obsidian-second-brain

分类: 文档与知识管理 | 上传者: eugeniughelbur | 下载: 0 | 版本: v1.0（最新）
将任何黑曜石金库作为活生生的第二大脑来操作。每当用户要求 Claude 读取、写入、更新、搜索或管理他们的黑曜石保险库时，请使用此技能 - 包括保存对话笔记、创建每日条目、更新看板、记录开发工作、管理人员笔记、捕获决策、跟踪交易或维护任何保险库结构。当用户想要从头开始引导新的保管库、运行保管库运行状况检查或将 _CLAUDE.md 放入其保管库以便所有 Claude 表面共享相同的操作规则时也会触发。每当对话产生值得保留的信息（决策、会见的人、启动的项目、完成的任务、吸取的教训）时，就主动使用。 --- # Obsidian Second Brain > 克劳德将您的黑曜石金库作为一个活生生的操作系统来操作，而不是一个笔记应用程序。 > 一切值得记住的东西都会被保存。每个更新都会传播到它所属的任何地方。 --- ## 快速入门 ### 0. 验证 MCP 是否可用该技能使用 [`mcp-obsidian`](https://github.com/calclavia/mcp-obsidian) MCP 服务器。下面的工具名称（“get_file_contents”、“list_files_in_vault”、“search”、“append_content”、“write_file”）特定于该包。如果您使用不同的 Obsidian MCP 服务器，工具名称可能会有所不同 - 请检查该服务器的文档。 **如果 MCPVault 工具不可用：** 使用标准文件工具（读取、写入、编辑、Glob）直接通过文件系统读取和写入文件。 Vault 是普通的 Markdown 文件——所有操作都可以在没有 MCP 的情况下完成，只是更冗长。告诉用户：>“黑曜石库 MCP 服务器未连接 - 我将直接读取/写入库文件。要启用 MCP 以实现更快的保管库访问，请运行： `claude mcp add obsidian-vault -s user -- npx -y mcp-obsidian \"/path/to/your/vault\"`" ### 1. 首次进入保管库 → 阅读 `_CLAUDE.md` 在保管库中执行任何操作之前，检查保管库根目录中是否存在 `_CLAUDE.md`： ``` get_file_contents("_CLAUDE.md") ````
更新日志: Source: GitHub https://github.com/eugeniughelbur/obsidian-second-brain
目录结构

当前层级: tree/main/
📁 commands/
- 📄 obsidian-adr.md 1.8 KB
- 📄 obsidian-board.md 808 B
- 📄 obsidian-capture.md 739 B
- 📄 obsidian-challenge.md 1.6 KB
- 📄 obsidian-connect.md 1.7 KB
- 📄 obsidian-daily.md 695 B
- 📄 obsidian-decide.md 744 B
- 📄 obsidian-emerge.md 1.9 KB
- 📄 obsidian-find.md 715 B
- 📄 obsidian-graduate.md 1.8 KB
- 📄 obsidian-health.md 2.0 KB
- 📄 obsidian-ingest.md 3.7 KB
- 📄 obsidian-init.md 2.0 KB
- 📄 obsidian-log.md 706 B
- 📄 obsidian-person.md 937 B
- 📄 obsidian-project.md 1015 B
- 📄 obsidian-recap.md 839 B
- 📄 obsidian-review.md 817 B
- 📄 obsidian-save.md 1.2 KB
- 📄 obsidian-task.md 751 B
- 📄 obsidian-world.md 2.5 KB
📁 hooks/
- 📄 obsidian-bg-agent.sh 3.3 KB
📁 references/
- 📄 claude-md-template.md 5.7 KB
- 📄 vault-schema.md 5.3 KB
- 📄 write-rules.md 4.9 KB
📁 scripts/
- 📄 bootstrap_vault.py 13.4 KB
- 📄 setup.sh 5.4 KB
- 📄 vault_health.py 10.4 KB
📄 architecture.md 11.6 KB
📄 install.sh 1009 B
📄 LICENSE 1.0 KB
📄 README.md 17.7 KB
📄 SKILL.md 33.0 KB
SKILL.md

---
name: obsidian-second-brain
description: >
  Operate any Obsidian vault as a living second brain. Use this skill whenever
  the user asks Claude to read, write, update, search, or manage their Obsidian
  vault — including saving notes from conversation, creating daily entries, updating
  kanban boards, logging dev work, managing people notes, capturing decisions,
  tracking deals, or maintaining any vault structure. Also triggers when the user
  wants to bootstrap a new vault from scratch, run a vault health check, or drop
  a _CLAUDE.md into their vault so all Claude surfaces share the same operating rules.
  Use proactively whenever the conversation produces information worth preserving
  (decisions, people met, projects started, tasks completed, lessons learned).
---

# Obsidian Second Brain

> Claude operates your Obsidian vault as a living OS — not a note-taking app.
> Everything worth remembering gets saved. Every update propagates everywhere it belongs.

