build-mcpb

build-mcpb is an MCP server development skill for AI agents, published by LepistaBioinformatics in the mycelium repository on GitHub. Skillspace rates build-mcpb C (72/100) and the safety scan flagged it for review; the rating is based on static analysis only.

This skill should be used when the user wants to "package an MCP server", "bundle an MCP", "make an MCPB", "ship a local MCP server", "distribute a local MCP", discusses ".mcpb files", mentions bundling a Node or Python runtime with their MCP server, or needs an MCP server that interacts with the local filesystem, desktop apps, or OS and must be installable without the user having Node/Python set up.

Grade
C
Quality
72 / 100
Safety
Needs review
GitHub stars
22

Unproven: rated by static analysis only, not yet compared head-to-head.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubLepistaBioinformatics/mycelium

Our review

Architecture
100 / 100
Maturity
Structured: ships references or scripts
Security scan
Medium-risk patterns
License
Not declared. Check the repository before reusing it.
Adoption
Adopted by 38 other repositories, in 4 collections
Scope
Vendor-specific: built around one product. Packaging MCP servers as MCPB bundles, a public format

What the scanner flagged

  • reads environment variables

Not checked yet

  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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