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 Xipher-Labs/walter-os --skill impeccablegit clone --depth 1 https://github.com/Xipher-Labs/walter-osWrote 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/xipher-labs/walter-os/impeccable)<a href="https://agentmods.dev/skills/xipher-labs/walter-os/impeccable"><img src="https://agentmods.dev/badge/skills/xipher-labs/walter-os/impeccable/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/xipher-labs/walter-os/impeccable"><img src="https://agentmods.dev/badge/skills/xipher-labs/walter-os/impeccable.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 | $0.00125 | $0.01909 |
| Opus 5.5 | $0.00050 | $0.00764 |
| Sonnet 5.5 | $0.00025 | $0.00382 |
| Haiku 4.5 | $0.00013 | $0.00191 |
Grade A, and why
impeccable 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
29 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.
- LICENSE 11 KB
- NOTICE.md 2.5 KB
- reference/adapt.md 9.9 KB
- reference/animate.md 10 KB
- reference/audit.md 6.4 KB
- reference/bolder.md 6.3 KB
- reference/brand.md 12 KB
- reference/clarify.md 10 KB
- reference/codex.md 6.6 KB
- reference/colorize.md 13 KB
- reference/craft.md 12 KB
- reference/critique.md 38 KB
- reference/delight.md 9.5 KB
- reference/distill.md 5.5 KB
- reference/document.md 27 KB
- reference/extract.md 3.2 KB
- reference/harden.md 8.4 KB
- reference/init.md 12 KB
- reference/interaction-design.md 6.4 KB
- reference/layout.md 8.5 KB
- reference/live.md 1.6 KB
- reference/onboard.md 7.6 KB
- reference/optimize.md 7.4 KB
- reference/overdrive.md 8.8 KB
- reference/polish.md 13 KB
- reference/product.md 4.7 KB
- reference/quieter.md 4.7 KB
- reference/shape.md 11 KB
- reference/typeset.md 14 KB
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 · 210 lines · 125 tokens per session scan A 8e3821df2995
impeccable is a skill published in the GitHub repository Xipher-Labs/walter-os (8 stars, last pushed 6d ago), licensed AGPL-3.0. It adds 125 tokens to every session and 1,909 once invoked, about $0.0005 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 2026-08-31.
Other skills, from other repositories
create-theme
Create custom color themes for Sidecar, including base theme selection, color overrides, gradient borders, tab styles, per-project themes, community themes, and programmatic theme registration. Use when creating or modifying themes, adjusting UI appearance, or debugging color/style issues. See…
drag-pane
Drag-and-drop pane resizing implementation for two-pane plugin layouts. Covers mouse event handling via the internal/mouse package, hit region registration, drag delta calculation, width clamping, state persistence, and pane layout management. Use when working on pane resizing, drag interactions, layout management, or…
ui-features
Implementing UI/UX features in sidecar including modals (internal/modal library), keyboard shortcuts, mouse support, scrolling, pill/tab rendering, and pane resizing. Use when implementing UI features, handling user input, adding keyboard shortcuts, building modals, or working on UX improvements.
impeccable
Use when the user wants distinctive, production-grade frontend design, anti-generic AI aesthetics, UX critique, technical UI audits, or final polish through bundled Impeccable references and an optional upstream detector CLI.
ui-ux-pro-max
Use when the user wants professional UI/UX design guidance, design-system generation, UX review, or stack-specific frontend guidance through a bundled local UI/UX Pro Max dataset and Python search runtime.
nextclaw-skin-studio
A studio for browsing, applying, creating, refining, switching, inspecting, and removing custom NextClaw skins. A skin changes an app's visual appearance and can include CSS, JavaScript, images, SVG, layout changes, and motion.