6 October 2026

Sandbox work you can inspect. Lemma Ventures published how Captain Code uses NVIDIA OpenShell. You choose the sandbox path. The worker returns a patch. It does not edit your working tree. Mixed host and sandbox stages are refused. Setup and the closed upstream VM fix are on the OpenShell page.

5 October 2026

Latest release. captain leakcheck and /private keep private names out of a public repository. The sidebar names the harness and the provider. An OpenRouter leg can pin a host per band. Release notes. Security. Workflows.

4 October 2026

v0.3.6. Euclid can search files and code. An OpenShell run asks you to confirm the file list and the test command before it starts. CLI. OpenShell. Release notes.

3 October 2026

v0.3.5, and a retracted range. Plain writing is on for workers by default. /noslop turns that rule on for one turn. A 30-minute HTTP timeout no longer stops a busy OpenCode-served leg. v0.3.3 fixed a lock that froze the brain. v0.3.4 retracts v0.3.0, v0.3.1 and v0.3.2. Workflows. v0.3.5. v0.3.3.

23 September 2026

The public release. Captain Code is open source on the Lemma Ventures blog. The license and the contribution rules are on the open source page.

1 September 2026

Hosted models and replay. Yes, LLMs can be deterministic is the Lemma Ventures note on the Agentic Determinism Index. Captain uses that feed for /deterministic and /oss. The limits are on the ADI page.