Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add NulightJens/ai-second-brain-skills --skill llm-wiki-setupgit clone --depth 1 https://github.com/NulightJens/ai-second-brain-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/nulightjens/ai-second-brain-skills/llm-wiki-setup)<a href="https://agentmods.dev/skills/nulightjens/ai-second-brain-skills/llm-wiki-setup"><img src="https://agentmods.dev/badge/skills/nulightjens/ai-second-brain-skills/llm-wiki-setup/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/nulightjens/ai-second-brain-skills/llm-wiki-setup"><img src="https://agentmods.dev/badge/skills/nulightjens/ai-second-brain-skills/llm-wiki-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00127 | $0.01214 |
| Opus 5.5 | $0.00051 | $0.00486 |
| Sonnet 5.5 | $0.00025 | $0.00243 |
| Haiku 4.5 | $0.00013 | $0.00121 |
Grade A, and why
llm-wiki-setup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.
llm-wiki-setup
Install the Karpathy LLM wiki pattern into a folder. One pass, three questions, a working vault a beginner can use immediately.
What gets created
<vault>/
├── CLAUDE.md # the map — routing table, schema, workflows, guardrails
├── AGENTS.md # minimal mirror for Codex and other non-Claude agents
├── .gitignore
├── raw/ # immutable source documents (LLM reads, never writes)
│ └── .gitkeep
└── wiki/ # LLM-owned markdown
├── index.md # catalog of every page, organized by category
└── log.md # chronological operation log with grep-friendly prefix
Optional additions the user may request at setup time:
wiki/hot.md— 500-char rolling buffer for fast recent-context lookup (executive-assistant use cases)- Nested wiki subfolders:
wiki/entities/,wiki/concepts/,wiki/sources/,wiki/analyses/
Setup flow
Ask these three questions in a single message:
- Vault path? Absolute path. Will be created if it doesn't exist.
- Flat or nested wiki? Flat is the default (Karpathy's preference — cleaner, grep-friendly). Nested adds subfolders for larger or mixed-topic vaults.
- Include hot cache? Optional
wiki/hot.mdrolling buffer. Default: no.
Build procedure
- Safety check. If
<vault>/CLAUDE.mdor<vault>/wiki/already exists, stop and ask the user — do not overwrite without explicit confirmation. - Create directories.
<vault>,<vault>/raw/,<vault>/wiki/. For nested layout, also createwiki/entities/,wiki/concepts/,wiki/sources/,wiki/analyses/. - Install the schema. Copy
templates/CLAUDE.md→<vault>/CLAUDE.md, replacing{{LAYOUT}}withflatornested. Copytemplates/AGENTS.md→<vault>/AGENTS.md. - Scaffold the wiki. Copy
templates/index.md→<vault>/wiki/index.md. Copytemplates/log.md→<vault>/wiki/log.md, replacing{{DATE}}with today's date (YYYY-MM-DD) and{{LAYOUT}}with the layout choice. - Optional extras. If hot cache was requested, create
<vault>/wiki/hot.mdwith a header comment only. Create<vault>/raw/.gitkeep. - Gitignore. If
<vault>/.gitignoredoes not exist, copytemplates/gitignore→<vault>/.gitignore. If it already exists, append any missing lines from the template — do not overwrite. - Git init. If
<vault>is not already a git repo:git init && git add . && git commit -m "chore: initialize LLM wiki". If it is already a git repo with a clean working tree, stage the new files and commit them separately aschore: add LLM wiki scaffold. If the repo has uncommitted changes, stop and ask the user how to proceed. - Verify. Read
<vault>/CLAUDE.mdback and confirm the{{LAYOUT}}placeholder was replaced. If it wasn't, fix it and amend (or create a follow-up commit).
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 76 lines · 127 tokens per session scan A 2a8d4e3489c0
llm-wiki-setup is a skill published in the GitHub repository NulightJens/ai-second-brain-skills (103 stars, last pushed 6mo ago), licensed MIT. It adds 127 tokens to every session and 1,214 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
knowledge-ingest
Ingest documents, articles, conversations, or supplied text into Knowledge with retained originals, sourced claims, entity updates, timelines, and cross-links; also learn durable lessons from a set of conversations, transcripts, or past sessions (/learn), including the Learn from conversations and Learn from Memory…
mem0-oss-to-platform
Plan, then execute, a migration of a project from the mem0 open-source / self-hosted SDK (local Memory class) to the mem0 Platform / hosted SDK (MemoryClient). TRIGGER when: the developer wants to move, switch, or migrate mem0 off OSS/self-hosted to the hosted API, e.g. "migrate my mem0 setup to the platform", "switch…
forget
Remove a personal fact, preference, relationship detail, topic, or prior event from Muse's active memory and stop existing copies or automations from bringing it back. Use for explicit requests such as 'forget that', 'don't remember this about me', or 'remove that from your memory'. Do not use when 'forget it' merely…
Cortex
LifeOS memory, prior-session recall, and learning capture. USE WHEN capture this learning, document this learning, what did we learn recently, recent learnings, cortex, knowledge, knowledge base, search knowledge, what do we know about, archive, harvest, knowledge status, develop note, add to knowledge, add a people…
memory
Use when the user asks to remember, recall, forget, update, search, or inspect durable OpenSquilla memory, including profile facts in USER.md and long-term notes in MEMORY.md or memory//.md.
ha-data-stores
Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…