arnesto: Skill for Claude Code

.agents/skills/wiki-query/SKILL.md

wiki-query is a skill for Claude Code, Codex from saski/arnesto. It costs 123 tokens per session (1,767 once invoked), scanned A, original, Unlicense.

A search tool for answering questions from a personal Obsidian wiki, a collection of linked notes. It finds related notes and combines their contents into an answer with references.

In plain words
What is it for?
Use it to find facts across the wiki, answer questions about what you know, and combine information from several notes.
Why use it?
It avoids searching through notes one by one or relying on memory of where information was stored. It helps keep answers tied to the knowledge already in the wiki.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is saski/arnesto's own configuration. It tells Claude Code and Codex how to work on arnesto itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything arnesto configures →

Reuse

Borrowing it

Nothing to install: this file belongs to saski/arnesto. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/saski/arnesto/main/.agents/skills/wiki-query/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/saski/arnesto

Made for: Claude Code, Codex.

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 wiki-query

README.md
[![agentmods](https://agentmods.dev/badge/skills/saski/arnesto/wiki-query.svg)](https://agentmods.dev/skills/saski/arnesto/wiki-query)
Your own site
<a href="https://agentmods.dev/skills/saski/arnesto/wiki-query"><img src="https://agentmods.dev/badge/skills/saski/arnesto/wiki-query.svg" alt="Measured on agentmods" height="20"></a>
Per session 123 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,767 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00123 $0.01767
Opus 5 $0.00062 $0.00883
Sonnet 5 $0.00025 $0.00353
Haiku 4.5 $0.00012 $0.00177

Measured 3d ago against content hash c831e3643ebd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

wiki-query 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 3d 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/skills/wiki-query/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Wiki Query — Knowledge Retrieval

You are answering questions against a compiled Obsidian wiki, not raw source documents. The wiki contains pre-synthesized, cross-referenced knowledge.

Before You Start

  1. Read ~/.obsidian-wiki/config to get OBSIDIAN_VAULT_PATH (works from any project). Fall back to .env if you're inside the obsidian-wiki repo.
  2. If $OBSIDIAN_VAULT_PATH/hot.md exists, read it first — it gives you instant context on recent activity. If the user's question is about something ingested recently, hot.md may answer it before you even open index.md.
  3. Read $OBSIDIAN_VAULT_PATH/index.md to understand the wiki's scope and structure

Visibility Filter (optional)

By default, all pages are returned regardless of visibility tags. This preserves existing behavior — nothing changes unless the user asks for it.

If the user's query includes phrases like "public only", "user-facing", "no internal content", "as a user would see it", or "exclude internal", activate filtered mode:

  • Build a blocked tag set: {visibility/internal, visibility/pii}
  • In the Index Pass (Step 2), skip any candidate whose frontmatter tags contain a blocked tag
  • In Section/Full Read passes (Steps 3–4), do not read or cite any blocked page
  • Synthesize the answer only from allowed pages — do not mention that excluded pages exist

Pages with no visibility/ tag, or tagged visibility/public, are always included.

In filtered mode, note the filter in the Step 6 log entry: mode=filtered.

Retrieval Protocol

Follow the Retrieval Primitives table in llm-wiki/SKILL.md. Reading is the dominant cost of this skill — use the cheapest primitive that answers the question and escalate only when it can't. Never jump straight to full-page reads.

Step 1: Understand the Question

Classify the query type:

  • Factual lookup — "What is X?" → Find the relevant page(s)
  • Relationship query — "How does X relate to Y?" → Find both pages and their cross-references
  • Synthesis query — "What's the current thinking on X?" → Find all pages that touch X, synthesize
  • Gap query — "What don't I know about X?" → Find what's missing, check open questions sections

Read the full file on GitHub · 136 lines

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. 3d ago First seen · 136 lines · 123 tokens per session scan A c831e3643ebd

Subscribe to this mod's changes

wiki-query is a skill published in the GitHub repository saski/arnesto (5 stars, last pushed today), licensed Unlicense. It adds 123 tokens to every session and 1,767 once invoked, about $0.0006 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 2026-09-03.

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