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 skills add elbruno/ElBruno.MempalaceNet --skill gh-auth-isolationgit clone --depth 1 https://github.com/elbruno/ElBruno.MempalaceNetWrote 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/elbruno/elbruno.mempalacenet/gh-auth-isolation)<a href="https://agentmods.dev/skills/elbruno/elbruno.mempalacenet/gh-auth-isolation"><img src="https://agentmods.dev/badge/skills/elbruno/elbruno.mempalacenet/gh-auth-isolation/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.
<a href="https://agentmods.dev/skills/elbruno/elbruno.mempalacenet/gh-auth-isolation"><img src="https://agentmods.dev/badge/skills/elbruno/elbruno.mempalacenet/gh-auth-isolation.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00020 | $0.01537 |
| Opus 5 | $0.00010 | $0.00768 |
| Sonnet 5 | $0.00004 | $0.00307 |
| Haiku 4.5 | $0.00002 | $0.00154 |
Grade A, and why
gh-auth-isolation 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 11d 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.
This is a copy
100% identical to gh-auth-isolation — 366 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.
How it starts
The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Context
Many developers use GitHub through an Enterprise Managed User (EMU) account at work while maintaining a personal GitHub account for open-source contributions. AI agents spawned by Squad inherit the shell's default gh authentication — which is usually the EMU account. This causes failures when agents try to push to personal repos, create PRs on forks, or interact with resources outside the enterprise org.
This skill teaches agents how to detect the active identity, switch contexts safely, and avoid mixing credentials across operations.
Patterns
Detect Current Identity
Before any GitHub operation, check which account is active:
gh auth status
Look for:
Logged in to github.com as USERNAME— the active accountToken scopes: ...— what permissions are available- Multiple accounts will show separate entries
Extract a Specific Account's Token
When you need to operate as a specific user (not the default):
# Get the personal account token (by username)
gh auth token --user personaluser
# Get the EMU account token
gh auth token --user corpalias_enterprise
Use case: Push to a personal fork while the default gh auth is the EMU account.
Push to Personal Repos from EMU Shell
The most common scenario: your shell defaults to the EMU account, but you need to push to a personal GitHub repo.
# 1. Extract the personal token
$token = gh auth token --user personaluser
# 2. Push using token-authenticated HTTPS
git push https://personaluser:[email protected]/personaluser/repo.git branch-name
Why this works: gh auth token --user reads from gh's credential store without switching the active account. The token is used inline for a single operation and never persisted.
Create PRs on Personal Forks
When the default gh context is EMU but you need to create a PR from a personal fork:
# Option 1: Use --repo flag (works if token has access)
gh pr create --repo upstream/repo --head personaluser:branch --title "..." --body "..."
# Option 2: Temporarily set GH_TOKEN for one command
$env:GH_TOKEN = $(gh auth token --user personaluser)
gh pr create --repo upstream/repo --head personaluser:branch --title "..."
Remove-Item Env:\GH_TOKEN
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.
- 11d ago First seen · 184 lines · 20 tokens per session scan A d25581dbcd64
gh-auth-isolation is a skill published in the GitHub repository elbruno/ElBruno.MempalaceNet (11 stars, last pushed 2mo ago), licensed MIT. It adds 20 tokens to every session and 1,537 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to gh-auth-isolation, differing in 366 lines, and is treated as a copy.
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