Agent collaboration · DeepSeek Harness plugins — Page 17

The generic three-column desktop/web app frame (brand sidebar, main surface, resizable details column, theme, platform title-bar spacing) any ACRYL Blend's domain plugin claims as its own main UI, the same way plugins/acryl-workspace claims it for the IDE. Extracted from acryl-workspace's own shell/ so the next Blueprint after the IDE does not rebuild this wiring again.

Configurable brand for the Web and Desktop client: product name, mark, accent color, font and page title, set from the plugin row's config so anyone can ship ACRYL under their own name

Template for an agent-generated capability package (constitution V)

Registers a /hello-example chat slash command (all surfaces)

Adds a Bookmark action under every finished assistant message (conversation.chat.assistant-actions slot)

Adds a top-bar button that opens a notes panel (web client plugin, no build step)

Adds a tab to the right sidebar (web client plugin, no build step)

Typed, validated plugin config (Schemastery)

Listens to and emits a Cordis event

Provides a greeter service (class form)

Consumes the greeter service

Host plugin that reloads its own code on every update (hot shim)

Smallest ACRYL plugin: a lifecycle function that logs once when it mounts

Observes the agent lifecycle: before each step, before each model request, and each model stream (observers that pass everything through)

Registers an echo LLM provider route (adapter contract demo)

Brands the served web page: title, favicon and a global CSS variable (Web and Desktop host)

Reads the desktopProfiles Host service (full on Desktop, a subset on Web and CLI)

Adds a section to the agent system prompt

Adds a section to the system prompt through the harness's system-prompt/assemble waterfall

Adds an HTTP route to the web host

Registers a validated settings section (Web and Desktop settings page, config file on the CLI)

Provides a bundled skill

Consumer of the speller capability

Provider A of the speller capability