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 perasyudha/Nyxora --skill github-authgit clone --depth 1 https://github.com/perasyudha/NyxoraWrote 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/perasyudha/nyxora/github-auth)<a href="https://agentmods.dev/skills/perasyudha/nyxora/github-auth"><img src="https://agentmods.dev/badge/skills/perasyudha/nyxora/github-auth/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/perasyudha/nyxora/github-auth"><img src="https://agentmods.dev/badge/skills/perasyudha/nyxora/github-auth.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 | $0.00018 | $0.01977 |
| Opus 5.5 | $0.00007 | $0.00791 |
| Sonnet 5.5 | $0.00004 | $0.00395 |
| Haiku 4.5 | $0.00002 | $0.00198 |
Grade A, and why
github-auth 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 1mo 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
83% identical to github-auth — 24 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 — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitHub Authentication Setup
This skill sets up authentication so the agent can work with GitHub repositories, PRs, issues, and CI. It covers two paths:
git(always available) — uses HTTPS personal access tokens or SSH keysghCLI (if installed) — richer GitHub API access with a simpler auth flow
Detection Flow
When a user asks you to work with GitHub, run this check first:
# Check what's available
git --version
gh --version 2>/dev/null || echo "gh not installed"
# Check if already authenticated
gh auth status 2>/dev/null || echo "gh not authenticated"
git config --global credential.helper 2>/dev/null || echo "no git credential helper"
Decision tree:
- If
gh auth statusshows authenticated → you're good, useghfor everything - If
ghis installed but not authenticated → use "gh auth" method below - If
ghis not installed → use "git-only" method below (no sudo needed)
Method 1: Git-Only Authentication (No gh, No sudo)
This works on any machine with git installed. No root access needed.
Option A: HTTPS with Personal Access Token (Recommended)
This is the most portable method — works everywhere, no SSH config needed.
Step 1: Create a personal access token
Tell the user to go to: https://github.com/settings/tokens
- Click "Generate new token (classic)"
- Give it a name like "nyxora-agent"
- Select scopes:
repo(full repository access — read, write, push, PRs)workflow(trigger and manage GitHub Actions)read:org(if working with organization repos)
- Set expiration (90 days is a good default)
- Copy the token — it won't be shown again
Step 2: Configure git to store the token
# Set up the credential helper to cache credentials
# "store" saves to ~/.git-credentials in plaintext (simple, persistent)
git config --global credential.helper store
# Now do a test operation that triggers auth — git will prompt for credentials
# Username: <their-github-username>
# Password: <paste the personal access token, NOT their GitHub password>
git ls-remote https://github.com/<their-username>/<any-repo>.git
What ships with it
1 file 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.
- 1mo ago First seen · 248 lines · 18 tokens per session scan F 3f67c557227f
github-auth is a skill published in the GitHub repository perasyudha/Nyxora (5 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 1,977 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 83% identical to github-auth, differing in 24 lines, and is treated as a copy.
Other skills, from other repositories
git-wrapup
Land working-tree changes as logical commits — the work grouped by concern, topped by a release commit (version bump, changelog, regenerated artifacts). The work commits land first, then the version bump, verification, and the release commit on top. Stops at "committed locally on main" — or, when the project releases…
release-and-publish
Ship a release end-to-end across every registry the project targets (npm, MCP Registry, GitHub Releases for .mcpb bundles, GHCR). Runs the final verification gate, fast-forwards main when the release rode a release PR, creates the annotated tag on the commit main now points at, pushes commits and tags, then publishes…
release-pr-review
Review pass on an open release PR (release/ → main) — the step between git-wrapup and release-and-publish when a project releases in gated release PR mode. Reads the PR's commit range through the code-simplifier lens plus a correctness review, verifies whatever an automated reviewer left on the PR, lands fixes as…
git-workflow
Git workflow patterns including branching strategies, commit conventions, merge vs rebase, conflict resolution, and collaborative development best practices for teams of all sizes.
run-work
Execute a work unit end-to-end: sequence tasks by dependency, implement, test between tasks, commit, and track progress. Use to deliver a complete feature in one session. Invoked as /agiflow:run-work . Uses getworkunit, listtasks, updatetask, getworkunitprogress.
writing-modpack-changelog
Use when cutting a modpack release. Creates /docs/release-changelog.md if absent; appends a new version section with grouped changes. Triggers - 'cut a release', 'release notes', 'changelog', 'v1.2.3 changes', 'what changed since last version'.