Borrowing it
Nothing to install: this file belongs to cnrture/Rune. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/cnrture/Rune/master/CLAUDE.mdgit clone --depth 1 https://github.com/cnrture/RuneWrote 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.
[](https://agentmods.dev/instructions/cnrture/rune/claude-md)<a href="https://agentmods.dev/instructions/cnrture/rune/claude-md"><img src="https://agentmods.dev/badge/instructions/cnrture/rune/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.
<a href="https://agentmods.dev/instructions/cnrture/rune/claude-md"><img src="https://agentmods.dev/badge/instructions/cnrture/rune/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 5.1 | $0.01708 | $0.01708 |
| Opus 5.5 | $0.00683 | $0.00683 |
| Sonnet 5.5 | $0.00342 | $0.00342 |
| Haiku 4.5 | $0.00171 | $0.00171 |
Grade A, and why
Rune 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.
How it starts
The opening of the file, as written. The whole thing — 145 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.
Build & Run Commands
# Run plugin in a sandboxed IDE instance
./gradlew runIde
# Run tests
./gradlew check
# Run a single test class
./gradlew test --tests "com.github.cnrture.rune.SomeTest"
# Build distribution ZIP
./gradlew buildPlugin
# Publish to JetBrains Marketplace
./gradlew publishPlugin
# Run UI tests (starts a robot server on port 8082)
./gradlew runIdeForUiTests
# Verify plugin compatibility
./gradlew runPluginVerifier
Target platform: IntelliJ Community (IC) version 2024.3.1, compatible with 241–253.*. JVM toolchain: Java 21. Kotlin 2.3.20, Compose Desktop 1.10.1. Depends on bundled org.jetbrains.plugins.terminal.
Key dependencies: kotlinx-serialization-json 1.10.0, FreeMarker 2.3.34. Version catalog in gradle/libs.versions.toml.
Gradle memory: Daemon uses -Xmx2g -XX:MaxMetaspaceSize=512m, Kotlin daemon uses -Xmx2g. Configuration cache and build cache are enabled.
Note: No test files currently exist in the project. JUnit 4.13.2 is configured as a dependency.
Architecture
IntelliJ Platform plugin ("Rune") built with Kotlin and Jetpack Compose Desktop for UI. No DI framework — all dependencies are wired manually.
Single tool window registered in plugin.xml:
ClaudeToolWindowFactory→ "Claude" panel (right sidebar): Claude CLI terminal integration with session management, skill/agent pickers, command palette
Layer structure
toolwindow/ (Compose UI in ComposePanel)
↓
domain/usecase (business logic)
↓
data/repository (SkillRepository)
↓
service/ (FileScanner, Settings, VCS platform services)
common/ (CliUtils, Constants, VcsProvider)
Key packages
| Package | Responsibility |
|---|---|
toolwindow/ |
Claude terminal UI: ClaudeTerminalContent, SessionTabBar, TerminalInputBar, UnifiedCommandPalette, ClaudeSessionService |
domain/usecase/ |
ScanSkillsUseCase |
data/ |
SkillRepository / SkillRepositoryImpl – scans markdown files, 5-minute cache |
service/ |
FileScanner, PluginSettingsService, PluginConfigurable, JiraService, VcsCacheService, GitHubPlatformService, BitbucketCloudPlatformService, BitbucketCredentialService |
common/ |
CliUtils (CLI resolution + process execution), Constants, VcsProvider / VcsProviderDetector |
components/ |
Reusable Compose components (all prefixed TP: TPTabRow, TPActionCard, TPText, TPDialogWrapper, etc.) |
theme/ |
TPTheme / TPColor – always use TPTheme.colors.* for colors |
actions/ |
VCS actions, editor notifications, dialogs (commit message generation, PR creation, skill creation) |
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.
- 2mo ago First seen · 145 lines · 1,708 tokens per session scan A 3da2baf79d7a
Rune CLAUDE.md is an instructions file published in the GitHub repository cnrture/Rune (10 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 1,708 tokens to every session, about $0.0068 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.