[qybaihe]

PR intent

• Adds a reusable, generalized pattern (not a product announcement).
• One pattern per PR.

Reviewer checklist

• Problem, Solution, and Trade-offs are clearly documented.
• No marketing language or calls to action in the PR description or diff content.
• The pattern is not tied to a single brand as its primary value proposition.
• Public references are included; if self-referencing, additional context from third-party or non-affiliated sources is provided when available.
• Conflict-of-interest disclosures are included where applicable.

What this adds

A pattern for parallel sub-agents that share a board. Instead of broadcasting everything or reporting only to the parent, a small judge answers three narrow questions: is this message news for the others, does this note matter to this particular sibling, and does a new note overturn an earlier one. An overturned note becomes a correction for everyone who received it.

The closest existing patterns are Board-Mediated Async Inter-Agent Coordination, which routes by explicit addressing, and Non-Generative Judgment Routing, which is about sending single decision steps to a judge. This one is about what crosses between agents, and how a retraction follows the note it retracts.

Conflict of interest

The implementation I reference is my own project, mu. That is stated in authors, based_on and Known implementations, and Hearsay-II is cited as the non-self reference for the blackboard idea.

AI assistance

Claude (Anthropic), through Claude Code, drafted the pattern and this description. I read the draft, asked for a plainer rewrite, and approved this version. What the pattern describes was checked against the public README ("The hive") and packages/kyrn-judge/src/decisions/hive.ts. The commit carries an Assisted-by: trailer.

[vercel]

@qybaihe is attempting to deploy a commit to the nkkko's projects Team on Vercel.

A member of the Team first needs to authorize it.

[nibzard]

Merged — thank you. I regenerated the catalog data (bun run build:data) and rebased onto current main, since the generated files under apps/web/public/ must ship with the pattern file. The pattern content itself was unchanged.

🤖 Generated with Claude Code