v1.2.0

What's new

• Source-scoped actions — search, SPARQL, and refresh buttons are now on each source node instead of the global title bar
• Remote SPARQL routing — SPARQL panel queries the correct endpoint based on which source you opened it from. Panel title shows the source name.
• Refresh fixes cache — refresh now clears remote class/graph/instance caches so new classes appear immediately without disconnect/reconnect
• UI cleanup — disconnect button removed from tree (stays in detail view), canned queries removed from SPARQL panel
• Auto auth — x-user-email header sent automatically on all HTTP requests

v1.0.0

RDF Studio 1.0.0

The first stable release of RDF Studio — a VS Code extension for browsing, editing, and visualizing RDF knowledge graphs.

Highlights

• Inherited properties — when a local class extends a remote class via rdfs:subClassOf, remote properties are auto-fetched and shown read-only with source attribution
• Full superclass chain — breadcrumb shows the complete class hierarchy as clickable pills (e.g. Fine Squad > Squad > Organization)
• Add/edit parameter dialogs — add datatype properties from the class + superclass chain, edit existing values with type-aware input
• Graph visualization — force-directed neighborhood graph with type-consistent colors, centered on the focus entity
• SPARQL injection protection — safeIri() applied across all query sites
• 17 unit tests covering superclass chain walking, file-safe compacting, triple-quoted string handling, and more

What's included

• Knowledge graph browser with namespace-grouped tree
• Detail view with parameters, relationships, and inherited properties
• Full CRUD for ontologies, classes, properties, and instances
• Remote SPARQL endpoint support with auto-discovery and caching
• SPARQL query panel with preset queries
• Turtle language support (hover, go-to-definition, autocomplete, diagnostics)
• Example Solar System knowledge graph for demos
• Light and dark theme support

Roadmap

• SHACL validation (schema service exists but not yet wired to UI)
• Rename refactoring across files
• RDF/XML and JSON-LD format support

Install

code --install-extension rdf-studio-1.0.0.vsix

v0.5.1

New features

• Add parameter — new button on instance detail view, shows form with datatype properties from class + superclass chain
• Edit parameter — pencil icon on value boxes (hover to reveal), inline form with type-aware input (boolean gets dropdown)
• Remote instance caching — 5-minute TTL cache, foaf:name support, increased limit to 15,000
• Edit relationship — now merges local + remote options in one dropdown, includes subclass instances
• Add relationship — remote entity loading with search fallback for ranges without local instances

Bug fixes

• Fix webview JS scope collision (const→var in client-side script) that caused PendingScript parse errors in VS Code webview, breaking all dialog forms

v0.5.0

What's New

Edit Relationship Form

• In-panel form replaces broken native VS Code QuickPick
• Adapts to context: pre-populated dropdown for local data, username search for remote
• Remote search uses exact username match (Codex BigTable compatible)
• Search results with status feedback ("Searching...", "No matches found")

Inherited Properties

• "Add Relationship" now shows properties from the full superclass chain
• Schema view shows inherited properties from all ancestors (not just direct parent)
• Entity type display uses property range as fallback (shows "PERSON" not "RESOURCE")

File-Safe Writing

• Only uses prefixes declared in the target TTL file when writing triples
• Prevents undeclared prefixes (e.g., bm:) from breaking Turtle parsing
• Falls back to full <IRI> when no matching prefix exists in the file

Bug Fixes

• Fix getTypes to filter generic types (Resource, Thing, Class)
• Fix template literal escaping in generated code
• Fix search results disappearing due to re-triggering

v0.4.0

What's New

Source-Grouped Tree

• Ontology view now groups by source: "Local Files" and named remote endpoints
• Each source has its own independent class hierarchy — no mixing of local and remote data
• + button offers "New Ontology" or "Connect SPARQL Endpoint"
• Inline ↻ (refresh) and 🔌 (disconnect) buttons on each source node

On-Demand Remote Instances

• Expanding a class under a remote source lazily queries the SPARQL endpoint
• Only fetches when you expand — no upfront bulk download
• Results limited to 200 with clear "showing first 200" indicator
• FROM clauses cached per endpoint for fast subsequent queries

Persistent Endpoints

• Connected endpoints saved to workspace state, auto-reconnect on restart
• Smart graph discovery for Codex/Atlas and other named-graph endpoints
• Ontology endpoint fallback (/ontology Turtle) for Codex prod

v0.3.1

What's New

Persistent Endpoints

• Connected SPARQL endpoints are saved to workspace state and auto-reconnect on VS Code restart
• Disconnect via the 🔌 icon in the Ontology view header (quick pick from connected endpoints)

