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hoop: Instructions file for Claude Code

CLAUDE.md

hoop CLAUDE.md is an instructions file for Claude Code from hoophq/hoop. It costs 8,033 tokens per session, scanned A, original, MIT.

A guide for working on Hoop, a Go workspace containing gateway, agent, client, tunnel, sidecar, and related modules, plus a React frontend and other components. It lists required tools, databases, private dependencies, and API documentation steps.

In plain words
What is it for?
Use it when building or debugging Hoop services, frontend applications, Rust components, database migrations, API documentation, or local development environments.
Why use it?
It gives an agent the setup and dependency details needed to build and change a multi-module system. It also explains special requirements such as private library access and database configuration.

Instructions file for Claude Code

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

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

not rated 837repo +6 changed 3d ago A scan 8,033 tokens original MIT
View source ↗ hoophq/hoop hoop.dev
Reuse

Borrowing it

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

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 8,033 This file is loaded in full into every session.
When invoked 8,033 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 $0.08033 $0.08033
Opus 5.5 $0.03213 $0.03213
Sonnet 5.5 $0.01607 $0.01607
Haiku 4.5 $0.00803 $0.00803

Measured 3d ago against content hash af30ecf5022c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hoop 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 3d 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 · 412 lines

How it starts

The opening of the file, as written. The whole thing — 412 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Project Overview

A Go workspace (go.work) for the hoop gateway, agent, and CLI.

  • Product modules: gateway/, agent/, client/, common/, tunnel/.
  • sidecar/ adds nine more workspace entries (the module plus eight nested ones). It was hoopinspect/ until the CLI command became hoop start sidecar.
  • agentrs/ — Rust companion binary for RDP/TLS proxy workloads.
  • webapp/ — legacy ClojureScript SPA; see webapp/CLAUDE.md for its own conventions.
  • webapp_v2/ — React frontend that is replacing it.
  • libhoop is not in this repo. It is one private module, github.com/hoophq/libhoop, resolved from the module proxy like any other dependency. Builds need GOPRIVATE=github.com/hoophq/libhoop,github.com/hoophq/libhoop-ica and credentials for both: client/, sidecar/ica and sidecar/cmd also link the private libhoop-ica (Citrix ICA engine). To work against a local clone, make libhoop-dev.

Toolchain & Prerequisites

  • Go >= 1.26, Rust + cross (for cross-compiled agentrs), Docker, Node/npm, Clojure/Java.
  • PostgreSQL is the default state store (POSTGRES_DB_URI). POSTGRES_DB_URI=pglite:///<data-dir> starts the embedded PGlite instead (gateway/pglite).
  • golang-migrate CLI for creating new SQL migration files.
  • swag (v1.16.3) for regenerating OpenAPI docs.
  • See DEV.md for full setup walkthrough.

Architecture

┌────────┐  gRPC :8010   ┌─────────┐  gRPC :8010   ┌───────┐
│ Client │ ─────────────> │ Gateway │ <──────────── │ Agent │
│ (CLI)  │  Packet stream │  (API+  │  Packet stream│       │
└────────┘                │  gRPC)  │               └───────┘
                          │ :8009 HTTP/UI
                          └─────────┘
                               │
                          PostgreSQL

Module Breakdown

Client (client/)

  • Entrypoint: client/hoop.go → client/cmd/root.go (Cobra CLI).
  • Key commands: connect.go, exec.go, login.go, run.go, start.go, proxymanager.go, etc.
  • User commands send packetized messages over a Transport.Connect bidirectional gRPC stream.
  • Local proxy manager (client/cmd/proxymanager.go) opens local ports for protocol proxying (PG, SSH, etc).

Read the full file on GitHub · 412 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. 3d ago Changed · +1 lines · +116 tokens per session af30ecf5022c
  2. 5d ago Changed · +1 lines · +52 tokens per session 4cd4f30487dc
  3. 10d ago Changed · +2 lines · +27 tokens per session cf742e6daa04
  4. 11d ago Changed · +9 lines · +270 tokens per session 8ddf027ef887
  5. 13d ago Changed · +12 tokens per session 8f5bf96d5f1c
  6. 17d ago Changed · +16 tokens per session a207ee52d9e7
  7. 19d ago Changed · +1 lines · +77 tokens per session 71d5a698b9bb
  8. 21d ago Changed · +9 lines · +174 tokens per session 338cf70097ee
  9. 27d ago Changed · +29 tokens per session 9c64f78b4481
  10. 1mo ago First seen · 389 lines · 7,260 tokens per session scan A 91677cd1147b

Subscribe to this mod's changes

hoop CLAUDE.md is an instructions file published in the GitHub repository hoophq/hoop (837 stars, last pushed today), licensed MIT. It adds 8,033 tokens to every session, about $0.0321 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 2026-08-30.

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