Npcink Abilities Toolkit

Npcink Abilities Toolkit helps a WordPress site expose, review, and safely inspect Abilities API capabilities for AI hosts and clients.

The admin page is built for site operators first. It shows whether the site’s ability package is working, which abilities are available, which abilities are read-only, and which write-like abilities require host approval.

For developers and host runtimes, the plugin also provides ability registration helpers, category helpers, schema normalization, annotation normalization, REST discovery values, and optional canonical projection for Npcink AI when Npcink AI is installed.

It can be used by any WordPress plugin or client that consumes the WordPress Abilities API. Npcink AI is one optional consumer, not the owner of this plugin.

It does not run AI models, execute workflows, route prompts, contact model providers, manage billing or quotas, own MCP governance, or approve final WordPress writes.

Read-only host composition recipe metadata may document how hosts can compose abilities, but those records do not run queues, schedule jobs, execute workflows, or create a second registry.

Host composition recipe metadata is available through read-only helpers and Abilities API discovery abilities for hosts that need catalog discovery without execution ownership.

External Services and Remote Requests

This plugin does not automatically contact Npcink AI, model providers, analytics services, tracking services, or cloud services.

Some abilities can prepare request payloads for a separate host or cloud add-on, but this plugin does not send those payloads to an external service by itself.

The npcink-abilities-toolkit/upload-media-from-url ability can download a media file from a URL provided by an authenticated caller when an approved host runtime commits that ability. In that case WordPress sends an HTTP request to the caller-provided URL in order to fetch the media file for the local media library. The remote endpoint is chosen by the caller, not by this plugin.

Requirements

• WordPress 7.0 or later. This release intentionally targets the WordPress Abilities API baseline available in WordPress 7.0+.
• PHP 8.0 or later.
• The WordPress Abilities API REST routes must be available before third-party provider plugins or external clients can discover and run abilities.

Public API

• npcink_abilities_toolkit_register_category( $category_id, $args )
• npcink_abilities_toolkit_register_readonly( $ability_id, $definition )
• npcink_abilities_toolkit_register_write_proposal( $ability_id, $definition )
• npcink_abilities_toolkit_normalize_schema( $schema, $default_type )
• npcink_abilities_toolkit_normalize_annotations( $annotations, $risk_level )
• npcink_abilities_toolkit_get_registered()
• npcink_abilities_toolkit_get_workflow_definitions()
• npcink_abilities_toolkit_get_workflow_definition( $recipe_id )

Third-Party Integration Quickstart

Provider plugins should wait until plugins_loaded, check that the public helper exists, and then register their abilities through the helper functions:

Do not include files from this plugin’s includes/ directory or instantiate classes in the Npcink_Abilities_Toolkit namespace. Those are implementation details.

Use npcink_abilities_toolkit_register_readonly() for read-only context and diagnostic abilities. Use npcink_abilities_toolkit_register_write_proposal() only when the callback returns a proposal, preview, diff, or handoff payload. Third-party provider callbacks should not perform final host-governed commits. Approval, audit, quota, and final write authorization belong to the consuming host runtime.

REST clients should first discover the catalog through:

• /wp-json/wp-abilities/v1/categories
• /wp-json/wp-abilities/v1/abilities
• /wp-json/wp-abilities/v1/abilities/{namespace}/{name}/run
• /wp-json/npcink-abilities-toolkit/v1/contract

The contract endpoint is a compatibility and boundary discovery endpoint for authenticated host runtimes. It does not replace the WordPress Abilities API catalog and does not run abilities.

Full provider examples and REST client notes are maintained in the public repository:

If the wp-abilities/v1 REST routes are missing, enable the WordPress Abilities API baseline or compatibility plugin before connecting third-party providers or clients.

Admin Page

After activation with a Npcink AI host plugin, open Npcink AI -> AI Abilities in wp-admin. When this standalone package is installed without a Npcink AI host menu, open Tools -> Site AI Abilities instead.

The page is designed for site operators first: it shows site ability status, groups available abilities with plain labels and risk posture, and can run two official read-only checks: site info and bounded redacted diagnostics summary. The Checks tab explains what each check proves and what it does not prove before it runs. Check results are shown as a plain summary table, with raw JSON kept behind a support disclosure. Developer Access keeps copyable REST endpoint values, raw discovery fetches, and ability ID export available for host/client setup. It does not run showcase workflows, model calls, write abilities, approval flows, or demo abilities.

Built-In Abilities

The plugin includes migrated low-risk WordPress read abilities, deterministic comment helpers, and host-governed WordPress write/destructive abilities using canonical npcink-abilities-toolkit/* ids.

It also includes npcink-abilities-toolkit/wp-diagnostics-summary, a redacted WordPress-only diagnostics summary for Abilities API clients. This summary intentionally omits Npcink AI settings, MCP settings, API keys, database names, table prefixes, filesystem paths, error logs, and external HTTP probes.

It also includes npcink-abilities-toolkit/search-posts and npcink-abilities-toolkit/search-post-meta, bounded local WordPress search helpers for keyword and explicit post-meta discovery. These are read-only helpers and do not call external search indexes or mutate content.

It also includes npcink-abilities-toolkit/list-workflow-recipes and npcink-abilities-toolkit/get-workflow-recipe, read-only host composition recipe metadata discovery abilities. These expose metadata only and do not execute workflow runtime behavior.

Core governance handoff docs include a catalog snapshot, permission matrix, and schema boundary audit for hosts that consume this plugin through npcink-ai-core.

Developer Verification

For the default local source gate, run:

When the plugin is installed in a local WordPress site, run:

For isolated bounded-chain performance validation, run: