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Ephemora Cell MCP — WASM Sandbox

by MichaelS1011·io.github.MichaelS1011/ephemora-cell-mcp·v1.0.3

WASM sandbox for MCP tools. WASI-isolated, fuel/memory/I/O capped, attested.

C56/100grade C
InstallIs it safe?
Grade C.Usable with care. Some checks failed or could not be verified.

Tools

Tool lists for local packages are only visible after install.

Public scan report

scanner v0.1.2 · 2026-09-17 · same rubric, same numbers if you re-run it

1 high
  • Code scan25 source files scanned13/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • Tool poisoningonly the listing description was available15/15
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancerepository not readable: github 4013/15
  • Maintainer identityno repository or website to verify2/10

Findings (1)

  • highWhole environment serialized (possible credential exfil)env.dump
    ephemora_cell-1.0.3/ephemora_cell/builder.py: …nv() -> dict: import os return dict(os.environ) …
Overall 56/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add ephemora-cell-mcp -- uvx ephemora-cell
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