Agent skill

Personal Knowledge Wiki

Maintains a structured Markdown knowledge base in a knowledge/ folder by ingesting shared articles, synthesizing conversations and answering questions from it.

MITAuto-check passedKnowledge Management

Install Personal Knowledge Wiki

skills CLI

$ npx skills add zhayujie/CowAgent --skill knowledge-wiki -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install zhayujie/CowAgent knowledge-wiki --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/zhayujie/CowAgent.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/knowledge-wiki .claude/skills/knowledge-wiki && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "knowledge-wiki" agent skill from https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki into .claude/skills/knowledge-wiki/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "knowledge-wiki", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add zhayujie/CowAgent --skill knowledge-wiki -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install zhayujie/CowAgent knowledge-wiki --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhayujie/CowAgent.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/knowledge-wiki .agents/skills/knowledge-wiki && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "knowledge-wiki" agent skill from https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki into .agents/skills/knowledge-wiki/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "knowledge-wiki", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add zhayujie/CowAgent --skill knowledge-wiki -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install zhayujie/CowAgent knowledge-wiki --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhayujie/CowAgent.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/knowledge-wiki .cursor/skills/knowledge-wiki && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "knowledge-wiki" agent skill from https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki into .cursor/skills/knowledge-wiki/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "knowledge-wiki", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/zhayujie/CowAgent.git --path skills/knowledge-wiki

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add zhayujie/CowAgent --skill knowledge-wiki -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install zhayujie/CowAgent knowledge-wiki --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhayujie/CowAgent.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/knowledge-wiki .gemini/skills/knowledge-wiki && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "knowledge-wiki" agent skill from https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki into .gemini/skills/knowledge-wiki/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "knowledge-wiki", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install zhayujie/CowAgent knowledge-wiki

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add zhayujie/CowAgent --skill knowledge-wiki -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/zhayujie/CowAgent.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/knowledge-wiki .github/skills/knowledge-wiki && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "knowledge-wiki" agent skill from https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki into .github/skills/knowledge-wiki/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "knowledge-wiki", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add zhayujie/CowAgent --skill knowledge-wiki -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install zhayujie/CowAgent knowledge-wiki --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/zhayujie/CowAgent.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/knowledge-wiki .opencode/skills/knowledge-wiki && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "knowledge-wiki" agent skill from https://github.com/zhayujie/CowAgent/tree/master/skills/knowledge-wiki into .opencode/skills/knowledge-wiki/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "knowledge-wiki", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: knowledge-wiki
GitHub stars: 47k
Token cost: ~924 tokens
SKILL.md length: 367 words
Files: 1
Skills in repo: 3
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Maintains a structured Markdown knowledge base in a knowledge/ folder by ingesting shared articles, synthesizing conversations and answering questions from it.

Works in 3 steps: Ingest — User shares an article,… → Synthesize — Conversation produces… → Query — User asks about accumulated…
Saving an article or document you share as structured notes
SKILL.md covers Core Operations, Page Format, Index Format… and Log Format (knowledge/log.md), plus 1 more section
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

The skill keeps a persistent wiki in the knowledge/ directory and has three operations. Ingest reads an article or document you share, extracts key facts, picks or creates a category subfolder, writes a page and updates the index and log. Synthesize turns the insights from a conversation into a page and adds cross-references. Query checks the index for relevant pages and reads them, with memory search as a supplement.

Pages are Markdown files with lowercase kebab-case names, one topic per page and a Source line recording where the material came from. The index is a flat list of links with one-line summaries grouped by category, and the log is append-only with dated ingest and synthesize entries. Pages link to each other, and links are added only to pages that already exist, so the wiki forms a connected graph.

When your agent uses it

Saving an article or document you share as structured notes
Preserving insights from a conversation as a wiki page
Answering a question from the knowledge already collected

Example prompts

“Add this article on vector databases to my knowledge wiki.”
“Save what we just worked out about our deployment process as a wiki page.”
“What does my knowledge base say about prompt caching?”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

Ingest — User shares an article, document, or resource
Synthesize — Conversation produces valuable structured knowledge
Query — User asks about accumulated knowledge

What it can do on your machine

Read from SKILL.md and the folder at commit 7142631. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Personal Knowledge Wiki loads about 924 tokens when it runs. Until then it costs about 64 tokens; SKILL.md has 367 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~64
When it runs · the whole SKILL.md, loaded when a task matches: ~924

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from zhayujie/CowAgent at commit 7142631, republished under its MIT licence (© zhayujie). 367 words, ~924 tokens.

