feat: v1.1 — URL ingestion, vision, delta tracking, 3 new skills, auto-commit

Skills (new):
- skills/obsidian-markdown/ — full Obsidian Flavored Markdown syntax reference
  (wikilinks, embeds, callouts, properties, math, Mermaid)
- skills/obsidian-bases/ — Obsidian Bases (.base files) with correct filters/views/
  formulas syntax (sourced from kepano/obsidian-skills authoritative spec)
- skills/defuddle/ — web page cleaner; strips ads/nav before URL ingestion,
  saves 40-60% tokens on web articles

wiki-ingest upgrades:
- URL ingestion: pass https:// directly, auto-fetches + runs defuddle if available
- Image/vision ingestion: .png/.jpg/.gif etc → Claude reads → description saved
  to .raw/ → standard ingest pipeline
- Delta tracking: .raw/.manifest.json tracks hash per source, skips unchanged files

wiki-query upgrades:
- Quick mode (query quick:) — hot.md + index only, ~1500 tokens
- Standard mode — existing behaviour, 3-5 pages
- Deep mode (query deep:) — full wiki + optional web search supplement

hooks:
- PostToolUse auto-commit: every Write/Edit to wiki/ or .raw/ triggers
  git add + commit automatically, vault always versioned

fixes:
- Removed invalid allowed-tools field from all 10 SKILL.md files
  (not a valid skill frontmatter attribute per spec; was silently ignored)
- Canvas SKILL.md now references json-canvas open standard and kepano/obsidian-skills

wiki research:
- Ecosystem research: 16+ Claude+Obsidian projects mapped and filed
- New pages: comparisons/claude-obsidian-ecosystem, concepts/cherry-picks,
  entities/ (6 new), sources/claude-obsidian-ecosystem-research
- Cherry-picks roadmap filed at wiki/concepts/cherry-picks.md

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

wiki/entities/Nexus-claudesidian-mcp.md

@@ -0,0 +1,53 @@
+---
+type: entity
+title: "Nexus (ProfSynapse/claudesidian-mcp)"
+created: 2026-04-08
+updated: 2026-04-08
+tags:
+  - github-repo
+  - obsidian-plugin
+  - mcp-server
+  - native-plugin
+status: current
+related:
+  - "[[cherry-picks]]"
+  - "[[claude-obsidian-ecosystem]]"
+sources:
+  - "[[claude-obsidian-ecosystem-research]]"
+---
+
+# Nexus (formerly Claudesidian MCP)
+
+**Type**: Native Obsidian plugin + MCP bridge
+**URL**: https://github.com/ProfSynapse/claudesidian-mcp
+**Current name**: Nexus MCP for Obsidian
+**Install**: `.obsidian/plugins/nexus/`
+
+## What It Does
+
+Full Obsidian plugin with two modes:
+1. **Native chat inside Obsidian** — connect any AI provider
+2. **MCP bridge** — expose vault to Claude Desktop, Claude Code, Codex CLI, Gemini CLI, Cursor, Cline
+
+## Key Features
+
+- **Workspace memory** — persistent context across sessions stored as JSONL, automatically included in Obsidian Sync
+- **Task management** — projects, tasks, blockers, dependencies tracked within vault
+- **Semantic search** — search notes + past conversations by meaning
+- **Inline editing** — edit selected text in notes
+- **PDF + audio → Markdown** — conversion on right-click or auto-on-add
+- **Web page capture** — open URL in Obsidian, save as Markdown/PNG/PDF
+- **Mobile support** — native chat works on iOS/Android
+- **Two-tool architecture** — dedicated tools for read vs write actions
+
+## Storage Architecture
+
+Data stored as JSONL files in `.obsidian/plugins/nexus/data/`. This is included in Obsidian Sync automatically (unlike the `.nexus/` folder of v1). SQLite cache is local-only, rebuilt from JSONL on each device.
+
+## Relevance to claude-obsidian
+
+Nexus is in a different category — it's a native TypeScript Obsidian plugin, not a Claude Code skill plugin. The two don't compete directly, but its workspace memory and task management patterns are cherry-pickable.
+
+## Cherry-Picks for claude-obsidian
+
+- [[cherry-picks#11. obsidian-memory-mcp Integration]] (different implementation, same concept)