Initial commit — research-en skill bundle

5-skill bundle for structured, resumable, parallel deep research:
- /research              — preliminary outline + fields generation
- /research-add-items    — supplement research objects
- /research-add-fields   — supplement field definitions
- /research-deep         — parallel agents per item, resumable, JSON-validated
- /research-report       — JSON to markdown report with TOC

Includes validate_json.py for fields.yaml coverage check (PyYAML required).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

research-add-items/SKILL.md

@@ -0,0 +1,30 @@
+---
+name: research-add-items
+user-invocable: true
+description: Add items (research objects) to existing research outline.
+allowed-tools: Bash, Read, Write, Glob, WebSearch, Task, AskUserQuestion
+---
+
+# Research Add Items - Supplement Research Objects
+
+## Trigger
+`/research-add-items`
+
+## Workflow
+
+### Step 1: Auto-locate Outline
+Find `*/outline.yaml` file in current working directory, auto-read.
+
+### Step 2: Get Supplement Sources in Parallel
+Simultaneously:
+- **A. Ask user**: What items to supplement? Any specific names?
+- **B. Ask if Web Search needed**: Launch agent to search for more items?
+
+### Step 3: Merge and Update
+- Append new items to outline.yaml
+- Display to user for confirmation
+- Avoid duplicates
+- Save updated outline
+
+## Output
+Updated `{topic}/outline.yaml` file (in-place modification)