sync

sync is a skill for Claude Code from makenotion/notion-cookbook. It costs 29 tokens per session (4,327 once invoked), scanned A, original, MIT.

A guided builder for creating a data-sync capability for a Notion Worker. It asks how data should be copied and tracked, then generates code for the chosen source and sync design.

In plain words
What is it for?
Use it to plan and generate sync code for data such as Jira issues or Stripe customers, including API pagination, change tracking, and the method used to remember the last synchronized record.
Why use it?
It helps resolve decisions such as full replacement versus incremental updates, pagination, and cursor tracking before implementation begins.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to plan and generate sync code for data such as Jira issues or Stripe customers, including API pagination, change tracking, and the method used to remember the last synchronized record.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/makenotion/notion-cookbook/sync
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 makenotion/notion-cookbook --skill sync
Clone the repo
git clone --depth 1 https://github.com/makenotion/notion-cookbook

Made for: Claude Code.

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 sync

README.md
[![agentmods](https://agentmods.dev/badge/skills/makenotion/notion-cookbook/sync/github.svg)](https://agentmods.dev/skills/makenotion/notion-cookbook/sync)
Your own site
<a href="https://agentmods.dev/skills/makenotion/notion-cookbook/sync"><img src="https://agentmods.dev/badge/skills/makenotion/notion-cookbook/sync/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 sync

Your own site · 80×15
<a href="https://agentmods.dev/skills/makenotion/notion-cookbook/sync"><img src="https://agentmods.dev/badge/skills/makenotion/notion-cookbook/sync.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,327 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 8 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 244
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Privilege Escalation · line 318
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Agent Snooping · line 15
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 115
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Excessive Agency · line 73
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Excessive Agency · line 123
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Agent Snooping · line 194
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium MCP Rug Pull · line 357
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 $0.00029 $0.04327
Opus 5 $0.00015 $0.02164
Sonnet 5 $0.00006 $0.00865
Haiku 4.5 $0.00003 $0.00433

Measured 9d ago against content hash 2d23c40d5208, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sync 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 9d 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

Copies of this mod

1 near-identical copy found in the catalogue:

  • sync — 89% identical, 138 lines differ
workers/agents/skills/sync/SKILL.md · 423 lines

How it starts

The opening of the file, as written. The whole thing — 423 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Instructions

You are helping the user create a new sync capability for their Notion Worker. Walk through each step, asking questions and making recommendations. Generate working code at the end.

Before you begin, read these reference files to understand sync patterns:

  • .agents/skills/sync-guide/SKILL.md — concepts, modes, patterns, common mistakes
  • .agents/skills/sync-guide/api-pagination-patterns.md — real-world API strategies
  • .agents/skills/sync-guide/examples/ — working code templates

Also read the current src/index.ts to understand what already exists.

Step 1: Understand the Data Source

Ask the user:

  • What data are you syncing? (e.g., "Jira issues", "Stripe customers", "ServiceNow tickets")

If they name a well-known API, look up its pagination mechanism and change-tracking capabilities (does it have updated_at? an events endpoint? cursor-based pagination?).

Step 2: Determine the Right Architecture

Based on what you know about the data source, recommend one of two architectures:

Simple replace sync

Use when: the source is small (<1k records) OR the API has no change tracking (no updated_at, no event feed).

One sync, replace mode. Re-fetches everything each cycle. The runtime auto-deletes records that disappear from the source. Simplest option.

Backfill + delta pair

Use when: the API supports change tracking (updated_at, events, changelog) — this covers most enterprise APIs (Salesforce, Stripe, Linear, GitHub, HubSpot).

Two separate syncs writing to the same database:

  • Backfill sync (replace mode, schedule: "manual"): Paginates the full dataset. Triggered manually via CLI when a full re-import is needed. Replace mode's mark-and-sweep automatically cleans up records deleted from the source.
  • Delta sync (incremental mode, schedule: "5m" or similar): Fetches only recently changed records. Runs on a timer for low-latency updates.

Advantages over a single bi-modal sync:

  • No phase discrimination in state — each sync has simple, focused state
  • No backfill-to-delta transition logic
  • Backfill and delta run independently — re-backfill anytime without disrupting delta
  • Easier to reason about and debug

Read the full file on GitHub · 423 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. 9d ago First seen · 423 lines · 29 tokens per session scan A 2d23c40d5208

Subscribe to this mod's changes

sync is a skill published in the GitHub repository makenotion/notion-cookbook (206 stars, last pushed 4d ago), licensed MIT. It adds 29 tokens to every session and 4,327 once invoked, about $0.0001 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 2026-08-30.

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