dash-sylvereye: Instructions file for Claude Code

CLAUDE.md

dash-sylvereye CLAUDE.md is an instructions file for Claude Code from observatoriogeo/dash-sylvereye. It costs 3,592 tokens per session, scanned A, original, MIT.

Repository instructions for Dash Sylvereye, a Plotly Dash component library that displays large road networks interactively in a web browser using WebGL. They explain which source files to edit and how the package is built.

In plain words
What is it for?
Use them when developing, building, or generating wrappers for the Dash Sylvereye road-network component.
Why use it?
They help contributors avoid editing generated Python, R, or Julia files when the authoritative implementation is in the React source.

Instructions file for Claude Code

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

This is observatoriogeo/dash-sylvereye's own configuration. It tells Claude Code how to work on dash-sylvereye 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 dash-sylvereye configures →

Reuse

Borrowing it

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

Made for: Claude Code.

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When invoked 3,592 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 $0.03592 $0.03592
Opus 5.5 $0.01437 $0.01437
Sonnet 5.5 $0.00718 $0.00718
Haiku 4.5 $0.00359 $0.00359

Measured 2mo ago against content hash 927767f04e32, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dash-sylvereye 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.

CLAUDE.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 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.

What this is

Dash Sylvereye is a Plotly Dash component library that renders large primal road networks (nodes/edges/markers) interactively in the browser via WebGL. The package is generated from a single React component using the dash-component-boilerplate toolchain — the Python (dash_sylvereye/), R (R/), and Julia (src/jl/, DashSylvereye.jl) wrappers are generated artifacts, not hand-edited code.

Authoritative source lives under src/lib/:

  • src/lib/components/SylvereyeRoadNetwork.react.js — thin Dash-facing wrapper, a function component. Owns the <MapContainer> and <TileLayer>, syncs map_center/map_zoom between Leaflet and Dash via the inner <MapStateSync> child (which uses useMapEvents({moveend, zoomend}) and a guarded useEffect → map.setView to avoid an infinite loop). Defines propTypes/defaultProps; react-docgen reads these to generate the backend wrappers.
  • src/lib/LeafletSylvereyeRoadNetwork.js — the real implementation (~1300 lines). Uses leaflet-pixi-overlay to draw nodes/edges/markers in a PIXI.js WebGL canvas on top of a Leaflet map, plus rbush for spatial hit-testing, chroma-js for color scales, and jsts for edge hit polygons.

The bundled JS output ships into the Python package directory as dash_sylvereye/dash_sylvereye.min.js; the Python __init__.py registers it as the component's _js_dist.

Toolchain (current versions)

  • React 18.3.1 + react-leaflet 4.2.1 (matches Dash 4's bundled React).
  • pixi.js 7.4 (Loader → Assets API; Sprite uses eventMode='static' + cursor='pointer', not the deprecated .interactive/.buttonMode).
  • webpack 5 + CLI 7 + dev-server 5; ESLint 9 flat config in eslint.config.mjs.
  • Dash 4.1+, Python ≥3.11, Node ≥18.18.
  • Python project managed by uv (pyproject.toml + uv.lock); no setup.py / requirements*.txt.

Read the full file on GitHub · 153 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. 2mo ago First seen · 153 lines · 3,592 tokens per session scan A 927767f04e32

Subscribe to this mod's changes

dash-sylvereye CLAUDE.md is an instructions file published in the GitHub repository observatoriogeo/dash-sylvereye (11 stars, last pushed 5mo ago), licensed MIT. It adds 3,592 tokens to every session, about $0.0144 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.

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