A set of instructions for connecting Claude Code to Notion, a workspace for pages, databases, comments, and other shared information. It covers both the official connector and an optional command-line tool for specific tasks.

Use it to search and update Notion pages, work with databases and views, add comments or blocks, upload files, and run Notion tasks from scripts or continuous-integration jobs.

It helps choose the right way to access Notion and checks Notion's formatting and database rules before changing content. This reduces errors caused by unsupported formatting or mismatched field names.

notion — Skill for Claude Code by coroboros/agent-skills

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 coroboros/agent-skills --skill notion

Clone the repo

git clone --depth 1 https://github.com/coroboros/agent-skills

Made for: Claude Code.

Its marketplace also offers this one on its own, as the plugin productivity-skills — /plugin install productivity-skills after adding the marketplace above.

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/coroboros/agent-skills/notion/github.svg)](https://agentmods.dev/skills/coroboros/agent-skills/notion)

Your own site

<a href="https://agentmods.dev/skills/coroboros/agent-skills/notion"><img src="https://agentmods.dev/badge/skills/coroboros/agent-skills/notion/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/coroboros/agent-skills/notion"><img src="https://agentmods.dev/badge/skills/coroboros/agent-skills/notion.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,747 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00043	$0.01747
Opus 5.5	$0.00017	$0.00699
Sonnet 5.5	$0.00009	$0.00349
Haiku 4.5	$0.00004	$0.00175

Measured 1mo ago against content hash b8e8c5937ede, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

notion scanned grade B with 1 finding 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

Never echo a Notion API token (prefix `ntn_…` for `ntn` OAuth or `secret_…` for integration tokens) in tool output, logs, commits, or PR bodies. The token belongs in `.envrc` (gitignored, `chmod 600`) or `~/.config/ntn/`

skills/notion/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.

Notion

Prefer the official Notion MCP connector when it exposes the requested operation. Notion supports Codex and other clients as well as Claude Code; route by actual tools, not client identity. Use the optional ntn CLI for supported capabilities missing from the connector or a requested script. Run the Pre-flight, preserve the user's write scope and verify resulting content.

Pre-flight (do once per session before any content write)

MCP path only — on the ntn CLI branch, skip this and validate shapes against the REST API responses instead.

Read the MCP resource notion://docs/enhanced-markdown-spec — the canonical reference for Notion-flavored Markdown used by notion-create-pages content and notion-update-page update_content / replace_content. Don't guess Markdown syntax — Notion's flavor diverges from CommonMark in non-obvious ways.
For database row CRUD — notion-fetch the target data source first. The fetch returns the current SQLite-style schema. Property names are case-sensitive; expanded keys apply (date:<col>:start | :end | :is_datetime, place:<col>:name | address | latitude | longitude | google_place_id, checkbox __YES__ / __NO__, properties literally named id or url → prefix userDefined:).

Routing — MCP vs CLI

Default — MCP

Inspect the active tool descriptions. Depending on the connector, supported operations can include:

SQL DDL for schemas — notion-create-database / notion-update-data-source
View DSL — notion-create-view / notion-update-view
Block-level comments — selection_with_ellipsis against rendered Markdown
Batch up to 100 rows in one notion-create-pages call
Semantic search across connected sources (Slack, GDrive, GitHub, Jira, MS Teams, Sharepoint, OneDrive, Linear)

Use the `ntn` CLI when its capabilities fit

File upload to Notion — ntn files create when the active MCP lacks upload support.
Notion Workers / serverless — ntn workers … when needed tools are absent from the MCP.
Headless / CI / non-interactive — use the supported CLI authentication and output flags for the requested script. A CI job need not have a Claude session; absence of Claude does not imply absence of MCP elsewhere.
Raw API discovery — ntn api ls enumerates every endpoint. Useful when an action isn't covered by any high-level MCP tool.
Shell piping — ntn pages get <id> --json | jq … for ad-hoc data wrangling.

Read the full file on GitHub · 81 lines

Files

What ships with it

1 file 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.

evals/evals.json 3.5 KB

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 Changed · -4 lines · -182 tokens per session b8e8c5937ede
2mo ago First seen · 85 lines · 225 tokens per session scan B 20359582839b

Subscribe to this mod's changes

notion is a skill published in the GitHub repository coroboros/agent-skills (4 stars, last pushed 3d ago), licensed MIT. It adds 43 tokens to every session and 1,747 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Claude Code Productivity agent-skills ai-agents anthropic automation claude

notion

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Asks for rootmediumPrivilege escalation

How it starts

Notion

Pre-flight (do once per session before any content write)

Routing — MCP vs CLI

Default — MCP

Use the `ntn` CLI when its capabilities fit

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

apple-notes

keybindings-help

outlook_calendar

granola

notifications

resume-builder

notion

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Asks for rootmediumPrivilege escalation

How it starts

Notion

Pre-flight (do once per session before any content write)

Routing — MCP vs CLI

Default — MCP

Use the ntn CLI when its capabilities fit

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

apple-notes

keybindings-help

outlook_calendar

granola

notifications

resume-builder

Use the `ntn` CLI when its capabilities fit