Download SKILL.mdSave it as .claude/skills/knowledge-wiki/SKILL.md (or your agent's skills folder).

name: knowledge-wiki
description: Manage the personal knowledge wiki. Use when the user shares articles, documents, or asks to organize knowledge; when a conversation produces insights worth preserving as structured knowledge; or when the user asks about the knowledge base.

Knowledge Wiki

Maintain a persistent, structured knowledge base in the knowledge/ directory.

Core Operations

1. Ingest — User shares an article, document, or resource

Read and understand the source material
Extract key facts, insights, and structured knowledge
Determine the appropriate subdirectory:
- Read knowledge/index.md to see existing categories
- If a matching category exists, follow that structure
- If not, create a new subdirectory with a clear name
Create the knowledge page: knowledge/<category>/<slug>.md
Update knowledge/index.md and append to knowledge/log.md

2. Synthesize — Conversation produces valuable structured knowledge

Create a knowledge page under the appropriate category
Update related pages with cross-references
Update knowledge/index.md and knowledge/log.md

3. Query — User asks about accumulated knowledge

Check knowledge/index.md (already in your context) for relevant pages
Read specific pages with the read tool
Supplement with memory_search if needed

Page Format

markdown

# Page Title

> Source: <URL or description of the original material>

Content here. Cross-reference related pages with markdown links:
[Related Page](../category/related-page.md)

## Key Points

- ...

## Related

- [Page A](../category/page-a.md) — how it relates
- [Page B](../category/page-b.md) — how it relates

The > Source: line records where the knowledge came from (URL, document name, conversation, etc.). Always include it when the material originates from a specific source.

Cross-references build a knowledge graph. When creating or updating a page, link to related pages and update those pages to link back. Only link to pages that already exist — if a concept deserves its own page, create it first, then add the link.

Show full SKILL.md (159 more words)Show less

Index Format (`knowledge/index.md`)

Flat list, one line per page: [Title](path) — one-line summary. Group by category (matching subdirectories). No tables, no emoji.

markdown

# Knowledge Index

## Category A
- [Page Title](category-a/page-slug.md) — one-line summary

## Category B
- [Page Title](category-b/page-slug.md) — one-line summary

Category names and structure are flexible — follow whatever organization already exists in the index, or create new categories based on the content.

Log Format (`knowledge/log.md`)

Append-only, newest at bottom:

markdown

## [YYYY-MM-DD] ingest | Page Title
## [YYYY-MM-DD] synthesize | Page Title

Guidelines

File naming: lowercase kebab-case (e.g. machine-learning.md)
One topic per page: link between pages rather than duplicating
Update, don't duplicate: if a page exists, update it
Cross-reference: every page should link to related pages; keep the knowledge graph connected
Index is mandatory: always update knowledge/index.md after any change
Be concise: capture essence, not copy entire sources
Full paths in replies: when referencing knowledge files in conversation replies, use the full path from workspace root (e.g. [Title](knowledge/<category>/<slug>.md)), not relative paths. Relative paths are only for cross-references inside knowledge pages themselves.
Cite sources: when answering based on knowledge pages, include links to the relevant pages so the user can explore further.

Files

Just SKILL.md in skills/knowledge-wiki of zhayujie/CowAgent.

Open the folder on GitHubat commit 7142631

Compare with similar skills

Personal Knowledge Wiki next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Personal Knowledge Wiki compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Personal Knowledge Wiki this skillzhayujie/CowAgent	47k	—	~924	Automated safety check: Pass	MIT	today
LLM Wikilewislulu/llm-wiki-skill	655	—	~3.7k	Automated safety check: Pass	None	5 mo ago
LLM WikiCharlesHoskinson/sevenlayer	116	—	~1.5k	Automated safety check: Pass	Custom licence	1 mo ago
Wiki Vault Queryjason-effi-lab/karpathy-llm-wiki-vault	716	—	~383	Automated safety check: Pass	None	5 mo ago
Obsidian Wiki Log FoldAgriciDaniel/claude-obsidian	15k	1 repos	~1.2k	Automated safety check: Pass	MIT	28 days ago
LLM Wiki Knowledge GraphEgonex-AI/Understand-Anything	86k	1 repos	~1.5k	Automated safety check: Pass	MIT	2 days ago