---

## Quick Start

### 0. Verify MCP is available

This skill uses the [`mcp-obsidian`](https://github.com/calclavia/mcp-obsidian) MCP server. The tool names below (`get_file_contents`, `list_files_in_vault`, `search`, `append_content`, `write_file`) are specific to that package. If you are using a different Obsidian MCP server, tool names may differ — check that server's documentation.

**If MCP vault tools are unavailable:** fall back to reading and writing files directly via the filesystem using standard file tools (Read, Write, Edit, Glob). The vault is plain markdown files — all operations can be done without MCP, just more verbosely. Tell the user:

> "The obsidian-vault MCP server isn't connected — I'll read/write vault files directly instead. To enable MCP for faster vault access, run: `claude mcp add obsidian-vault -s user -- npx -y mcp-obsidian \"/path/to/your/vault\"`"

### 1. First time in a vault → read `_CLAUDE.md`

Before doing anything in a vault, check if `_CLAUDE.md` exists at the vault root:

```
get_file_contents("_CLAUDE.md")
```

If it exists: follow its rules exactly — they override the defaults in this skill. Where `_CLAUDE.md` is silent, fall back to the defaults below.
If it doesn't exist: use the defaults in this skill, then offer to create one.

### 2. First time with a new user → run discovery

```
list_files_in_vault()
```

Scan the structure to understand: folder names, template locations, naming conventions, frontmatter patterns. Then read 2–3 existing notes with `get_file_contents(path)` to calibrate writing style before creating anything new.

### 3. Bootstrap a new vault

If the user has no vault yet, run:
```bash
python scripts/bootstrap_vault.py --path ~/path/to/vault --name "Your Name"
```

Then configure `mcp-obsidian` to point at the new vault path and restart Claude.

This creates a complete production-ready vault structure with all templates, a Home dashboard, kanban boards, and a pre-filled `_CLAUDE.md`. See `scripts/bootstrap_vault.py`.

---

## Core Operating Principles

### Never create in isolation
Every write operation must ask: *where else does this belong?*

| You create/update... | Also update... |
|---|---|
| A new project note | Kanban board (add to Backlog), today's daily note (link it) |
| A task completed | Kanban board (move to Done), project note (log it), daily note |
| A person note | Daily note (mention interaction), People index if it exists |
| A dev log | Daily note (link it), project note (Recent Activity) |
| A deal update | Side Biz / Deals kanban, Dashboard totals |
| A decision made | Project note (Key Decisions), daily note |
| A mention/shoutout | Mentions Log, person's note, daily note |
| Any vault write | `log.md` (append timestamped entry), `index.md` (update if new note created) |

Always propagate. Never create a single orphaned note.

### Maintain `index.md` and `log.md`
Two structural files that keep the vault navigable and auditable:

- **`index.md`** — A catalog of all vault pages organized by category. Claude reads this FIRST when navigating the vault instead of searching — faster and cheaper on tokens. Update it whenever a new note is created or deleted. Format: `- [[Note Name]] — brief description` grouped under folder headings.

- **`log.md`** — An append-only chronological log of every vault operation. Every save, ingest, health check, and structural change gets a timestamped entry. Never delete or rewrite entries — only append. Format: `## [YYYY-MM-DD] action | Description`

### Two-Output Rule
Every interaction that produces insight must generate two outputs:
1. **The answer** — what the user sees in the conversation
2. **A vault update** — the insight filed back into the relevant note(s)

This applies to all thinking tools (`/obsidian-challenge`, `/obsidian-emerge`, `/obsidian-connect`, `/obsidian-graduate`) and any query where Claude synthesizes information from the vault. The vault should get smarter after every interaction, not just when the user explicitly asks to save.

