ccMarvin vs Keyhole

Marvin watches every company you back, private or public, and delivers the signals that matter: exec changes, acquisitions, product releases, funding rounds. Straight to...

Hand your AI coding agent a reference to a secret instead of the value. keyhole opens a localhost form, stores the secret, and gives the agent only a retrieve command.

About ccMarvin

Marvin watches every company you back, private or public, and delivers the signals that matter: exec changes, acquisitions, product releases, funding rounds. Straight to your inbox. Research, summaries, planning help, and life analysis, delivered to your inbox. 2026-09-07, Teased the Grok 5 training run, "biggest cluster yet", and said the Cybercab line is running ahead of schedule. 2026-09-06, Essay follow-up: interpretability results are moving into production Claude models.

About Keyhole

Hand your AI coding agent a reference to a secret instead of the value. keyhole opens a localhost form, stores the secret, and gives the agent only a retrieve command. ↑ pick a destination, the reference the agent gets updates live, the value never does. It runs keyhole NAME instead of asking you to paste a key into the chat.