Skillget

arscontexta

skill
SUMMARY

Claude Code plugin that generates individualized knowledge systems from conversation. You describe how you think and work, have a conversation and get a complete second brain as markdown files you own.

README.md

Ars Contexta

A second brain for your agent.

A Claude Code plugin that generates complete knowledge systems from conversation.
You describe how you think and work. The engine derives a cognitive architecture
-- folder structure, context files, processing pipeline, hooks, navigation maps,
and note templates -- tailored to your domain and backed by 249 research claims.

No templates. No configuration. Just conversation.

v0.8.0 · Claude Code plugin · MIT

Installation

  1. Add the marketplace to Claude Code:

    /plugin marketplace add agenticnotetaking/arscontexta

  2. Install the plugin:

    /plugin install arscontexta@agenticnotetaking

  3. Restart Claude Code, then run:

    /arscontexta:setup

  4. Answer 2-4 questions about your domain (~20 minutes -- token-intensive but one-time)

  5. The engine generates your complete knowledge system

  6. Restart Claude Code again to activate generated hooks and skills

  7. Run /arscontexta:help to see everything available

What It Does

Most AI tools start every session blank. Ars Contexta changes that by generating
a persistent thinking system derived from how you actually work.

What you get:

  • A vault -- plain markdown files connected by wiki links, forming a traversable
    knowledge graph. No database, no cloud, no lock-in.
  • A processing pipeline -- skills that extract insights, find connections, update
    old notes with new context, and verify quality.
  • Automation -- hooks that enforce structure on every write, detect maintenance
    needs, capture session state, and auto-commit.
  • Navigation -- Maps of Content (MOCs) at hub, domain, and topic levels.
  • Templates -- note templates with _schema blocks as single source of truth.
  • A user manual -- 7 pages of domain-native documentation generated alongside.

The key differentiator: derivation, not templating. Every choice traces to
specific research claims. The engine reasons from principles about what your
domain needs and why.

The Setup Flow

/arscontexta:setup runs a 6-phase process:

Phase What Happens
Detection Detects Claude Code environment and capabilities
Understanding 2-4 conversation turns where you describe your domain
Derivation Maps signals to eight configuration dimensions with confidence scoring
Proposal Shows what will be generated and why, in your vocabulary
Generation Produces all files: context file, folders, templates, skills, hooks, manual
Validation Checks all 15 kernel primitives, runs pipeline smoke test

The whole process takes about 20 minutes. It's token-intensive because the engine
reads research claims, reasons about your domain, and generates substantial output.
This is a one-time investment -- after setup, your agent remembers.

For advanced users: /arscontexta:setup --advanced to configure dimensions directly.

Three-Space Architecture

Every generated system separates content into three spaces:

Space Purpose Growth
self/ Agent persistent mind -- identity, methodology, goals Slow (tens of files)
notes/ Knowledge graph -- the reason the system exists Steady (10-50/week)
ops/ Operational coordination -- queue state, sessions Fluctuating

Names adapt to your domain (notes/ might become reflections/, claims/,
or decisions/), but the separation is invariant.

Commands

Plugin-Level (always available)

Command What It Does
/arscontexta:setup Conversational onboarding -- generates your full system
/arscontexta:help Contextual guidance and command discovery
/arscontexta:tutorial Interactive walkthrough (learn by doing)
/arscontexta:ask Query the research graph for methodology answers
/arscontexta:health Run diagnostic checks on your vault
/arscontexta:recommend Get architecture advice for your use case
/arscontexta:architect Research-backed evolution guidance
/arscontexta:add-domain Add a new knowledge domain to an existing system
/arscontexta:reseed Re-derive from first principles when drift accumulates
/arscontexta:upgrade Apply plugin knowledge base updates to your system

Generated (available after setup)

Command What It Does
/reduce Extract insights from sources
/reflect Find connections, update MOCs
/reweave Update older notes with new connections
/verify Combined quality check: description + schema + health
/validate Schema compliance checking
/seed Create extraction task with duplicate detection
/ralph Queue-based orchestration with fresh context per phase
/pipeline End-to-end source processing
/tasks Queue management
/stats Vault metrics
/graph Graph analysis
/next Next-action recommendation
/learn Research and grow
/remember Mine session learnings
/rethink Challenge system assumptions
/refactor Structural improvements

Processing Pipeline

The vault implements the 6 Rs, extending Cornell Note-Taking's 5 Rs with a
meta-cognitive layer:

Phase What Happens Command
Record Zero-friction capture into inbox/ Manual
Reduce Extract insights with domain-native categories /reduce
Reflect Find connections, update MOCs /reflect
Reweave Update older notes with new context /reweave
Verify Description + schema + health checks /verify
Rethink Challenge system assumptions /rethink

Fresh Context Per Phase

Each phase runs in its own context window via subagent spawning. LLM attention
degrades as context fills. By spawning a fresh subagent per phase, every phase
operates in the "smart zone."

/ralph 5
  |-- Read queue, find next unblocked task
  |-- Spawn subagent (fresh context)
  |   +-- Runs skill, updates task file, returns handoff
  |-- Parse handoff, capture learnings
  |-- Advance phase in queue
  +-- Repeat for 5 tasks

Hooks

Four hooks automate quality enforcement:

Hook Event What It Does
Session Orient SessionStart Injects workspace tree, loads identity, surfaces maintenance signals
Write Validate PostToolUse (Write) Schema enforcement on every note write
Auto Commit PostToolUse (Write, async) Git auto-commit, non-blocking
Session Capture Stop Persists session state to ops/sessions/

The Research Graph

The methodology/ directory contains 249 interconnected research claims
about tools for thought, knowledge management, and agent-native cognitive
architecture. These claims back every configuration decision.