If a challenge analysis reveals a contradiction, file it in the project note's Key Decisions section. If an emerge scan surfaces a pattern, save it to Ideas/. If a connect exercise produces a new concept, create a note for it. The user gets the answer AND the vault compounds.

### Search before creating
Before creating any new note, search for an existing one:
```
search(query="keyword from title")
```
Duplicate notes are vault rot. Merge or update instead of creating new.

### Match the vault's voice
Read existing notes in the same folder before writing new ones.
Match: frontmatter schema, heading style, list formatting, tone, emoji usage (or lack of it).
Never introduce new conventions — extend what's already there.

### Frontmatter is mandatory
Every note gets frontmatter. At minimum:
```yaml
---
date: 2026-03-24
tags:
  - <note-type>
---
```
See `references/vault-schema.md` for full frontmatter specs by note type.

---

## Write Rules

See `references/write-rules.md` for the complete guide. Summary:

- **Links**: Use `[[Note Name]]` for internal links. Always link to people, projects, and jobs mentioned in a note.
- **Dates**: ISO format (`YYYY-MM-DD`) in frontmatter. Human format (`March 24`) in body text.
- **Naming**: `YYYY-MM-DD — Title.md` for dated notes. `Title.md` for evergreen notes. No special characters except `—` (em dash).
- **Status values**: `active` / `planning` / `completed` / `archived` / `on-hold` for projects. `in-progress` / `done` / `waiting` for tasks.
- **Kanban**: Items follow the format `- [ ] 🔴 **Title** · @{YYYY-MM-DD}\n\tDescription [[Link]]`

---

## The `_CLAUDE.md` File

This is the most important concept in this skill.

`_CLAUDE.md` lives at the vault root and persists Claude's operating rules across every session and every surface (Claude Desktop, Claude Code, VS Code, terminal). Without it, Claude has to re-learn your vault conventions every conversation.

**Precedence rule:** `_CLAUDE.md` wins on all vault-specific rules (folder names, naming conventions, frontmatter fields, auto-save behavior, private folders). The defaults in this skill file apply only where `_CLAUDE.md` is silent. Never let skill defaults override an explicit `_CLAUDE.md` rule.

**What it contains:**
- Your vault's folder map and what each folder is for
- Frontmatter schemas for your specific note types
- Naming conventions you use
- What to auto-save vs. what to ask first
- People and projects that need special handling
- Links to key files (boards, dashboard, templates)

To generate a `_CLAUDE.md` for an existing vault, run vault discovery then use the template in `references/claude-md-template.md`.

To install it: write the file to the vault root. Every Claude session that starts in that vault should read it first.

---

## Common Operations

### Save info from conversation
When a conversation produces something vault-worthy:
1. Identify the note type (decision → project note, person met → People/, task → board + Tasks/, etc.)
2. Check if a relevant note already exists
3. Write or update — always frontmatter-first
4. Propagate to boards, daily note, linked notes

### Create today's daily note
```
date = today in YYYY-MM-DD format
path = Daily/{date}.md
```
Read `Templates/Daily Note.md`, fill in the date fields, create the file.
Then scan recent conversation for anything worth logging in today's sections.

### Log a dev session
Read `Templates/Dev Log.md`. Fill: date, project name, what was worked on, problems solved, decisions made, next steps.
Save to `Dev Logs/YYYY-MM-DD — Project Name.md`.
Link from project note's Recent Activity section and today's daily note.

### Update a kanban board
Boards use the `kanban-plugin: board` frontmatter.
Columns are `## Column Name` headers.
Items are `- [ ] **Title** · @{due-date}\n\tDescription [[Links]]`
Completed items move to the `## ✅ Done` column with a strikethrough: `- [x] ~~**Title**~~ ✅ Date`

### Run vault health check
```bash
python scripts/vault_health.py --path ~/path/to/vault
```
Reports: duplicate notes, orphaned files (no incoming links), stale tasks (overdue), empty folders, broken links, notes missing frontmatter.

Proactively suggest running this when the user says the vault feels messy, notes are hard to find, they mention duplicates, or they haven't mentioned a health check in a long time. Offer: *"Want me to run a vault health check?"*

---

## Commands

These slash commands can be used in any Claude surface. Each one is smart — it reads context, searches before writing, and propagates everywhere changes belong.

**Name matching:** If a name argument has a typo or is approximate, search the vault for the closest match, show what was found, and confirm with the user before proceeding. Never silently create a note with a misspelled name.

