Add event attachment and dropped-events commands #1886

Part of #1357 and #1382 (CLI parity with the MCP). Plan: cli-first-mcp task 2.4 (parity table, tasks).

Under the CLI-first plan the MCP runs CLI commands instead of its own catalog tools, so every catalog tool needs a command before the catalog can go. New commands call the API through @sentry/api operations. They don't wait for the client move (#1875).

Gaps

event attachment download writes a file, so it is stdio-only; list is exposed. Related: #1267 (the MCP tool returns empty bodies today).

Done when

• The commands land with unit tests, and their parity-table rows in the design are ticked.
• Each command has a permission class and exposure (Add a permission class and an MCP exposure to every CLI command #1880), if that has landed.

via @BYK.

--

View Session in Sentry