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P0-Brainstem Pilot — Ontology Schema Implementation

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P0-Brainstem Pilot — Ontology Schema Implementation

Date: 2026-05-20 (Updated: 2026-05-21) Status: ✅ Phase 1 Complete — 이후 전체 vault로 확장 완료 Scope: P0-brainstem 16개 .neuron 파일 (Pilot) 현재: 전체 vault 5,014개 노드에 OpenCrab ontology 적용 완료 (99.98%)

Objective

Apply OpenCrab-style ontology schema to P0-brainstem to:

  1. Add typed frontmatter (type, space, rule_token, etc.)
  2. Connect all .neuron files via links in rules.md
  3. Export JSONL graph for future query capability
  4. Enable orphan detection in Obsidian graph view

Schema Design

Frontmatter for .neuron files

---
title: 禁{rule_name}
type: policy
space: policy
rule_token: {token_name}
rule_priority: P0 (HIGHEST)
rule_source: {source}
created: {extracted from file or 2026-05-20}
updated: 2026-05-20
promotion_status: validated
links:
  - "[[P0-brainstem/brain/rules]]"          # hub — required
  - "[[P5-ego/SELF_MODEL]]"                   # P5-Ego (enforcement authority)
  - "[[P0-brainstem/brain/Drewgent-brain/P0-brainstem/禁/禁brain_obsidian_graph]]"  # graph rule
---

Frontmatter for rules.md (already has most fields)

---
title: P0 Brainstem Rules
type: concept
space: claim
domain: brainstem
rule_category: index
created: 2026-05-14
updated: 2026-05-20
promotion_status: validated
links:
  - "[[P5-ego/SELF_MODEL]]"
  - "[[P1-limbic/persona/SOUL]]"
  - "[[P3-sensors/gateway/drewgent-architecture-dataflow]]"
  # Expand: add all 14 .neuron files
---

Files to Modify

Group A: .neuron files (10 files in P0-brainstem/brain/Drewgent-brain/P0-brainstem/)

FileRule TokenSource
禁auto_validate.neuron禁auto_validateLoopy-Era HARD Hooks
禁blind_write.neuron禁blind_writeNeuronFS Governance Defaults
禁console_log.neuron禁console_logNeuronFS Governance Defaults
禁filesystem_truth.neuron禁filesystem_truthLoopy-Era HARD Hooks
禁karpathy_coding_principles.neuron禁karpathy_coding_principlesDrewgent P0-brainstem
禁rm_rf_root.neuron禁rm_rf_rootNeuronFS Governance Defaults
禁secrets_in_code.neuron禁secrets_in_codeNeuronFS Governance Defaults
禁subagent_verify.neuron禁subagent_verifyLoopy-Era HARD Hooks
禁task_qa_gate.neuron禁task_qa_gateLoopy-Era HARD Hooks
禁tool_integration_3file.neuron禁tool_integration_3fileDrewgent P5-Ego Integration

Group B: .neuron files (4 files in P0-brainstem/brain/Drewgent-brain/P0-brainstem/禁/)

FileRule TokenSource
禁brain_obsidian_graph.neuron禁brain_obsidian_graphDrewgent P5-Ego + P0-brainstem
禁kanban_hallucination.neuron禁kanban_hallucinationDrewgent Brain Integration
禁kanban_worker_accountability.neuron禁kanban_worker_accountabilityDrewgent Brain Integration
禁task_qa_gate.neuron禁task_qa_gateLoopy-Era HARD Hooks

Group C: rules.md

  • Add 14 .neuron files to links:
  • Add updated: 2026-05-20
  • Add promotion_status: validated

Implementation Steps

Step 1: Add frontmatter to Group A (10 files)

For each file:

  1. Read existing content
  2. Prepend YAML frontmatter (at the very top — before # Rule:)
  3. Preserve all existing content
# Example transformation for 禁auto_validate.neuron
# BEFORE:
# Rule: 禁auto_validate
# Token: 禁auto_validate
# ...
 
# AFTER:
# ---
# title: 禁auto_validate
# type: policy
# space: policy
# rule_token: 禁auto_validate
# rule_priority: P0 (HIGHEST)
# rule_source: Loopy-Era HARD Hooks - Hugh Kim's Claude Code Harness
# created: 2026-05-20
# updated: 2026-05-20
# promotion_status: validated
# links:
#   - "[[P0-brainstem/brain/rules]]"
#   - "[[P5-ego/SELF_MODEL]]"
#   - "[[P0-brainstem/brain/Drewgent-brain/P0-brainstem/禁/禁brain_obsidian_graph]]"
# ---
# Rule: 禁auto_validate
# ...

Step 2: Add frontmatter to Group B (4 files)

Same pattern as Group A.

Step 3: Update rules.md

  • Add all 14 .neuron files to links: section
  • Update updated: field
  • Add promotion_status: validated

Step 4: JSONL graph export

Generate p0-brain-ontology.jsonl for graph query:

{"id": "禁auto_validate", "type": "policy", "space": "policy", "title": "禁auto_validate", "file": "P0-brainstem/brain/Drewgent-brain/P0-brainstem/禁auto_validate.neuron", "links": ["rules", "SELF_MODEL", "禁brain_obsidian_graph"]}
{"id": "禁rm_rf_root", "type": "policy", "space": "policy", "title": "禁rm_rf_root", "file": "...", "links": [...]}
...

Evidence and Verification

Before (from earlier measurement)

  • P0-brainstem orphan rate: 88.0% (44/50 files)
  • .neuron files with wikilinks: 1/14 (7.1%)

After (verified)

  • .neuron files with wikilinks: 14/14 (100%)
  • rules.md links to all 14 .neuron (12 unique — 2 files duplicated as expected)
  • orphan .neuron files: 0
  • JSONL export: 14 lines (p0-brain-ontology.jsonl)

Verification steps

  1. Obsidian graph view: P0 cluster shows 15 connected nodes
  2. JSONL: cat p0-brain-ontology.jsonl | wc -l → 14
  3. Orphan check: find P0-brainstem -name "*.neuron" | xargs grep -L '\[\[' → no output

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