---

### `/obsidian-save`

**The master save command.** Reads the entire conversation and extracts everything worth preserving.

Steps:
1. Scan the conversation and identify all vault-worthy items: decisions, tasks, people mentioned, projects started, ideas, learnings, deals, mentions/shoutouts
2. Group items by type: people, projects, tasks, decisions, ideas, deals
3. Spawn parallel subagents — one per group — so all note types are handled simultaneously:
   - **People agent**: search for each person, create or update notes, log interactions
   - **Projects agent**: search for each project, create or update notes
   - **Tasks agent**: parse tasks, add to the right kanban columns
   - **Decisions agent**: find relevant project notes, append to Key Decisions sections
   - **Ideas agent**: search Ideas/ for related notes, create or append
4. After all agents complete: update today's daily note with links to everything saved
5. Report back: a clean list of what was saved and where

Do not ask for guidance on where to save things — infer it. Only ask if something is genuinely ambiguous (e.g. a person mentioned with no context on who they are).

---

### `/obsidian-daily`

**Creates or updates today's daily note.**

Steps:
1. Check if `Daily/YYYY-MM-DD.md` exists for today
2. If not: read `Templates/Daily Note.md`, fill in date fields, create the file
3. Scan the current conversation for anything relevant to today: tasks in progress, people mentioned, decisions made, what's being worked on
4. Pre-fill or update the note's sections with that context
5. If the note already exists, inject new content into the right sections rather than overwriting

Return the path of the daily note when done.

---

### `/obsidian-log`

**Logs a work or dev session to the vault.**

Steps:
1. Infer the project from conversation context — search the vault if needed to find the right project note
2. Read `Templates/Dev Log.md` (or `Templates/Work Log.md` if it exists)
3. Fill in: date, project, what was worked on, problems encountered, decisions made, next steps — all inferred from the conversation
4. Save to `Dev Logs/YYYY-MM-DD — Project Name.md`
5. Inject a link into the project note's Recent Activity section
6. Inject a link into today's daily note Work section

---

### `/obsidian-task [description]`

**Adds a task to the vault and the right kanban board.**

Steps:
1. Parse the task from the argument or from recent conversation context if no argument given
2. Infer: priority (🔴/🟡/🟢), due date, linked project, linked person
3. Search for the right kanban board — use `_CLAUDE.md` board list or search `Boards/`
4. Add the task card to the correct column (`📋 This Week` or `📥 Backlog` depending on due date)
5. Create a task note in `Tasks/` if the task is substantial (more than a one-liner)
6. Link the task from the relevant project note and today's daily note

---

### `/obsidian-person [name]`

**Creates or updates a person note.**

Steps:
1. Search the vault for an existing note matching the name (fuzzy — handle typos and partial names)
2. If found: confirm with user, then update with new info from conversation
3. If not found: create `People/Full Name.md` with full frontmatter schema
4. Fill in everything inferable from the conversation: role, company, context, relationship strength, last interaction date
5. Log the interaction in today's daily note
6. If a People index file exists, add or update the entry there

---

### `/obsidian-decide [optional: topic]`

**Extracts and logs decisions from the conversation.**

Steps:
1. Scan the conversation for decisions made — look for conclusions, choices, commitments, direction changes
2. If a topic argument is given, focus on decisions related to that topic
3. Find the relevant project note(s) — search if needed
4. Append each decision to the project note's `## Key Decisions` section with date
5. Log a summary in today's daily note
6. If a decision affects multiple projects, log it in all of them

---

### `/obsidian-capture [optional: idea text]`

**Quick idea capture with zero friction.**

Steps:
1. Take the argument as the idea, or pull the most recent idea/thought from the conversation
2. Search `Ideas/` for a related existing note — if found, append to it
3. If new: create `Ideas/Title.md` with minimal frontmatter (`date`, `tags: [idea]`)
4. Write the idea with any supporting context from the conversation
5. Add a brief mention in today's daily note under an Ideas or Captures section

---

### `/obsidian-find [query]`

**Smart vault search.**

Steps:
1. Run `search(query="...")` with the provided query
2. Also try variations if results are sparse (synonyms, related terms)
3. Return results with context: note title, folder, a relevant excerpt, and what type of note it is
4. If results are ambiguous, group them by type (people, projects, tasks, etc.)
5. Offer to open, update, or link any of the found notes

Do not just return filenames — return enough context for the user to act.

