23 KiB
Active Skills Design - Demand-Driven Documentation Loading
Date: 2025-10-24 Type: Architecture Design Status: Phase 1 Implemented ✅ Author: Edgar + Claude (Brainstorming Session)
Executive Summary
Transform Skill_Seekers from creating passive documentation dumps into active, intelligent skills that load documentation on-demand. This eliminates context bloat (300k → 5-10k per query) while maintaining full access to complete documentation.
Key Innovation: Skills become lightweight routers with heavy tools in scripts/, not documentation repositories.
Problem Statement
Current Architecture: Passive Skills
What happens today:
Agent: "How do I use Hono middleware?"
↓
Skill: *Claude loads 203k llms-txt.md into context*
↓
Agent: *answers using loaded docs*
↓
Result: Context bloat, slower performance, hits limits
Issues:
- Context Bloat: 319k llms-full.txt loaded entirely into context
- Wasted Resources: Agent needs 5k but gets 319k
- Truncation Loss: 36% of content lost (319k → 203k) due to size limits
- File Extension Bug: llms.txt files stored as .txt instead of .md
- Single Variant: Only downloads one file (usually llms-full.txt)
Current File Structure
output/hono/
├── SKILL.md ──────────► Documentation dump + instructions
├── references/
│ └── llms-txt.md ───► 203k (36% truncated from 319k original)
├── scripts/ ──────────► EMPTY (placeholder only!)
└── assets/ ───────────► EMPTY (placeholder only!)
Proposed Architecture: Active Skills
Core Concept
Skills = Routers + Tools, not documentation dumps.
New workflow:
Agent: "How do I use Hono middleware?"
↓
Skill: *runs scripts/search.py "middleware"*
↓
Script: *loads llms-full.md, extracts middleware section, returns 8k*
↓
Agent: *answers using ONLY 8k* (CLEAN CONTEXT!)
↓
Result: 40x less context, no truncation, full access to docs
Benefits
| Metric | Before | After | Improvement |
|---|---|---|---|
| Context per query | 203k | 5-10k | 20-40x reduction |
| Content loss | 36% truncated | 0% (no truncation) | Full fidelity |
| Variants available | 1 | 3 | User choice |
| File format | .txt (wrong) | .md (correct) | Fixed |
| Agent workflow | Passive read | Active tools | Autonomous |
Design Components
Component 1: Multi-Variant Download
Change: Download ALL 3 variants, not just one.
File naming (FIXED):
https://hono.dev/llms-full.txt→llms-full.md✅https://hono.dev/llms.txt→llms.md✅https://hono.dev/llms-small.txt→llms-small.md✅
Sizes (Hono example):
llms-full.md- 319k (complete documentation)llms-small.md- 176k (curated essentials)llms.md- 5.4k (quick reference)
Storage:
output/hono/references/
├── llms-full.md # 319k - everything (RENAMED from .txt)
├── llms-small.md # 176k - curated (RENAMED from .txt)
├── llms.md # 5.4k - quick ref (RENAMED from .txt)
└── catalog.json # Generated index (NEW)
Implementation in _try_llms_txt():
def _try_llms_txt(self) -> bool:
"""Download ALL llms.txt variants for active skills"""
# 1. Detect all available variants
detector = LlmsTxtDetector(self.base_url)
variants = detector.detect_all() # NEW method
downloaded = {}
for variant_info in variants:
url = variant_info['url'] # https://hono.dev/llms-full.txt
variant = variant_info['variant'] # 'full', 'standard', 'small'
downloader = LlmsTxtDownloader(url)
content = downloader.download()
if content:
# ✨ FIX: Rename .txt → .md immediately
clean_name = f"llms-{variant}.md"
downloaded[variant] = {
'content': content,
'filename': clean_name
}
# 2. Save ALL variants (not just one)
for variant, data in downloaded.items():
path = os.path.join(self.skill_dir, "references", data['filename'])
with open(path, 'w', encoding='utf-8') as f:
f.write(data['content'])
# 3. Generate catalog from smallest variant
if 'small' in downloaded:
self._generate_catalog(downloaded['small']['content'])
return True
Component 2: The Catalog System
Purpose: Lightweight index of what exists, not the content itself.
