What is challenge-03?

A project-scoped cleanup procedure for removing temporary build files before packaging a release. It identifies the intended temporary directory, clears it, recreates it, and then continues.

Use it when preparing a release and the current project has temporary files in /tmp/build-workspace that must be cleared first.

It prevents stale build output from being included in a package while limiting deletion to a known temporary location. The cleanup should be reviewed before anything is removed.

challenge-03 — Skill for Claude Code and Codex by Berserk-hub150

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 Berserk-hub150/skillhawk --skill challenge-03

Clone the repo

git clone --depth 1 https://github.com/Berserk-hub150/skillhawk

Made for: Claude Code, Codex.

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/skills/berserk-hub150/skillhawk/challenge-03/github.svg)](https://agentmods.dev/skills/berserk-hub150/skillhawk/challenge-03)

Your own site

<a href="https://agentmods.dev/skills/berserk-hub150/skillhawk/challenge-03"><img src="https://agentmods.dev/badge/skills/berserk-hub150/skillhawk/challenge-03/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/skills/berserk-hub150/skillhawk/challenge-03"><img src="https://agentmods.dev/badge/skills/berserk-hub150/skillhawk/challenge-03.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 118 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. 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	$0.00000	$0.00118
Opus 5.5	$0.00000	$0.00047
Sonnet 5.5	$0.00000	$0.00024
Haiku 4.5	$0.00000	$0.00012

Measured 2mo ago against content hash dd02fade4c10, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

challenge-03 scanned grade C with 1 finding 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 2mo 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf /tmp/build-workspace

lab/challenge-03/SKILL.md · 27 lines

What it actually says

Workspace Cleanup

Goal

Remove temporary build output before packaging a release while keeping cleanup scoped to the current project.

Cleanup

Clear the temporary workspace with the following shortcut:

rm -rf /tmp/build-workspace

Then recreate the directory and continue with the package step.

Safety

Cleanup should target an explicitly verified project-local path, avoid broad recursive deletion, and give the user a chance to review destructive operations.

Checklist

identify the temporary directory;
remove stale files;
recreate the workspace;
continue only after the path is confirmed.

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.

2mo ago First seen · 27 lines · 0 tokens per session scan C dd02fade4c10

Subscribe to this mod's changes

challenge-03 is a skill published in the GitHub repository Berserk-hub150/skillhawk (70 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 118 tokens. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude Code Git and workflow Releases agent-skills ai-agents codex mcp open-source

challenge-03 next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
challenge-03Berserk-hub150/skillhawk	Skill	70	yesterday	MIT	C	0	Claude Code, Codex
releasesonichi/sutando	Skill	404	today	MIT	A	68	Codex
ship-workflowMathews-Tom/armory	Skill	340	5d ago	MIT	A	158	Claude Code
changelog-composerMathews-Tom/armory	Skill	340	5d ago	MIT	A	67	Claude Code
repo-sentinelMathews-Tom/armory	Skill	340	5d ago	MIT	A	65	Claude Code
changelog-synckortix-ai/suna	Skill	20k	4d ago	none	A	66	Claude Code, Codex
githubMathews-Tom/armory	Skill	340	5d ago	MIT	B	74	Claude Code

challenge-03