Gate JSDoc completeness on every package export

New doc-sync gate verify-export-jsdoc walks every module-level exported
name under packages/*/*/src and requires description prose everywhere,
plus @param per parameter and @returns on non-void annotated returns for
function-like exports, public class methods, properties, and accessors.
The parsing + check helpers move out of gen-cordis-catalog.ts into a
shared scripts/jsdoc.ts so 'documented' means one thing on both gated
surfaces.

Deliberate exemptions (documented in the RFC): heritage-declared class
members (the seam declaration is the doc's one home — the one checker
query in an otherwise pure-AST walk), cordis plugin-protocol slots
(name/inject/reusable/Config/apply, top-level and static), constructors,
overload implementations, declare-module augmentation bodies, and
re-export statements (checked at the defining module).

The 203 under-documented exports the gate found at adoption are filled
in this change, so the gate lands green; generated catalogs/graphs are
regenerated for the shifted line pointers.

RFC: docs/rfc/implemented/process/2026-07-06-export-surface-jsdoc-gate.md

packages/ui/acp/src/codec.ts

@@ -39,6 +39,8 @@ import type { ContentBlock as AcpContentBlock, StopReason } from '@agentclientpr
  *                 hook before any step ran — ACP has no "rejected" reason, and a
  *                 blocked prompt is, from the client's view, the prompt not being
  *                 carried out; `cancelled` is the closest legal wire reason)
+ * @param reason - the harness turn-end reason to translate.
+ * @returns the legal ACP wire value per the mapping above.
  */
 export function turnEndToStopReason(reason: TurnEndReason): StopReason {
   switch (reason.kind) {
@@ -71,6 +73,8 @@ export function turnEndToStopReason(reason: TurnEndReason): StopReason {
  * `reasoning` is surfaced via `agent_thought_chunk`
  * streaming rather than as a message block, and `tool-call`/`tool-result`
  * are handled by the tool-call update path.
+ * @param block - the harness content block to translate.
+ * @returns the ACP block, or `undefined` for a kind with no message-content mapping.
  */
 export function harnessBlockToAcpContent(block: ContentBlock): AcpContentBlock | undefined {
   switch (block.type) {
@@ -89,6 +93,8 @@ export function harnessBlockToAcpContent(block: ContentBlock): AcpContentBlock |
  * concatenated verbatim; resource links become explicit textual references so
  * baseline ACP clients can point at files without the bridge silently dropping
  * that context.
+ * @param prompt - the ACP prompt blocks to flatten.
+ * @returns the concatenated text, with resource links rendered as bracketed references.
  */
 export function acpPromptToText(prompt: readonly AcpContentBlock[]): string {
   return prompt
@@ -109,6 +115,8 @@ export function acpPromptToText(prompt: readonly AcpContentBlock[]): string {
  * Whether an ACP prompt contains content the bridge cannot accept. Baseline ACP
  * requires `text` and `resource_link`; richer inline payloads (`resource`,
  * image, audio, …) are rejected rather than silently dropped.
+ * @param prompt - the ACP prompt blocks to inspect.
+ * @returns `true` when any block is neither `text` nor `resource_link`.
  */
 export function promptHasUnsupportedContent(prompt: readonly AcpContentBlock[]): boolean {
   return prompt.some(block => block.type !== 'text' && block.type !== 'resource_link')

packages/ui/acp/src/index.ts

@@ -701,6 +701,8 @@ export function apply(ctx: Context, config: AcpConfig): void {
  * Build per-agent options from the plugin config, omitting absent fields
  * (exactOptionalPropertyTypes: never assign `undefined` to an optional key).
  * Exported for unit coverage of both the present and absent branches.
+ * @param config - the plugin config carrying the optional model name.
+ * @returns the per-agent options, with `model` present only when configured.
  */
 export function agentOptions(config: AcpConfig): { model?: string } {
   return {
@@ -764,6 +766,16 @@ function validateMcpServers(params: { mcpServers?: unknown[] }): void {
  *
  * Other event types (turn/step boundaries, context/message, …) produce
  * no client update.
+ * @param sessionId - the ACP session id stamped on every emitted notification.
+ * @param event - the harness session event to translate.
+ * @param notify - sink for each produced `session/update` notification; called
+ * zero or more times per event (best-effort UI feed, never load-bearing).
+ * @param presenter - resolves tool-owned render intent for tool events;
+ * defaults to the generic-fallback {@link nullToolPresenter}.
+ * @param terminal - the connection's terminal-rendering context; defaults to
+ * disabled (the plain-text console-block fallback).
+ * @param options - `includeUserMessages` (default `true`): live streaming
+ * passes `false` so a prompt the client just sent is not echoed back.
  */
 export function streamSessionEventUpdate(
   sessionId: SessionId,
@@ -825,6 +837,8 @@ export function streamSessionEventUpdate(
  * harness status triple IS `PlanEntryStatus`). The ACP client REPLACES its whole
  * plan on each `plan` update, matching the harness's whole-list-replace
  * semantics, so no per-entry diffing is needed.
+ * @param todos - the harness todo list (the whole list, not a diff).
+ * @returns the ACP plan body, one entry per todo.
  */
 export function todosToPlan(todos: TodoItem[]): Plan {
   return { entries: todos.map((todo): PlanEntry => ({ content: todo.content, priority: 'medium', status: todo.status })) }
@@ -885,7 +899,16 @@ export class ToolPresenter {
     private readonly onError: (message: string) => void = () => {},
   ) {}
 
-  /** Pending-state render intent for a `tool/call`; remembers `(name, args, card)` for the matching result. */
+  /**
+   * Pending-state render intent for a `tool/call`; remembers `(name, args, card)`
+   * for the matching result.
+   * @param callId - the call id the matching `tool/result` will look up.
+   * @param name - the tool name, resolved against the registry for `presentCall`.
+   * @param argsJson - the raw arguments JSON from the event; parsed for the view
+   * (a non-JSON string is surfaced raw).
+   * @returns the tool-owned view, or the generic fallback (title = tool name,
+   * kind `other`, parsed args as raw input) when the tool defines none or threw.
+   */
   call(callId: CallId, name: string, argsJson: string): ToolCallView {
     const args = parseToolArguments(argsJson)
     let present: ToolCallView | undefined
@@ -905,7 +928,18 @@ export class ToolPresenter {
     return view
   }
 
-  /** Completed-state render intent for a `tool/result`; consumes the remembered `(name, args, card)`. */
+  /**
+   * Completed-state render intent for a `tool/result`; consumes the remembered
+   * `(name, args, card)`.
+   * @param callId - the id of the matching `tool/call`; an unknown or late id
+   * falls back to the raw content.
+   * @param content - the result's content blocks (the fallback and fill-in body).
+   * @param isError - whether the result is an error, forwarded to `presentResult`.
+   * @param meta - the result's machine-readable meta, forwarded when present.
+   * @returns the tool-owned view — an orphaned `terminal` result (no terminal
+   * call side) and a content-less `generic` are normalized — or the raw-content
+   * generic card when the tool defines no `presentResult` or threw.
+   */
   result(callId: CallId, content: ContentBlock[], isError: boolean, meta?: unknown): ToolResultView {
     const call = this.pending.get(callId)
     this.pending.delete(callId)