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feat(sdk-core): add rich text facets support for activity descriptions
Without this patch, activity descriptions in hypercerts could only contain plain text without any inline markup or annotations. This is a problem because the AT Protocol supports rich text facets for mentions, URLs, hashtags, and other inline markup, and the hypercerts lexicon v0.10.0-beta.7 added support for these facets in activity descriptions. This patch solves the problem by adding optional shortDescriptionFacets and descriptionFacets fields to CreateHypercertParams, updating the createHypercertRecord() method to include these fields in the record, and enhancing documentation with comprehensive examples showing proper byte indexing for facets. This enables developers to create richer, more interactive hypercert descriptions following AT Protocol facet standards. Changes: - Add AppBskyRichtextFacet import to repository interfaces - Add shortDescriptionFacets and descriptionFacets to CreateHypercertParams - Update createHypercertRecord() to pass facets through to record - Enhance HypercertClaim type documentation with facet usage examples - Add changeset documenting this enhancement - Mark Change 2 complete in lexicon sync plan (part 2 of 6) Co-authored-by: Claude Code <noreply@anthropic.com>
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‎.changeset/add-rich-text-facets.md‎

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---
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"@hypercerts-org/sdk-core": minor
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---
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Add rich text facet support for activity descriptions (lexicon v0.10.0-beta.7)
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Activities now support rich text annotations (facets) in their descriptions, enabling mentions (@user), URLs, hashtags
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(#tag), and other inline markup.
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- Added `shortDescriptionFacets` and `descriptionFacets` fields to `CreateHypercertParams`
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- Updated `create()` method to include facet fields in hypercert records
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- Enhanced `HypercertClaim` documentation with comprehensive facet examples
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- Added examples showing mentions, links, and tag facets with proper byte indexing

‎packages/sdk-core/src/repository/HypercertOperationsImpl.ts‎

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@@ -283,6 +283,14 @@ export class HypercertOperationsImpl extends EventEmitter<HypercertEvents> imple
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hypercertRecord.image = imageBlobRef;
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}
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if (params.shortDescriptionFacets) {
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hypercertRecord.shortDescriptionFacets = params.shortDescriptionFacets;
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}
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if (params.descriptionFacets) {
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hypercertRecord.descriptionFacets = params.descriptionFacets;
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}
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const hypercertValidation = validate(hypercertRecord, HYPERCERT_COLLECTIONS.CLAIM, "main", false);
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if (!hypercertValidation.success) {
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throw new ValidationError(`Invalid hypercert record: ${hypercertValidation.error?.message}`);

‎packages/sdk-core/src/repository/interfaces.ts‎

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* @packageDocumentation
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*/
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import type { AppBskyRichtextFacet } from "@atproto/api";
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import type { EventEmitter } from "eventemitter3";
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import type {
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LocationParams,
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*/
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shortDescription: string;
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/**
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* Optional rich text facets for the short description (v0.10.0-beta.7+).
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*
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* Enables mentions (@user), URLs, hashtags (#tag), and other inline annotations
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* in the short description text. Each facet specifies a byte range and feature type.
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*
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* @example
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* ```typescript
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* shortDescriptionFacets: [
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* {
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* index: { byteStart: 13, byteEnd: 19 }, // "@alice"
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* features: [{ $type: "app.bsky.richtext.facet#mention", did: "did:plc:alice123" }]
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* }
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* ]
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* ```
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*/
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shortDescriptionFacets?: AppBskyRichtextFacet.Main[];
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/**
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* Optional rich text facets for the full description (v0.10.0-beta.7+).
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*
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* Enables mentions (@user), URLs, hashtags (#tag), and other inline annotations
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* in the description text. Each facet specifies a byte range and feature type.
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*
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* @example
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* ```typescript
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* descriptionFacets: [
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* {
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* index: { byteStart: 6, byteEnd: 33 }, // URL
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* features: [{ $type: "app.bsky.richtext.facet#link", uri: "https://example.com" }]
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* }
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* ]
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* ```
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*/
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descriptionFacets?: AppBskyRichtextFacet.Main[];
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/**
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* Optional cover image for the hypercert.
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*

‎packages/sdk-core/src/services/hypercerts/types.ts‎

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// ============================================================================
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export type StrongRef = ComAtprotoRepoStrongRef.Main;
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/**
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* Hypercert claim (activity) record.
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*
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* Represents a single hypercert activity with metadata including descriptions,
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* time periods, work scope, contributors, and optional rich text annotations.
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*
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* @remarks
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* **Rich Text Facets (beta.7+):**
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* - `shortDescriptionFacets` - Annotations for the short description text
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* - `descriptionFacets` - Annotations for the full description text
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*
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* Facets enable rich text features like mentions (@user), URLs, hashtags (#tag),
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* and other inline annotations. Each facet specifies:
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* - `index`: Byte range in the UTF-8 encoded text (byteStart, byteEnd)
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* - `features`: Array of feature objects (mention, link, tag, etc.)
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*
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* @example Basic claim without facets
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* ```typescript
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* const claim: HypercertClaim = {
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* $type: "org.hypercerts.claim.activity",
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* createdAt: new Date().toISOString(),
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* shortDescription: "Community cleanup project",
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* description: "Monthly beach cleanup initiative",
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* startDate: "2024-01-01T00:00:00Z",
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* endDate: "2024-12-31T23:59:59Z",
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* // ... other fields
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* };
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* ```
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*
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* @example Claim with rich text facets
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* ```typescript
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* const claimWithFacets: HypercertClaim = {
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* $type: "org.hypercerts.claim.activity",
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* createdAt: new Date().toISOString(),
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* shortDescription: "Organized by @alice for #sustainability",
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* shortDescriptionFacets: [
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* {
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* index: { byteStart: 13, byteEnd: 19 }, // "@alice"
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* features: [{ $type: "app.bsky.richtext.facet#mention", did: "did:plc:alice123" }]
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* },
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* {
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* index: { byteStart: 24, byteEnd: 39 }, // "#sustainability"
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* features: [{ $type: "app.bsky.richtext.facet#tag", tag: "sustainability" }]
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* }
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* ],
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* description: "Visit https://example.com/cleanup for more info",
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* descriptionFacets: [
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* {
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* index: { byteStart: 6, byteEnd: 33 }, // URL
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* features: [{ $type: "app.bsky.richtext.facet#link", uri: "https://example.com/cleanup" }]
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* }
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* ],
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* startDate: "2024-01-01T00:00:00Z",
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* endDate: "2024-12-31T23:59:59Z",
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* // ... other fields
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* };
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* ```
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*
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* @see {@link https://atproto.com/specs/record-key#record-key-type|AT Protocol Facets}
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*/
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export type HypercertClaim = OrgHypercertsClaimActivity.Main;
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export type HypercertRights = OrgHypercertsClaimRights.Main;
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export type HypercertContributionDetails = OrgHypercertsClaimContributionDetails.Main;
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export type HypercertContributorInformation = OrgHypercertsClaimContributorInformation.Main;

‎packages/sdk-core/tests/repository/HypercertOperationsImpl.test.ts‎

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expect(hypercertCall.record.shortDescription).toBe("Short desc");
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});
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it("should include rich text facets when provided", async () => {
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const shortDescriptionFacets = [
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{
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index: { byteStart: 13, byteEnd: 19 },
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features: [{ $type: "app.bsky.richtext.facet#mention", did: "did:plc:alice123" }],
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},
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];
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const descriptionFacets = [
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{
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index: { byteStart: 6, byteEnd: 33 },
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features: [{ $type: "app.bsky.richtext.facet#link", uri: "https://example.com/cleanup" }],
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},
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];
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await hypercertOps.create({
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...validParams,
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shortDescription: "Organized by @alice",
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shortDescriptionFacets,
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description: "Visit https://example.com/cleanup for details",
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descriptionFacets,
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});
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const hypercertCall = mockAgent.com.atproto.repo.createRecord.mock.calls[1][0];
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expect(hypercertCall.record.shortDescriptionFacets).toEqual(shortDescriptionFacets);
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expect(hypercertCall.record.descriptionFacets).toEqual(descriptionFacets);
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});
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it("should create hypercert without facets when not provided", async () => {
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await hypercertOps.create(validParams);
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const hypercertCall = mockAgent.com.atproto.repo.createRecord.mock.calls[1][0];
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expect(hypercertCall.record.shortDescriptionFacets).toBeUndefined();
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expect(hypercertCall.record.descriptionFacets).toBeUndefined();
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});
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it("should create evidence records when provided", async () => {
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const evidence = [
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{

