Sandcode

Sandcode is a Bun CLI for ad hoc software research with OpenCode running inside Daytona sandboxes.

It does three things well:

• sandcode analyze runs evidence-based repository audits from URLs or link files.
• sandcode start boots an OpenCode web session in a fresh Daytona sandbox.
• sandcode setup launches an OpenTUI wizard for Obsidian integration and local credentials.

Install

One-off use:

bunx sandcode --help

Global install:

bun add -g sandcode

Bootstrap script:

curl -fsSL https://raw.githubusercontent.com/shpitdev/sandcode/main/scripts/install.sh | bash

Quick Start

First-run setup:

bunx sandcode setup

Analyze a repository:

bunx sandcode https://github.com/octocat/Hello-World

Analyze repositories from a link file:

bunx sandcode links.md

Launch a remote OpenCode web session:

bunx sandcode start

Requirements

• Bun 1.3+
• DAYTONA_API_KEY
• OPENCODE_API_KEY for the built-in opencode-go/* model defaults
• Optional DAYTONA_API_URL for self-hosted Daytona
• Optional OPENCODE_SERVER_PASSWORD for sandcode start
• Optional obsidian CLI for desktop note opening
• Optional ob CLI for headless Obsidian Sync workflows

Commands

sandcode --help
sandcode analyze --help
sandcode start --help
sandcode setup --help

Examples:

sandcode analyze --input example.md
sandcode analyze --out-dir findings --model opencode-go/kimi-k2.5 https://github.com/owner/repo
sandcode start --port 3000 --target us --keep-sandbox
sandcode setup --yes --vault-path ~/vaults/research --obsidian-integration headless

Setup UX

sandcode setup uses an OpenTUI wizard by default when a TTY is available.

It writes:

• ~/.config/sandcode/sandcode.toml
• ~/.config/sandcode/.env

Project-level overrides are supported with:

• sandcode.toml
• .sandcode.toml

Default Obsidian notes root:

[obsidian]
notes_root = "Research/Sandcode"

Headless mode runs a real ob sync-list-remote preflight before it saves.

Repository Audit Workflow

sandcode analyze:

• creates one Daytona sandbox per target
• clones the repo inside the sandbox
• installs OpenCode inside the sandbox
• runs a headless audit prompt
• writes findings locally
• optionally catalogs findings into Obsidian

Default output layout:

• <out-dir>/index.md
• <out-dir>/<YYYY-MM-DD-NN-slug>/findings.md
• <out-dir>/<YYYY-MM-DD-NN-slug>/README.*
• <out-dir>/<YYYY-MM-DD-NN-slug>/opencode-run.log

If no URLs and no --input are provided, example.md is used when it exists.

Publishing

The package is intended for npm distribution as sandcode.

Release automation, dist-tags, verification, and rollback notes live in RELEASE.md.

Development

bun install
bun run check
bun run typecheck
bun test
bun run build