Similar skills

LLM Wiki
lewislulu/llm-wiki-skill
Build and maintain a Karpathy-style LLM knowledge base — a self-compiling Obsidian markdown wiki where an Agent ingests raw sources, compiles cross-linked concept/entity/summary pages, answers…
655 GitHub stars~3.7k tokensUpdated 5 mo ago
Knowledge ManagementAuto-check passed
LLM Wiki
CharlesHoskinson/sevenlayer
Builds and maintains a persistent, interlinked Obsidian-compatible markdown knowledge wiki in a git repo via three operations — ingest a source into linked pages, answer a question from the…
116 GitHub stars~1.5k tokensUpdated 1 mo ago
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Wiki Vault Query
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Answers questions from a local Obsidian-style wiki by reading its index first, then the relevant pages, and replying with wiki-link citations instead of model memory.
716 GitHub stars~383 tokensUpdated 5 mo ago
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Obsidian Wiki Log Fold
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Creates a bounded, extractive rollup of recent Obsidian wiki log entries, previewed by default, with one optional apply step and no changes to child pages.
15k GitHub starsUsed in 1 repo~1.2k tokens
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LLM Wiki Knowledge Graph
Egonex-AI/Understand-Anything
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Questions about Personal Knowledge Wiki

What does Personal Knowledge Wiki do?

Maintains a structured Markdown knowledge base in a knowledge/ folder by ingesting shared articles, synthesizing conversations and answering questions from it. The skill keeps a persistent wiki in the knowledge/ directory and has three operations. Ingest reads an article or document you share, extracts key facts, picks or creates a category subfolder, writes a page and updates the index and log.

When should I use Personal Knowledge Wiki?

Personal Knowledge Wiki fits situations like: saving an article or document you share as structured notes; preserving insights from a conversation as a wiki page; answering a question from the knowledge already collected.

How do I install Personal Knowledge Wiki in Claude Code?

Run `npx skills add zhayujie/CowAgent --skill knowledge-wiki -a claude-code`. Or copy the skill folder (skills/knowledge-wiki in zhayujie/CowAgent) into .claude/skills/knowledge-wiki in your project. Claude Code loads it when a task matches its description.

How do I install Personal Knowledge Wiki in Codex?

Run `npx skills add zhayujie/CowAgent --skill knowledge-wiki -a codex`. Or copy the skill folder (skills/knowledge-wiki in zhayujie/CowAgent) into .agents/skills/knowledge-wiki in your project. Codex loads it when a task matches its description.

Can I use Personal Knowledge Wiki in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add zhayujie/CowAgent --skill knowledge-wiki -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/knowledge-wiki, .gemini/skills/knowledge-wiki, .github/skills/knowledge-wiki and .opencode/skills/knowledge-wiki in your project.

What does Personal Knowledge Wiki need to run?

SKILL.md names no scripts, command-line tools or credentials: Personal Knowledge Wiki is instructions for the agent only.

Does Personal Knowledge Wiki access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Personal Knowledge Wiki safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Personal Knowledge Wiki use?

Personal Knowledge Wiki is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Personal Knowledge Wiki use?

About 924 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Personal Knowledge Wiki?

Skills that share tags, products or a category with Personal Knowledge Wiki: LLM Wiki (lewislulu/llm-wiki-skill, 655 stars), LLM Wiki (CharlesHoskinson/sevenlayer, 116 stars), Wiki Vault Query (jason-effi-lab/karpathy-llm-wiki-vault, 716 stars) and Obsidian Wiki Log Fold (AgriciDaniel/claude-obsidian, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Personal Knowledge Wiki?

zhayujie (a GitHub user) maintains it in zhayujie/CowAgent, which has 47,273 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 8, 2026.

Source: zhayujie/CowAgent on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Personal Knowledge Wiki

Install Personal Knowledge Wiki

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Knowledge Wiki

Core Operations

1. Ingest — User shares an article, document, or resource

2. Synthesize — Conversation produces valuable structured knowledge

3. Query — User asks about accumulated knowledge

Page Format

Index Format (`knowledge/index.md`)

Log Format (`knowledge/log.md`)

Guidelines

Files

Compare with similar skills

Similar skills

LLM Wiki

LLM Wiki

Wiki Vault Query

Obsidian Wiki Log Fold

LLM Wiki Knowledge Graph

Wiki Builder

More from zhayujie/CowAgent

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Skill Creator

Questions about Personal Knowledge Wiki

Install Personal Knowledge Wiki

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Knowledge Wiki

Core Operations

1. Ingest — User shares an article, document, or resource

2. Synthesize — Conversation produces valuable structured knowledge

3. Query — User asks about accumulated knowledge

Page Format

Index Format (knowledge/index.md)

Log Format (knowledge/log.md)

Guidelines

Files

Compare with similar skills

Similar skills

More from zhayujie/CowAgent

Related

Questions about Personal Knowledge Wiki

Index Format (`knowledge/index.md`)

Log Format (`knowledge/log.md`)