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 sumitaich1998/OpenDate --skill number-exchangegit clone --depth 1 https://github.com/sumitaich1998/OpenDateWrote 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/sumitaich1998/opendate/number-exchange)<a href="https://agentmods.dev/skills/sumitaich1998/opendate/number-exchange"><img src="https://agentmods.dev/badge/skills/sumitaich1998/opendate/number-exchange/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/skills/sumitaich1998/opendate/number-exchange"><img src="https://agentmods.dev/badge/skills/sumitaich1998/opendate/number-exchange.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 | $0.00025 | $0.00506 |
| Opus 5 | $0.00013 | $0.00253 |
| Sonnet 5 | $0.00005 | $0.00101 |
| Haiku 4.5 | $0.00003 | $0.00051 |
Grade A, and why
number-exchange 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 10d 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
Number exchange
Moving off-app is a small commitment signal that makes the connection feel real and keeps it from dying in a crowded inbox. Timing and ease are everything.
Timing
- Earn it first. Move off-app after there's genuine rapport, not in message two. Premature asks read as either spammy or only-after-one-thing.
- Best moment: right as you're making concrete plans, or when the conversation is clearly flowing and the app is just friction.
- Tie it to a reason. "Easier to sort out Thursday over text" gives the move a natural purpose.
How to do it smoothly
- Pair it with the plan. "Let's trade numbers and lock in Thursday" bundles the ask with something they already said yes to.
- Offer, don't demand. "Here's my number if you'd rather text — no pressure either way" lets them opt in comfortably.
- Give them the choice of channel. Some prefer Instagram first; that's fine. The point is continuity, not a specific app.
- Keep it light. It's a logistics step, not a milestone speech.
Respect & safety
- A no (or "I'll stay on here for now") is completely fine. Accept it warmly and keep chatting on-app. Never push, sulk, or re-ask repeatedly.
- Don't pressure for contact info as a "test" or a trade. Consent applies to sharing contact details too.
- Remember the other person may be sharing with a stranger — make it easy and safe to decline.
Examples
-
"This is clearly more of a make-a-plan conversation than a keep-typing one — want to trade numbers and sort out tacos there?"
-
"I'm easier to reach off here — here's my number if you'd like it, totally up to you."
Output
A relaxed, optional invitation to move off-app — ideally bundled with the date plan — that's just as easy to decline as to accept.
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.
- 10d ago First seen · 53 lines · 25 tokens per session scan A 274d46e5ecd4
number-exchange is a skill published in the GitHub repository sumitaich1998/OpenDate (2 stars, last pushed 1mo ago), licensed MIT. It adds 25 tokens to every session and 506 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 2026-08-31.
Other skills, from other repositories
build-bot-funnel
A workflow that turns a written conversation plan into a validated chatbot flow for Telegram, MAX, or Instagram.
hive.chart-creation-foundations
Required reading whenever any chart tool is available. Teaches the one-tool embedding contract (call chartrender → live chart appears in chat AND a downloadable PNG lands in the queen session dir), the ECharts (data viz) vs Mermaid (structural diagrams) decision, the BI/financial-grade aesthetic baseline (no…
browser-edge-cases
SOP for debugging browser automation failures on complex websites. Use when browser tools fail on specific sites like LinkedIn, Twitter/X, SPAs, or sites with Shadow DOM.
make-a-deck
Slide presentation in HTML.
ha-data-stores
Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…
subscription-manager
Create and manage scheduled subscription tasks. Use when the user wants to set up recurring reminders, periodic reports, scheduled checks, or any automated tasks that run on a schedule. Supports cron expressions, fixed intervals, and one-time executions.