A command for checking shell-script and PowerShell code for syntax errors and common quality problems.

Use it before committing changes, after refactoring, or during code review; it also runs the project's tests.

It catches issues such as unquoted variables, missing error handling, undefined variables, and incorrect PowerShell parameters before they cause failures.

How mylee04/code-notify configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to mylee04/code-notify. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/mylee04/code-notify/main/.claude/commands/validate.md

Clone the repo

git clone --depth 1 https://github.com/mylee04/code-notify

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/mylee04/code-notify/validate/github.svg)](https://agentmods.dev/commands/mylee04/code-notify/validate)

Your own site

<a href="https://agentmods.dev/commands/mylee04/code-notify/validate"><img src="https://agentmods.dev/badge/commands/mylee04/code-notify/validate/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/mylee04/code-notify/validate"><img src="https://agentmods.dev/badge/commands/mylee04/code-notify/validate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 7 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 334 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.

Model	Per session	Once invoked
Fable 5.1	$0.00007	$0.00334
Opus 5.5	$0.00003	$0.00134
Sonnet 5.5	$0.00001	$0.00067
Haiku 4.5	$0.00001	$0.00033

Measured 1mo ago against content hash bd1d9564e646, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

validate 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 1mo 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.

.claude/commands/validate.md · 88 lines

What it actually says

Validate Scripts

What This Command Does

Runs shellcheck on all .sh files
Validates PowerShell syntax on .ps1 files
Checks for common issues
Reports findings

When to Use

Before committing changes
After refactoring code
During code review

Process

1. Run Shellcheck

shellcheck bin/code-notify lib/code-notify/**/*.sh

2. Check PowerShell Syntax

# In PowerShell
$null = [System.Management.Automation.Language.Parser]::ParseFile(
    "scripts/install-windows.ps1",
    [ref]$null,
    [ref]$errors
)
if ($errors) { $errors | ForEach-Object { Write-Error $_ } }

3. Run Tests

make test

Common Issues to Check

Shell Scripts

Unquoted variables
Missing local in functions
Using [ ] instead of [[ ]]
Missing error handling
Undefined variables

PowerShell

Missing error handling
Unhandled exceptions
Incorrect parameter types
Missing -ErrorAction

Fix Common Issues

Unquoted Variables

# Before
echo $message

# After
echo "$message"

Missing Local

# Before
my_func() {
    result="value"
}

# After
my_func() {
    local result="value"
}

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.

1mo ago First seen · 88 lines · 7 tokens per session scan A bd1d9564e646

Subscribe to this mod's changes

validate is a command published in the GitHub repository mylee04/code-notify (289 stars, last pushed 1mo ago), licensed MIT. It adds 7 tokens to every session and 334 once invoked, about $0.0000 per session on Opus 5.5. 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.

Debugging Productivity desktop-notifications developer-tools linux macos notifications

code-notify: Command for Claude Code