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derekslinz

meta-data-mcp

by derekslinz

Create Plugin

opendata_plugins_create

Create a new plugin from a YAML spec to add an open data source to the registry. Use this after drafting the spec when no existing provider matches. Tools become available immediately.

Instructions

Autonomously create a new plugin for this meta-data-mcp server from a YAML spec. Use this when opendata_providers_find returned no match. Recommended flow: first call opendata_plugins_draft with structured fields to get a valid YAML spec, then pass it here. The new plugin is materialized to disk, imported, registered in the live registry, and its tools become available immediately.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
domainsNoRegistry domains for the new plugin (e.g. ['security']). Use `opendata_domains_list` to see existing values, but new domain names are allowed.
regionsNoRegistry regions for the new plugin (e.g. ['global', 'us']). Use `opendata_regions_list` to see existing values.
keywordsNoSearch keywords that should match this plugin.
spec_yamlYesFull YAML spec for the new plugin. Must include id, server_name, base_url, description, homepage, and at least one tool. See tools/specs/example_weather_alert.yaml for the canonical form.
license_noteNoOptional short licensing/attribution note for the data source.
requires_envNoNames of any environment variables the new plugin needs (e.g. API keys). Leave empty for keyless APIs.
Behavior4/5

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

Annotations only provide destructiveHint: false. The description adds value by detailing the effects: plugin materialized to disk, imported, registered, tools become available immediately. Could be more explicit about error handling, but is sufficient.

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 concise and well-structured: purpose first, then usage condition, then recommended flow, then effects. No unnecessary words. Every sentence adds value.

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?

Given the complexity of creating a plugin, the description covers the main workflow and effects. It references the draft tool for spec generation. Missing some details on error handling or schema requirements, but those are in the parameter descriptions. Adequate for an AI agent.

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 coverage is 100%, so baseline is 3. The tool description does not add parameter-specific meaning beyond what the schema provides, but the schema itself is well-documented. No additional value needed.

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 clearly states it creates a new plugin from a YAML spec. It distinguishes itself from siblings by specifying when to use it (when opendata_providers_find returned no match) and recommending a flow involving opendata_plugins_draft.

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?

Explicitly states 'Use this when opendata_providers_find returned no match' and recommends a 'Recommended flow' with opendata_plugins_draft, providing clear when-to-use and how-to-use guidance.

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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