claude-obsidian is a local knowledge system that turns source material into linked, source-cited Markdown notes in an Obsidian vault for use with Claude Code and compatible agent hosts. People use it to capture research, retrieve evidence-grounded answers, maintain knowledge, and map connections while retaining ownership of their files. The catalogue entries provide workflows and extensions for operating this knowledge system.
Borrowing it
Nothing to install: this file belongs to AgriciDaniel/claude-obsidian. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/AgriciDaniel/claude-obsidian/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/AgriciDaniel/claude-obsidianWrote 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.
[](https://agentmods.dev/instructions/agricidaniel/claude-obsidian/copilot-instructions)<a href="https://agentmods.dev/instructions/agricidaniel/claude-obsidian/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/agricidaniel/claude-obsidian/copilot-instructions/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.
<a href="https://agentmods.dev/instructions/agricidaniel/claude-obsidian/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/agricidaniel/claude-obsidian/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00186 | $0.00186 |
| Opus 5.5 | $0.00074 | $0.00074 |
| Sonnet 5.5 | $0.00037 | $0.00037 |
| Haiku 4.5 | $0.00019 | $0.00019 |
Grade A, and why
claude-obsidian copilot-instructions.md 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.
What it actually says
claude-obsidian Copilot instructions
Read AGENTS.md before proposing changes. The repository is an Agent Skills
package, Claude Code adapter, standard-library Python core, and deterministic
vault template—not the default live user vault.
When editing:
- Keep skill frontmatter to exactly
nameand single-linedescription. - Use Obsidian Flavored Markdown, flat YAML properties, and
YYYY-MM-DDdates. - Never modify existing raw source payloads.
- Route all logical knowledge mutations through one inspected operation bundle.
- Keep workers draft-only and lint/query read-only.
- Preserve vault path containment and product/vault separation.
- Add hermetic regression tests for behavior changes and run
make test. - Do not add secrets, private paths, unsupported capability claims, or duplicate command wrappers.
Public canonical: https://github.com/AgriciDaniel/claude-obsidian
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 · 20 lines · 186 tokens per session scan A 35abbef26c54
claude-obsidian copilot-instructions.md is an instructions file published in the GitHub repository AgriciDaniel/claude-obsidian (15,675 stars, last pushed 3d ago), licensed MIT. It adds 186 tokens to every session, about $0.0007 per session on Opus 5.5. 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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