# LLM Wiki > Karpathy's LLM Wiki — build and maintain a persistent, interlinked markdown knowledge base. Ingest sources, query compiled knowledge, and lint for consistency. - Skill: `vamseeachanta/llm-wiki` (Agent Skill) - Install (CLI): `npx skillmds@latest add vamseeachanta/llm-wiki` - Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/llm-wiki/raw - Safety review: PASS (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - License: MIT - Author: vamseeachanta (https://skillmd.com/u/vamseeachanta) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/vamseeachanta/llm-wiki --- # Karpathy's LLM Wiki Build and maintain a persistent, compounding knowledge base as interlinked markdown files. Based on [Andrej Karpathy's LLM Wiki pattern](https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f). Unlike traditional RAG (which rediscovers knowledge from scratch per query), the wiki compiles knowledge once and keeps it current. Cross-references are already there. Contradictions have already been flagged. Synthesis reflects everything ingested. **Division of labor:** The human curates sources and directs analysis. The agent summarizes, cross-references, files, and maintains consistency. ## When This Skill Activates Use this skill when the user: - Asks to create, build, or start a wiki or knowledge base - Asks to ingest, add, or process a source into their wiki - Asks a question and an existing wiki is present at the configured path - Asks to lint, audit, or health-check their wiki - References their wiki, knowledge base, or "notes" in a research context - Wants to batch-ingest hundreds/thousands of documents into wiki format ## Wiki Location Configured via `skills.config.wiki.path` in `~/.hermes/config.yaml` (prompted during `hermes config migrate` or `hermes setup`): ```yaml skills: config: wiki: path: ~/wiki ``` Falls back to `~/wiki` default. The resolved path is injected when this skill loads — check the `[Skill config: ...]` block above for the active value. Before setting `wiki.path`, verify the target actually exists. A stale default like `~/wiki` is easy to leave behind even when the real wiki lives elsewhere. For the workspace-hub multi-wiki layout, the preferred root is usually: ```yaml skills: config: wiki: path: /mnt/local-analysis/workspace-hub/knowledge/wikis ``` This points at the domain-wiki root (`engineering/`, `marine-engineering/`, `maritime-law/`, `naval-architecture/`, etc.) rather than a single flat `~/wiki` folder. The wiki is just a directory of markdown files — open it in Obsidian, VS Code, or any editor. No database, no special tooling required. ## CLI Tool (workspace-hub) The `llm-wiki` CLI at `scripts/knowledge/llm_wiki.py` provides 6 commands for operating wikis programmatically. All commands use the pattern: ```bash uv run scripts/knowledge/llm_wiki.py --wiki ``` | Command | Purpose | |---------|---------| | `init ` | Scaffold a new domain wiki under `knowledge/wikis//` | | `status --wiki ` | Report page counts, source counts, link density | | `ingest --wiki ` | Copy source file + generate LLM processing instructions | | `query "..." --wiki ` | Keyword search across wiki pages with relevance ranking | | `lint --wiki ` | Health checks (orphans, empty pages, index consistency, link density) | | `batch-ingest --wiki --batch-size N` | Bulk-create source pages from metadata JSONL/JSON/YAML | **batch-ingest** is designed for scale: - Checkpoint-based resume (`.checkpoint.jsonl` in wiki root) - `--dry-run` for preview - Progress reporting every batch - Skips already-processed records - Used to ingest 22K conference papers → 12K source pages in one run - Proven: 100 records/batch, ~400 records per 10 seconds Location: `knowledge/wikis//` (not `~/wiki`). This is a multi-wiki ecosystem — multiple domain wikis coexist under `knowledge/wikis/`. Force-add to git despite `.gitignore` since wiki content is the compounding artifact. ## Architecture ### Multi-Wiki Pattern In workspace-hub, wikis are organized as a multi-domain ecosystem under `knowledge/wikis//`, not a single `~/wiki`. Each domain (marine-engineering, maritime-law, naval-architecture) has its own complete three-layer structure. Cross-wiki linking connects related topics across domains. ### Three Layers (per domain wiki) ``` knowledge/wikis// ├── AGENTS.md # Schema: conventions, structure rules, domain config ├── raw/ # Layer 1: Immutable source material │ ├── papers/ # PDFs, standards, papers │ ├── standards/ # Standards documents │ ├── articles/ # Web articles, clippings │ └── assets/ # Images, diagrams └── wiki/ # Layer 2: The LLM-maintained wiki ├── index.md # Content catalog with sectioned entries ├── log.md # Chronological action log (append-only) ├── overview.md # Domain synthesis summary ├── entities/ # Entity pages (things: equipment, orgs, vessels) ├── concepts/ # Concept pages (ideas: methods, principles) ├── sources/ # Source summary pages (one per ingested document) ├── comparisons/ # Filed query outputs └── visualizations/ # matplotlib plots, Marp slide decks ``` **Layer 1 — Raw Sources:** Immutable. The agent reads but never modifies these. **Layer 2 — The Wiki:** Agent-owned markdown files. Created, updated, and cross-referenced by the agent. **Layer 3 — The Schema:** `AGENTS.md` defines structure, conventions, and tag taxonomy. ### Scaling Pattern (learned from 12K+ source ingestion) - **Metadata-first approach**: Don't extract PDF content (hits 5-min timeouts on large files). Instead, read structured metadata (titles, topics, sizes) and create wiki source pages. - **Proven at scale**: 22K conference metadata records → 12K unique source pages, skipping 10K+ duplicates via checkpoint file. - **Batch size**: 100 records per batch, progress reported every batch. - **Checkpoint resume**: `.checkpoint.jsonl` tracks processed records by unique ID. - **Index management**: Updates index.md after each batch, not after every record. - **Git considerations**: Wiki pages must be force-added (`git add -f`) even if `.gitignore` excludes the wikis directory. Wiki content is the compounding artifact. - **Workspace-hub hook gotcha**: `knowledge/wikis//AGENTS.md` files are wiki schema/config files generated by `llm-wiki init`, not harness adapter files. If the repo hook `.Codex/hooks/check-Codex-md-limits.sh` applies the 20-line harness limit to all `AGENTS.md` paths, commits touching wiki `AGENTS.md` can fail with a false positive. The minimal safe fix is to exclude `^knowledge/wikis/` from that hook's staged-file filter so harness limits still apply to real adapter files while wiki schema files remain editable. ## Resuming an Existing Wiki (CRITICAL — do this every session) When the user has an existing wiki, **always orient yourself before doing anything**: ① **Read `AGENTS.md`** (or `SCHEMA.md`) — understand the domain, conventions, and tag taxonomy. ② **Read `index.md`** — learn what pages exist and their summaries. ③ **Scan recent `log.md`** — read the last 20-30 entries to understand recent activity. ```bash WIKI="${wiki_path:-$HOME/wiki}" # Orientation reads at session start read_file "$WIKI/SCHEMA.md" read_file "$WIKI/index.md" read_file "$WIKI/log.md" offset= ``` Only after orientation should you ingest, query, or lint. This prevents: - Creating duplicate pages for entities that already exist - Missing cross-references to existing content - Contradicting the schema's conventions - Repeating work already logged For large wikis (100+ pages), also run a quick `search_files` for the topic at hand before creating anything new. ## Initializing a New Wiki (via CLI) ```bash uv run scripts/knowledge/llm_wiki.py init ``` This scaffolds the full three-layer structure, creates `AGENTS.md` with domain-specific schema, initializes `index.md` and `log.md`, and creates the `raw/` and `wiki/` subdirectories. After scaffolding: 1. Add some sources: `ingest --wiki ` 2. For bulk: `batch-ingest metadata.jsonl --wiki --batch-size 100` 3. Check health: `lint --wiki ` ## Core Operations ### 1. Ingest When the user provides a source (URL, file, paste), integrate it into the wiki: ① **Capture the raw source:** - URL → use `web_extract` to get markdown, save to `raw/articles/` - PDF → use `web_extract` (handles PDFs), save to `raw/papers/` - Pasted text → save to appropriate `raw/` subdirectory - Name the file descriptively: `raw/articles/karpathy-llm-wiki-2026.md` ② **Discuss takeaways** with the user — what's interesting, what matters for the domain. (Skip this in automated/cron contexts — proceed directly.) ③ **Check what already exists** — search index.md and use `search_files` to find existing pages for mentioned entities/concepts. This is the difference between a growing wiki and a pile of duplicates. ④ **Write or update wiki pages:** - **New entities/concepts:** Create pages only if they meet the Page Thresholds in SCHEMA.md (2+ source mentions, or