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Acknowledge or delete many inbox messages

inbox_bulk
DestructiveIdempotent

Webhook inbox pro: acknowledge (mark read) or delete many messages of an upgraded inbox at once. ack takes ids or through; delete takes through (that message and every older one).

Input Schema

NameRequiredDescriptionDefault
idsNoack only: these message ids.
actionYesack: mark read; delete: delete.
throughNoA message id.
instance_idYesThe inbox (inb_...).
passport_tokenNoYour amp_ token, only if you have no app sign-in and cannot send a header.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • addedInput schema / examples
      Added value: +[
      +  {
      +    "action": "ack",
      +    "instance_id": "inb_exampleexampleexample2",
      +    "through": 42
      +  }
      +]
    • changedInput schema / properties / passport_token / description
      Previous value: -"Your amp_ token, only if your app has no sign-in and cannot send it as an Authorization header."New value: +"Your amp_ token, only if you have no app sign-in and cannot send a header."
  2. Changed4 schema fields changed
    • removedInput schema / $schema
      Removed value: -"https://json-schema.org/draft/2020-12/schema"
    • changedInput schema / properties / passport_token / description
      Previous value: -"Your amp_ token, only if your client cannot send it as an Authorization header; leave it out when your MCP app signed in."New value: +"Your amp_ token, only if your app has no sign-in and cannot send it as an Authorization header."
    • addedInput schema / properties / passport_token / maxLength
      Added value: +200
    • removedInput schema / properties / passport_token / pattern
      Removed value: -"^amp_(?:s_)?[A-Za-z0-9_-]{43}$"
  3. Added

TDQS

A3.9/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is covered. The description adds meaningful beyond-annotation behavior: delete is range-based and removes the target message plus every older one, and the operation requires an 'upgraded inbox' (pro).

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two compact sentences, front-loaded with the action/resource, followed by the critical range semantics for delete. No filler and no repetition of schema or annotation content.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Complete for a bulk mutation tool with annotations covering safety and a 100%-covered schema: the description covers scope, prerequisite, and destructive range behavior. Minor gaps remain around partial-failure behavior or return values, but no output schema exists and these are secondary.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline is 3. The description adds real meaning beyond the schema's terse 'A message id' by explaining that ack accepts ids or through, delete accepts only through, and through is an inclusive range boundary covering older messages.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb set (acknowledge or delete) and resource (many inbox messages) and makes the bulk scope explicit with 'many messages ... at once.' It does not explicitly name the single-message siblings inbox_ack/inbox_delete, but the bulk distinction is still clear from the text.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives useful in-tool guidance for choosing between ack and delete (including that delete covers the target message and every older one). It does not say when to use this bulk tool versus the sibling inbox_ack or inbox_delete tools, leaving tool selection partly implied.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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