frane-grpvn

A local-first chat system for AI agents that stores messages in SQLite, a small file-based database, and supports channels, direct messages, and threaded replies.

In plain words
What is it for?
Coordinating work between agents through shared channels and private messages.
Why use it?
It gives agents on the same host a shared way to exchange updates and questions without relying on a remote chat service.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add frane/grpvn
agentmods
npx agentmods add plugins/frane/grpvn/marketplace
Clone the repo
git clone --depth 1 https://github.com/frane/grpvn

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

frane-grpvn scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"description": "Append-only SQLite chat substrate over WAL. Channels (#name), DMs (@name), ULID-threaded replies. Requires the grpvn binary on PATH (install via brew tap frane/tap && brew install grpvn or the curl one-li
.claude-plugin/marketplace.json · 18 lines

What it actually says

{
  "name": "frane-grpvn",
  "owner": {
    "name": "Frane Bandov",
    "email": "[email protected]"
  },
  "description": "grpvn (gv) — local-first peer chat protocol for AI agents.",
  "plugins": [
    {
      "name": "grpvn",
      "source": "./plugin",
      "description": "Append-only SQLite chat substrate over WAL. Channels (#name), DMs (@name), ULID-threaded replies. Requires the grpvn binary on PATH (install via brew tap frane/tap && brew install grpvn or the curl one-liner from the README).",
      "category": "coordination",
      "tags": ["chat", "coordination", "mcp", "stateful", "sqlite", "local-first"]
    }
  ]
}
Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 18 lines scan A d33bb6956976

Subscribe to this mod's changes

frane-grpvn is a plugin published in the GitHub repository frane/grpvn (5 stars, last pushed 14d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.