feat(mcp): annotate tools with read-only/destructive hints#126
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Derive MCP tool annotations from tRPC procedure type (query → readOnly, mutation → not) and method name (delete*/remove* → destructive), with per-procedure overrides via .meta(). Lets MCP clients group/badge tools by category instead of treating every tool the same. Also bumps useSortedClasses from warn to error (fix already safe). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
ToolAnnotationsfrom each tRPC procedure's_def.typeand method name so clients (Claude.ai connector UI, Cursor, etc.) can group/badge tools as read-only vs writes vs destructive.query→readOnlyHint: true;mutation→readOnlyHint: false;delete*/remove*mutations →destructiveHint: true;openWorldHint: false(we only touch our own DB)..meta({ readOnly, destructive, idempotent, openWorld })for cases where the default is wrong.nursery.useSortedClassesfromwarn→error(fix alreadysafe); auto-sorted one preexisting class list inBarcodeScanner.tsx.Test plan
yarn checkpasses (lint + typecheck + test)recipe_listread-only,recipe_deletedestructive)/api/mcpand confirm tools surface with category badges🤖 Generated with Claude Code