prismer-obsidian

prismer-obsidian is a skill for Claude Code, Codex from Prismer-AI/PrismerCloud. It costs 22 tokens per session (994 once invoked), scanned A, original, MIT.

A file-based tool for working with an Obsidian vault, a folder of linked Markdown notes.

In plain words
What is it for?
It is for reading, finding, creating, appending to, and editing notes, including adding links between them.
Why use it?
It makes it easier to search and edit a personal knowledge base while keeping the notes as ordinary files.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for reading, finding, creating, appending to, and editing notes, including adding links between them.

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Install with agentmods
npx agentmods add skills/prismer-ai/prismercloud/prismer-obsidian
About the project

Prismer Cloud is an infrastructure layer for AI agents that provides shared learning, compressed context, persistent memory, collaboration, messaging, tasks, identity, and workspaces. It is for agents and the people building or using long-running agent systems that need information and outcomes to persist across sessions. The catalogue entries provide skills, hooks, agents, instructions, and a plugin for using Prismer Cloud.

Prismer-AI/PrismerCloud · 1,386 stars · on GitHub · prismer.cloud

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 Prismer-AI/PrismerCloud --skill prismer-obsidian
Clone the repo
git clone --depth 1 https://github.com/Prismer-AI/PrismerCloud

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 prismer-obsidian

README.md
[![agentmods](https://agentmods.dev/badge/skills/prismer-ai/prismercloud/prismer-obsidian/github.svg)](https://agentmods.dev/skills/prismer-ai/prismercloud/prismer-obsidian)
Your own site
<a href="https://agentmods.dev/skills/prismer-ai/prismercloud/prismer-obsidian"><img src="https://agentmods.dev/badge/skills/prismer-ai/prismercloud/prismer-obsidian/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.

agentmods 80×15 button for prismer-obsidian

Your own site · 80×15
<a href="https://agentmods.dev/skills/prismer-ai/prismercloud/prismer-obsidian"><img src="https://agentmods.dev/badge/skills/prismer-ai/prismercloud/prismer-obsidian.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 994 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 $0.00022 $0.00994
Opus 5.5 $0.00009 $0.00398
Sonnet 5.5 $0.00004 $0.00199
Haiku 4.5 $0.00002 $0.00099

Measured 17d ago against content hash 72a74d80e304, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

prismer-obsidian 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 17d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/write_note.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

sdk/cloud/catalog/skills/prismer-obsidian/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Obsidian Vault

Use this skill for filesystem-first Obsidian vault work: reading notes, listing notes, searching note files, creating notes, appending content, and adding wikilinks.

Vault path

Use a known or resolved vault path before calling file tools.

Require an explicitly configured OBSIDIAN_VAULT_PATH or a vault path supplied by the user. If absent, report missing configuration; do not create or write to a fallback vault.

File tools do not expand shell variables. Do not pass paths containing $OBSIDIAN_VAULT_PATH to read_file, write_file, patch, or search_files; resolve the vault path first and pass a concrete absolute path. Vault paths may contain spaces, which is another reason to prefer file tools over shell commands.

If the vault path is unknown, terminal is acceptable for resolving OBSIDIAN_VAULT_PATH or validating the user-supplied path. Once the path is known, switch back to file tools.

Read a note

Use read_file with the resolved absolute path to the note. Prefer this over cat because it provides line numbers and pagination.

List notes

Use search_files with target: "files" and the resolved vault path. Prefer this over find or ls.

  • To list all markdown notes, use pattern: "*.md" under the vault path.
  • To list a subfolder, search under that subfolder's absolute path.

Use search_files for both filename and content searches. Prefer this over grep, find, or ls.

  • For filenames, use search_files with target: "files" and a filename pattern.
  • For note contents, use search_files with target: "content", the content regex as pattern, and file_glob: "*.md" when you want to restrict matches to markdown notes.

Create a note

Use scripts/write_note.py with an explicitly authorized vault, relative Markdown path, expected revision and content on stdin. This applies the path, lock, revision and atomic-write checks; do not bypass them with direct writes.

Append to a note

Prefer a native file-tool workflow when it is not awkward:

Read the full file on GitHub · 81 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 17d ago First seen · 81 lines · 22 tokens per session scan A 72a74d80e304

Subscribe to this mod's changes

prismer-obsidian is a skill published in the GitHub repository Prismer-AI/PrismerCloud (1,386 stars, last pushed 2d ago), licensed MIT. It adds 22 tokens to every session and 994 once invoked, about $0.0001 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 2026-09-29.