‎specs/lexicon-sync/v0.10.0-beta.4-v0.10.0-beta.11.md‎

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- [x] Add documentation to `HypercertCollectionItem` type about the weight property
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- [x] Add usage examples in type documentation
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- [x] Verify `CollectionItemInput` helper type is correct
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- [x] Verify `CollectionItemInput` helper type is correct (already supports itemWeight)
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- [x] Verify CRUD operations support itemWeight (createCollection/updateCollection already pass items through)
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- [ ] Add/update tests for collections with weighted items
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- [x] Build and test
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- [x] Create changeset (minor - new feature available)
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**SDK Tasks**:
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- [ ] Add documentation about facet support in `HypercertClaim` type comments
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- [ ] Add example of using facets in type documentation
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- [ ] Consider adding helper types for facet creation (optional)
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- [ ] Build and test
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- [ ] Create changeset (minor - new feature available)
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- [x] Import `AppBskyRichtextFacet` from `@atproto/api` in interfaces.ts
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- [x] Add `shortDescriptionFacets` and `descriptionFacets` fields to `CreateHypercertParams`
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- [x] Update `create()` method in `HypercertOperationsImpl` to handle facet fields
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- [x] Add comprehensive documentation to `HypercertClaim` type about facets
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- [x] Add usage examples showing how to create facets for mentions, links, and tags
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- [x] Add tests for creating hypercerts with facets
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- [x] Verify facets are properly validated by lexicon validator
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- [x] Build and test
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- [x] Create changeset (minor - new feature available)
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**Validation**:
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- [ ] Format check passes (`pnpm format:check`)
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- [ ] Lint passes (`pnpm lint`)
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- [ ] Typecheck passes (`pnpm typecheck`)
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- [ ] Build passes (`pnpm build`)
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- [ ] Tests pass (`pnpm test`)
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- [ ] Types export correctly
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- [x] Format check passes (`pnpm format:check`)
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- [x] Lint passes (`pnpm lint`)
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- [x] Typecheck passes (`pnpm typecheck`)
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- [x] Build passes (`pnpm build`)
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- [x] Tests pass (`pnpm test` - 102 tests in HypercertOperationsImpl)
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- [x] Types export correctly
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**Status**: ⏳ Pending
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**Status**: ✅ Complete
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**SDK Tasks**:
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- [ ] Add documentation about avatar/banner fields in `HypercertCollection` type
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- [ ] Verify collection creation/update operations support these fields
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- [ ] Add usage examples in documentation
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- [ ] Verify `CreateCollectionParams` already supports avatar/banner (should already be done)
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- [ ] Verify `createCollection()` and `updateCollection()` methods handle avatar/banner
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- [ ] Add comprehensive documentation to `HypercertCollection` type
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- [ ] Add usage examples showing avatar/banner in collections and projects
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- [ ] Add/update tests for collections with avatar and banner
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- [ ] Build and test
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- [ ] Create changeset (minor - new feature available)
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**SDK Tasks**:
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- [ ] Add type exports for work scope expression types:
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- `HypercertWorkScopeAll`
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- `HypercertWorkScopeAny`
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- `HypercertWorkScopeNot`
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- `HypercertWorkScopeAtom`
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- `HypercertWorkScopeExpression` (union type)
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- `HypercertWorkScopeAll` = `OrgHypercertsDefs.WorkScopeAll`
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- `HypercertWorkScopeAny` = `OrgHypercertsDefs.WorkScopeAny`
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- `HypercertWorkScopeNot` = `OrgHypercertsDefs.WorkScopeNot`
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- `HypercertWorkScopeAtom` = `OrgHypercertsDefs.WorkScopeAtom`
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- `HypercertWorkScopeExpression` (union of above four)
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- [ ] Add type exports for work scope tag:
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- `CreateWorkScopeTagParams`
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- `UpdateWorkScopeTagParams`
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- `WorkScopeTagParams`
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- [ ] Verify `CreateHypercertParams.workScope` already supports the union type
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- [ ] Add comprehensive documentation about work scope expressions
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- [ ] Add usage examples showing how to build expressions
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- [ ] Add usage examples showing how to build AND/OR/NOT expressions
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- [ ] Add examples showing how to create and reference work scope tags
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- [ ] Add/update tests for work scope expressions and work scope tags
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- [ ] Build and test
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- [ ] Create changeset (minor - new feature available)
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**SDK Tasks**:
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- [ ] Add documentation about the `location` property in `HypercertCollection` type
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- [ ] Add note that this replaces the sidecar pattern
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- [ ] Verify collection operations support location property
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- [ ] Add usage examples
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- [ ] Build and test
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- [ ] Create changeset (minor - new feature available)
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- [x] Import `AppBskyRichtextFacet` from `@atproto/api` in interfaces.ts
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- [x] Add `shortDescriptionFacets` and `descriptionFacets` fields to `CreateHypercertParams`
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- [x] Update `create()` method in `HypercertOperationsImpl` to handle facet fields
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- [x] Add comprehensive documentation to `HypercertClaim` type about facets
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- [x] Add usage examples showing how to create facets for mentions, links, and tags
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- [x] Verify facets are properly validated by lexicon validator
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- [x] Build and test
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- [x] Create changeset (minor - new feature available)
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**Validation**:
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- [ ] Format check passes (`pnpm format:check`)
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- [ ] Lint passes (`pnpm lint`)
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- [ ] Typecheck passes (`pnpm typecheck`)
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- [ ] Build passes (`pnpm build`)
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- [ ] Tests pass (`pnpm test`)
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- [ ] Types export correctly
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- [x] Format check passes (`pnpm format:check`)
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- [x] Lint passes (`pnpm lint`)
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- [x] Typecheck passes (`pnpm typecheck`)
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- [x] Build passes (`pnpm build`)
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- [x] Tests pass (`pnpm test`)
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- [x] Types export correctly
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**Status**: ⏳ Pending
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**Status**: ✅ Complete
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---
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