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/is-bo/fullstack-forge-skill/impeccablenpx skills add is-bo/fullstack-forge-skill --skill impeccablegit clone --depth 1 https://github.com/is-bo/fullstack-forge-skillWrote 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/is-bo/fullstack-forge-skill/impeccable)<a href="https://agentmods.dev/skills/is-bo/fullstack-forge-skill/impeccable"><img src="https://agentmods.dev/badge/skills/is-bo/fullstack-forge-skill/impeccable.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 5.1 | $0.00189 | $0.02388 |
| Opus 5 | $0.00095 | $0.01194 |
| Sonnet 5 | $0.00038 | $0.00478 |
| Haiku 4.5 | $0.00019 | $0.00239 |
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 2d 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
91% identical to impeccable — 20 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 — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This skill gives you the tools and permission to create design that earns to be called out-of-distribution craft: Whereas before, your design work would have been safe, timid and measured, you now approach every design task as a award-winning design director with impeccable understanding for what makes exceptional design work: production-grade code, peak creativity, a clear POV, deep understanding of the needs of the client and users, and exceptional craft.
Core principles:
- Go all out. No hedging, no shortcuts. The deliverable must be complete (except assets the user must provide).
- Dream big and bold. Distinct, beautiful, outstanding and highly inspiring work.
- Iterate with tools available to you (e.g. visual understanding, browser screenshots) until you think this meets the bar.
Setup
- Run
node .claude/skills/impeccable/scripts/context.mjsonce per session (if the runtime shows this skill's loaded base directory, runnode <skill-base-dir>/scripts/context.mjs; keep cwd at the user's project). Pass a named source file or route as--target <path>. It loads PRODUCT.md, DESIGN.md, the matching surface brief, and native-platform guidance when applicable; follow its directives and do not rerun it. - Before acting, load the one playbook that owns the request: the Commands table's reference for an explicit or clearly implied sub-command, or reference/new-work.md for a new surface or replacement visual world. Then inspect the target and at least one representative source of incumbent visual truth (tokens, theme, CSS, component, or asset) before editing.
- After analysis and direction are resolved, load reference/craft-floor.md immediately before editing UI. It carries the quality floor, the absolute bans, and the reflexes no detector catches. Do not load it for planning-only work.
How to design
- The brief wins. Honor pinned aesthetics, eras, materials, fonts, and palettes even when they conflict with a saturated-pattern warning. Redirecting a clear brief toward your taste is failure.
- Refinement preserves; redesign replaces. Refinement keeps the incumbent identity, behavior, copy, and everything outside scope. Ask before replacing factual copy or adding claims. Redesign keeps product truth, content, function, native affordances, and constraints, but treats the old look as evidence and anti-reference; choose a replacement world in new-work and replace DESIGN.md. Never split the difference into polish on the discarded look.
- Visual authority is evidence, not a filename. Missing DESIGN.md alone does not make a project greenfield; new-work decides whether to preserve, expand, or replace the incumbent world.
What ships with it
31 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.
- reference/adapt.md 10 KB
- reference/adapt.native.md 3.8 KB
- reference/android.md 3.2 KB
- reference/animate.md 4.7 KB
- reference/audit.md 7.6 KB
- reference/audit.native.md 8.2 KB
- reference/bolder.md 3.1 KB
- reference/clarify.md 4.5 KB
- reference/colorize.md 4.4 KB
- reference/craft-floor.md 3.0 KB
- reference/craft.md 555 B
- reference/critique.md 39 KB
- reference/delight.md 3.6 KB
- reference/distill.md 5.5 KB
- reference/document.md 27 KB
- reference/extract.md 3.3 KB
- reference/harden.md 8.2 KB
- reference/init.md 8.0 KB
- reference/ios.md 2.9 KB
- reference/layout.md 5.0 KB
- reference/new-work.md 22 KB
- reference/onboard.md 7.6 KB
- reference/operate.md 4.0 KB
- reference/optimize.md 7.4 KB
- reference/overdrive.md 8.6 KB
- reference/polish.md 5.1 KB
- reference/quieter.md 4.7 KB
- reference/routing.md 2.8 KB
- reference/shape.md 3.5 KB
- reference/typeset.md 5.1 KB
- reference/visualize.md 4.0 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.
- 2d ago First seen · 86 lines · 189 tokens per session scan A e0627f4112f4
impeccable is a skill published in the GitHub repository is-bo/fullstack-forge-skill (2 stars, last pushed today), licensed Apache-2.0. It adds 189 tokens to every session and 2,388 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to impeccable, differing in 20 lines, and is treated as a copy.
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