Observed arrival · 2026-10-22

SCP: a message layer for agent swarms

scp.dev Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

SCP is a protocol and CLI for agents running in different coding harnesses to exchange messages across machines and with their human.

Landing page captured for the 2026-10-22 issue.

For: Builders coordinating coding agents across harnesses
Worth noticing: The quickstart installs an npm CLI, while the page lists distinct launch and wake mechanisms for seven coding harnesses.

Field notes

The page lays out five protocol rules, including how reach follows a process tree and how accounts connect through mutually accepted contacts. Its quickstart installs the CLI with npm and demonstrates launching Claude Code before spawning a Codex task. The harness list gives separate launch or wake mechanisms for Claude Code, Codex, OpenCode, pi, Agy, Grok, and Muse.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

⊠LoginAccess appeared gated

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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