claude-code-prompt-plunderer: Instructions file for Claude Code

CLAUDE.md

claude-code-prompt-plunderer CLAUDE.md is an instructions file for Claude Code from levindixon/claude-code-prompt-plunderer. It costs 799 tokens per session, scanned A, original, MIT.

A CLAUDE.md guide for a Python utility that reads Claude Code conversation logs in JSONL format and analyses the prompts they contain. JSONL is a text format where each line is a separate JSON record.

In plain words
What is it for?
Use it when developing, running, or documenting the prompt-extraction tool and its reports on prompt patterns.
Why use it?
It explains the repository's files, purpose, commands, and prompt-analysis templates, giving an agent the context needed to work on the utility safely.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is levindixon/claude-code-prompt-plunderer's own configuration. It tells Claude Code how to work on claude-code-prompt-plunderer 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 claude-code-prompt-plunderer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to levindixon/claude-code-prompt-plunderer. 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/levindixon/claude-code-prompt-plunderer/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/levindixon/claude-code-prompt-plunderer

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/levindixon/claude-code-prompt-plunderer/claude-md.svg)](https://agentmods.dev/instructions/levindixon/claude-code-prompt-plunderer/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/levindixon/claude-code-prompt-plunderer/claude-md"><img src="https://agentmods.dev/badge/instructions/levindixon/claude-code-prompt-plunderer/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 799 This file is loaded in full into every session.
When invoked 799 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 $0.00799 $0.00799
Opus 5 $0.00400 $0.00400
Sonnet 5 $0.00160 $0.00160
Haiku 4.5 $0.00080 $0.00080

Measured 7d ago against content hash 5fafb7c1e0a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

claude-code-prompt-plunderer 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 7d 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 · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

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

Repository Overview

This repository contains a Python utility for analyzing Claude Code conversation history stored in JSONL files. The tool extracts user prompts from conversation logs and provides analysis capabilities including deduplication and statistical summaries.

Project Structure

  • plunder_prompts.py - Main Python script that extracts and analyzes user prompts from Claude Code conversation JSONL files
  • prompts/ - Directory containing 5 creative prompt analysis templates
    • slash_command_discovery.md - Suggests custom Claude Code slash commands based on usage patterns
    • style_tengu.md - Creates ASCII Tengu character representing prompting personality
    • frequency_chart.md - Generates ASCII visualizations of prompt patterns
    • evolution_timeline.md - Shows prompting style evolution over time
    • personality_report.md - Produces personality analysis based on prompting patterns
    • README.md - Documentation for using the prompt templates
  • examples/ - Sample output files demonstrating the tool's capabilities
    • sample_output.json - Example JSON output from the extraction tool
    • sample_output.md - Example Markdown analysis output

Commands

Running the Script

# Basic usage (uses default settings)
python3 plunder_prompts.py

# Specify custom base directory for Claude conversations
python3 plunder_prompts.py --base-dir /path/to/claude/projects

# Filter prompts by length
python3 plunder_prompts.py --min-length 100 --max-length 500

# Specify custom output file
python3 plunder_prompts.py --output ./my_prompts.json

Using Prompt Analysis Templates

After extracting prompts, use the analysis templates with Claude Code:

# Discover potential slash commands from your usage patterns
claude "$(cat prompts/slash_command_discovery.md)"

# Generate ASCII Tengu character representing your style
claude "$(cat prompts/style_tengu.md)"

# Create frequency charts and visualizations
claude "$(cat prompts/frequency_chart.md)"

# View your prompting evolution timeline
claude "$(cat prompts/evolution_timeline.md)"

# Get personality analysis based on prompts
claude "$(cat prompts/personality_report.md)"

Read the full file on GitHub · 99 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. 7d ago First seen · 99 lines · 799 tokens per session scan A 5fafb7c1e0a9

Subscribe to this mod's changes

claude-code-prompt-plunderer CLAUDE.md is an instructions file published in the GitHub repository levindixon/claude-code-prompt-plunderer (5 stars, last pushed 1y ago), licensed MIT. It adds 799 tokens to every session, about $0.0040 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 2026-08-31.

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