE_ID"; then
  echo "WARNING: CVE still detected after fix"
else
  echo "CVE resolved"
fi

Output

Modified go.mod and go.sum in ${GO_MOD_PATH}.

Changes

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.

  1. 3d ago First seen · 59 lines · 25 tokens per session scan A 57e982ee6808

Subscribe to this mod's changes

fix-go is a skill published in the GitHub repository quay/ai-helpers (3 stars, last pushed 20d ago), licensed MIT. It adds 25 tokens to every session and 338 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 2026-09-04.

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