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Block task

block_task
WriteIdempotent

What it does

Mark a task as blocked by another: it won't show up in list_my_tasks (the ready queue) until the blocker is done. Rejects self-blocking and circular chains.

Parameters

NameTypeRequiredDescription
idstringRequired
blocked_by_idstringRequired

Annotations

The hints the server sends with this tool. A host reads them to decide whether to ask you before a call.

Read-onlyreadOnlyHint: false
Changes data in your Done account.
DestructivedestructiveHint: false
Only adds or reads; nothing already there is removed or overwritten.
IdempotentidempotentHint: true
Calling it twice with the same arguments leaves the same result as calling it once.
Open worldopenWorldHint: false
Touches only your own Done account.

Which tokens can call it

A connection made with OAuth has full access. A token from Settings → Agent access → Extra MCP tokens can be narrowed, and a narrowed token never sees beyond its project or workspace.

  • Full accessAllowed
  • Read-only tokenRefused
  • Single-project tokenRefused
  • Single-workspace tokenAllowed

Try it

With Done connected, ask your assistant something like:

“The launch post can't start until the screenshots are done. Mark it as blocked by them.”

Connect Done to your assistant

One MCP endpoint per account, over OAuth or a token. Step-by-step setup for each client:

MCP setup overview →