Electrobun is a toolkit for building, updating, and shipping small cross-platform desktop applications written in TypeScript. Developers use its Hutch command-line tool, JavaScript runtime, and native platform layer to create and build these apps.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/blackboardsh/electrobun/claude-mdgit clone --depth 1 https://github.com/blackboardsh/electrobunWrote 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/blackboardsh/electrobun/claude-md)<a href="https://agentmods.dev/instructions/blackboardsh/electrobun/claude-md"><img src="https://agentmods.dev/badge/instructions/blackboardsh/electrobun/claude-md.svg" alt="Measured on agentmods" 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 | $0.00371 | $0.00371 |
| Opus 5 | $0.00186 | $0.00186 |
| Sonnet 5 | $0.00074 | $0.00074 |
| Haiku 4.5 | $0.00037 | $0.00037 |
Grade A, and why
electrobun 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 5d 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.
What it actually says
Claude Development Guidelines for Electrobun
Building and Running Electrobun
IMPORTANT: Build Commands
NEVER run Electrobun from node_modules. Electrobun 2 uses Hutch as its
build CLI, with npm only for this repository's development dependencies:
-
From the package folder (
/home/yoav/code/electrobun/package/):npm ci- Installs the repository's pinned development dependencieshutch dev- Builds and runs the Kitchen app in dev modehutch dev:template <template-name>- Builds and runs one repository template against the local devkithutch dev:canary- Builds the Kitchen app in canary mode
-
Build Process Flow:
- Always run build commands from the
packagefolder - The build process will automatically:
- Build the native wrappers
- Compile the TypeScript code
- Build the versioned core and devkit
- Switch to the kitchen folder and build/run the app
- Always run build commands from the
Project Structure
/package- Main Electrobun package source/kitchen- Test application (Kitchen Sink)/npm/electrobun- Single dependency-free npm bootstrap; it reads the same-version GitHub Release'shutch-artifacts.json, downloads and verifies the paired host archive, then safely caches and invokes the extracted Hutch launcher (with no platform npm packages or postinstall script)/package/src/sdks- Versioned language SDK sources published in the devkit/package/src/extractor- Self-extractor implementation (Zig)/package/src/native- Native wrappers for each platform
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.
- 5d ago First seen · 35 lines · 371 tokens per session scan A 188a03cbb1bc
electrobun CLAUDE.md is an instructions file published in the GitHub repository blackboardsh/electrobun (12,750 stars, last pushed 5d ago), licensed MIT. It adds 371 tokens to every session, about $0.0019 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.
Other instructions, from other repositories
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AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
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langchain AGENTS.md
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vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.