Capabilities Explorer

Find the APIs and permissions your plugin needs.

Build your first plugin

More filters

Capability family

Authority type

42 capabilities · 277 API methods

Development catalog

Domains
library
Inspect books, source text, TOCs, exact locations, ranges, images and collections; import, organize and manage text tasks.
58 APIv1.35.0
Domains
reading
Observe reading sessions, navigate and select text, control playback and modes, and query progress, time and insights.
28 APIv2.24.0
Domains
annotations
Page, inspect and observe highlights and notes; create them or apply revision-checked edits and deletes.
9 APIv2.2.0
Domains
conversations
Read authorized transcripts, summaries and runtime state; propose turns, manage threads and use approved stop or clear controls.
15 APIv1.6.0
Domains
settings
Discover exact setting paths and options, read settled snapshots, observe changes and update supported targets.
10 APIv1.10.0
Domains
memory
Search, page, inspect and correct memories; work with profiles, entities, classification, graphs and versioned context bundles.
23 APIv2.8.0
Contributions
uriHandlers
Handle namespaced ReadAware URI invocations through a registered action.
1 APIv1.0.0
Contributions
selectionActions
Add actions for captured selection, annotation or navigator input.
1 APIv1.2.0
Contributions
headerActions
Add reader, library or agent header actions with host-rendered views.
1 APIv1.2.0
Contributions
contextActions
Add typed actions for supported book or collection context surfaces.
1 APIv1.0.0
Contributions
commands
Add namespaced command-palette actions and update their owned state.
1 APIv1.1.0
Contributions
settingsOptions
Resolve dynamic choices for a declared plugin setting.
1 APIv1.0.0
Contributions
voiceProviders
Provide voice choices and encoded audio for read-aloud.
1 APIv1.0.0
Contributions
contentProviders
Provide sections for virtual books such as saved feeds.
1 APIv1.0.0
Contributions
readerModes
Supply bounded sentence or paragraph segmentation in bundled plugins.
1 APIv1.1.0
Contributions
agentTools
Register namespaced tools that the reading assistant can discover and call.
1 APIv1.3.0
Contributions
agentContextProviders
Supply bounded per-turn reference blocks and declared reading-intent sources.
1 APIv1.1.0
Contributions
agentRetrievalProviders
Expose searchable plugin-owned sources to the assistant.
1 APIv1.0.0
Contributions
memoryCandidateProviders
Propose facts, preferences, insights or summaries for memory acceptance.
1 APIv1.1.0
Contributions
themes
Declare semantic app and reader theme choices in the manifest.
Manifest declarationv1.0.0
Contributions
fonts
Declare font metadata and packaged font assets.
Manifest declarationv1.0.0
Contributions
syncTransports
Store and retrieve opaque encrypted events, blobs and key-material meta objects on an alternative remote.
1 APIv2.0.0
Services
storage
Use private KV and document collections, pages, observations, conditional commits and quota policies.
15 APIv2.6.0
Services
secrets
Read and write credentials in plugin-private encrypted slots.
3 APIv1.0.0
Services
ui
Publish views, show toast, save or open resources, navigate workspaces and commands, and control supported reader panels and windows.
24 APIv1.17.0
Services
schedules
Bind declared recurring handlers, inspect and control schedules, and manage owned deferred requests.
6 APIv2.1.0
Services
jobs
Start, inspect and control durable plans built from supported host operations.
4 APIv1.1.0
Services
changes
Open and read scoped change cursors that can be persisted across restarts.
2 APIv1.0.0
Services
transactions
Preview and commit supported local changes, inspect receipts and preview conditional undo.
4 APIv1.0.0
Services
session
Read environment metadata and check availability of supported operations.
3 APIv2.18.0
Services
plugins
Inspect installed plugins and registrations, observe changes, and discover or call typed plugin services.
6 APIv1.10.0
Services
maintenance
Inspect maintenance state and enter host-owned backup, connection-test, update or settings flows.
6 APIv1.5.0
Services
diagnostics
Request supported diagnostic export or reporting flows.
3 APIv1.2.0
Services
logging
Write bounded structured developer events and inspect logging policy.
2 APIv1.0.0
Services
resources
Pick files and directories, read or create sealed resources, export data, and store private binary assets.
21 APIv1.5.0
Services
sync
Observe sync status and backlog, request sync, and enter host-managed account or connection flows.
8 APIv1.2.0
Services
network
Make origin-scoped HTTP requests or read bounded streams, with opt-in safe retries.
5 APIv2.2.0
Services
llm
Request text, structured or streaming inference, use sealed image resources, and track request metadata and budgets.
6 APIv1.6.0
Services
clipboard
Write text or a supported sealed image to the system clipboard.
2 APIv1.1.0
Schemas
views
Describe host-rendered lists, forms, details, markdown and supported block layouts.
Manifest declarationv1.12.0
Schemas
settings
Declare typed plugin settings, conditional fields and dynamic option references.
Manifest declarationv1.0.0
Schemas
themes
Describe semantic application and reader palettes.
Manifest declarationv1.0.0