JSR Package Score Breakdown

jsr/package-score

The JSR score breakdown of one package: total points earned and, item by item, whether it has a README, README examples, documented entrypoints, documented symbols, no slow types (fast check), provenance, a description and multi-runtime support. Data from JSR, https://jsr.io, modified by Eden Engine (fields renamed and reduced); not an official JSR or Deno Land product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

JSR

Package data from JSR, the JavaScript Registry, https://jsr.io, fetched through its public API. Modified by Eden Engine: fields renamed and reduced (publisher and repository numeric ids and fields the list endpoints leave empty are dropped) and served by Eden Engine; this is not an official JSR or Deno Land product.

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Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "jsr/package-score" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "jsr/package-score" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "jsr/package-score", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "jsr/package-score", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 27, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "scope",
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]*$",
      "maxLength": 100,
      "minLength": 1,
      "description": "Package name without the scope, lower case letters, digits and hyphens. For example path, flag."
    },
    "scope": {
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]*$",
      "maxLength": 100,
      "minLength": 1,
      "description": "Scope name without the @, lower case letters, digits and hyphens. For example std, luca, deno."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "total_points",
    "entrypoints_without_docs"
  ],
  "properties": {
    "has_readme": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "The package has a README."
    },
    "total_points": {
      "type": "integer",
      "description": "Points earned. JSR scores 17 points in all (the package info score_percent is this out of 17)."
    },
    "all_fast_check": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "Every export passes fast check (no slow types)."
    },
    "has_provenance": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "Versions are published with provenance."
    },
    "has_description": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "The package has a description."
    },
    "has_readme_examples": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "The README has examples."
    },
    "documented_symbols_ratio": {
      "type": [
        "number",
        "null"
      ],
      "description": "Share of exported symbols with documentation, 0 to 1 (0.86 means 86 percent)."
    },
    "entrypoints_without_docs": {
      "type": "array",
      "items": {
        "type": "string",
        "description": "An entrypoint path."
      },
      "description": "Entrypoints without a module doc."
    },
    "all_entrypoints_documented": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "Every entrypoint has a module doc."
    },
    "multiple_runtimes_compatible": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "More than one runtime is marked compatible."
    },
    "at_least_one_runtime_compatible": {
      "type": [
        "boolean",
        "null"
      ],
      "description": "At least one runtime is marked compatible."
    }
  },
  "description": "The scoring items of a package.",
  "additionalProperties": true
}