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.
npx skills add synmux/myriad --skill notion-datetime-example-skillgit clone --depth 1 https://github.com/synmux/myriadWrote 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/skills/synmux/myriad/notion-datetime-example-skill)<a href="https://agentmods.dev/skills/synmux/myriad/notion-datetime-example-skill"><img src="https://agentmods.dev/badge/skills/synmux/myriad/notion-datetime-example-skill.svg" alt="Measured on agentmods" 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 | $0.00079 | $0.00363 |
| Opus 5 | $0.00039 | $0.00181 |
| Sonnet 5 | $0.00016 | $0.00073 |
| Haiku 4.5 | $0.00008 | $0.00036 |
Grade A, and why
notion-datetime 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 7d 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
Notion DateTime Skill
Insert formatted timestamps into Notion documents using the Notion MCP.
Workflow
- Run
scripts/format_datetime.pyto get the formatted timestamp - Use the Notion MCP to insert the timestamp into the target page
Usage
# Default format (ISO 8601)
python scripts/format_datetime.py
# Specific format
python scripts/format_datetime.py --format human
python scripts/format_datetime.py --format iso
python scripts/format_datetime.py --format date-only
python scripts/format_datetime.py --format time-only
# Custom strftime format
python scripts/format_datetime.py --format custom --pattern "%A, %d %B %Y at %H:%M"
Notion Integration
After obtaining the formatted timestamp, use the Notion MCP's notion-update-page tool to insert it. Common patterns:
Append to page content:
command: insert_content_after
selection_with_ellipsis: "<last paragraph>..."
new_str: "\n\n**Last updated:** {timestamp}"
Update a property (for database pages):
command: update_properties
properties: {"Last Updated": "{timestamp}"}
Format Reference
See references/datetime-formats.md for format examples and use cases.
What ships with it
2 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.
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.
- 7d ago First seen · 53 lines · 79 tokens per session scan A f2d677807bbc
notion-datetime is a skill published in the GitHub repository synmux/myriad (2 stars, last pushed today), licensed MIT. It adds 79 tokens to every session and 363 once invoked, about $0.0004 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 2026-08-31.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…
chronicle
Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting…
babysit-pr
Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…