Compare saved MCP tool definitions

Answer the user's comparison question with the observed relation, its limits, or the first failure. This skill routes to the own-input guide.

• Read that guide from a matching kimjooyoon/gooo-go-ports checkout, or use the published native installation guide. Prefer the fixed recorded-catalog-cli-preview.2 archive when it matches the user's platform and requested setup; it needs no checkout or Go/Gooo installation. A separately installed skill includes no executable. For a source route, read the checkout's AGENTS.md and preserve existing files. Report a missing setup prerequisite instead of treating it as a comparison result.
• Prefer the user's saved pages and original tool name. Assemble the original request/response text with the guide's recipe; preserve additional pages and their order. Keep missing pages missing and carrier/extraction records separate.
• If the user wants a demonstration without their own saved pages, use the three synthetic cases. Label it a demo; it does not assess the user's server or prove SDK behavior.
• Follow the fixed-version native guide or source route. The preview.2 archive contains mcp-upgrade-regressions/ and START-HERE.txt; preview.1 lacks --definition-snapshot. Source execution needs Go 1.27.3 and no Gooo compiler bootstrap. Editing the Gooo rules is a separate source-edit task requiring new execution and replay; consuming the archive does not change those rules.
• Preserve command stderr/status and the report. Exit zero does not mean a safe upgrade: report the Gooo decision, both page coverage fields and its next action. Missing from an incomplete page set does not prove removal; a changed definition does not prove incompatibility. Do not invent host facts or authorize tool calls.
• Report whether the result answered the user's question and any unresolved point. Offer the guide's existing feedback form using public details or a synthetic reproduction; keep private captures local. Do not submit automatically.

For a request to replace an entire catalog after refresh, use the Go module in the catalog refresh example. Follow its pinned public-module recipe for consumption; a matching source checkout is needed when editing the Gooo rules. Native preview.2 does not contain this transaction. The selected-row comparison cannot authorize whole-catalog replacement. That example uses a separate Gooo decision and local commit receipt; it does not collect live pages or grant permission to invoke retained tools.