candlekit-charts: Instructions file for Claude Code

CLAUDE.md

candlekit-charts CLAUDE.md is an instructions file for Claude Code from rohanbeingsocial/candlekit-charts. It costs 3,260 tokens per session, scanned A, original, MIT.

Project instructions for CandleKit Charts, a JavaScript toolkit for displaying financial prices as candlesticks, lines, areas, and volume bars. It also documents drawing tools, indicators, measurement, replay, and synchronized charts.

In plain words
What is it for?
Use it when developing or modifying CandleKit Charts, adding chart features or indicators, connecting price data, editing React bindings, or following the repository's required workflow.
Why use it?
It provides the project rules and architecture needed to change the charting library without breaking its rendering engine, data interfaces, or legal requirements. The library is independent of React, with optional React bindings.

Instructions file for Claude Code

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

This is rohanbeingsocial/candlekit-charts's own configuration. It tells Claude Code how to work on candlekit-charts 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 candlekit-charts configures →

Reuse

Borrowing it

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

Made for: Claude Code.

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Per session 3,260 This file is loaded in full into every session.
When invoked 3,260 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 $0.03260 $0.03260
Opus 5 $0.01630 $0.01630
Sonnet 5 $0.00652 $0.00652
Haiku 4.5 $0.00326 $0.00326

Measured 11d ago against content hash 170a9e7d89ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

candlekit-charts 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 11d 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 · 255 lines

How it starts

The opening of the file, as written. The whole thing — 255 lines — stays where its author put it; the contents beside it link to each section on GitHub.

@getcandlekit/charts — Project Reference

What This Is

Framework-agnostic financial charting toolkit, a thin opinionated layer over lightweight-charts v5. Candlestick / OHLC / line / area / volume; original drawing tools, pluggable indicators, measurement ruler, deterministic replay, multi-chart sync. Core is React-free; optional React bindings ship at @getcandlekit/charts/react.

Extracted and generalized from a production trading dashboard into a standalone, public-ready library. No proprietary material, no backend, no transport — data enters via consumer-implemented *DataSource interfaces.

Repo: github.com/rohanbeingsocial/candlekit-charts (private for now). License: MIT.

Read AGENTS.md and CODEBASE_MAP.md before editing — they hold the full architecture, folder import rules, and extension points. This file is the short operational reference + the hard invariants.


The one external runtime

lightweight-charts (Apache-2.0) is the only external runtime dependency, a peer dep, the rendering engine. It is credited (NOTICE + README) with trademark acknowledgement and non-affiliation. It cannot be absorbed or renamed — legal floor.

react / react-dom are optional peers (only for /react). fancy-canvas (MIT) is types-only, transitive via lightweight-charts.

Drawing tools and indicators are original MIT code — no third-party drawing or indicator runtime. Do not reintroduce one.


Layout

src/
  core/         types, data (toBars/resample/floorToBucket), time (applyFixedOffset), theme. Pure, no runtime deps.
  events/       typed EventBus
  plugins/      ChartPlugin + PluginContext + ChartEventMap
  chart/        ChartController — imperative chart wrapper (the ms↔seconds boundary)
  data-source/  BarDataSource / StreamingDataSource / ReplayDataSource contracts
  drawing/      DrawingEngine (model) + DrawingPrimitive (canvas render) + DrawingController (plugin) + geometry + persistence
  measurement/  MeasurementController + RulerPrimitive + ChartCoordinateUtils
  indicators/   IndicatorRegistry + IndicatorController + builtin.ts (createBuiltinRegistry)
  replay/       deterministic ReplayController (per-day LRU + prefetch)
  sync/         multi-group SyncEngine
  react/        ChartView + overlay components (DrawingToolbar, IndicatorPicker, MeasurementOverlay, ReplayControls) + hooks
  workspace/    Framework-agnostic workspace contracts + PanelRegistry + WorkspaceManager + LayoutPersistence + DefaultLayouts  **[Added by Kimi]**
  react/workspace/  FlexLayoutAdapter + WorkspaceProvider + hooks + built-in panels (ChartPanel, Watchlist, etc.)  **[Added by Kimi]**
tests/          vitest unit tests (pure logic only)
examples/       workspace (the deployed unified workspace — split chart panes; each pane owns drawing/indicators/measurement/replay) + focused: react | vanilla | drawing | indicators | replay — Vite apps, consume src via alias
docs/           getting-started, architecture, api-reference, drawing-tools, indicators, replay-system, plugin-development, contributing
reports/        OSS-readiness audit, licensing-attribution, excluded-files, migration-notes, launch-and-marketing

Read the full file on GitHub · 255 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. 11d ago First seen · 255 lines · 3,260 tokens per session scan A 170a9e7d89ab

Subscribe to this mod's changes

candlekit-charts CLAUDE.md is an instructions file published in the GitHub repository rohanbeingsocial/candlekit-charts (47 stars, last pushed 8d ago), licensed MIT. It adds 3,260 tokens to every session, about $0.0163 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.

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