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skim: Instructions file for Claude Code

CLAUDE.md

skim CLAUDE.md is an instructions file for Claude Code from bb1nfosec/skim. It costs 160 tokens per session, scanned A, original, MIT.

Project instructions for the bb1nfosec/skim Python project. They define its test command, response style, files to avoid reading, and rules for handling research tasks and long sessions.

In plain words
What is it for?
Use them when working on the skim project to identify the package manager and test command, follow editing and response rules, and avoid unrelated generated or environment files.
Why use it?
They keep work focused and consistent by limiting file access, requiring terse code-only responses, and documenting the project's test and delegation expectations.

Instructions file for Claude Code

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

This is bb1nfosec/skim's own configuration. It tells Claude Code how to work on skim 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 skim configures →

not rated 5repo 5mo ago A scan 160 tokens original MIT
View source ↗ bb1nfosec/skim
Reuse

Borrowing it

Nothing to install: this file belongs to bb1nfosec/skim. 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/bb1nfosec/skim/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/bb1nfosec/skim

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 skim CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/bb1nfosec/skim/claude-md/github.svg)](https://agentmods.dev/instructions/bb1nfosec/skim/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/bb1nfosec/skim/claude-md"><img src="https://agentmods.dev/badge/instructions/bb1nfosec/skim/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 skim CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/bb1nfosec/skim/claude-md"><img src="https://agentmods.dev/badge/instructions/bb1nfosec/skim/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 160 This file is loaded in full into every session.
When invoked 160 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 $0.00160 $0.00160
Opus 5.5 $0.00064 $0.00064
Sonnet 5.5 $0.00032 $0.00032
Haiku 4.5 $0.00016 $0.00016

Measured 2mo ago against content hash 0aa1edfea987, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skim 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 · 26 lines

What it actually says

Project

  • Type: generic (python)
  • Package manager: pip
  • Test: python -m pytest

Response rules

  • Batch all related edits into one pass.
  • No explanations unless asked. Code only.
  • Never ask 'shall I proceed?' — just execute.
  • Read only files relevant to the current task.
  • Terse responses. No summaries of what you did.

Forbidden — never read

  • node_modules/
  • .git/
  • dist/
  • build/
  • coverage/
  • pycache/
  • .venv/
  • venv/
  • env/
  • .mypy_cache/

Research tasks → delegate to a subagent, return summary only.

Long sessions → /compact after each feature. /btw for quick lookups.

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 · 26 lines · 160 tokens per session scan A 0aa1edfea987

Subscribe to this mod's changes

skim CLAUDE.md is an instructions file published in the GitHub repository bb1nfosec/skim (5 stars, last pushed 5mo ago), licensed MIT. It adds 160 tokens to every session, about $0.0006 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.

Cost OptimizationLLManthropicclaudecontext-windowdeveloper-tools
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