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concordia-protocol

Structured negotiation protocol for autonomous agents. Gives your agent binding commitments, multi-attribute offers (basic, partial, conditional, bundle), session receipts…

Plugin bundle · by eriknewton

About

concordia-protocol is a plugin bundle for AI coding tools published by eriknewton. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-12.

In its own words, on Claude Code: claude-plugins-community:

Structured negotiation protocol for autonomous agents. Gives your agent binding commitments, multi-attribute offers (basic, partial, conditional, bundle), session receipts, portable reputation, and agent discovery — all as MCP tools. Supports a six-state session lifecycle with Ed25519-signed, hash-chained message transcripts.

What it asks for

  • Installs as a plugin bundle

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Connect

No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.

Check its listing on Claude Code: claude-plugins-community

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Claude Code: claude-plugins-community (Open the source on GitHub) Listed 0.1.0 Forks (GitHub): 0
Stars (GitHub): 6
Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What the bundle contains

As published on Claude Code: claude-plugins-community.

MCP servers: 1

  • concordia

Skills: 1

  • concordia

What changed

Nothing has moved on this plugin since we started watching it.

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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

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Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built