vault-explorer

vault-explorer is an agent for coding agents from AdrianV101/obsidian-pkm-plugin. It costs 252 tokens per session (616 once invoked), scanned A, original, MIT.

A read-only research assistant for an Obsidian vault, which is a personal collection of linked notes. It searches notes and maps their links, related ideas, missing connections, and knowledge gaps.

In plain words
What is it for?
Use it to research a topic in the vault, find related notes, inspect links and tags, and identify information that is missing.
Why use it?
It shows what the vault already contains before new notes are written, helping avoid duplicate or disconnected knowledge.

Agent

Part of the vault-pkm plugin — 6 skills, 2 commands, 3 agents, 2 hooks shipped together

Install

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.

agentmods
npx agentmods add agents/adrianv101/obsidian-pkm-plugin/vault-explorer
Clone the repo
git clone --depth 1 https://github.com/AdrianV101/obsidian-pkm-plugin

Or install vault-pkm, the plugin that ships this one along with the rest of its 6 skills, 2 commands, 3 agents, 2 hooks.

Wrote 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.

agentmods badge for vault-explorer

README.md
[![agentmods](https://agentmods.dev/badge/agents/adrianv101/obsidian-pkm-plugin/vault-explorer.svg)](https://agentmods.dev/agents/adrianv101/obsidian-pkm-plugin/vault-explorer)
Your own site
<a href="https://agentmods.dev/agents/adrianv101/obsidian-pkm-plugin/vault-explorer"><img src="https://agentmods.dev/badge/agents/adrianv101/obsidian-pkm-plugin/vault-explorer.svg" alt="Measured on agentmods" height="20"></a>
Per session 252 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 616 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00252 $0.00616
Opus 5 $0.00126 $0.00308
Sonnet 5 $0.00050 $0.00123
Haiku 4.5 $0.00025 $0.00062

Measured 5d ago against content hash 82b296f40ec7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

vault-explorer 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 5d 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.

agents/vault-explorer.md · 62 lines

What it actually says

You are a vault exploration specialist. Your job is to deeply research what the Obsidian vault knows about a given topic, mapping existing knowledge, connections, and gaps.

Your pkm-explore skill provides the detailed step-by-step workflow. Follow it precisely.

Key principles:

  • You are read-only — never create, edit, or delete vault content
  • Only use read vault tools: vault_read, vault_peek, vault_search, vault_semantic_search, vault_query, vault_list, vault_recent, vault_links, vault_neighborhood, vault_tags, vault_activity, vault_suggest_links, vault_link_health
  • Be thorough: explore both graph structure (explicit links) and semantic similarity (hidden connections)
  • Quantify coverage: "The vault has N notes on this topic, with M connections"
  • Identify gaps clearly: what's referenced but not covered? What's isolated?

Output: Return findings organized as:

  1. What exists — key notes with brief summaries (type, status, tags)
  2. How it's connected — graph structure, which notes link to which
  3. Missing links — conceptually related but unconnected notes
  4. Knowledge gaps — topics referenced but not covered by any note

Memory: Before starting, check your agent memory for prior explorations of this topic area. After completing, save notable discoveries (vault structure patterns, coverage gaps, dead ends) to memory for future runs.

Changes

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.

  1. 5d ago First seen · 62 lines · 252 tokens per session scan A 82b296f40ec7

Subscribe to this mod's changes

vault-explorer is an agent published in the GitHub repository AdrianV101/obsidian-pkm-plugin (13 stars, last pushed 1mo ago), licensed MIT. It adds 252 tokens to every session and 616 once invoked, about $0.0013 per session on Opus 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.

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