AdsAgent — Meta Ads MCP

operations_confirm_adset_bid

DestructiveIdempotent

Run the change the user just confirmed in this conversation: set the bid amount of one Meta ad set from the current amount to the approved amount. Requires approval_ref and expected_plan_digest

Input Schema

Name	Required	Description
`currency`	No	Account currency code shown in the approval.
`new_value`	No
`old_value`	No
`entity_name`	No
`approval_ref`	Yes
`expected_plan_digest`	Yes

Output Schema

Name	Required	Description	Default
`message`	No
`retryable`	No
`support_ref`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed5 schema fields changedOct 23, 2026

removedInput schema / properties / connection_context

Removed value: -{
-  "pattern": "^mctx_v1_[0-9a-f]{64}$",
-  "type": "string"
-}

addedInput schema / properties / currency

Added value: +{
+  "description": "Account currency code shown in the approval.",
+  "type": "string"
+}

addedInput schema / properties / entity_name
```
Added value: +{
+  "type": "string"
+}
```

addedInput schema / properties / new_value

Added value: +{
+  "type": [
+    "string",
+    "number",
+    "boolean",
+    "object",
+    "array"
+  ]
+}

addedInput schema / properties / old_value

Added value: +{
+  "type": [
+    "string",
+    "number",
+    "boolean",
+    "object",
+    "array",
+    "null"
+  ]
+}

Changed2 schema fields changedOct 18, 2026
- changedInput schema / properties / approval_ref / maxLength
```
Previous value: -25New value: +38
```
- changedInput schema / properties / approval_ref / pattern
```
Previous value: -"^appr_[0-9a-f]{20}$"New value: +"^(?:appr_[0-9a-f]{20}|batch_[0-9a-f]{32})$"
```
Changed6 schema fields changedOct 15, 2026
- addedOutput schema / else / then / properties / category
```
Added value: +{
+  "type": "string"
+}
```
- addedOutput schema / else / then / properties / expected
```
Added value: +{
+  "type": "boolean"
+}
```
- addedOutput schema / else / then / properties / failure_kind
```
Added value: +{
+  "type": "string"
+}
```
- addedOutput schema / else / then / properties / responsibility_hint
```
Added value: +{
+  "type": "string"
+}
```
- addedOutput schema / else / then / properties / route
```
Added value: +{
+  "type": "string"
+}
```
- addedOutput schema / else / then / properties / user_visible
```
Added value: +{
+  "type": "boolean"
+}
```
Changed1 schema field changedOct 13, 2026
- addedInput schema / properties / connection_context
```
Added value: +{
+  "pattern": "^mctx_v1_[0-9a-f]{64}$",
+  "type": "string"
+}
```
AddedOct 9, 2026

TDQS

A4/5.0

Behavior4/5

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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=false. The description adds useful safety context beyond annotations: this executes a previously confirmed change and requires approval artifacts, though it does not discuss failure modes or reversibility.

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?

The description is two front-loaded sentences with no filler. It states the action and the approval requirement immediately.

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

Completeness3/5

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

For a destructive confirmation tool, it covers the core execution context, required approval tokens, and target resource. However, with only 17% schema coverage and several undocumented optional parameters, it is not fully complete enough to guide correct parameter use without opening the schema.

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

Parameters2/5

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

Schema description coverage is very low at 17%, so the description must compensate, but it only repeats the two required parameters and vaguely refers to current/approved amounts. It leaves currency, old_value, new_value, and entity_name unexplained.

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

Purpose5/5

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

The description gives a specific verb and resource: set the bid amount of one Meta ad set from the current amount to the approved amount. That resource/field specificity distinguishes it from siblings like operations_confirm_adset_budget and operations_confirm_adset_status.

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

Usage Guidelines4/5

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

It clearly states this is for running a change the user has just confirmed in the conversation and requires approval_ref and expected_plan_digest. That gives a strong when-to-use signal, though it does not explicitly name prepare/deny alternatives or state when not to call it.

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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