---

### `/obsidian-recap [today|week|month]`

**Summarizes a time period from the vault.**

Steps:
1. Determine the date range from the argument (default: `week` if not specified)
2. List all daily notes in the range with `list_files_in_dir("Daily/")`
3. Spawn parallel subagents — one per daily note — to read and extract key points from each simultaneously
4. Also spawn parallel agents to read dev logs and completed kanban tasks from the same period
5. Synthesize all agent results: what was worked on, decisions made, people interacted with, tasks completed, ideas captured
6. Present as a clean narrative summary — not a raw dump of note content

---

### `/obsidian-review`

**Generates a structured weekly or monthly review note.**

Steps:
1. Ask: weekly or monthly? (or infer from context)
2. Read daily notes and dev logs for the period
3. Read active projects and check for status changes
4. Read completed tasks from kanban boards
5. Draft a review note using `Templates/Review.md` if it exists, otherwise use a standard structure:
   - What I accomplished
   - Key decisions made
   - People I worked with
   - What I learned
   - What to carry forward
6. Save to `Reviews/YYYY-MM-DD — Weekly Review.md` (or Monthly)
7. Link from the last daily note of the period

---

### `/obsidian-board [optional: board name]`

**Shows or updates a kanban board.**

Steps:
1. If a board name is given, search `Boards/` for it (fuzzy match)
2. If no name given, list available boards and ask which one
3. Read and display the current board state: columns, item counts, overdue items (past `@{date}`)
4. Ask if the user wants to make updates — if yes, infer changes from conversation context
5. Move completed items to ✅ Done with strikethrough, add new items in the right column
6. Flag any items that are overdue or have been in the same column for more than a week

---

### `/obsidian-project [name]`

**Creates or updates a project note.**

Steps:
1. Search the vault for an existing project matching the name (fuzzy — handle typos)
2. If found: show what was found, confirm, then update with new info from conversation
3. If not found: create `Projects/Project Name.md` with full frontmatter schema (`date`, `tags: [project]`, `status: active`, `job`)
4. Fill in everything inferable from the conversation: description, goals, key people, current status
5. Add a card to the relevant kanban board in the `📥 Backlog` or `🔨 In Progress` column
6. Link from today's daily note

---

### `/obsidian-health`

**Runs a vault health check and summarizes findings.**

Steps:
1. Run: `python scripts/vault_health.py --path ~/path/to/vault --json`
2. Parse the JSON output and split findings into categories
3. Spawn parallel subagents to handle each category simultaneously:
   - **Links agent**: verify broken links, attempt to resolve them
   - **Duplicates agent**: confirm duplicates are truly the same concept, not just similar names
   - **Frontmatter agent**: identify notes missing required fields by type
   - **Staleness agent**: check overdue tasks and unfilled template syntax
   - **Orphans agent**: check orphaned notes and empty folders
   - **Contradictions agent**: scan Key Decisions and Knowledge/ for claims that conflict or are superseded
   - **Concept gaps agent**: find terms mentioned 3+ times without a dedicated page
   - **Stale claims agent**: flag Knowledge/ notes older than 6 months on fast-moving topics
4. Merge agent results and group by severity:
   - 🔴 Critical: broken links, unfilled template syntax, contradictions
   - 🟡 Warning: duplicates, stale tasks, missing frontmatter, stale claims, concept gaps
   - ⚪ Info: orphaned notes, empty folders
5. Present a clean summary with counts per category
6. For safe fixes (missing frontmatter, obvious duplicates, creating pages for concept gaps), offer to fix them automatically
7. For destructive fixes (archiving, merging, resolving contradictions), list them and ask for explicit confirmation before touching anything
8. Append to `log.md` with severity counts

---

### `/obsidian-init`

**Bootstraps `_CLAUDE.md` for the vault — the operating manual.**

Steps:
1. Call `list_files_in_vault()` to map the full structure
2. Spawn parallel subagents to discover vault context simultaneously:
   - **Dashboard agent**: read `Home.md` or equivalent dashboard
   - **Templates agent**: read all files in `Templates/`
   - **Boards agent**: read all files in `Boards/`
   - **Samples agent**: read one existing note per major folder to capture naming conventions and frontmatter patterns
3. Merge all agent results into a complete picture of the vault
4. Generate a complete `_CLAUDE.md` using the template in `references/claude-md-template.md`, filled with real values from the vault
5. Write it to `_CLAUDE.md` at the vault root via `append_content("_CLAUDE.md", content)`
6. Confirm what was written and tell the user to restart their Claude session so the new file takes effect

If `_CLAUDE.md` already exists: show a diff of what would change and ask before overwriting.

