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by com.getadloop
OverviewDiscussionsAdmin

Draft Reddit ad changes

update_reddit_ad

Draft changes to a Reddit ad — name, landing URL (click_url), comments on/off.

The headline and body of a live Reddit post cannot be edited; new copy means a new ad via draft_reddit_ad, with the old ad paused. Returns a preview with a plan_id showing old → new; nothing changes until confirm_and_apply executes it.

Reddit Ads API: https://ads-api.reddit.com/docs/v3/

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "ad_id": "<ad_id>"
    },
    "name": "update_reddit_ad"
  }
}

Input Schema

NameRequiredDescriptionDefault
nameNoNew ad name; empty keeps the current one.
ad_idYesReddit ad id (from get_reddit_ads).
click_urlNoNew landing URL (http:// or https://), verified to be reachable. TEXT (free-form) ads open the post itself and take no click_url.
ad_account_idNoReddit ad account id (from list_reddit_accounts). Empty uses reddit.ad_account_id from the config.
allow_commentsNotrue or false turns comments on the ad's post on or off; omitted leaves them unchanged.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changed
    • addedInput schema / properties / ad_account_id / description
      Added value: +"Reddit ad account id (from list_reddit_accounts).\nEmpty uses reddit.ad_account_id from the config."
    • addedInput schema / properties / ad_id / description
      Added value: +"Reddit ad id (from get_reddit_ads)."
    • addedInput schema / properties / allow_comments / description
      Added value: +"true or false turns comments on the ad's post on or\noff; omitted leaves them unchanged."
    • addedInput schema / properties / click_url / description
      Added value: +"New landing URL (http:// or https://), verified to be\nreachable. TEXT (free-form) ads open the post itself and take no\nclick_url."
    • addedInput schema / properties / name / description
      Added value: +"New ad name; empty keeps the current one."
  2. First observed

TDQS

A4.6/5.0
Behavior5/5

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

Annotations cover the safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=true), and the description adds value beyond that: it discloses the two-phase draft/confirm model, that a preview with a plan_id is returned showing old → new, and that no mutation occurs until confirm_and_apply. This is exactly the behavioral context an agent needs for a staging tool.

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

Conciseness4/5

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

Front-loaded with purpose, then the key constraint, then the confirm workflow — every paragraph earns its place. The trailing Reddit Ads API documentation URL is mildly extraneous but harmless as a reference.

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

Completeness5/5

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

An output schema exists, yet the description still usefully characterizes the return (preview with plan_id). Combined with the workflow and editability constraints, an agent has everything needed to call this correctly in a multi-step Reddit ad update.

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

Parameters3/5

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

Schema description coverage is 100%, so all five parameters are fully documented in the schema itself (including the TEXT-ad click_url caveat). The description restates name/click_url/comments but adds no syntax or format detail beyond the schema, so the baseline 3 for high coverage applies.

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?

States a specific verb and resource ('Draft changes to a Reddit ad') plus the editable field set (name, click_url, comments). It explicitly distinguishes itself from the sibling draft_reddit_ad by explaining that new copy requires a new ad, so an agent can route correctly without opening either schema.

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

Usage Guidelines5/5

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

Gives an explicit when-to-use-this-vs-alternative rule: editable fields go here, but headline/body edits require draft_reddit_ad plus pausing the old ad. It also states the follow-up requirement (nothing applies until confirm_and_apply), so the agent knows the full workflow.

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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