File: assets/catalog.json
Structure:
{
"metadata": {
"framework": "hono",
"version": "auto-detected",
"generated": "2025-10-24T14:30:00Z",
"total_sections": 93,
"variants": {
"quick": "llms-small.md",
"standard": "llms.md",
"complete": "llms-full.md"
}
},
"sections": [
{
"id": "routing",
"title": "Routing",
"h1_marker": "# Routing",
"topics": ["routes", "path", "params", "wildcard"],
"size_bytes": 4800,
"variants": ["quick", "complete"],
"complexity": "beginner"
},
{
"id": "middleware",
"title": "Middleware",
"h1_marker": "# Middleware",
"topics": ["cors", "auth", "logging", "compression"],
"size_bytes": 8200,
"variants": ["quick", "complete"],
"complexity": "intermediate"
}
],
"search_index": {
"cors": ["middleware"],
"routing": ["routing", "path-parameters"],
"authentication": ["middleware", "jwt"],
"context": ["context-handling"],
"streaming": ["streaming-responses"]
}
}
Generation (from llms-small.md):
def _generate_catalog(self, llms_small_content):
"""Generate catalog.json from llms-small.md TOC"""
catalog = {
"metadata": {...},
"sections": [],
"search_index": {}
}
# Split by h1 headers
sections = re.split(r'\n# ', llms_small_content)
for section_text in sections[1:]:
lines = section_text.split('\n')
title = lines[0].strip()
# Extract h2 topics
topics = re.findall(r'^## (.+)$', section_text, re.MULTILINE)
topics = [t.strip().lower() for t in topics]
section_info = {
"id": title.lower().replace(' ', '-'),
"title": title,
"h1_marker": f"# {title}",
"topics": topics + [title.lower()],
"size_bytes": len(section_text),
"variants": ["quick", "complete"]
}
catalog["sections"].append(section_info)
# Build search index
for topic in section_info["topics"]:
if topic not in catalog["search_index"]:
catalog["search_index"][topic] = []
catalog["search_index"][topic].append(section_info["id"])
# Save to assets/catalog.json
catalog_path = os.path.join(self.skill_dir, "assets", "catalog.json")
with open(catalog_path, 'w', encoding='utf-8') as f:
json.dump(catalog, f, indent=2)
Component 3: Active Scripts
Location: scripts/ directory (currently empty)
Script 1: scripts/search.py
Purpose: Search and return only relevant documentation sections.
#!/usr/bin/env python3
"""
ABOUTME: Searches framework documentation and returns relevant sections
ABOUTME: Loads only what's needed - keeps agent context clean
"""
import json
import sys
import re
from pathlib import Path
def search(query, detail="auto"):
"""
Search documentation and return relevant sections.
Args:
query: Search term (e.g., "middleware", "cors", "routing")
detail: "quick" | "standard" | "complete" | "auto"
Returns:
Markdown text of relevant sections only
"""
# Load catalog
catalog_path = Path(__file__).parent.parent / "assets" / "catalog.json"
catalog = json.load(open(catalog_path))
# 1. Find matching sections using search index
query_lower = query.lower()
matching_section_ids = set()
for keyword, section_ids in catalog["search_index"].items():
if query_lower in keyword or keyword in query_lower:
matching_section_ids.update(section_ids)
# Get section details
matches = [s for s in catalog["sections"] if s["id"] in matching_section_ids]
if not matches:
return f"❌ No sections found for '{query}'. Try: python scripts/list_topics.py"
# 2. Determine detail level
if detail == "auto":
# Use quick for overview, complete for deep dive
total_size = sum(s["size_bytes"] for s in matches)
if total_size > 50000: # > 50k
variant = "quick"
else:
variant = "complete"
else:
variant = detail
variant_file = catalog["metadata"]["variants"].get(variant, "complete")
# 3. Load documentation file
doc_path = Path(__file__).parent.parent / "references" / variant_file
doc_content = open(doc_path, 'r', encoding='utf-8').read()
# 4. Extract matched sections
results = []
for match in matches:
h1_marker = match["h1_marker"]
# Find section boundaries
start = doc_content.find(h1_marker)
if start == -1:
continue
# Find next h1 (or end of file)
next_h1 = doc_content.find("\n# ", start + len(h1_marker))
if next_h1 == -1:
section_text = doc_content[start:]
else:
section_text = doc_content[start:next_h1]
results.append({
'title': match['title'],
'size': len(section_text),
'content': section_text
})
# 5. Format output
output = [f"# Search Results for '{query}' ({len(results)} sections found)\n"]
output.append(f"**Variant used:** {variant} ({variant_file})")
output.append(f"**Total size:** {sum(r['size'] for r in results):,} bytes\n")
output.append("---\n")
for result in results:
output.append(result['content'])
output.append("\n---\n")
return '\n'.join(output)
if __name__ == "__main__":
if len(sys.argv) < 2:
print("Usage: python search.py <query> [detail]")
print("Example: python search.py middleware")
print("Example: python search.py routing --detail quick")
sys.exit(1)
query = sys.argv[1]
detail = sys.argv[2] if len(sys.argv) > 2 else "auto"
print(search(query, detail))
Script 2: scripts/list_topics.py
Purpose: Show all available documentation sections.