central to one source) - **Existing pages:** Add new information, update facts, bump `updated` date. When new info contradicts existing content, follow the Update Policy. - **Cross-reference:** Every new or updated page must link to at least 2 other pages via `[[wikilinks]]`. Check that existing pages link back. - **Tags:** Only use tags from the taxonomy in SCHEMA.md ⑤ **Update navigation:** - Add new pages to `index.md` under the correct section, alphabetically - Update the "Total pages" count and "Last updated" date in index header - Append to `log.md`: `## [YYYY-MM-DD] ingest | Source Title` - List every file created or updated in the log entry ⑥ **Report what changed** — list every file created or updated to the user. A single source can trigger updates across 5-15 wiki pages. This is normal and desired — it's the compounding effect. ### 2. Query When the user asks a question about the wiki's domain: ① **Read `index.md`** to identify relevant pages. ② **For wikis with 100+ pages**, also `search_files` across all `.md` files for key terms — the index alone may miss relevant content. ③ **Read the relevant pages** using `read_file`. ④ **Synthesize an answer** from the compiled knowledge. Cite the wiki pages you drew from: "Based on [[page-a]] and [[page-b]]..." ⑤ **File valuable answers back** — if the answer is a substantial comparison, deep dive, or novel synthesis, create a page in `queries/` or `comparisons/`. Don't file trivial lookups — only answers that would be painful to re-derive. ⑥ **Update log.md** with the query and whether it was filed. ### 3. Lint When the user asks to lint, health-check, or audit the wiki: ① **Orphan pages:** Find pages with no inbound `[[wikilinks]]` from other pages. ```python # Use execute_code for this — programmatic scan across all wiki pages # Scan all .md files in entities/, concepts/, comparisons/, queries/ # Extract all [[wikilinks]] — build inbound link map # Pages with zero inbound links are orphans ``` ② **Broken wikilinks:** Find `[[links]]` that point to pages that don't exist. ③ **Index completeness:** Every wiki page should appear in `index.md`. Compare the filesystem against index entries. ④ **Frontmatter validation:** Every wiki page must have all required fields (title, created, updated, type, tags, sources). Tags must be in the taxonomy. ⑤ **Stale content:** Pages whose `updated` date is >90 days older than the most recent source that mentions the same entities. ⑥ **Contradictions:** Pages on the same topic with conflicting claims. Look for pages that share tags/entities but state different facts. ⑦ **Page size:** Flag pages over 200 lines — candidates for splitting. ⑧ **Tag audit:** List all tags in use, flag any not in the SCHEMA.md taxonomy. ⑨ **Log rotation:** If log.md exceeds 500 entries, rotate it. ⑩ **Report findings** with specific file paths and suggested actions, grouped by severity (broken links > orphans > stale content > style issues). ⑪ **Append to log.md:** `## [YYYY-MM-DD] lint | N issues found` ### 4. Bulk Ingest (CLI-based) For large-scale ingestion (100+ sources), use the `llm-wiki batch-ingest` CLI: ```bash # Dry-run first to preview uv run scripts/knowledge/llm_wiki.py batch-ingest metadata.jsonl --wiki --batch-size 100 --dry-run # Then run for real (resume-safe via .checkpoint.jsonl) uv run scripts/knowledge/llm_wiki.py batch-ingest metadata.jsonl --wiki --batch-size 100 ``` The CLI handles: - ✅ Checkpoint-based resume (safe to interrupt/restart) - ✅ Progress reporting every batch — 100 records per batch at ~400 records per 10s - ✅ Skip already-processed records (10K+ duplicates in a 22K run) - ✅ Batch index.md/log.md updates (efficient) - ✅ `--dry-run` mode to preview filenames and counts ### 5. Seed Migration (YAML → Wiki) For structured YAML knowledge seeds in `knowledge/seeds/`: 1. Parse the YAML to extract entries 2. Group entries by domain/category 3. For each entry: create entity/concept/source page 4. Cross-link with existing wiki pages 5. Update index.md with all migrated entries 6. Append structured entries to log.md Proven pattern: 18 mooring failure entries → 4 wiki pages (source + 2 concepts + 1 entity) 10 law cases + 6 conventions → 20 wiki pages with cross-references ## Working with the Wiki ### Searching ```bash # Find pages by content search_files "transformer" path="$WIKI" file_glob="*.md" # Find pages by filename search_files "*.md" target="files" path="$WIKI" # Find pages by tag search_files "tags:.