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 JosiahSiegel/claude-plugin-marketplace --skill shellcheck-cicd-2025git clone --depth 1 https://github.com/JosiahSiegel/claude-plugin-marketplaceWrote 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/josiahsiegel/claude-plugin-marketplace/shellcheck-cicd-2025)<a href="https://agentmods.dev/skills/josiahsiegel/claude-plugin-marketplace/shellcheck-cicd-2025"><img src="https://agentmods.dev/badge/skills/josiahsiegel/claude-plugin-marketplace/shellcheck-cicd-2025/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/josiahsiegel/claude-plugin-marketplace/shellcheck-cicd-2025"><img src="https://agentmods.dev/badge/skills/josiahsiegel/claude-plugin-marketplace/shellcheck-cicd-2025.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 | $0.00179 | $0.02761 |
| Opus 5 | $0.00089 | $0.01380 |
| Sonnet 5 | $0.00036 | $0.00552 |
| Haiku 4.5 | $0.00018 | $0.00276 |
Grade B, and why
shellcheck-cicd-2025 scanned grade B with 2 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo cp shellcheck-stable/shellcheck /usr/local/bin/ Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
wget https://github.com/koalaman/shellcheck/releases/latest/download/shellcheck-stable.linux.x86_64.tar.xz How it starts
The opening of the file, as written. The whole thing — 445 lines — stays where its author put it; the contents beside it link to each section on GitHub.
🚨 CRITICAL GUIDELINES
Windows File Path Requirements
MANDATORY: Always Use Backslashes on Windows for File Paths
When using Edit or Write tools on Windows, you MUST use backslashes (\) in file paths, NOT forward slashes (/).
Examples:
- ❌ WRONG:
D:/repos/project/file.tsx - ✅ CORRECT:
D:\repos\project\file.tsx
This applies to:
- Edit tool file_path parameter
- Write tool file_path parameter
- All file operations on Windows systems
Documentation Guidelines
NEVER create new documentation files unless explicitly requested by the user.
- Priority: Update existing README.md files rather than creating new documentation
- Repository cleanliness: Keep repository root clean - only README.md unless user requests otherwise
- Style: Documentation should be concise, direct, and professional - avoid AI-generated tone
- User preference: Only create additional .md files when user specifically asks for documentation
ShellCheck CI/CD Integration (2025)
ShellCheck: Non-Negotiable in 2025
ShellCheck is now considered mandatory in modern bash workflows (2025 best practices):
Latest Version: v0.11.0 (August 2025)
What's New:
- Full Bash 5.3 support (
${| cmd; }andsource -p) - New warnings: SC2327/SC2328 (capture group issues)
- POSIX.1-2024 compliance: SC3013 removed (-ot/-nt/-ef now POSIX standard)
- Enhanced static analysis capabilities
- Improved performance and accuracy
Why Mandatory?
- Catches subtle bugs before production
- Prevents common security vulnerabilities
- Enforces consistent code quality
- Required by most DevOps teams
- Standard in enterprise environments
- Supports latest POSIX.1-2024 standard
Installation
# Ubuntu/Debian
apt-get install shellcheck
# macOS
brew install shellcheck
# Alpine (Docker)
apk add shellcheck
# Windows (WSL/Git Bash)
choco install shellcheck
# Or download binary
wget https://github.com/koalaman/shellcheck/releases/latest/download/shellcheck-stable.linux.x86_64.tar.xz
tar -xf shellcheck-stable.linux.x86_64.tar.xz
sudo cp shellcheck-stable/shellcheck /usr/local/bin/
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 · 445 lines · 179 tokens per session scan B 7276ab3402c7
shellcheck-cicd-2025 is a skill published in the GitHub repository JosiahSiegel/claude-plugin-marketplace (54 stars, last pushed 2mo ago), licensed MIT. It adds 179 tokens to every session and 2,761 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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