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 CALLE-AI/awesome-phone-call-agents --skill hifi-hotel-negotiatorgit clone --depth 1 https://github.com/CALLE-AI/awesome-phone-call-agentsWrote 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/calle-ai/awesome-phone-call-agents/hifi-hotel-negotiator)<a href="https://agentmods.dev/skills/calle-ai/awesome-phone-call-agents/hifi-hotel-negotiator"><img src="https://agentmods.dev/badge/skills/calle-ai/awesome-phone-call-agents/hifi-hotel-negotiator/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/calle-ai/awesome-phone-call-agents/hifi-hotel-negotiator"><img src="https://agentmods.dev/badge/skills/calle-ai/awesome-phone-call-agents/hifi-hotel-negotiator.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 | $0.00034 | $0.00888 |
| Opus 5 | $0.00017 | $0.00444 |
| Sonnet 5 | $0.00007 | $0.00178 |
| Haiku 4.5 | $0.00003 | $0.00089 |
Grade A, and why
hifi-hotel-negotiator 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 today.
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 — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HiFi Hotel Negotiator
Overview
hifi-hotel-negotiator is a goal-driven phone execution skill designed for the CALL-E platform. Instead of accepting static online aggregator prices, this agent calls shortlisted hotels directly, verifies availability and hidden policies (taxes, resort fees, breakfast, cancellation), politely negotiates direct-booking discounts or complimentary value-adds, and returns verified structured JSON offers.
Supported Call Modes
- Discovery & Verification Call: Verify exact dates, room occupancy, nightly/total rates, breakfast cost, airport transfers, and cancellation terms. See
references/hotel-discovery.md. - Direct Rate Negotiation: Politely inquire about preferential direct rates, complimentary breakfast, free airport shuttles, or complimentary room upgrades. See
references/negotiation-policy.md. - Reservation Confirmation Call: Re-verify negotiated rate, dates, and inclusions with the front desk and obtain the official booking reference number. See
references/confirmation-policy.md.
Required Call Inputs
| Input Field | Type | Description | Example |
|---|---|---|---|
hotel_name |
String | Official hotel name | "Ocean Pearl Resort" |
hotel_phone |
String (E.164) | Validated hotel front-desk phone | "+15550101234" |
check_in |
ISO Date | Arrival date | "2026-10-12" |
check_out |
ISO Date | Departure date | "2026-10-17" |
adults |
Integer | Number of adult guests | 2 |
children |
Integer | Number of children | 0 |
rooms |
Integer | Number of rooms required | 1 |
budget_cap |
Number | Maximum total budget limit | 50000 |
currency |
String | Currency code | "INR" |
preferences |
Object | Desired perks (breakfast, free cancellation, transfer) | { breakfast: true, cancellation: true } |
Verification Checklist
The voice agent must explicitly verify:
- Room availability for requested dates and party size.
- Quoted room category and max occupancy.
- Total price for the entire stay and whether taxes are included.
- Any mandatory resort or facility fees.
- Daily breakfast inclusions and pricing.
- Advance deposit or prepayment requirements.
- Cancellation policy and deadline.
- Airport transfer options and cost.
What ships with it
9 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.
- examples/hotel-negotiation-example.md 2.3 KB
- references/confirmation-policy.md 511 B
- references/examples.md 2.8 KB
- references/hotel-discovery.md 1.1 KB
- references/negotiation-policy.md 781 B
- references/result-schema.md 1.7 KB
- references/safety.md 1.9 KB
- scripts/test_validate_offer.py 793 B runs code
- scripts/validate_offer.py 1.8 KB runs code
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.
- today First seen · 72 lines · 34 tokens per session scan A 85cba702e61d
hifi-hotel-negotiator is a skill published in the GitHub repository CALLE-AI/awesome-phone-call-agents (88 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 888 once invoked, about $0.0002 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 2026-09-12.
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