BUILD RECORD 02Open source2026

Snapshot

Controlled parallel workspaces for AI coding agents, with explicit review, deterministic merges, and recovery.

CreatorCreator · CLI architecture and safety modelWorking CLI with multiple workspace backends
PRIMARY EVIDENCE

The work, not a mockup.

Snapshot terminal preflight and parallel workspace capture

Snapshot terminal preflight and parallel workspace capture
terminal capture1200 × 720APPROVED PUBLIC MEDIA
ARCHITECTURE

AI ↔ TOOLING

01AI
02TOOLING
01 / OVERVIEW

What exists.

Snapshot lets several agents work against one codebase without sharing one unstable directory. Each workspace remains inspectable, reviewable, mergeable, and recoverable.

02 / PROBLEM + CONSTRAINT

Where it resisted.

Parallel agent output creates speed and uncertainty simultaneously. Workspace creation, conflicts, approvals, and rollback need to remain understandable under failure.

03 / INTERVENTION

What I changed.

I placed worktrees, APFS copy-on-write clones, and overlay backends behind one workflow with preflight checks, persisted reports, interactive review, and dedicated repair commands.

DIFFICULT DECISION

The obvious implementation was not the product.

Use several storage substrates behind one strict workflow instead of making the fastest backend the product contract.

Current proof

03
  1. Supports worktree, APFS copy-on-write, overlay, and automatic backend selection.
  2. Includes merge-many, preflight, review artifacts, and explicit conflict reports.
  3. Provides doctor, repair-mounts, unlock, and revert recovery paths.
LESSONS

What this build changed.

Acceleration is only useful when a person can still understand, approve, reject, and undo the result.

BUILD MATERIALS

The implementation surface.

01Bun02TypeScript03Git04APFS05TUI
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