vivac
io.github.JAAvila-Of/vivac
About vivac
vivac is an MCP server published by the GitHub account JAAvila-Of. Provenance tree for coding agents: where you are, why, and what was already decided
It runs on your own machine: your AI client starts it from the cargo package vivac at version 0.21.0.
It asks for no keys or passwords.
Version 0.21.0 was published on 21 October 2026, and the source code is public, so you can read it before installing.
Written from the registry entry. 7 automated checks on registry metadata: 3 pass, 1 warn, 0 fail, 3 info. How we check.
What it asks for
This server declares no environment variables, so it asks for no keys or settings.
Checks
| Check | Result | Detail |
|---|---|---|
| Source repository linked | Pass | https://github.com/JAAvila-Of/vivac |
| Version pinned | Pass | Every package has an explicit version |
| Secrets requested | Info | Asks for no secrets |
| Known package registry | Warn | Unrecognized registry: cargo |
| Namespace ownership | Info | Name verified via GitHub account JAAvila-Of |
| Registry text aimed at the AI | Pass | Description and settings contain no hidden characters or instructions to the AI |
| Code red flags | Info | cargo packages are not read yet |
Popularity & health: 51 / 100
Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.
0 forks, 299 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.
What people say
No Hacker News threads link to its source code.
Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.
Facts
| Registry name | io.github.JAAvila-Of/vivac |
|---|---|
| Publisher | GitHub account JAAvila-Of |
| How the name is verified | Name verified via GitHub account JAAvila-Of. The registry ties the name prefix to that account or domain; it does not check the code. |
| Type | Local: runs on your machine from a package |
| Packages | cargo vivac 0.21.0 (stdio) |
| Version | 0.21.0 |
| Published | |
| Last updated | |
| Source repository | https://github.com/JAAvila-Of/vivac |
| Website | None linked |
| Category | Coding & design (assigned by keyword rule, not by hand) |
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