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crune: Instructions file for Claude Code

CLAUDE.md

crune CLAUDE.md is an instructions file for Claude Code from chigichan24/crune. It costs 4,482 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for crune, a web dashboard that turns Claude Code session logs into searchable visual views. The dashboard uses generated data to show overviews, session playback and a knowledge graph.

In plain words
What is it for?
Analyzing Claude Code logs, starting the local dashboard, building it for deployment, checking code quality and running its local synthesis server.
Why use it?
They explain how session data is generated and how the frontend is structured, so an agent can work on the right part of the project.

Instructions file for Claude Code

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

This is chigichan24/crune's own configuration. It tells Claude Code how to work on crune 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 crune configures →

not rated 23 1mo ago A scan 4,482 tokens original Apache-2.0
View the source file chigichan24/crune
Reuse

Borrowing it

Nothing to install: this file belongs to chigichan24/crune. 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/chigichan24/crune/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/chigichan24/crune

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 crune CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/chigichan24/crune/claude-md.svg)](https://agentmods.dev/instructions/chigichan24/crune/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/chigichan24/crune/claude-md"><img src="https://agentmods.dev/badge/instructions/chigichan24/crune/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 4,482 This file is loaded in full into every session.
When invoked 4,482 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.04482 $0.04482
Opus 5 $0.02241 $0.02241
Sonnet 5 $0.00896 $0.00896
Haiku 4.5 $0.00448 $0.00448

Measured 6d ago against content hash e56a7615edaf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

crune 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 6d 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 · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Project Overview

crune is a static web dashboard that visualizes Claude Code session logs. It consists of two parts:

  1. Data pipeline (scripts/analyze-sessions.ts + scripts/knowledge-graph-builder.ts): Reads JSONL session files, extracts structured data, builds a semantic knowledge graph, and outputs JSON files to public/data/sessions/.
  2. Frontend (src/): React SPA that loads the generated JSON and renders three views --- Overview, Session Playback, and Knowledge Graph.

Build & Run

npm install
npm run analyze-sessions   # Generate data from ~/.claude/projects/
npm run dev                # Vite dev server at localhost:5173
npm run build              # tsc -b && vite build -> dist/
npm run lint               # ESLint
npm run skill-server       # Local synthesis server at localhost:3456
npm run dev:full           # skill-server + Vite dev server together

Architecture

  • No routing library --- App.tsx manages view state via useState<ViewMode> (overview | playback | knowledge)
  • No state management library --- Data flows through props from App.tsx down. Each view fetches its own data via custom hooks (useSessionIndex, useSessionDetail, useSessionOverview)
  • Plain CSS --- Each component has a co-located .css file. Global CSS variables are in src/index.css (colors, fonts, shadows)
  • Session playback opens as a right-side drawer overlay, not a separate route

Key Conventions

  • UI text is in Japanese (commit abc92e1)
  • Color variables have semantic roles: --accent (amber, interactive), --brand (amber, logo only — unified with accent), --success/warning/danger (status), --chart-1..6 (data visualization)
  • Tool call display logic is centralized in ToolCallBlock.tsx with per-tool rendering (Bash, Edit, Write, Read, Grep, Glob, Agent)
  • Expand/collapse pattern: useState(false) + conditional render (no animation), see SubagentBranch.tsx

Data Pipeline Details

analyze-sessions.ts reads from ~/.claude/projects/ by default. Override with --sessions-dir and --output-dir flags.

Read the full file on GitHub · 211 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. 6d ago First seen · 211 lines · 4,482 tokens per session scan A e56a7615edaf

Subscribe to this mod's changes

crune CLAUDE.md is an instructions file published in the GitHub repository chigichan24/crune (23 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 4,482 tokens to every session, about $0.0224 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.

claude-codeskills
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