*alignment" path="$WIKI" file_glob="*.md" # Recent activity read_file "$WIKI/log.md" offset= ``` ### Seed Migration Pattern For structured YAML seeds (like `knowledge/seeds/naval-architecture-resources.yaml`): 1. **Parse YAML categories** (textbooks, hydrostatics, portals, ship plans, etc.) 2. **Create concept pages** for each major topic domain (5-6 pages) 3. **Create source pages** for each individual resource (17-36 pages per seed) 4. **Update index.md** with structured tables 5. **Update log.md** with migration entry This approach is much faster than full PDF extraction and creates structured wiki pages that can be enhanced later with LLM content. ### Cross-Wiki Linking When managing multiple domain wikis, look for natural connections: - Deepwater Horizon → marine-engineering (lng-carrier-mooring) + maritime-law (OPA 90) - Mooring failures → marine-eng + naval-arch stability concepts - Classification rules → naval-arch + maritime-law liability conventions ## Obsidian Integration The wiki directory works as an Obsidian vault out of the box: - `[[wikilinks]]` render as clickable links - Graph View visualizes the knowledge network - YAML frontmatter powers Dataview queries - The `raw/assets/` folder holds images referenced via `![[image.png]]` For best results: - Set Obsidian's attachment folder to `raw/assets/` - Enable "Wikilinks" in Obsidian settings (usually on by default) - Install Dataview plugin for queries like `TABLE tags FROM "entities" WHERE contains(tags, "company")` ## Pitfalls - **Automated wiki health cron gotchas** — For workspace-hub `scripts/knowledge/wiki_health_cron.py` runs, verify the domain list before trusting the report. Hidden/operational directories under `knowledge/wikis/` (for example `.planning/`) are not domain wikis and should be skipped. Directories that contain only `AGENTS.md` or otherwise lack `wiki/` should be reported as critical missing scaffold/index/log issues, not allowed to crash the cron before reports are written. Health reports under `knowledge/wikis/health-reports/` may be ignored by `.gitignore`; use `git add -f knowledge/wikis/health-reports/health-YYYY-MM-DD.{json,md}` when committing them. - **Never modify files in `raw/`** — sources are immutable. Corrections go in wiki pages. - **Always orient first** — read SCHEMA + index + recent log before any operation in a new session. Skipping this causes duplicates and missed cross-references. - **Always update index.md and log.md** — skipping this makes the wiki degrade. These are the navigational backbone. - **Don't create pages for passing mentions** — follow the Page Thresholds in SCHEMA.md. A name appearing once in a footnote doesn't warrant an entity page. - **Don't create pages without cross-references** — isolated pages are invisible. Every page must link to at least 2 other pages. - **Frontmatter is required** — it enables search, filtering, and staleness detection. - **Tags must come from the taxonomy** — freeform tags decay into noise. Add new tags to SCHEMA.md first, then use them. - **Keep pages scannable** — a wiki page should be readable in 30 seconds. Split pages over 200 lines. Move detailed analysis to dedicated deep-dive pages. - **Ask before mass-updating** — if an ingest would touch 10+ existing pages, confirm the scope with the user first. - **Rotate the log** — when log.md exceeds 500 entries, rename it `log-YYYY.md` and start fresh. The agent should check log size during lint. - **Handle contradictions explicitly** — don't silently overwrite. Note both claims with dates, mark in frontmatter, flag for user review. - **PDF extraction timeout** — Large PDFs hit 5-min sandbox timeouts. Use metadata-first approach for speed. Full extraction = enhancement when async workers exist. - **Git force-add required** — Wiki dirs may be in `.gitignore`. Use `git add -f` to commit content. Wiki content is the compounding artifact and must be tracked. - **Batch size trade-off** — 100 records/batch balances speed with index update frequency. Smaller = more frequent updates, slower. Larger = fewer index commits, risk more on crash. - **Low link density early** — Newly created wikis naturally have low link density. This resolves as cross-references grow during normal ingest operations. - **YAML seed migration is fast** — Converting structured YAML to wiki pages is 10x faster than PDF extraction. Use this pattern whenever seeds exist.