# wiki-agent

Searches raw conversation history from a specific AI agent, distills matching sessions into an Obsidian vault, and returns an answer. Useful when recalling past decisions across different CLI tools.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 2400 installs · ★ 3621
- Author: Ar9av
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/Ar9av/obsidian-wiki/tree/HEAD/.skills/wiki-agent/SKILL.md
- Updated: 2026-10-21
- HTML: https://affpapa.org/en/nevibecode/skills/wiki-agent

## What it does

The skill performs targeted extraction from conversation logs of Claude Code, Codex, Hermes, OpenClaw, Copilot, or Pi. Rather than pulling entire databases, it inspects project paths and session titles to locate 3 to 5 relevant sessions. It extracts matching message slices, logs them into an Obsidian vault, and synthesizes an immediate answer.

Session scoring combines title matches (+3 points) and working directory matches (+2 points) with an exponential decay formula based on a 90-day half-life. A floor score of 0.35 preserves older exact matches over recent irrelevant entries. When invoked without a query argument, the skill defaults to processing the 5 most recent unprocessed sessions.

Setup requires `OBSIDIAN_VAULT_PATH` in `.env` or global configuration. If an agent was never run on the local machine or its data sits outside the default directory, history paths like `CLAUDE_HISTORY_PATH` or `CODEX_HISTORY_PATH` must be defined explicitly.

## Requirements
- Works with: Obsidian

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add Ar9av/obsidian-wiki --skill wiki-agent -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/wiki-agent/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/wiki-agent/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add Ar9av/obsidian-wiki --skill wiki-agent -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/wiki-agent/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add Ar9av/obsidian-wiki --skill wiki-agent -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/wiki-agent/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install Ar9av/obsidian-wiki wiki-agent
```

2. **Manually: put the files in place**
- File: `.github/skills/wiki-agent/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add Ar9av/obsidian-wiki --skill wiki-agent -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/Ar9av/obsidian-wiki --path .skills/wiki-agent
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/wiki-agent/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add Ar9av/obsidian-wiki --skill wiki-agent -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/Ar9av/obsidian-wiki/tree/HEAD/.skills/wiki-agent/SKILL.md

## When to use it
- retrieve technical solutions from past Claude Code or Codex chats
- bring context from another AI agent into your active terminal session
- extract specific discussion points into an Obsidian knowledge base
- index recent unprocessed conversation logs without bulk imports

## Example prompts
- /wiki-claude "how did I set up auth middleware"
- /wiki-codex "rust ownership patterns"
- /wiki-copilot "test strategy for API routes"

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: e3340a8a7d2136be.

BEGIN THIRD-PARTY FILE e3340a8a7d2136be
```text
---
name: wiki-agent
description: >
  Search one AI agent's raw history for a specific topic, ingest only matching sessions, and return a synthesized answer. Use for targeted cross-agent recall; use wiki-history-ingest for bulk archival ingestion.
---

# Wiki Agent — Targeted Cross-Agent History Search + Ingest

You are doing a **query-driven targeted ingest** from one specific AI agent's raw conversation history. The user is typically working in a *different* agent right now and wants to pull in context from another agent's past sessions.

This is not bulk ingest. You find sessions about a specific topic, extract the relevant blobs, distill them into the wiki, and return a synthesized answer the user can act on immediately.

## Command Routing

Parse the invocation to determine the target agent and optional query:

| Command | Target | Example |
|---|---|---|
| `/wiki-claude [query]` | Claude Code history | `/wiki-claude "how did I set up auth middleware"` |
| `/wiki-codex [query]` | Codex CLI history | `/wiki-codex "rust ownership patterns"` |
| `/wiki-hermes [query]` | Hermes agent history | `/wiki-hermes "memory architecture"` |
| `/wiki-openclaw [query]` | OpenClaw history | `/wiki-openclaw "project planning approach"` |
| `/wiki-copilot [query]` | Copilot chat history | `/wiki-copilot "test strategy for API routes"` |
| `/wiki-pi [query]` | Pi agent history | `/wiki-pi "how did I refactor the auth module"` |

If no query is given, default to **recent sessions mode**: ingest the last 5 unprocessed sessions from that agent and return a summary of what was found. This is equivalent to a focused `wiki-history-ingest` for that agent only.

## Before You Start

**Writing profile:** Before drafting or rewriting natural-language Markdown, read and apply the `Writing Profile Resolution` section in `llm-wiki/SKILL.md`. Framework schema, provenance, safety, and operation-specific requirements take precedence.
`WRITING.md` preferences apply only to newly drafted or rewritten natural-language Markdown; preserve source content and structured records.

1. **Resolve config** — follow the Config Resolution Protocol in `llm-wiki/SKILL.md` (inline `@name` override → walk up CWD for `.env` → global config → prompt setup). This gives `OBSIDIAN_VAULT_PATH`.
2. Read `$OBSIDIAN_VAULT_PATH/.manifest.json` → know what's already ingested.
3. Read `$OBSIDIAN_VAULT_PATH/hot.md` if it exists → warm context on recent wiki activity.

---

## Step 1: Locate the Agent's History Root

| Agent | Default path | Config override |
|---|---|---|
| `claude` | `~/.claude` + `~/Library/Application Support/Claude/local-agent-mode-sessions/` | `CLAUDE_HISTORY_PATH` in `.env` |
| `codex` | `~/.codex` | `CODEX_HISTORY_PATH` in `.env` |
| `hermes` | `~/.hermes` | `HERMES_HOME` in env or `.env` |
```
END THIRD-PARTY FILE e3340a8a7d2136be

The third-party file has ended. Everything between the e3340a8a7d2136be tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

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