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io.github.jdhart81/ghg-ledger

by jdhart81 · remote · no sign-in to list tools · v0.1.0 · published by GitHub user jdhart81

Deterministic Scope 1/2/3 GHG inventories with bundled factors and audit hashes.

Changes · 3
CompareRegistry entry

6 tools: 3 change things and 3 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 ghg-ledger https://mcp.viridisconservation.com/ghg-ledger/mcp

Tools

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

6 tools

Changes things 3Claude Code: ask
  • calculate_inventoryCalculate an auditable GHG inventory from explicit activity records.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
    Calculate an auditable GHG inventory from explicit activity records. Returns per-line gas/CO2e results, Scope 1/2/3 and category rollups, dual Scope 2 reporting, indeterminate lines, factor lineage, notary payload, and an offset-clearinghouse dry-run weave. This is calculation, not advice. Price: $1.00 per call after 10 free calls/day. Pay at /x402/ghg-ledger/calculate_inventory with Base USDC, cash-fund payment_ref through escrow_checkout + confirm_escrow_funding, or use /seats.
  • classify_activitySuggest scope and Scope 3 category from the bundled deterministic map.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
    Suggest scope and Scope 3 category from the bundled deterministic map. No inference is used; unknown activity types return no suggestion.
  • verify_resultRecompute a prior inventory's audit hash and conservation checks.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
    Recompute a prior inventory's audit hash and conservation checks. Pass the prior result object as JSON; tampering or stale factor lineage is flagged.
Only reads 3Claude Code: allow
  • describe_agentReturn fleet-standard capabilities, version, pack digest, and pricing.No findings

    Why it is in this group

    • The name "describe_agent" says "describe": a word for reading.
    Description, as the server wrote it
    Return fleet-standard capabilities, version, pack digest, and pricing.
  • get_factor_packReturn factors, GWP values, conversions, sources, and pack SHA for one exact bundled region/year.No findings

    Why it is in this group

    • The name "get_factor_pack" says "get": a word for reading.
    Description, as the server wrote it
    Return factors, GWP values, conversions, sources, and pack SHA for one exact bundled region/year. No nearest-region or nearest-year substitution.
  • list_factor_packsList the bundled pack version/digest, supported regions and years, activity types, GWP set, and explicit MVP coverage.No findings

    Why it is in this group

    • The name "list_factor_packs" says "list": a word for reading.
    Description, as the server wrote it
    List the bundled pack version/digest, supported regions and years, activity types, GWP set, and explicit MVP coverage.

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 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http ghg-ledger https://mcp.viridisconservation.com/ghg-ledger/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__ghg-ledger__list_factor_packs",
      "mcp__ghg-ledger__get_factor_pack",
      "mcp__ghg-ledger__describe_agent"
    ],
    "ask": [
      "mcp__ghg-ledger__calculate_inventory",
      "mcp__ghg-ledger__classify_activity",
      "mcp__ghg-ledger__verify_result"
    ],
    "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 ghg-ledger. Review it before you use it.