What is impeccable CLAUDE.md?

A project-instructions file for Claude Code that explains the Impeccable project's structure, commands, supported platforms, and design-work modes.

Use it when working on Impeccable's web, iOS, Android, or adaptive designs, or when managing generated design files and command redirects.

It gives the coding agent the project-specific rules and helps it find the right reference material for each command.

impeccable CLAUDE.md — Instructions file by pbakaus

Install

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.

agentmods

npx agentmods add instructions/pbakaus/impeccable/claude-md

Clone the repo

git clone --depth 1 https://github.com/pbakaus/impeccable

Per session 9,680 This file is loaded in full into every session.

When invoked 9,680 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.09680	$0.09680
Opus 5	$0.04840	$0.04840
Sonnet 5	$0.01936	$0.01936
Haiku 4.5	$0.00968	$0.00968

Measured 2d ago against content hash 46f348a2ac42, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

impeccable CLAUDE.md 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.

CLAUDE.md · 354 lines

How it starts

The opening of the file, as written. The whole thing — 354 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Instructions for Claude

Architecture (v3.0+)

There is one user-invocable skill, impeccable, with 23 commands underneath it. Users type /impeccable polish, /impeccable audit, etc. The skill is defined in skill/:

SKILL.src.md — frontmatter (with the auto-trigger-optimized description and the allowed-tools list), shared design laws, and the Commands router table. Provider SKILL.md files are generated from this source.
reference/ — one <command>.md per command (audit.md, polish.md, critique.md, etc.), the shared playbooks the router loads outside the command table (new-work.md, craft-floor.md, operate.md, routing.md), and the native platform references (ios.md, android.md). When a sub-command is matched, the router loads its reference file.
scripts/command-metadata.json — single source of truth for each command's description, argument hint, and (eventually) category. Both the build and pin.mjs read from this.
scripts/pin.mjs — creates/removes lightweight redirect shims so users can have /audit as a standalone shortcut that delegates to /impeccable audit.

Do not add standalone skills unless there's a strong reason. The consolidation was deliberate: the / menu pollution problem is real and gets worse as users install more plugins.

Do not reintroduce per-domain reference files. v4 removed typography.md, color-and-contrast.md, spatial-design.md, motion-design.md, interaction-design.md, responsive-design.md, ux-writing.md, cognitive-load.md, personas.md, heuristics-scoring.md, build-floor.md, and live-generation.md. Their content lives in the command references and craft-floor.md, where it is loaded only when it applies.

Modes (Persuade / Operate / Read / Experience)

v4 replaced the old brand/product register axis with four modes, named in SKILL.src.md's ## Modes section. A mode names what the visitor's success looks like on the surface in hand:

Read the full file on GitHub · 354 lines

Changes

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 · 354 lines · 9,680 tokens per session scan A 46f348a2ac42

Subscribe to this mod's changes

impeccable CLAUDE.md is an instructions file published in the GitHub repository pbakaus/impeccable (64,510 stars, last pushed today), licensed Apache-2.0. It adds 9,680 tokens to every session, about $0.0484 per session on Opus 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 2026-08-30.

Mobile Planning

impeccable CLAUDE.md

Getting it into your agent

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Project Instructions for Claude

Architecture (v3.0+)

Modes (Persuade / Operate / Read / Experience)

What this file has done since we first saw it

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