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ZipAI: Instructions file for Claude Code

CLAUDE.md

ZipAI CLAUDE.md is an instructions file for Claude Code from nickdesi/ZipAI. It costs 1,204 tokens per session, scanned A, original, MIT.

A set of Claude Code instructions for ZipAI, a tool that reduces prompt size and removes unnecessary text.

In plain words
What is it for?
Use it to guide Claude Code while working on ZipAI, especially when writing queries, reviewing code, managing prompt context, or inspecting errors.
Why use it?
It gives Claude Code consistent rules for concise communication, handling ambiguity, organizing context, and filtering logs. The file is meant to stay synchronized with the project's main skill instructions.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is nickdesi/ZipAI's own configuration. It tells Claude Code how to work on ZipAI itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ZipAI configures →

not rated 1repo 2mo ago A scan 1,204 tokens original MIT
View source ↗ nickdesi/ZipAI
Reuse

Borrowing it

Nothing to install: this file belongs to nickdesi/ZipAI. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/nickdesi/ZipAI/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/nickdesi/ZipAI

Made for: Claude Code.

Wrote 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.

agentmods badge for ZipAI CLAUDE.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/nickdesi/zipai/claude-md"><img src="https://agentmods.dev/badge/instructions/nickdesi/zipai/claude-md/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.

agentmods 80×15 button for ZipAI CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nickdesi/zipai/claude-md"><img src="https://agentmods.dev/badge/instructions/nickdesi/zipai/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,204 This file is loaded in full into every session.
When invoked 1,204 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01204 $0.01204
Opus 5.5 $0.00482 $0.00482
Sonnet 5.5 $0.00241 $0.00241
Haiku 4.5 $0.00120 $0.00120

Measured 2mo ago against content hash bf0670f6eb8d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ZipAI 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 2mo 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 · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — ZipAI: Ultra-Dense Token Optimizer

Canonical source: SKILL.md (v15.0) This file mirrors SKILL.md for Claude Code auto-detection. Keep in sync.

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Rules

1. Zero Filler

  • Tone: Technical only. No conversational filler ("certainly", "here is", "sure", "I understand").
  • CoT: Full reasoning allowed in thought blocks.
  • Queries: Max 15 words, telegraphic grammar, no helper verbs/articles.
  • History: Do not re-summarize past thread context.
  • Reviews: Use headers: [ISSUE], [SUGGESTION], [NITPICK].

2. Ambiguity

  • Ask: Ask exactly 1 question if 2+ interpretations exist. No stacked questions.
  • Default: Minimal intervention, narrowest boundary.

3. Prompt Caching

  • Layout: Invariant data (schemas, instructions, tool definitions) at top; dynamic data (history, files, CLI output) at bottom.
  • Integrity: No dynamic context inside static blocks. Keep system instructions strictly invariant.
  • Files: Reuse history content; do not re-read unchanged files.

4. Input Pruning

  • Logs: Filter to tracebacks/errors + max 3 lines context. Strip info/success logs. Parse numeric tokens (timestamps, counters) via delta extraction rather than full value repetition.
  • AST: For files >300 lines, grep signature outlines (class, def, const, etc.) before reading ranges.
  • Data: Strip whitespace/comments/unused keys from JSON/YAML. Array to CSV/key-val. Minify structured payloads before ingestion.
  • Visual: Crop to relevant regions. Discard uniform/background patches before tokenization.

5. Surgical Output

  • Edits: Local replacements (str_replace/single hunks). No full-file prints.
  • Batching: Merge non-contiguous edits in a file to single multi-replace chunk, ordered leaf-to-root.
  • Repetition: Omit unchanged surrounding code in replies.

6. Grammar & Density

Read the full file on GitHub · 95 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.

  1. 2mo ago First seen · 95 lines · 1,204 tokens per session scan A bf0670f6eb8d

Subscribe to this mod's changes

ZipAI CLAUDE.md is an instructions file published in the GitHub repository nickdesi/ZipAI (1 stars, last pushed 2mo ago), licensed MIT. It adds 1,204 tokens to every session, about $0.0048 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.

Claude CodeData and AIPromptingai-agentsantigravitycontext-engineeringprompt-cachingtoken-optimization
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