lensflare: Instructions file for Claude Code

CLAUDE.md

lensflare CLAUDE.md is an instructions file for Claude Code from voidhashcom/lensflare. It costs 237 tokens per session, scanned A, original, MIT.

Project instructions for a React and Effect codebase. Effect is a TypeScript library for structuring programs with services, configuration, errors, and other managed operations.

In plain words
What is it for?
They are for finding approved Effect guides and examples before coding, implementing services and error handling, and building UI components in the expected JSX or TSX style.
Why use it?
They prevent developers from guessing at Effect patterns and keep interface code aligned with the repository's existing React and Tailwind conventions.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

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

Reuse

Borrowing it

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

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 237 This file is loaded in full into every session.
When invoked 237 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 $0.00237 $0.00237
Opus 5.5 $0.00095 $0.00095
Sonnet 5.5 $0.00047 $0.00047
Haiku 4.5 $0.00024 $0.00024

Measured 2mo ago against content hash 29485cbb07e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lensflare 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 · 30 lines

What it actually says

Effect Best Practices

IMPORTANT: Always consult effect-solutions before writing Effect code.

  1. Run pnpm exec effect-solutions list to see available guides
  2. Run pnpm exec effect-solutions show <topic>... for relevant patterns (supports multiple topics)
  3. Search ~/.local/share/effect-solutions/effect for real implementations

Topics: quick-start, project-setup, tsconfig, basics, services-and-layers, data-modeling, error-handling, config, testing, cli.

Never guess at Effect patterns - check the guide first.

Local Effect Source

The Effect v4 repository is cloned to ~/.local/share/effect-solutions/effect for reference. Use this to explore APIs, find usage examples, and understand implementation details when the documentation isn't enough.

UI Components

For UI work in this repo, use standard React JSX/TSX files.

  • Prefer plain React function components and normal JSX control flow.
  • Keep styling consistent with the existing Tailwind and UI wrapper patterns in apps/web/src/components.
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 · 30 lines · 237 tokens per session scan A 29485cbb07e9

Subscribe to this mod's changes

lensflare CLAUDE.md is an instructions file published in the GitHub repository voidhashcom/lensflare (100 stars, last pushed 4mo ago), licensed MIT. It adds 237 tokens to every session, about $0.0009 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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