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Steel Brain

by dryow1 · remote · local (oci) · no sign-in to list tools · v1.1.0 · published by GitHub user dryow1

Trade-verified steel grade properties, substitution verdicts, and mill-cert guidance for AI agents.

Changes · 2
CompareRegistry entry

3 tools: 2 change things and 1 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http steel-brain https://api.steelbrain.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Changes things 2Claude Code: ask
  • cert_guideWhich mill cert type applies for a grade + use case (e.g.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Which mill cert type applies for a grade + use case (e.g. EH36 shipbuilding), and what fields to check on the cert.
  • substitution_checkCheck if one steel grade can substitute another for a given application (machined / welded-structural / pressure).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Check if one steel grade can substitute another for a given application (machined / welded-structural / pressure). Returns verdict + reasoning from verified trade rules.
Only reads 1Claude Code: allow
  • grade_lookupLook up a steel grade: properties, chemistry, forms, applications, weldability.No findings

    Why it is in this group

    • The name "grade_lookup" says "lookup": a word for reading.
    Description, as the server wrote it
    Look up a steel grade: properties, chemistry, forms, applications, weldability. Aliases accepted (e.g. 4140 = 42CrMo4 = SCM440).

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http steel-brain https://api.steelbrain.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__steel-brain__grade_lookup"
    ],
    "ask": [
      "mcp__steel-brain__substitution_check",
      "mcp__steel-brain__cert_guide"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as steel-brain. Review it before you use it.