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Agensaë
In private development macOS Windows

/ 01Desktop app


Sheeter

A local-first cheatsheet viewer for developers — search, copy, return to flow during AI-assisted work. Also the case study for our spec-first agent-native build workflow.

Updated

Sheeter is a lightweight desktop app for browsing, searching, and copying code snippets and reference notes—stored locally on your machine.

Sheeter main workspace with a React cheatsheet loaded and reusable snippets listed in the center pane.
Primary workspace: pick a sheet, scan entries, and copy exactly what you need.
Feature 01 · Stay in flow

Local lookup, not a context switch.

Default hotkey Space

Abstract

When you're deep in an AI-assisted coding session, small interruptions break flow: "What was that flag?" or "What's our project convention for X?" You either waste context tokens on trivia or alt-tab to Google.

Sheeter keeps your cheatsheets one keystroke away — locally, so prompts stay focused on hard problems, not reference material.

What it does

  • Fast search across every registered sheet
  • One-keystroke copy without leaving your workflow
  • Recents stack that surfaces what you used last
  • Section-scoped filters keep results tight
Feature 02 · Library & format

Plain text, your files, your folder.

Sheet format Markdown

Abstract

Cheatsheets are plain Markdown files in a folder you own — version-control them, sync them, diff them, like any other text.

Drop a file in the folder and it appears in the app. YAML frontmatter controls the display. Point at a git repo to share with your team.

What it does

  • API reminders, CLI commands, prompt templates, team conventions
  • YAML frontmatter for sections, tags, and display order
  • No import step — files are referenced in place
  • Re-indexes on launch and on file change
Feature 03 · Local-first by design

No cloud. No telemetry. No account.

Files live in ~/.sheeter

Abstract

Sheeter runs entirely on your machine. No account, no analytics, no data leaves your device.

Reference your existing Markdown files in place and search them instantly — no import step, no upload, no sync server in between.

What this means

  • Your cheatsheets directory is yours; point it anywhere
  • Teams sync via git or whatever they already use
  • No login, no email required
  • Sensitive snippets stay on your machine
How it shipped · Agent-native workflow

A workflow tuned for AI coding agents.

Source of truth AGENTS.md

Approach

Agent-assisted development can move fast, but only if the project structure is unambiguous — clear conventions, concrete acceptance criteria, and tight boundaries on every change.

Sheeter is the case study where we tuned that workflow into something repeatable.

What we changed

  • An AGENTS.md contract describing precedence rules and constraints
  • Issue prompts written as self-contained implementation briefs
  • Spec-first docs (technical requirements, blueprint, milestone plan) as the source of truth
  • Cross-platform Tauri foundations chosen for reviewable, scoped change surface

Who it’s for

  • Developers who routinely need quick syntax and command lookups
  • Teams who want a shared, searchable set of engineering conventions
  • Anyone pairing with an AI assistant and trying to avoid burning context on “trivia”

More views

Sheeter search input active while filtering snippets and commands.
1 of 3

Live search filters commands and snippets as you type.

Technical specs

The honest fine print.

Everything a developer would ask before installing a thing on their primary machine.

Platforms
macOS Apple Silicon · Windows
Runtime
Tauri (Rust) + React + TypeScript
Cheatsheet format
Markdown + YAML frontmatter
Storage
~/.sheeter/ — fully user-owned
Hotkey
Configurable · default ⌥Space
Telemetry
None — no analytics, no remote logging
Account required
No — license file is local and offline-verified
Status
Private development — early-access by invite

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