A process for finding ideas repeated across several project knowledge folders and combining them into a general engineering note.

Use it to discover shared patterns, draft a synthesized note with links to its source notes, and publish it to the global Engineering folder after approval.

It turns project-specific lessons into reusable guidance instead of leaving similar insights scattered across separate notes.

compound — Skill for Claude Code by thoreinstein/obsidian-rag

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.

Any agent

npx skills add thoreinstein/obsidian-rag --skill compound

Clone the repo

git clone --depth 1 https://github.com/thoreinstein/obsidian-rag

Made for: Claude Code.

Or install obsidian-rag, the plugin that ships this one along with the rest of its 13 skills, 2 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/thoreinstein/obsidian-rag/compound/github.svg)](https://agentmods.dev/skills/thoreinstein/obsidian-rag/compound)

Your own site

<a href="https://agentmods.dev/skills/thoreinstein/obsidian-rag/compound"><img src="https://agentmods.dev/badge/skills/thoreinstein/obsidian-rag/compound/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/thoreinstein/obsidian-rag/compound"><img src="https://agentmods.dev/badge/skills/thoreinstein/obsidian-rag/compound.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 413 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 100% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00042	$0.00413
Opus 5.5	$0.00017	$0.00165
Sonnet 5.5	$0.00008	$0.00083
Haiku 4.5	$0.00004	$0.00041

Measured 1mo ago against content hash d5e3b1e05af0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

compound 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 1mo 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.

Origin

This is a copy

100% identical to compound — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/compound/SKILL.md · 46 lines

What it actually says

Compound Knowledge Promotion

Identify knowledge that has crystallized across multiple projects and promote it to a global Engineering/ note.

Workflow

Scan project knowledge dirs — Call obsidian_list_notes with subfolder: "working". Filter results to paths matching working/*/knowledge/*.md.
Semantic clustering — For each knowledge note path, call obsidian_rag_query with the note filename (without extension) as query, limit: 8. Track which notes appear in results from 2+ different projects — these are candidates.
Read candidates — Call obsidian_read_note on shortlisted files. Look for shared definitions, patterns, or insights worth generalizing.
Draft global note — Compose a new Engineering/<ConceptName>.md with:
- Frontmatter: type: concept, created: <today>
- Synthesized body (not copy-paste — rewrite for clarity)
- ## Source Notes section with [[wikilinks]] back to originating notes
Show draft to user — Present the proposed note content and path before creating. Ask for confirmation.
Create on approval — Call obsidian_create_note with the approved content.
Report cross-links — List which project knowledge notes should now add [[ConceptName]] to avoid re-discovering this knowledge next time.

Arguments

Optional topic hint: /compound authentication patterns

Tips

If obsidian_rag_query returns no results, suggest running /index first
If no notes appear in 2+ projects, report that and suggest manual promotion

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.

1mo ago First seen · 46 lines · 42 tokens per session scan A d5e3b1e05af0

Subscribe to this mod's changes

compound is a skill published in the GitHub repository thoreinstein/obsidian-rag (2 stars, last pushed 2mo ago), licensed MIT. It adds 42 tokens to every session and 413 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to compound, differing in 0 lines, and is treated as a copy.

Claude Code Memory and context claude-ai claude-code-plugin claude-skills obsidian obsidian-md

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