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Add MCP S3 Browser extension for S3, Garage, and SeaweedFS browsing #5688

@Bnjoroge1

Description

@Bnjoroge1

Summary

I built a new Zed MCP extension called MCP S3 Browser and would like to add it to the Zed extensions registry.

Repository: https://github.com/Bnjoroge1/mcp-s3-browser

What it provides

MCP S3 Browser adds S3-aware browsing and inspection workflows to Zed for:

  • AWS S3
  • Garage
  • SeaweedFS
  • other S3-compatible object stores

It is designed to work with both local and remote Zed projects through project-scoped configuration in .zed/settings.json.

Current tool support includes:

  • listing configured connections
  • listing buckets
  • listing objects with pagination
  • searching object keys
  • inspecting object metadata
  • previewing text objects

Why this is useful

Zed does not currently ship an S3 browser, and object storage is a common part of remote development environments and self-hosted infra workflows.

One motivating use case is browsing a Garage deployment running in Docker on a remote VM opened through Zed Remote Development.

Validation

The extension repository currently includes:

  • CI for npm run check and cargo check --target wasm32-wasip2
  • a checked-in bundled runtime file needed by the extension at runtime
  • a dev-installable Zed extension manifest

If this looks good, I can open the corresponding PR to add the extension submodule and registry entry.

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