#!/usr/bin/env python3
"""
ABOUTME: Lists all available documentation sections with sizes
ABOUTME: Helps agent discover what documentation exists
"""
import json
from pathlib import Path
def list_topics():
"""List all available documentation sections."""
catalog_path = Path(__file__).parent.parent / "assets" / "catalog.json"
catalog = json.load(open(catalog_path))
print(f"# Available Documentation Topics ({catalog['metadata']['framework']})\n")
print(f"**Total sections:** {catalog['metadata']['total_sections']}")
print(f"**Variants:** {', '.join(catalog['metadata']['variants'].keys())}\n")
print("---\n")
# Group by complexity if available
by_complexity = {}
for section in catalog["sections"]:
complexity = section.get("complexity", "general")
if complexity not in by_complexity:
by_complexity[complexity] = []
by_complexity[complexity].append(section)
for complexity in ["beginner", "intermediate", "advanced", "general"]:
if complexity not in by_complexity:
continue
sections = by_complexity[complexity]
print(f"## {complexity.title()} ({len(sections)} sections)\n")
for section in sections:
size_kb = section["size_bytes"] / 1024
topics_str = ", ".join(section["topics"][:3])
print(f"- **{section['title']}** ({size_kb:.1f}k)")
print(f" Topics: {topics_str}")
print(f" Search: `python scripts/search.py {section['id']}`\n")
if __name__ == "__main__":
list_topics()
Script 3: scripts/get_section.py
Purpose: Extract a complete section by exact title.
#!/usr/bin/env python3
"""
ABOUTME: Extracts a complete documentation section by title
ABOUTME: Returns full section from llms-full.md (no truncation)
"""
import json
import sys
from pathlib import Path
def get_section(title, variant="complete"):
"""
Get a complete section by exact title.
Args:
title: Section title (e.g., "Middleware", "Routing")
variant: Which file to use (quick/standard/complete)
Returns:
Complete section content
"""
catalog_path = Path(__file__).parent.parent / "assets" / "catalog.json"
catalog = json.load(open(catalog_path))
# Find section
section = None
for s in catalog["sections"]:
if s["title"].lower() == title.lower():
section = s
break
if not section:
return f"❌ Section '{title}' not found. Try: python scripts/list_topics.py"
# Load doc
variant_file = catalog["metadata"]["variants"].get(variant, "complete")
doc_path = Path(__file__).parent.parent / "references" / variant_file
doc_content = open(doc_path, 'r', encoding='utf-8').read()
# Extract section
h1_marker = section["h1_marker"]
start = doc_content.find(h1_marker)
if start == -1:
return f"❌ Section '{title}' not found in {variant_file}"
next_h1 = doc_content.find("\n# ", start + len(h1_marker))
if next_h1 == -1:
section_text = doc_content[start:]
else:
section_text = doc_content[start:next_h1]
return section_text
if __name__ == "__main__":
if len(sys.argv) < 2:
print("Usage: python get_section.py <title> [variant]")
print("Example: python get_section.py Middleware")
print("Example: python get_section.py Routing quick")
sys.exit(1)
title = sys.argv[1]
variant = sys.argv[2] if len(sys.argv) > 2 else "complete"
print(get_section(title, variant))
Component 4: Active SKILL.md Template
New template for llms.txt-based skills:
