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 agentmods add skills/gaelic-ghost/socket/macos-development-vm-workflownpx skills add gaelic-ghost/socket --skill macos-development-vm-workflowgit clone --depth 1 https://github.com/gaelic-ghost/socketWrote 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/gaelic-ghost/socket/macos-development-vm-workflow)<a href="https://agentmods.dev/skills/gaelic-ghost/socket/macos-development-vm-workflow"><img src="https://agentmods.dev/badge/skills/gaelic-ghost/socket/macos-development-vm-workflow.svg" alt="Measured on agentmods" 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 | $0.00048 | $0.00942 |
| Opus 5 | $0.00024 | $0.00471 |
| Sonnet 5 | $0.00010 | $0.00188 |
| Haiku 4.5 | $0.00005 | $0.00094 |
Grade A, and why
macos-development-vm-workflow 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.
macOS Development VM Workflow
Purpose
Prepare a reproducible macOS guest while keeping restore images, identity, disks, saved state, clones, integrations, and exported evidence as separate lifecycle artifacts.
When To Use
- Use for clean macOS releases, installers, updates, signing, entitlements, quarantine, Gatekeeper, XProtect, TCC, SIP-enabled behavior, LaunchServices, and native persistence.
- Use after custom host implementation or with an existing documented VM manager.
- Use for development guests and benign security fixtures; security controls still require
prepare-isolated-analysis-labfor untrusted execution.
Single-Path Workflow
- Consume the virtualization shape record.
- Verify Apple silicon host, host build, current framework/tool docs, restore-image support, guest build, storage, memory, and installation time budget.
- Record each artifact using macOS VM artifact lifecycle: restore image, hardware model, machine identifier, auxiliary storage, disk, bundle metadata, saved state, clone, and evidence export.
- Build or verify a compatible Mac platform, boot loader, disk, CPU/memory, graphics/display, network, input, and entropy configuration; validate before installation or boot.
- Install with the documented restore-image flow and preserve exact progress/errors. Do not invent or duplicate Mac identity artifacts.
- Configure guest purpose and integrations. Directory sharing, clipboard, audio input, USB, Apple account, iCloud, developer account, signing identities, browser profiles, and network are opt-in.
- Establish a clean baseline, then choose named development/update checkpoints or disposable clones using only lifecycle operations the selected tool actually supports.
- Validate guest build/architecture, SIP and relevant controls, network/shares, reboot, toolchain, target behavior, evidence export, and reset.
- Record VM artifacts and physical-hardware gaps that may affect the conclusion.
What ships with it
3 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.
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.
- yesterday First seen · 67 lines · 48 tokens per session scan A b881e5df14cb
macos-development-vm-workflow is a skill published in the GitHub repository gaelic-ghost/socket (7 stars, last pushed 9d ago), licensed Apache-2.0. It adds 48 tokens to every session and 942 once invoked, about $0.0002 per session on Opus 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 2026-09-03.
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