# Opcode

A Claude Code desktop interface with checkpoints and custom agent definitions.

Revision: 2026-09-13.4 · Review: unreviewed

Commissioned by a Nimbalyst maintainer; not an independent comparison.

## Applicability

Repository documentation at 70c16d8a4910db48cd9684aeacdd431caefd7d71; Unpinned public documentation and/or pinned README sections reviewed 2026-09-13; per-claim source scope applies.. Documentation review only.

## Claims

- **yes · documented**: Searches and resumes previous Claude Code sessions. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Defines custom agents with system prompts. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Manages and tests MCP server connections. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Creates and restores session checkpoints. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Shows diffs between checkpoints. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Edits project CLAUDE.md files. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Selects among available Claude models. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Documents per-agent file and network access controls. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Documentation claim for the cited product surface; not runtime-tested. See source locator and dossier limitations.
- **yes · documented**: Forks conversations from existing checkpoints. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Checkpoint-based session branches. Documentation only; not runtime-tested.
- **yes · documented**: Reports Claude API usage and cost by model, project and date. [Opcode · readme](https://github.com/winfunc/opcode/blob/70c16d8a4910db48cd9684aeacdd431caefd7d71/README.md) Scope: Usage dashboard; usage alerts are described as coming soon, not shipped. Documentation only; not runtime-tested.

## Open questions

- README says release executables will be published later; source-build feasibility needs testing.
- Separate agent processes do not establish filesystem isolation.

## Verification plan

1. Pin a product release or repository commit and record the host environment.
2. Create a disposable repository with a passing baseline test.
3. Run a bounded change with two agents where supported; record permissions and logs.
4. Record a failed attempt, actual outcome, and artifacts without secrets.
5. Have another person reproduce the result before labeling it reproduced.

Last checked: 2026-09-13. Recheck by: 2026-10-13.

Content rights: Unlicensed prototype; redistribution decision pending.