Smart Graph Discovery

• Auto-discovers named graphs when default graph is empty
• Detects Codex/Atlas snapshot pointer pattern (urn:x-codex:meta:pointer)
• Tries /ontology Turtle endpoint before SPARQL CONSTRUCT (works with Codex prod)
• Falls back to listing named graphs, then standard CONSTRUCT
• Startup message shows "X local + Y remote triples"

Settings

"rdfStudio.sparqlEndpoints": [
  {
    "name": "Codex",
    "url": "http://codex.services.gew1.spotify.net:3330/spotify_v2",
    "graphs": ["urn:x-codex:graph:reference", "urn:x-codex:graph:contributed"]
  }
]

v0.3.0

What's New

Remote SPARQL Endpoints

• Connect to any SPARQL 1.1 endpoint via the globe icon in the Ontology view
• Auto-detects Fuseki-style URLs (appends /query if needed)
• Fetches schema (classes, properties, ontology declarations) — not full instance data
• Handles both N-Triples and Turtle responses, normalizes Fuseki's padded PREFIX format
• Persistent endpoints: configure in settings for auto-connect on startup
• Disconnect via right-click context menu

Edit Object Relationships

• Edit icon (pencil) on object relationship boxes, visible on hover
• Opens quick pick to replace the target entity
• Correctly uses rdfs:domain for incoming relationships, rdfs:range for outgoing

Bug Fixes

• Fix RDFS-reasoned data hiding classes: filter rdfs:subClassOf self-loops from reasoned triples
• Fix namespace grouping: collect ALL classes (including nested subclasses), not just roots
• Bypass VS Code proxy for direct SPARQL endpoint access

Settings

"rdfStudio.sparqlEndpoints": [
  { "name": "My Graph", "url": "http://host:3330", "dataset": "mydata" }
]

v0.2.1

Add marketplace icon

v0.2.0

What's New

Entity Management

• Delete ontologies, classes, and instances via context menu with confirmation dialog
• New Instance button in class detail view (moved from context menu)
• Fix instance creation writing invalid bare names when namespace prefix not found

UI Improvements

• Rename Relationships panel → Details
• Property kind selector — separate Object Property / Datatype Property with filtered range dropdowns
• Entity dropdown in Add Relationship form replaces "Pick entity" button when range has known instances
• Scoped range picker — object property ranges only show classes from local + imported namespaces
• Schema view boxes no longer clip text content (removed max-height constraint, stretch to match row height)
• Namespace prefix shown in class dropdowns to disambiguate (e.g., "Billing (fp:)")

Bug Fixes

• Fix vsce package --no-dependencies excluding Oxigraph WASM — extension now bundles all dependencies
• Fix safeCompact() fallback to <full-IRI> when no prefix matches, preventing invalid Turtle output
• Fix new class/instance not selecting in ontology tree (race condition)

RDF Studio v0.1.0 — Initial Release

RDF Studio v0.1.0 — Initial Release

A VS Code extension for building and exploring RDF knowledge graphs. Load Turtle (.ttl) files and get a visual editor for OWL ontologies, entities, and SHACL constraints — no external triplestore needed.

Highlights

Visual Knowledge Graph Editor

• Ontology tree with namespace grouping, type-colored icons, and instance counts
• Triple table showing entity relationships as Source · Relation · Target with fan-in grouping
• Schema view for OWL classes with declared properties, domain/range, and SHACL severity pills (Required / Recommended / Optional)

Full CRUD

• Create and edit ontologies, classes, properties, and instances via modal dialog forms
• Add/remove relationships with schema-guided predicate and range-locked target pickers
• Inline cell editing — click a value to edit, Enter to save, Esc to cancel
• Import management — add/remove owl:imports between ontologies
• Auto-prefix injection for cross-ontology references

SPARQL & Visualization

• SPARQL query panel with 5 preset queries and clickable result tables
• Neighborhood graph — force-directed canvas showing direct connections

Turtle Language Support

• Hover tooltips, Go to Definition (F12), autocomplete, document outline
• Diagnostics for undefined prefixes and dangling references

Built for VS Code

• Full light/dark theme support via --vscode-* variables
• Content Security Policy with nonce
• Codicon icons throughout
• All edits via WorkspaceEdit — supports Undo/Redo and source control

Powered by

• Oxigraph WASM — in-memory SPARQL 1.1 store
• Codicons — VS Code's icon font

What's next

• Async SHACL validation with ghost rows for missing required properties
• Constraint editor for creating/editing SHACL shapes
• Rename with workspace-wide refactoring
• Delete class/entity with impact analysis