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nanoclawbster: Skill for Claude Code

.claude/skills/convert-to-apple-container/SKILL.md

convert-to-apple-container is a skill for Claude Code from sskarz/nanoclawbster. It costs 68 tokens per session (1,220 once invoked), scanned C, a copy of convert-to-apple-container, MIT.

A procedure for changing NanoClawbster from Docker to Apple Container, Apple's container runtime for macOS. It updates runtime commands, mount syntax, startup checks, and orphan detection while keeping the Dockerfile.

In plain words
What is it for?
Use it when setting up NanoClawbster on macOS and replacing Docker with Apple Container. It also checks whether Apple Container is installed and guides verification.
Why use it?
It adapts the project to macOS-native container isolation without changing the container runner or its security checks.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

This is sskarz/nanoclawbster's own configuration. It tells Claude Code how to work on nanoclawbster itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything nanoclawbster configures →

not rated 2repo 1mo ago C scan 68 tokens copy · 92% MIT
View source ↗ sskarz/nanoclawbster nanoclaw.dev
Reuse

Borrowing it

Nothing to install: this file belongs to sskarz/nanoclawbster. 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/sskarz/nanoclawbster/main/.claude/skills/convert-to-apple-container/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/sskarz/nanoclawbster

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 convert-to-apple-container

README.md
[![agentmods](https://agentmods.dev/badge/skills/sskarz/nanoclawbster/convert-to-apple-container/github.svg)](https://agentmods.dev/skills/sskarz/nanoclawbster/convert-to-apple-container)
Your own site
<a href="https://agentmods.dev/skills/sskarz/nanoclawbster/convert-to-apple-container"><img src="https://agentmods.dev/badge/skills/sskarz/nanoclawbster/convert-to-apple-container/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 convert-to-apple-container

Your own site · 80×15
<a href="https://agentmods.dev/skills/sskarz/nanoclawbster/convert-to-apple-container"><img src="https://agentmods.dev/badge/skills/sskarz/nanoclawbster/convert-to-apple-container.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,220 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 92% copy Near-identical to another mod 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 $0.00068 $0.01220
Opus 5 $0.00034 $0.00610
Sonnet 5 $0.00014 $0.00244
Haiku 4.5 $0.00007 $0.00122

Measured 11d ago against content hash 99decc3883d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade C, and why

convert-to-apple-container 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 11d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (modify/container/build.sh, modify/src/container-runtime.test.ts, modify/src/container-runtime.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/test-ro
Origin

This is a copy

92% identical to convert-to-apple-container — 16 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/convert-to-apple-container/SKILL.md · 176 lines

How it starts

The opening of the file, as written. The whole thing — 176 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Convert to Apple Container

This skill switches NanoClawbster's container runtime from Docker to Apple Container (macOS-only). It uses the skills engine for deterministic code changes, then walks through verification.

What this changes:

  • Container runtime binary: docker → container
  • Mount syntax: -v path:path:ro → --mount type=bind,source=...,target=...,readonly
  • Startup check: docker info → container system status (with auto-start)
  • Orphan detection: docker ps --filter → container ls --format json
  • Build script default: docker → container

What stays the same:

  • Dockerfile (shared by both runtimes)
  • Container runner code (src/container-runner.ts)
  • Mount security/allowlist validation
  • All other functionality

Prerequisites

Verify Apple Container is installed:

container --version && echo "Apple Container ready" || echo "Install Apple Container first"

If not installed:

Apple Container requires macOS. It does not work on Linux.

Phase 1: Pre-flight

Check if already applied

Read .nanoclawbster/state.yaml. If convert-to-apple-container is in applied_skills, skip to Phase 3 (Verify). The code changes are already in place.

Check current runtime

grep "CONTAINER_RUNTIME_BIN" src/container-runtime.ts

If it already shows 'container', the runtime is already Apple Container. Skip to Phase 3.

Phase 2: Apply Code Changes

Run the skills engine to apply this skill's code package. The package files are in this directory alongside this SKILL.md.

Initialize skills system (if needed)

If .nanoclawbster/ directory doesn't exist yet:

npx tsx scripts/apply-skill.ts --init

Or call initSkillsSystem() from skills-engine/migrate.ts.

Apply the skill

npx tsx scripts/apply-skill.ts .claude/skills/convert-to-apple-container

This deterministically:

  • Replaces src/container-runtime.ts with the Apple Container implementation
  • Replaces src/container-runtime.test.ts with Apple Container-specific tests
  • Updates container/build.sh to default to container runtime
  • Records the application in .nanoclawbster/state.yaml

Read the full file on GitHub · 176 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 176 lines · 68 tokens per session scan C 99decc3883d2

Subscribe to this mod's changes

convert-to-apple-container is a skill published in the GitHub repository sskarz/nanoclawbster (2 stars, last pushed 1mo ago), licensed MIT. It adds 68 tokens to every session and 1,220 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). It is 92% identical to convert-to-apple-container, differing in 16 lines, and is treated as a copy.

ContainersDevOps and cloudai-agentanthropicclaudediscorddockermcp
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