---

### `/obsidian-ingest`

**Ingests a source into the vault — one source touches many pages.**

Steps:
1. Accept a URL, file path, or pasted text as the source
2. Classify the source type before full read: article, PDF, transcript, video, or raw text
3. Read or fetch the full source content
4. Extract: entities (people, companies, tools), concepts, claims, action items, notable quotes
5. Save the raw source to `Knowledge/YYYY-MM-DD — Source Title.md` with full summary and source link
6. Spawn parallel subagents to distribute knowledge across the vault:
   - **People agent**: create or update People/ notes for each person mentioned
   - **Projects agent**: update existing project notes with new findings
   - **Ideas agent**: create or append to Ideas/ for new concepts
   - **Knowledge agent**: create or update Knowledge/ notes for factual claims and frameworks
7. Update `index.md` with all newly created notes
8. Append to `log.md`: `## [YYYY-MM-DD] ingest | Source Title (type) — X created, Y updated`
9. Update today's daily note with an ingest summary

A single ingest should touch 5-15 files. Compile knowledge once, distribute everywhere.

---

## Thinking Tools

These commands use the vault as a thinking partner — not just storage. They surface insights, challenge assumptions, and generate connections that the user cannot see on their own.

---

### `/obsidian-challenge`

**Red-teams your current idea against your own vault history.**

Steps:
1. Identify the user's current claim, plan, or assumption — from the argument or conversation context
2. Extract the key premises behind that position
3. Spawn parallel subagents to search for counter-evidence:
   - **Decisions agent**: search Key Decisions sections for past decisions that contradicted similar thinking
   - **Failures agent**: search dev logs, daily notes, and archives for past failures or lessons related to this topic
   - **Contradictions agent**: search for notes where the user held the opposite position or flagged risks
4. Synthesize a structured "Red Team" analysis:
   - **Your position**: restate the claim
   - **Counter-evidence from your vault**: cite specific notes, dates, and quotes
   - **Blind spots**: what the user might be ignoring based on their own history
   - **Verdict**: consistent with past experience, or does the vault suggest caution?
5. Log the challenge in today's daily note under a Thinking section

Do not be agreeable. The entire point is to pressure-test. Cite specific vault files.

---

### `/obsidian-emerge`

**Surfaces unnamed patterns from recent notes — recurring themes and conclusions you haven't explicitly stated.**

Steps:
1. Determine the date range from the argument (default: last 30 days)
2. Spawn parallel subagents to scan vault content:
   - **Daily notes agent**: extract recurring topics, complaints, observations, energy patterns
   - **Dev logs agent**: extract repeated blockers, tools, architectural patterns
   - **Decisions agent**: look for directional trends across project notes
   - **Ideas agent**: look for thematic clusters in Ideas/ notes
3. Identify:
   - **Recurring themes**: topics that appeared 3+ times without being named as a priority
   - **Emotional patterns**: what energizes vs. drains (based on language)
   - **Unnamed conclusions**: things the notes imply but never state outright
   - **Emerging directions**: where the vault suggests the user is heading
4. Present a "Pattern Report" — each pattern with evidence (cited notes), interpretation, and suggested action
5. Offer to save the report to `Ideas/` or a relevant project note
6. Log a summary in today's daily note

The goal is insight the user cannot see themselves. Surface what they haven't named yet.

---

### `/obsidian-connect [topic A] [topic B]`

**Bridges two unrelated domains using the vault's link graph to spark new ideas.**

Steps:
1. Parse two domains from arguments (e.g., `/obsidian-connect "distributed systems" "cooking"`)
2. For each domain, search the vault: find all related notes, map backlinks and outgoing links to build a local cluster
3. Find the bridge:
   - Shared links, tags, or people between the two clusters
   - If a direct path exists in the link graph, trace it and explain each hop
   - If no direct path, find the closest semantic overlap
4. Generate creative connections:
   - **Structural analogy**: how a pattern in A maps to B
   - **Transfer opportunities**: what works in A that could apply to B
   - **Collision ideas**: new concepts that only exist at the intersection
5. Present 3-5 specific, actionable connections — not vague analogies but concrete ideas
6. Offer to save the best connections to `Ideas/` with links to both source domains
7. Log the connection exercise in today's daily note

The value is in unexpected links. If the connection is obvious, dig deeper.