Synthesizes

Zettelkasten -- Cornell Note-Taking -- Evergreen Notes -- PARA -- GTD -- Memory
Palaces -- Cognitive Science (extended mind, spreading activation, generation
effect) -- Network Theory (small-world topology, betweenness centrality) --
Agent Architecture (context windows, session boundaries, multi-agent patterns)

How Claims Back Decisions

Every kernel primitive includes cognitive_grounding linking to specific research:

  • MOC hierarchy -- context-switching cost research (Leroy 2009)
  • Description field -- progressive disclosure principles
  • Wiki links -- spreading activation theory

Query directly: /arscontexta:ask "Why does my system use atomic notes?"

Semantic Search (optional)

qmd adds concept matching across vocabularies.
Not required -- the system works fully with ripgrep + MOC traversal.

/setup should perform this configuration automatically when semantic search is active.
The commands below are manual fallback/setup verification.

# Install qmd
npm install -g @tobilu/qmd
# or
bun install -g @tobilu/qmd

cd your-vault/
qmd init
qmd collection add . --name <notes_directory_name> --mask "<notes_directory_name>/**/*.md"
qmd embed

Create or merge .mcp.json in the vault root:

{
  "mcpServers": {
    "qmd": {
      "command": "qmd",
      "args": ["mcp"],
      "autoapprove": [
        "mcp__qmd__search",
        "mcp__qmd__vector_search",
        "mcp__qmd__deep_search",
        "mcp__qmd__get",
        "mcp__qmd__multi_get",
        "mcp__qmd__status"
      ]
    }
  }
}

Keep qmd MCP configuration and tool preapproval in .mcp.json.

Prerequisites

Dependency Required Purpose
Claude Code v1.0.33+ Yes Plugin host
tree Yes Workspace structure injection
ripgrep (rg) Yes YAML queries, schema validation
qmd Optional Semantic search

Project Structure

arscontexta/
|-- .claude-plugin/
|   |-- plugin.json              # Plugin manifest
|   +-- marketplace.json         # Marketplace listing
|-- skills/                      # 10 plugin-level commands
|   |-- setup/                   # Conversational onboarding
|   |-- help/                    # Contextual guidance
|   |-- tutorial/                # Interactive walkthrough
|   |-- ask/                     # Query the research graph
|   |-- health/                  # Diagnostic checks
|   |-- recommend/               # Architecture advice
|   |-- architect/               # Evolution guidance
|   |-- reseed/                  # Re-derive from first principles
|   |-- upgrade/                 # Apply knowledge base updates
|   +-- add-domain/              # Multi-domain extension
|-- skill-sources/               # 16 generated command templates
|   |-- reduce/                  # Extract insights
|   |-- reflect/                 # Find connections
|   |-- reweave/                 # Backward pass
|   |-- verify/                  # Combined quality check
|   +-- ...                      # 12 more processing commands
|-- agents/
|   +-- knowledge-guide.md       # Pipeline subagent
|-- hooks/
|   |-- hooks.json               # Hook configuration
|   +-- scripts/                 # Hook implementations
|-- generators/
|   |-- claude-md.md             # CLAUDE.md template
|   +-- features/                # 17 composable feature blocks
|-- methodology/                 # 249 research claims
|-- reference/                   # Core reference documents
|   |-- kernel.yaml              # 15 kernel primitives
|   |-- three-spaces.md          # Architecture spec
|   +-- use-case-presets.md      # Pre-validated configs
|-- platforms/                   # Platform-specific adapters
|   |-- claude-code/
|   +-- shared/
|-- presets/                     # Pre-validated configurations
|-- scripts/                     # Utility scripts
+-- README.md

Development

Clone this repo and add the marketplace to Claude Code:

/plugin marketplace add ~/path-to-arscontexta

Install the plugin:

/plugin install arscontexta@agenticnotetaking

Every time you make changes, re-install the plugin:

/plugin uninstall arscontexta@agenticnotetaking
/plugin install arscontexta@agenticnotetaking

Key Files for Contributors

  • reference/kernel.yaml -- 15 primitives every system must include
  • generators/features/*.md -- composable feature blocks
  • skill-sources/*/SKILL.md -- generated command templates
  • skills/setup/SKILL.md -- the derivation engine
  • reference/use-case-presets.md -- preset definitions

Presets

Three pre-validated configurations for common use cases:

Preset For What You Get
Research Academic work, literature reviews, synthesis Atomic claims, citation tracking, methodology MOCs
Personal Life management, journaling, relationships Reflective notes, goal tracking, relationship MOCs
Experimental Testing, iteration, rapid prototyping Lightweight structure, fast capture, minimal ceremony

Presets provide starting defaults. The derivation engine adapts from there based
on your conversation.

Roadmap

Feature Status
Claude Code plugin Available
Marketplace listing Available
Multi-agent processing In progress

Philosophy

The name connects to a tradition. Ars Combinatoria, Ars Memoria,
Ars Contexta: the art of context.

Llull's rotating wheels generated truth through combination. Bruno's memory wheels
created millions of image combinations. They were external thinking systems -- tools
to think with rather than just store in. The missing piece: they required a human
mind to do the traversing. Now LLMs can traverse. The wheels can spin again.

Built on Tools for Thought for Agents research.

License

MIT

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