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 openergit 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/opener)<a href="https://agentmods.dev/skills/sumitaich1998/opendate/opener"><img src="https://agentmods.dev/badge/skills/sumitaich1998/opendate/opener/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/opener"><img src="https://agentmods.dev/badge/skills/sumitaich1998/opendate/opener.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 | $0.00027 | $0.00583 |
| Opus 5 | $0.00014 | $0.00292 |
| Sonnet 5 | $0.00005 | $0.00117 |
| Haiku 4.5 | $0.00003 | $0.00058 |
Grade A, and why
opener 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.
How it starts
The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Opener
The first message decides whether there is a conversation. A great opener is specific, light, and easy to answer. It proves you read their profile and gives them an obvious, fun way to reply.
The formula
Observation + a little spin + an easy question.
- Observation — name one concrete detail (a bio line, a prompt answer, a thing in a photo). Specific > clever.
- Spin — add a tiny opinion, tease, or playful stake so it isn't just a compliment. Give them something to push back on.
- Open question — end with something they can answer in one breath. Avoid yes/no.
Rules
- One hook only. Don't reference five things; go deep on one.
- Keep it short. One or two sentences. Mobile-readable.
- No interview energy. "What do you do for fun?" is a dead end. Ask about a specific thing they already showed you.
- No generic compliments on looks. It reads as low-effort and can feel unsafe. Compliment a choice (their playlist, their dog's name) instead.
- Match their tone. A goofy profile gets a goofy opener; a dry one gets dry.
- Easy exit, easy entry. They should be able to reply in 5 seconds and smile.
Examples
- Bio mentions bouldering + judging coffee orders:
"Two important questions in order of seriousness: hardest send you're proud of, and exactly how much are you judging me for ordering an oat flat white?"
- Prompt "We'll get along if… you have strong taco opinions":
"I take this prompt as a personal challenge. Best taco in the city — and how wrong are you about to be?"
- Photo at a live show:
"Okay that crowd shot is unfair. Best concert you've been to, and is the recency bias strong right now?"
Do / Don't
- Do reference something only this person would have.
- Do leave them an obvious lane to be funny back.
- Don't send "hey" / "how's your weekend" / a lone emoji.
- Don't stack three questions; one is plenty.
Output
A single short message (1–2 sentences), ready to be rewritten in the user's
voice by persona-style-transfer.
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.
- 9d ago First seen · 61 lines · 27 tokens per session scan A 3f267b9e0765
opener is a skill published in the GitHub repository sumitaich1998/OpenDate (2 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 583 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.
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