v3.13.0

Added — Cosmos mode: structured projection for any content

A new built-in mode that turns any content the user drops into the workspace — a codebase, a short story, a research paper, a business workflow — into an interactive knowledge graph (a cosmos). The agent reads the content, picks a domain vocabulary, writes cosmos.json, and the viewer renders it live. The first session opens a bootstrap: pneuma-skills projecting itself (56 nodes / 66 edges / 6 layers / 7-step tour / 6 perspective tours).

• Open schema, any domain — node.type and edge.type are open strings the agent picks per content. A code domain might use file / function / class + imports / calls; a fiction domain uses character / event / clue + discovers / vanished_near. references/node-type-vocabularies.md catalogs starting vocabularies for code, fiction, research, business, mixed.
• Two-level navigation — Project (one card per layer with aggregate complexity + node counts) ↔ Detail (concrete nodes). Three persona densities (overview / learn / deep-dive). Layer focus filter, category chips (CODE / CONFIG / DOCS / …), fuzzy search across name / summary / tags / type.
• Selection focus mode — clicking a node lights up its first-degree neighbors, dims everything else, and animates touching edges with directional flow.
• Source references — every node carries sources[] with six kinds (file / url / passage / image / audio / video). The INFO panel renders kind-tinted chips that open via the OS or a chosen editor (Cursor / VS Code / Sublime — auto-detected). For codebase cosmoses, set project.sourceRoot to enable an "Open project root in editor" affordance that lights up the project overview card.
• Perspective tours — variant walks through the same cosmos framed by design lenses (orthogonality, cybernetic-loop, tension, convergence, self-similarity, paradigm-shift, …). Each perspective has a thesis + ordered steps[], where every step has its own multi-node focus (the canvas lights up the cluster together) and its own narrative beat.
• User-driven drill-down — shift+click multi-select on the canvas, click the floating Drill CTA, edit the prompt in a modal, send. Anchor nodes pulse while the agent generates; new subgraph lands in the DRILLS sidebar tab; the agent's locator card swaps the canvas into a focused subgraph view with a breadcrumb back to parent. Recursive — drill inside a drill via parentSubgraphId.
• Bilingual seed — locale-aware {{_locale}} token in init.seedFiles (framework-level). Ships seed/en/ and seed/zh-CN/ with full prose translation (56 nodes, 7 tour steps, 6 × 3-4 perspective step narratives, README). Other locales fall back to en/; adding a new locale means dropping a sibling directory — no framework change.
• Full viewer i18n — new cosmos namespace with 110+ keys in en + zh-CN. Every chrome surface (tabs, view controls, modals, empty states, source chips, tour stepper, drill modal, onboarding, help) goes through useTranslation("cosmos"). The default drill prompt is locale-aware too.
• Schema with auto-migration — normalizeCosmos() reads older files transparently: legacy cosmos.tao[] → cosmos.perspectives[], entry type → lens, flat manifestsIn[] → synthesized steps[], single node.source: string → sources[0] as file or url ref. Old files keep rendering; new files should write the new shape.
• Inspired by Lum1104/Understand-Anything (MIT) — schema shape and dashboard tech-stack borrow from upstream; core mechanics (sources / perspectives / drill-down / locale-aware seed) are Pneuma-native. See modes/cosmos/NOTICE.md.

Improved — create-mode skill closes the silent-registration trap

A new mode has to be registered in three separate files for the runtime to surface it correctly — core/mode-loader.ts (frontend dynamic import), server/index.ts builtinNames (launcher gallery), and CLAUDE.md + AGENTS.md + README.md (docs). Missing the second one is the exact failure that bit Cosmos during this release: bun run dev cosmos worked, but the launcher gallery showed nothing. create-mode's Step 3 is now an explicit three-part checklist with code snippets per file, and Step 5's sanity check probes /api/registry to verify registration before declaring the mode done. The skill also adds the "Launcher surface: public vs hidden + featured-eligible" question to the design brief template.

Improved — Launcher gallery surfaces every builtin mode

server/index.ts builtinNames adds "cosmos" — the launcher's /api/registry route reads from this hardcoded array (separate from the frontend's core/mode-loader.ts builtinModes), and missing entries fail silently. The dual registration is documented in create-mode going forward.