adsb-3d: Instructions file for Claude Code

CLAUDE.md

adsb-3d CLAUDE.md is an instructions file for Claude Code from hook-365/adsb-3d. It costs 3,421 tokens per session, scanned A, original, MIT.

Project instructions for ADS-B 3D, a web app that displays nearby aircraft traffic in three dimensions using aircraft broadcast data.

In plain words
What is it for?
They are for maintaining the frontend, aircraft-data services, reverse proxy, Docker image, and project settings.
Why use it?
They give an AI coding assistant the project layout, architecture, services, and rules it needs to make informed changes.

Instructions file for Claude Code

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

This is hook-365/adsb-3d's own configuration. It tells Claude Code how to work on adsb-3d 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 adsb-3d configures →

Reuse

Borrowing it

Nothing to install: this file belongs to hook-365/adsb-3d. 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/hook-365/adsb-3d/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/hook-365/adsb-3d

Made for: Claude Code.

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Per session 3,421 This file is loaded in full into every session.
When invoked 3,421 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 $0.03421 $0.03421
Opus 5.5 $0.01368 $0.01368
Sonnet 5.5 $0.00684 $0.00684
Haiku 4.5 $0.00342 $0.00342

Measured today against content hash 7bbb2a6bf5ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

adsb-3d 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 today.

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 · 242 lines

How it starts

The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Orientation for an AI assistant working in this repo. Project-specific only — no deployment/homelab details (those live in env vars and .env, never here).

What this is

ADS-B 3D — real-time 3D visualization of ADS-B aircraft traffic. A single nginx Docker image serves a Vite / TypeScript / Three.js frontend and reverse- proxies a user-supplied ADS-B feeder plus two optional FastAPI services. The frontend uses no framework — DOM and Three.js directly.

Three feature tiers, all optional and off by default: historical playback (needs track-service + TimescaleDB), ACARS messages (needs acars-service), and a VHF voice scanner (needs an external voice-services stack).

Repo layout

  • frontend/ — Vite + TS + Three.js app (~37 modules under src/). Built to static assets, served by nginx.
  • track-service/ — FastAPI + asyncpg. Live WebSocket diff stream + a historical-data collector writing to TimescaleDB.
  • acars-service/ — FastAPI bridge to an external acarshub TCP JSON feed.
  • nginx/ — reverse-proxy + static-host config templates.
  • Dockerfile + entrypoint.sh — single image. The entrypoint renders config.js (frontend runtime config) and the nginx config from environment variables at container start.
  • docs/ — VOICE.md, REVERSE-PROXY.md, PRODUCTION-CHECKLIST.md.

Frontend architecture

The defining pattern is inverted dataflow + a reconciler:

  • aircraft/store.ts (AircraftStore) is the single source of truth for aircraft state.
  • aircraft/reconciler.ts runs once per frame: it diffs the store against the Three.js scene and creates / updates / removes a per-aircraft Group (cone, ground icon, altitude line, trail, CSS label, rings). The reconciler owns the aircraft scene graph — do not add or remove aircraft objects elsewhere.

State is shared via subscribe-pattern singletons: a module-level singleton exposing getX() / updateX() / subscribeX() backed by a listener Set. No reactivity library. Examples: core/settings.ts, core/theme.ts, core/time-context.ts, core/filter.ts, feed/feeds.ts, feed/voice-calls.ts, aircraft/acars-store.ts.

Read the full file on GitHub · 242 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. today Changed · +9 lines · +166 tokens per session 7bbb2a6bf5ff
  2. 8d ago Changed · +11 lines · +226 tokens per session 8d2c1423fdab
  3. 1mo ago Changed · +2 lines · +40 tokens per session e21c3b5a3e72
  4. 1mo ago Changed · +15 lines · +254 tokens per session ccd069a5c161
  5. 2mo ago First seen · 205 lines · 2,735 tokens per session scan A f1e737902f72

Subscribe to this mod's changes

adsb-3d CLAUDE.md is an instructions file published in the GitHub repository hook-365/adsb-3d (55 stars, last pushed yesterday), licensed MIT. It adds 3,421 tokens to every session, about $0.0137 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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