x402image

Paste it into your assistant. It asks for the manifest, the server wiring and the skills, and for an honest account of what this record does not say. Read that second file first.

Draft an Agent Plugin (agent-plugins.org, specification 1.1.0) that wraps the
MCP server described below, so that somebody could install one thing and have
an assistant that knows when and how to use it.

An Agent Plugin is one installable unit: a `plugin.json` manifest, an
`mcp.json` that wires up the servers it needs, and a `skills/` directory
where each skill is a folder holding a `SKILL.md`. Hand back every file in
full, each under its own path, ready to save.

1. Write `plugin.json` with `$schema` exactly `https://agent-plugins.org/schemas/1.1.0/plugin.schema.json`. The name is
   1 to 64 characters of a-z, 0-9, `-` and `.`, alphanumeric at both ends, with
   no `--` and no `..` in it.

2. Write `mcp.json` wiring THIS server exactly as its record declares it. A
   remote keeps the URL and the transport type as written. A package keeps the
   registry, the identifier and the version as written. Do not invent a command,
   a port, a flag or an argument that is not in the record.

3. Every secret stays an input. No key, token, password or connection string
   belongs in either file. Declare what has to be supplied, name it, and say what
   it is for.

4. Do not invent tools. The record lists the tools it lists, and if it lists
   none then the honest plugin says the tool list was not published rather than
   guessing one from the description.

5. Skills are jobs, not tools. Write one skill per thing somebody would actually
   ask for, and inside each one say when to reach for this server, what a good
   result looks like, and what to do when it comes back empty. A skill per tool
   is a manual page with a different filename.

6. Say where it stops. Name what this plugin will not do — what it has no tool
   for, what needs a person, and what it must not be pointed at. A plugin with no
   stated edge reads as one with no edge.

7. Keep the author's own words for the description. If you would rather say it
   differently, say yours somewhere else and leave theirs where it is.

8. Record which version of the server you wrapped, and where the record came
   from, at the top of `plugin.json`'s description or in the readme. A plugin
   nobody can trace back to a version is one nobody can update.

Produce a second file alongside them, `LIMITS.md`, and treat it as the more
important of the two. The plugin is for whoever installs it. This is for
whoever has to decide whether installing it is a good idea, and that is
usually a different person who will never read the manifest.

It has three parts.

**What this is built from.** One paragraph: whose server it is, what the
record says it does, which version, and the fact that the record is all you
had. Say plainly that nobody ran it.

**What the record does not say.** One entry per gap. Whether the tool list was
published. What the server does with what it reads. What it costs. Whether it
writes anything anywhere. What credentials it will ask for and what those
credentials can reach. An unanswered question stays an unanswered question:
do not fill one in from the description or from what similar servers usually do.

**What a person has to check before trusting it.** The specific things
somebody should verify for themselves, in the order that would stop them
soonest if the answer is bad.

Write it in plain English, and do not soften it. A plugin drafted from a
directory record is a starting point to argue with, not something to install
into anything that matters.

The server record follows, exactly as the public index holds it. It is
everything I have: nobody has run this server, called a tool on it, or checked
that the address answers.

```json
{
  "server": {
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "name": "org.x402image/image",
    "description": "x402 image tools (USDC/Base): remove_background/upscale $0.02, resize/optimize $0.005; URL in/out",
    "title": "x402image",
    "version": "1.0.0",
    "websiteUrl": "https://x402image.org",
    "remotes": [
      {
        "type": "streamable-http",
        "url": "https://x402image.org/mcp"
      }
    ],
    "_meta": {
      "io.modelcontextprotocol.registry/publisher-provided": {
        "free_tools": [
          {
            "description": "Free. Returns x402image service metadata and the list of paid image tools with their per-call USD prices. No payment or input required. Call this first to discover capabilities and pricing.",
            "name": "service_info"
          }
        ],
        "payment": "x402 (USDC on Base). Call a paid tool without payment to get a 402 quote.",
        "pipeline": {
          "description": "Apply an ordered pipeline of image ops in a single paid call: one payment, one output. Price is the sum of the included ops’ prices — call without payment to get a 402 quote. Input: source (image URL), steps (ordered [{op, params}], e.g. [{\"op\":\"remove_background\"},{\"op\":\"resize\",\"params\":{\"width\":800}}]). Call service_info for the available ops and their per-op prices. Output: the processed image as a short-lived signed URL.",
          "name": "process",
          "pricing": "dynamic: sum of the included ops’ prices"
        },
        "pricing_currency": "USD",
        "service": "x402image",
        "tools": [
          {
            "description": "Remove an image's background, isolating the subject (BiRefNet AI segmentation). $0.02 per call. Input: an image via source URL. Params: background (optional fill color for the removed area, e.g. 'white'; omit for a transparent cutout — use a PNG/WebP output to keep transparency). Output: the cut-out image as a short-lived signed URL.",
            "name": "remove_background",
            "price_usd": 0.02
          },
          {
            "description": "Upscale an image with AI super-resolution (ESRGAN) for sharper enlargement. $0.02 per call. Input: an image via source URL. Params: width and/or height (target pixels; at least one required). Output: the enlarged image as a short-lived signed URL.",
            "name": "upscale",
            "price_usd": 0.02
          },
          {
            "description": "Resize or crop an image to an exact width/height. $0.005 per call. Input: an image via source URL. Params: width, height (pixels); fit (scale-down|contain|pad|squeeze|cover|crop); gravity (auto|face|left|right|top|bottom|center|entropy — focal point for cover/crop, use 'face' to keep faces); background (fill color for 'pad', e.g. 'white' or 'rgba(0,0,0,0)' for transparent). At least one of width/height is required. Output: the transformed image as a short-lived signed URL.",
            "name": "resize",
            "price_usd": 0.005
          },
          {
            "description": "Convert format and/or compress an image. $0.005 per call. Input: an image via source URL. Params: format (webp|avif|jpeg|png|gif); quality (1-100, default 85 — lower is smaller). At least one of format/quality is required. Output: the optimized image as a short-lived signed URL.",
            "name": "optimize",
            "price_usd": 0.005
          }
        ]
      }
    }
  },
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "statusChangedAt": "2026-07-16T07:40:24.07271Z",
      "publishedAt": "2026-07-16T07:40:24.07271Z",
      "updatedAt": "2026-07-16T07:40:24.07271Z",
      "isLatest": true
    }
  }
}
```

The server is listed as "x402image".