Yichen Jiang
12bef3b577
Review follow-up: the per-step gate recomputed view(previous) on every changed apply — a property read for identity-stable views, but a fresh throwaway object per change for computing views. The registry now keeps a WeakMap from state object to raw view: the previous state's view was cached when that state was current, so each distinct state's view computes exactly once (gate and snapshot share the memo) and the quiet path allocates nothing. Unlike the earlier lastView record, an entry is keyed by the state itself — the view of that exact state by the pure-view contract — so no stamping discipline exists to get wrong. Primitive states bypass the WeakMap and compute directly.
description, kind
| description | kind |
|---|---|
| The extensions group map: model-facing tools and dual-half runners for defining, running, and removing dynamic Cordis packages, for users and maintainers navigating the group. | package-group |
packages/extensions
English | 中文
Summary
The extensions group lets a running agent modify the runtime it runs inside: the model can inspect the plugins and services loaded in the current DSH process, define a dynamic Cordis package (with a host half, a browser half, or both), run it, stop it, and remove it, and a browser panel operates every definition. Packages evolve by plugin: a plugin holds immutable package versions and can run or update between them. Definitions live only in process memory, so a DSH restart clears them and nothing here writes repository files or configuration. Four packages form the subsystem: the model-facing tools plus the host runner, and the browser runner plus the browser UI.
Table of Contents
Packages
| Package | Role | ctx key |
|---|---|---|
tool-cordis |
Seven model-facing tools: inspect the live runtime, define, run, stop, and remove dynamic packages | registers on ctx.tools |
cordis-host-runner |
Host half: definition registry, sandboxed host-half lifecycle, and the inspect registry browser queries answer | provides ctx.dynamicCordisRunner and ctx.cordisInspect |
cordis-client-runner |
Browser half: evaluates a browser-half source into a live plugin and answers run requests | client face; provides browser ctx.dynamicCordisRunner |
ui-cordis |
Browser surfaces: the frame-wide panel, lifecycle tool cards, and the @pluginId input source |
client face; registers slots |
Related documentation
- Extensions subsystem — the generated
ctx.cordisInspectandctx.dynamicCordisRunnerservice API. - Generated tool catalog — the seven model-facing tool schemas.
- Generated configuration catalog — the runner's accepted config fields.
- Self-referential Cordis toolset Agent Note — design home for sandbox semantics, lifecycle, and composition.
- Client shells and dynamic packages Agent Note — package placement and build faces for the client halves.
Dev Note
Working context for maintainers — click to expand
The two browser-half packages live in this group rather than under packages/client/ because they are halves of this subsystem's dual-half packages; the client face compiles them through the client program, while the host program references only the host runner.