Borrowing it
Nothing to install: this file belongs to thorstenfoltz/octa. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/thorstenfoltz/octa/master/CLAUDE.mdgit clone --depth 1 https://github.com/thorstenfoltz/octaWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/thorstenfoltz/octa/claude-md)<a href="https://agentmods.dev/instructions/thorstenfoltz/octa/claude-md"><img src="https://agentmods.dev/badge/instructions/thorstenfoltz/octa/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/thorstenfoltz/octa/claude-md"><img src="https://agentmods.dev/badge/instructions/thorstenfoltz/octa/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.03365 | $0.03365 |
| Opus 5.5 | $0.01346 | $0.01346 |
| Sonnet 5.5 | $0.00673 | $0.00673 |
| Haiku 4.5 | $0.00336 | $0.00336 |
Grade D, and why
octa CLAUDE.md scanned grade D with 3 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 22d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
`sudo ./install.sh` for system-wide on Linux, `./install.sh ~/.local` for user-local. `get-octa.sh` is the one-line `curl | bash` installer for released builds: Linux x86_64 (`/usr/local` with sudo, or a prefix argument) Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
`sudo ./install.sh` for system-wide on Linux, `./install.sh ~/.local` for user-local. `get-octa.sh` is the one-line `curl | bash` installer for released builds: Linux x86_64 (`/usr/local` with sudo, or a prefix argument) Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
`sudo ./install.sh` for system-wide on Linux, `./install.sh ~/.local` for user-local. `get-octa.sh` is the one-line `curl | bash` installer for released builds: Linux x86_64 (`/usr/local` with sudo, or a prefix argument) How it starts
The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Guidance for Claude Code when working in this repository.
Commands
cargo build # debug build
cargo build --release # release build
cargo run -- file.parquet
cargo test
cargo test <test_name>
cargo clippy
cargo fmt
Installation
sudo ./install.sh for system-wide on Linux, ./install.sh ~/.local for user-local. get-octa.sh is the one-line curl | bash installer for released builds: Linux x86_64 (/usr/local with sudo, or a prefix argument) and macOS arm64 (Octa.app into ~/Applications, octa linked into ~/.local/bin, no sudo, no Gatekeeper prompt since curl sets no quarantine flag); it verifies the tarball against SHA256SUMS. On Windows: install.bat (system-wide, admin; bundled in the release zip) or install.ps1 (per-user, no admin; run standalone from the repo root, NOT shipped in the zip since it downloads the zip itself) — the PowerShell script downloads the latest release, verifies the SHA256 against SHA256SUMS, installs into %LOCALAPPDATA%\Programs\Octa, and Unblock-Files the binary to dodge SmartScreen. Linux build needs libgtk-3-dev libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev libssl-dev libfontconfig1-dev libfreetype6-dev.
Architecture
Native desktop GUI for tabular data, eframe/egui (immediate-mode), Rust edition 2024. Needs a C compiler (duckdb, rusqlite). The crate is both a library (src/lib.rs re-exports data, formats, ui) and a binary (src/main.rs); tests use octa::data::*.
Renderer: glow (OpenGL), deliberately not eframe's default. eframe's default feature selects wgpu, which links naga (a shader compiler), wgpu-core/-hal/-types, ash (Vulkan bindings), spirv and gpu-allocator: 23 crates and ~3.5 MB for a program that draws 2D tables and writes no shaders. eframe is therefore declared default-features = false with an explicit ["accesskit", "default_fonts", "glow", "wayland", "x11"]. Do NOT "fix" it back to default. glutin covers every target: GLX+EGL on X11, EGL on Wayland, WGL on Windows, CGL on macOS (Apple's deprecated-but-present OpenGL; the fallback if that ever breaks is a per-target [target.'cfg(target_os = "macos")'] block selecting wgpu there only).
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.
- 22d ago Changed · +3 lines · +488 tokens per session scan B → D fa58ba2011dd
- 1mo ago Changed · +1 lines · +126 tokens per session 27528eb22506
- 2mo ago Changed · +3 lines · +58 tokens per session 820a98fde70e
- 2mo ago First seen · 91 lines · 2,693 tokens per session scan B 572f4414ddaf
octa CLAUDE.md is an instructions file published in the GitHub repository thorstenfoltz/octa (36 stars, last pushed 10d ago), licensed MIT. It adds 3,365 tokens to every session, about $0.0135 per session on Opus 5.5. A static security scan graded it D with 3 findings (asks for root, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
octa CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| octa CLAUDE.mdthorstenfoltz/octa | Instructions file | 36 | 10d ago | MIT | D | 3,365 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
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| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
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