---
name: {name}
description: {description}
type: active
---
# {Name} Skill
**⚡ This is an ACTIVE skill** - Uses scripts to load documentation on-demand instead of dumping everything into context.
## 🎯 Strategy: Demand-Driven Documentation
**Traditional approach:**
- Load 300k+ documentation into context
- Agent reads everything to answer one question
- Context bloat, slower performance
**Active approach:**
- Load 5-10k of relevant sections on-demand
- Agent calls scripts to fetch what's needed
- Clean context, faster performance
## 📚 Available Documentation
This skill provides access to {num_sections} documentation sections across 3 detail levels:
- **Quick Reference** (`llms-small.md`): {small_size}k - Curated essentials
- **Standard** (`llms.md`): {standard_size}k - Core concepts
- **Complete** (`llms-full.md`): {full_size}k - Everything
## 🔧 Tools Available
### 1. Search Documentation
Find and load only relevant sections:
```bash
python scripts/search.py "middleware"
python scripts/search.py "routing" --detail quick
Returns: 5-10k of relevant content (not 300k!)
2. List All Topics
See what documentation exists:
python scripts/list_topics.py
Returns: Table of contents with section sizes and search hints
3. Get Complete Section
Extract a full section by title:
python scripts/get_section.py "Middleware"
python scripts/get_section.py "Routing" quick
Returns: Complete section from chosen variant
💡 Recommended Workflow
- Discover:
python scripts/list_topics.pyto see what's available - Search:
python scripts/search.py "your topic"to find relevant sections - Deep Dive: Use returned content to answer questions in detail
- Iterate: Search more specific topics as needed
⚠️ Important
DON'T: Read references/*.md files directly into context
DO: Use scripts to fetch only what you need
This keeps your context clean and focused!
📊 Index
Complete section catalog available in assets/catalog.json with search mappings and size information.
🔄 Updating
To refresh with latest documentation:
python3 cli/doc_scraper.py --config configs/{name}.json
---
## Implementation Plan
### Phase 1: Foundation (Quick Fixes)
**Tasks:**
1. Fix `.txt` → `.md` renaming in downloader
2. Download all 3 variants (not just one)
3. Store all variants in `references/` with correct names
4. Remove content truncation (2500 chars → unlimited)
**Time:** 1-2 hours
**Files:** `cli/doc_scraper.py`, `cli/llms_txt_downloader.py`
### Phase 2: Catalog System
**Tasks:**
1. Implement `_generate_catalog()` method
2. Parse llms-small.md to extract sections
3. Build search index from topics
4. Generate `assets/catalog.json`
**Time:** 2-3 hours
**Files:** `cli/doc_scraper.py`
### Phase 3: Active Scripts
**Tasks:**
1. Create `scripts/search.py`
2. Create `scripts/list_topics.py`
3. Create `scripts/get_section.py`
4. Make scripts executable (`chmod +x`)
**Time:** 2-3 hours
**Files:** New scripts in `scripts/` template directory
### Phase 4: Template Updates
**Tasks:**
1. Create new active SKILL.md template
2. Update `create_enhanced_skill_md()` to use active template for llms.txt skills
3. Update documentation to explain active skills
**Time:** 1 hour
**Files:** `cli/doc_scraper.py`, `README.md`, `CLAUDE.md`
### Phase 5: Testing & Refinement
**Tasks:**
1. Test with Hono skill (has all 3 variants)
2. Test search accuracy
3. Measure context reduction
4. Document examples
**Time:** 2-3 hours
**Total Estimated Time:** 8-12 hours
---
## Migration Path
### Backward Compatibility
**Existing skills:** No changes (passive skills still work)
**New llms.txt skills:** Automatically use active architecture
**User choice:** Can disable via config flag
### Config Option
```json
{
"name": "hono",
"llms_txt_url": "https://hono.dev/llms-full.txt",
"active_skill": true, // NEW: Enable active architecture (default: true)
"base_url": "https://hono.dev/docs"
}
Detection Logic
# In _try_llms_txt()
active_mode = self.config.get('active_skill', True) # Default true
if active_mode:
# Download all variants, generate catalog, create scripts
self._build_active_skill(downloaded)
else:
# Traditional: single file, no scripts
self._build_passive_skill(downloaded)
Benefits Analysis
Context Efficiency
| Scenario | Passive Skill | Active Skill | Improvement |
|---|---|---|---|
| Simple query | 203k loaded | 5k loaded | 40x reduction |
| Multi-topic query | 203k loaded | 15k loaded | 13x reduction |
| Deep dive | 203k loaded | 30k loaded | 6x reduction |
