What is mefisto?
mefisto is a Claude Code mod by augusto-romero-arango that harness opinionado de Claude Code para construir aplicaciones serverless en Azure con Event Driven Architecture, Event Sourcing (Marten + Wolverine), Postgres y .NET 10. Incluye pipelines. It is listed under Agents & automation and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | augusto-romero-arango |
| Repository | augusto-romero-arango/eda-evsourcing-azure-harness |
| Popularity | no public popularity data yet |
| Category | Agents & automation |
| Security | High risk (44/100) |
| Rank | #2,675 of 5,272 Claude Code mods; #201 in Agents & automation |
| License | Apache-2.0 |
| Last commit | 2026-10-16 |
| Hooks | 7 events |
| Sees | Bash calls, every prompt, every tool call |
| Draws on | AbovePrompt, Pane |
Is mefisto safe to install?
mefisto scores 44/100 on the MCPMods security check: High risk. Things to review: starts processes outside the sandbox; writes files or config; reads environment variables; watches every prompt or event. It passed 2 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts processes outside the sandbox | Review |
| Writes files or config | Review |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Validator reported problems | Note |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.agent.list | |
$.clock.after | |
$.clock.every | |
$.command.register | |
$.command.run | drives Claude |
$.env.get | reads env vars |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.write | writes files |
$.process.run | runs processes |
$.process.spawn | |
$.prompt.fill | writes the prompt box |
$.prompt.submit | drives Claude |
How do I install mefisto?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/augusto-romero-arango/eda-evsourcing-azure-harness claude plugin validate ./eda-evsourcing-azure-harness/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add augusto-romero-arango/eda-evsourcing-azure-harness && claude plugin install mefisto@augusto-romero-arango-harness
Or ask Claude to set it up
Paste this into Claude Code and it installs mefisto for you:
Install the "mefisto" Claude Code mod from https://github.com/augusto-romero-arango/eda-evsourcing-azure-harness. Run claude plugin validate on it first and show me what it can access before you enable it.
More from augusto-romero-arango/eda-evsourcing-azure-harness
This repository has 3 Claude Code mods on MCPMods.
- mefisto-divine-wager: Consola de operacion de Mefisto en la sesion de ejecucion: listos y lanzamiento, seguimiento de /mefisto-tooling y /mefi (Review before installing)
- mefisto-planner-board: Tablero del planner de Mefisto sobre el prompt: borradores en orden de refinamiento e issues listos en orden de lanzamie (Review before installing)