bad-examples-block

bad-examples-block is a command for Claude Code from appboypov/pew-pew-plaza-packs. It costs 0 tokens per session (216 once invoked), scanned A, original, MIT.

A documentation template for showing incorrect implementations and explaining why they should be avoided. It can include bad code and a better alternative.

In plain words
What is it for?
Use it in coding guides, reviews, training material, or project specifications that need concrete examples of failure.
Why use it?
It makes common mistakes easier to recognize and prevents readers from copying approaches that cause problems.

Command for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it in coding guides, reviews, training material, or project specifications that need concrete examples of failure.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/appboypov/pew-pew-plaza-packs/bad-examples-block
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.

Clone the repo
git clone --depth 1 https://github.com/appboypov/pew-pew-plaza-packs

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.

agentmods badge for bad-examples-block

README.md
[![agentmods](https://agentmods.dev/badge/commands/appboypov/pew-pew-plaza-packs/bad-examples-block/github.svg)](https://agentmods.dev/commands/appboypov/pew-pew-plaza-packs/bad-examples-block)
Your own site
<a href="https://agentmods.dev/commands/appboypov/pew-pew-plaza-packs/bad-examples-block"><img src="https://agentmods.dev/badge/commands/appboypov/pew-pew-plaza-packs/bad-examples-block/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.

agentmods 80×15 button for bad-examples-block

Your own site · 80×15
<a href="https://agentmods.dev/commands/appboypov/pew-pew-plaza-packs/bad-examples-block"><img src="https://agentmods.dev/badge/commands/appboypov/pew-pew-plaza-packs/bad-examples-block.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 216 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 $0.00000 $0.00216
Opus 5 $0.00000 $0.00108
Sonnet 5 $0.00000 $0.00043
Haiku 4.5 $0.00000 $0.00022

Measured 7d ago against content hash 6c3c4347442e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

bad-examples-block 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 7d 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/add/bad-examples-block.md · 40 lines

What it actually says

Block Command

When this command is used, use the following block. Acknowledge your understanding and then await the user's request.


## ❌ Bad Examples
> 💡 *Examples of incorrect implementation, common mistakes, and approaches that should be avoided.*

[Provide specific examples of what not to do]

### Bad Example 1: [Title]
[Description of incorrect approach and why it's problematic]
```
<bad-example>
[Code or implementation to avoid]
</bad-example>
```
**Why this is bad**: [Explanation of negative consequences]

### Bad Example 2: [Title]
[Another mistake with explanation]
```
<bad-example>
[Code or implementation to avoid]
</bad-example>
```
**Better alternative**: [Suggest the correct approach]

### Bad Example 3: [Title]
[Poor practice description]
```
<bad-example>
[Code or implementation to avoid]
</bad-example>
```
**Instead use**: [Reference to good example or better pattern]
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. 7d ago First seen · 40 lines · 0 tokens per session scan A 6c3c4347442e

Subscribe to this mod's changes

bad-examples-block is a command published in the GitHub repository appboypov/pew-pew-plaza-packs (85 stars, last pushed 8mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 216 tokens. 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 2026-09-03.