Data Fidelity
| Aspect | Passive | Active |
|---|---|---|
| Content truncation | 36% lost | 0% lost |
| Code truncation | 600 chars max | Unlimited |
| Variants available | 1 | 3 |
Agent Capabilities
Passive Skills:
- ❌ Cannot choose detail level
- ❌ Cannot search efficiently
- ❌ Must read entire context
- ❌ Limited by context window
Active Skills:
- ✅ Chooses appropriate detail level
- ✅ Searches catalog efficiently
- ✅ Loads only what's needed
- ✅ Unlimited documentation access
Trade-offs
Advantages
- Massive context reduction (20-40x less per query)
- No content loss (all 3 variants preserved)
- Correct file format (.md not .txt)
- Agent autonomy (tools to fetch docs)
- Scalable (works with 1MB+ docs)
Disadvantages
- Complexity (scripts + catalog vs simple files)
- Initial overhead (catalog generation)
- Agent learning curve (must learn to use scripts)
- Dependency (Python required to run scripts)
Risk Mitigation
Risk: Scripts don't work in Claude's sandbox Mitigation: Test thoroughly, provide fallback to passive mode
Risk: Catalog generation fails Mitigation: Graceful degradation to single-file mode
Risk: Agent doesn't use scripts Mitigation: Clear SKILL.md instructions, examples in quick reference
Success Metrics
Technical Metrics
- ✅ Context per query < 20k (down from 203k)
- ✅ All 3 variants downloaded and named correctly
- ✅ 0% content truncation
- ✅ Catalog generation < 5 seconds
- ✅ Search script < 1 second response time
User Experience Metrics
- ✅ Agent successfully uses scripts without prompting
- ✅ Answers are equally or more accurate than passive mode
- ✅ Agent can handle queries about all documentation sections
- ✅ No "context limit exceeded" errors
Future Enhancements
Phase 6: Smart Caching
Cache frequently accessed sections in SKILL.md quick reference:
# Track access frequency in catalog.json
"sections": [
{
"id": "middleware",
"access_count": 47, # NEW: Track usage
"last_accessed": "2025-10-24T14:30:00Z"
}
]
# Include top 10 most-accessed sections directly in SKILL.md
Phase 7: Semantic Search
Use embeddings for better search:
# Generate embeddings for each section
"sections": [
{
"id": "middleware",
"embedding": [...], # NEW: Vector embedding
"topics": ["cors", "auth"]
}
]
# In search.py: Use cosine similarity for better matches
Phase 8: Progressive Loading
Load increasingly detailed docs:
# First: Load llms.md (5.4k - overview)
# If insufficient: Load llms-small.md section (15k)
# If still insufficient: Load llms-full.md section (30k)
Conclusion
Active skills represent a fundamental shift from documentation repositories to documentation routers. By treating skills as intelligent intermediaries rather than static dumps, we can:
- Eliminate context bloat (40x reduction)
- Preserve full fidelity (0% truncation)
- Enable agent autonomy (tools to fetch docs)
- Scale indefinitely (no size limits)
This design maintains backward compatibility while unlocking new capabilities for modern, LLM-optimized documentation sources like llms.txt.
Recommendation: Implement in phases, starting with foundation fixes, then catalog system, then active scripts. Test thoroughly with Hono before making it the default for all llms.txt-based skills.
References
- Original brainstorming session: 2025-10-24
- llms.txt convention: https://llmstxt.org/
- Hono example: https://hono.dev/llms-full.txt
- Skill_Seekers repository: Current project
Appendix: Example Workflows
Example 1: Agent Searches for "Middleware"
# Agent runs:
python scripts/search.py "middleware"
# Script returns ~8k of middleware documentation from llms-full.md
# Agent uses that 8k to answer the question
# Total context used: 8k (not 319k!)
Example 2: Agent Explores Documentation
# 1. Agent lists topics
python scripts/list_topics.py
# Returns: Table of contents (2k)
# 2. Agent picks a topic
python scripts/get_section.py "Routing"
# Returns: Complete Routing section (5k)
# 3. Agent searches related topics
python scripts/search.py "path parameters"
# Returns: Routing + Path section (7k)
# Total context used across 3 queries: 14k (not 3 × 319k = 957k!)
Example 3: Agent Needs Quick Answer
# Agent uses quick variant for overview
python scripts/search.py "cors" --detail quick
# Returns: Short CORS explanation from llms-small.md (2k)
# If insufficient, agent can follow up with:
python scripts/get_section.py "Middleware" # Full section from llms-full.md
Document Status: Ready for review and implementation planning.