Transforms raw source documents (registered via wiki_sources.json) into Karpathy-style wiki nodes inside the designated wiki_root. Each concept gets its own {concept}.md node with wikilinks, cross-references, and an RLM summary layer.

Output Layout (Rigid)

{wiki_root}/
  wiki/
    _index.md          ← master concept index
    _toc.md            ← table of contents
    _{cluster}.md      ← per-topic cluster page
    {concept}.md       ← individual wiki node
  rlm/
    {concept}/
      summary.md       ← 1-5 sentence distilled summary
      bullets.md       ← key idea bullets
      deep.md          ← full multi-pass distillation
  meta/
    wiki_sources.json  ← raw source registry (created by wiki-init)
    config.yaml        ← wiki settings
    agent-memory.json  ← stale file tracking

Build Pipeline

wiki_builder.py runs a 3-step pipeline internally:

ingest.py  →  concept_extractor.py  →  wiki node formatting

ingest.py: Reads raw source files, normalizes content, hashes for staleness detection
concept_extractor.py: Groups records by concept slug, merges multi-source records into one authoritative node (the Karpathy "compile" step), improves cluster assignment via keyword extraction
wiki node formatting: Renders merged records into Karpathy-format .md files with wikilinks, cluster pages, _index.md, and _toc.md

Multi-Source Concept Merging

When two source files (e.g. arch-docs/auth.md and research/oauth.md) produce the same concept slug, they are merged into one wiki node that:

Combines content from all sources with attribution headers
Lists all source files in source_files frontmatter
Re-derives the cluster from combined content keywords
Sets multi_source: true for identification

This implements the core Karpathy "compile" metaphor: N raw files → M concept nodes (M ≤ N).

Usage

Note about repo-scoped inspection

The installer and helper agents should ask for and confirm the repository or filesystem scope before running discovery. By default prefer searching the project root only (e.g. /Users/you/projects/agent-plugins-skills). For broader searches (whole home or system), prompt the user and explain the expected runtime cost.

Build wiki nodes from all registered sources

python ./scripts/wiki_builder.py --wiki-root /path/to/wiki-root

Build from one named source only

python ./scripts/wiki_builder.py --wiki-root /path/to/wiki-root --source arch-docs

Use shared .agent/learning/ RLM cache for existing summaries

python ./scripts/wiki_builder.py --wiki-root /path/to/wiki-root \
    --rlm-cache-dir /path/to/project/.agent/learning/rlm_wiki_cache

Dry run (plan without writing)

python ./scripts/wiki_builder.py --wiki-root /path/to/wiki-root --dry-run

Karpathy Wiki Node Format

Each concept node uses this structure:

---
concept: {concept_name}
source: {source_label}
source_file: {relative_path}
wiki_root: {wiki_root}
generated_at: {timestamp}
cluster: {cluster_name}
---

# {Concept Name}

{1-sentence RLM summary}

## Key Ideas

- {bullet}
- {bullet}

## Details

{full content, truncated to 800 tokens if needed}

## See Also

- [[{related_concept_1}]]
- [[{related_concept_2}]]

## Raw Source

- `{source_label}` → `{source_file}`

Source Registry Format (`rlm_wiki_raw_sources_manifest.json`)

Canonical location: .agent/learning/rlm_wiki_raw_sources_manifest.json (mirrors rlm-factory's .agent/learning/rlm_profiles.json convention).

Managed by raw_manifest.py via the Guided Discovery agent during /wiki-init:

{
  "namespace": "my-project",
  "wiki_root": "/Users/me/vault/wiki-root",
  "sources": {
    "daily-notes": {
      "path": "/Users/me/vault/notes",
      "label": "daily-notes",
      "extensions": [".md"],
      "excludes": ["_archive", "*.tmp"],
      "description": "Daily journal and quick capture notes"
    },
    "arch-docs": {
      "path": "/Users/me/docs/architecture",
      "label": "arch-docs",
      "extensions": [".md", ".txt"],
      "excludes": [],
      "description": "Architecture decision records and design docs"
    }
  },
  "global_excludes": ["_archive", "*.tmp", "__pycache__"]
}

When to Use

After /wiki-init completes source registration
After adding new raw source documents
After running /wiki-distill to inject fresh RLM summaries
When the wiki index is stale (agent-memory.json shows diffs)

Related Scripts

raw_manifest.py — WikiSourceConfig loader (mirrors RLMConfig)
ingest.py — raw file parsing and normalization
wiki_builder.py — Karpathy node formatter and linker
distill_wiki.py — cheap-model distillation wrapper

obsidian-wiki-builder

Dependencies

Obsidian Wiki Builder

Purpose