Borrowing it
Nothing to install: this file belongs to greenpau/go-authcrunch. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/greenpau/go-authcrunch/main/.codex/skills/authentication-portal-themes/SKILL.mdgit clone --depth 1 https://github.com/greenpau/go-authcrunchWrote 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/greenpau/go-authcrunch/authentication-portal-themes)<a href="https://agentmods.dev/skills/greenpau/go-authcrunch/authentication-portal-themes"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/authentication-portal-themes/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/greenpau/go-authcrunch/authentication-portal-themes"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/authentication-portal-themes.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 | $0.00069 | $0.01800 |
| Opus 5.5 | $0.00028 | $0.00720 |
| Sonnet 5.5 | $0.00014 | $0.00360 |
| Haiku 4.5 | $0.00007 | $0.00180 |
Grade A, and why
authentication-portal-themes 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Authentication Portal Themes
For an application theme, create deployable files in its theme directory, with the user's branding, working portal flows, and matching configuration. For library UI work, update the built-in templates and their rendering/browser tests. Start from the templates for the AuthCrunch version the application runs. Use an existing custom theme as a design reference, then carry its styling onto those templates. Filesystem overrides do not inherit later upstream changes.
Choose the Customization Surface
Read basic theme branding for the built-in blue palette, shared CSS variables, logo/icon/banner/background replacements, and tested configuration examples. Use it for defaults or CSS-only branding before copying templates.
For sizing, alignment, gaps, corners, and hover/focus changes, read the component contract. For phone-only work, use the phone layout and verify the tablet/desktop boundary. For QR behavior, use the login QR contract; styling must preserve the active login view, entered values, and keyboard focus.
For cross-device request, continuation, approval, and terminal views, read the cross-device presentation contract. It defines the matching-code hierarchy, copy fallback, action layout, and Chrome captures; the ordinary login QR bookmark remains a separate view.
- For colors, typography, spacing, logo, icon, banner, and background, prefer shared CSS variables and existing UI/static-asset settings. Keep the built-in markup when it meets the request.
- For different page structure, additional metadata, or custom favicon URLs, copy and override the affected templates. Unspecified aliases keep their built-in templates. A complete theme should account for every page the application exposes, including session continuation, logout confirmation, and the OIDC consent, form-post continuation, and error views when enabled.
- Keep application themes in the consuming application. Editing
pkg/authn/ui/page_templates/basicchanges the library's default UI and is appropriate only when that is the requested scope.
What ships with it
8 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.
- 9d ago Changed · -1 tokens per session be972ae8c9a6
- 17d ago Changed · +6 lines 489394a838f2
- 28d ago Changed · +8 lines · +2 tokens per session 23acb546f354
- 1mo ago Changed · +2 lines f4163b939259
- 1mo ago Changed · +46 lines · +11 tokens per session dce1dcc6d61d
- 1mo ago First seen · 85 lines · 57 tokens per session scan A 00d765e43d7e
authentication-portal-themes is a skill published in the GitHub repository greenpau/go-authcrunch (60 stars, last pushed 10d ago), licensed Apache-2.0. It adds 69 tokens to every session and 1,800 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-13.
authentication-portal-themes compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| authentication-portal-themesgreenpau/go-authcrunch | Skill | 60 | 10d ago | Apache-2.0 | A | 69 | Codex |
| anti-slop-designsickn33/agentic-awesome-skills | Skill | 49k | yesterday | MIT | A | 34 | Claude Code |
| chakra-ui-builderchakra-ui/chakra-ui | Skill | 41k | yesterday | MIT | A | 214 | Claude Code, Codex |
| visual-ralphYeachan-Heo/oh-my-codex | Skill | 34k | 3d ago | MIT | A | 52 | Codex |
| frontend-ui-dark-tsmicrosoft/skills | Skill | 3.2k | yesterday | MIT | A | 48 | Claude Code |
| open-design-setupcompozy/compozy | Skill | 2.8k | yesterday | MIT | A | 67 | Claude Code, Codex |
| frontend-visual-qadaymade/claude-code-skills | Skill | 1.5k | yesterday | MIT | A | 125 | Claude Code, Codex |