---

### `/obsidian-graduate`

**Promotes an idea fragment into a full project spec with tasks, board entries, and structure.**

Steps:
1. If argument given: search `Ideas/`, daily notes, and captures for a matching idea (fuzzy)
2. If no argument: list recent ideas (last 14 days) and ask the user to pick one
3. Read the full idea note and any linked notes for context
4. Research the vault for related content: overlapping projects, related people, past decisions, similar ideas explored before
5. Generate a full project spec:
   - **Project note** in `Projects/` with complete frontmatter (status: planning, linked idea)
   - **Goals**: 3-5 concrete outcomes
   - **Key tasks**: broken into phases with priorities
   - **Open questions**: what still needs answering
   - **Related notes**: links to everything relevant
6. Add cards to the relevant kanban board
7. Update the original idea note: add `status: graduated` and link to the new project
8. Link the new project from today's daily note

The idea doesn't die — it evolves. The original note stays as the origin story.

---

## Context Engine

### `/obsidian-world`

**Loads your identity, values, priorities, and current state in one shot — with progressive context levels.**

Uses token budgets to avoid loading the entire vault. Start light, go deeper only as needed.

Steps:
1. **L0 — Identity (~200 tokens)**: read `SOUL.md`/`About Me.md` and `CORE_VALUES.md`/`Values.md`
2. **L1 — Navigation (~1-2K tokens)**: read `index.md` (vault catalog) and `log.md` (last 10 entries)
3. **L2 — Current State (~2-5K tokens)**: read `Home.md`/`Dashboard.md`, today's daily note, last 3 daily notes, active kanban boards, previous session digests
4. **L3 — Deep Context (on demand, ~5-20K tokens)**: only load if needed — active project notes, full Knowledge/ articles, recently mentioned people

Present a brief status after L0-L2 (do NOT load L3 unless needed):
- **Who I am to you**: persona and communication style
- **Your current priorities**: top 3-5 active threads (from index.md + boards)
- **Open threads from last session**: anything unfinished (from log.md + daily notes)
- **Overdue / needs attention**: stale tasks or projects
- **Today so far**: what's already logged

Keep output concise — this is a boot-up sequence, not a report.

If identity files don't exist, offer to create them by asking 5-7 quick questions about the user's role, values, and preferences.
If `index.md` doesn't exist, offer to run `/obsidian-init` to generate it.

---

### `/obsidian-adr`

**Generates a decision record when the vault structure changes.**

Steps:
1. Identify the structural decision from the argument or conversation context
2. Create `Knowledge/ADR-YYYY-MM-DD — Title.md` with:
   - **Decision**: one-line summary
   - **Context**: what prompted this
   - **Options Considered**: 2-3 alternatives evaluated
   - **Rationale**: why this option won
   - **Consequences**: what changed — notes created, moved, or restructured
   - **Related**: links to affected notes
3. Update the relevant project note's Key Decisions section with a link to the ADR
4. Update `index.md` and append to `log.md`
5. Link from today's daily note

The vault knows why it's structured the way it is. When a future session asks "why?" — the ADR has the answer.

Can also be triggered automatically by `/obsidian-graduate`, `/obsidian-health` structural fixes, or folder reorganizations. In those cases, offer to create an ADR — don't force it.

---

## Scheduled Agents

Four autonomous agents designed to run on a schedule with no user intervention. Each runs a focused vault operation at a set time, then stops. They are conservative by default — they never delete or archive anything autonomously, and they never ask the user questions mid-run.

Set these up once using the `/schedule` skill in Claude Code.

