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plot_sign

Place a photorealistic 3D monument sign with your exact text (price, area, SOLD) onto a photo of an empty plot, matched to perspective and lighting. Costs credits from the user's Pixly balance.

Input Schema

NameRequiredDescriptionDefault
lookNoSign material/style; defaults server-side
textYesSign label, verbatim — a price ("$1,200,000"), area ("800 m²"), or short word ("SOLD")
r2PathNoStorage path of a photo already in the user's Pixly library (from list_library, or returned by an upload ticket) — the alternative to imageUrl.
imageUrlNoPublic https URL of the source photo, or a data: URI. Either imageUrl or r2Path is required.
listingIdNoA property folder (from list_listings or create_listing) to put the result in. Results of a photo that is already in a folder go there by themselves.
orientationNoLetter orientation (letter looks only); defaults server-side

Output Schema

NameRequiredDescriptionDefault
jobsNoSeveral jobs at once (get_job with jobIds, or a plan's steps): each one's jobId, status and results
noteNo
typeNo
errorNo
jobIdYesPass to get_job to poll
quoteNoPresent when status is "awaiting_confirmation": nothing ran and nothing was charged yet — the price and settings the user is asked to confirm
statusYespending | processing | completed | failed — anything not completed/failed is still running
createdAtNo
resultUrlsNoPresent when completed; valid 7 days
completedAtNo
resultPathsNoStorage path of each result — pass one as r2Path (or beforeR2Path, a photos[] item) to run another tool on this result
creditsChargedNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • addedInput schema / properties / listingId
      Added value: +{
      +  "description": "A property folder (from list_listings or create_listing) to put the result in. Results of a photo that is already in a folder go there by themselves.",
      +  "type": "string"
      +}
    • addedOutput schema / properties / jobs
      Added value: +{
      +  "description": "Several jobs at once (get_job with jobIds, or a plan's steps): each one's jobId, status and results",
      +  "items": {
      +    "type": "object"
      +  },
      +  "type": "array"
      +}
  2. Changed1 schema field changed
    • addedOutput schema / properties / quote
      Added value: +{
      +  "description": "Present when status is \"awaiting_confirmation\": nothing ran and nothing was charged yet — the price and settings the user is asked to confirm",
      +  "type": "object"
      +}
  3. Changed1 schema field changed
    • addedOutput schema / properties / resultPaths
      Added value: +{
      +  "description": "Storage path of each result — pass one as r2Path (or beforeR2Path, a photos[] item) to run another tool on this result",
      +  "items": {
      +    "type": "string"
      +  },
      +  "type": "array"
      +}
  4. Changed1 schema field changed
    • changedInput schema / properties / r2Path / description
      Previous value: -"R2 object path from an upload ticket (the create_upload_ticket tool, or POST /api/v1/uploads over REST) — the alternative to imageUrl when the photo is a local file."New value: +"Storage path of a photo already in the user's Pixly library (from list_library, or returned by an upload ticket) — the alternative to imageUrl."
  5. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "properties": {
      +    "completedAt": {
      +      "type": "string"
      +    },
      +    "createdAt": {
      +      "type": "string"
      +    },
      +    "creditsCharged": {
      +      "type": [
      +        "number",
      +        "null"
      +      ]
      +    },
      +    "error": {
      +      "type": "string"
      +    },
      +    "jobId": {
      +      "description": "Pass to get_job to poll",
      +      "type": "string"
      +    },
      +    "note": {
      +      "type": "string"
      +    },
      +    "resultUrls": {
      +      "description": "Present when completed; valid 7 days",
      +      "items": {
      +        "type": "string"
      +      },
      +      "type": "array"
      +    },
      +    "status": {
      +      "description": "pending | processing | completed | failed — anything not completed/failed is still running",
      +      "type": "string"
      +    },
      +    "type": {
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "jobId",
      +    "status"
      +  ],
      +  "type": "object"
      +}
  6. Changed1 schema field changed
    • changedInput schema / properties / r2Path / description
      Previous value: -"R2 object path from an upload ticket (POST /api/v1/uploads) — the alternative to imageUrl when the photo is a local file."New value: +"R2 object path from an upload ticket (the create_upload_ticket tool, or POST /api/v1/uploads over REST) — the alternative to imageUrl when the photo is a local file."
  7. First observed

TDQS

A4/5.0
Behavior4/5

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

Annotations already cover the mutation/safety profile (readOnly=false, destructive=false, non-idempotent). The description adds a genuinely useful behavioral fact beyond them: it consumes credits from the Pixly balance, which tells the agent this is a paid operation. It does not, however, note that re-runs would re-charge (non-idempotent).

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 tight sentences with no filler; the visual action is front-loaded and the billing note follows. Every clause carries information.

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?

With an output schema present, return values need no explanation, and the billing disclosure plus rich schema make the definition nearly complete for a 6-param tool. The one gap is the absence of any when-to-use / routing guidance among the many sibling image tools.

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 parameters are fully documented in the schema. The description only echoes the text parameter with examples (price, area, SOLD), adding no meaning beyond what is already there, so the baseline 3 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?

Specific verb ("Place") plus a concrete resource ("photorealistic 3D monument sign with your exact text") applied to a defined input ("a photo of an empty plot"). This clearly separates it from sibling tools like watermark_photos, virtual_staging, or restyle_room.

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 implies the context (an empty-plot photo) but never states when to choose this tool over alternatives such as virtual_staging or edit_staged_photo, nor any prerequisites for the source image. Usage is inferable but not guided.

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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