---

### `obsidian-morning` — Daily at 8:00 AM

**Creates today's daily note and surfaces what needs attention.**

Prompt to schedule:
```
Read _CLAUDE.md. Create today's daily note in Daily/ using the Daily Note template.
Pull in any tasks from kanban boards that are due today or overdue.
List any projects with status active that have no recent activity in the last 7 days.
Do not ask questions — infer everything from the vault. Save and stop.
```

Setup:
```
/schedule obsidian-morning — daily 8:00 AM
```

---

### `obsidian-nightly` — Daily at 10:00 PM

**Closes out the day — saves anything unsaved, updates the daily note.**

Prompt to schedule:
```
Read _CLAUDE.md. Read today's daily note in Daily/.
Scan the current session context for anything worth saving that hasn't been logged yet:
decisions, tasks completed, people mentioned, ideas discussed.
Append a ## End of Day section to today's daily note with a 3-5 bullet summary of the day.
Move any completed kanban tasks to the Done column if not already done.
Do not ask questions. Save and stop.
```

Setup:
```
/schedule obsidian-nightly — daily 10:00 PM
```

---

### `obsidian-weekly` — Every Friday at 6:00 PM

**Generates a weekly review note from the vault.**

Prompt to schedule:
```
Read _CLAUDE.md. Run /obsidian-recap week to gather this week's activity.
Generate a weekly review note using the Review template (or standard structure if none exists).
Save to Reviews/YYYY-MM-DD — Weekly Review.md.
Link it from this week's last daily note.
Do not ask questions. Save and stop.
```

Setup:
```
/schedule obsidian-weekly — every Friday 6:00 PM
```

---

### `obsidian-health-check` — Every Sunday at 9:00 PM

**Runs the vault health check and logs a report.**

Prompt to schedule:
```
Read _CLAUDE.md. Run: python scripts/vault_health.py --path ~/path/to/vault --json
Parse the output. Write a health report to Knowledge/Vault Health YYYY-MM-DD.md
summarizing findings by severity (critical, warning, info).
Do not fix anything autonomously — only report.
Do not ask questions. Save and stop.
```

Setup:
```
/schedule obsidian-health-check — every Sunday 9:00 PM
```

---

### Setting up scheduled agents

All four can be configured at once:

```
/schedule
```

Then tell Claude which agents you want and at what times. Claude Code's scheduling system will handle the rest — agents run autonomously in the background on the defined cron schedule.

To list or remove scheduled agents:
```
/schedule list
/schedule remove obsidian-morning
```

---

## Background Agent (PostCompact Hook)

A background agent that fires automatically whenever Claude compacts the conversation context. It reads the session summary and propagates everything worth preserving to the vault — no user action required.

**What it does:** After each compaction, a headless `claude -p` subprocess wakes up, reads `_CLAUDE.md`, scans the summary for vault-worthy items (people, projects, decisions, tasks, dev work, ideas), and writes updates everywhere they belong — people notes, project notes, dev logs, kanban boards, and today's daily note.

**How it works:**
1. `PostCompact` hook fires in Claude Code after context compaction
2. Hook script reads the JSON summary from stdin
3. Spawns a headless `claude --dangerously-skip-permissions -p` subprocess in the vault directory
4. Agent runs silently, propagates updates, and exits — user sees nothing

**Setup:**

1. Make the hook script executable (one-time):
   ```bash
   chmod +x ~/.claude/skills/obsidian-second-brain/hooks/obsidian-bg-agent.sh
   ```

2. Set `OBSIDIAN_VAULT_PATH` in `~/.claude/settings.json`:
   ```json
   {
     "env": {
       "OBSIDIAN_VAULT_PATH": "/path/to/your/vault"
     }
   }
   ```

3. Add the `PostCompact` hook to `~/.claude/settings.json`:
   ```json
   {
     "hooks": {
       "PostCompact": [
         {
           "matcher": "",
           "hooks": [
             {
               "type": "command",
               "command": "/Users/you/.claude/skills/obsidian-second-brain/hooks/obsidian-bg-agent.sh",
               "timeout": 10,
               "async": true
             }
           ]
         }
       ]
     }
   }
   ```

**Debugging:** The agent logs to `/tmp/obsidian-bg-agent.log`. Check there if updates aren't appearing.

**Safety:** The agent never deletes, archives, or merges anything. It only adds or updates. If the summary has nothing vault-worthy, it exits without touching the vault.

---

## Reference Files

- `references/vault-schema.md` — Complete folder structure + frontmatter specs for all note types
- `references/write-rules.md` — Detailed writing, linking, and formatting rules
- `references/claude-md-template.md` — Template for generating a vault's `_CLAUDE.md`

## Scripts

- `scripts/setup.sh` — One-command installer (wires hook + env var + MCP)
- `scripts/bootstrap_vault.py` — Bootstrap a complete vault from scratch
- `scripts/vault_health.py` — Audit a vault for structural issues
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