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 cosmicstack-labs/mercury-agent-skills --skill negotiationgit clone --depth 1 https://github.com/cosmicstack-labs/mercury-agent-skillsWrote 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/cosmicstack-labs/mercury-agent-skills/negotiation)<a href="https://agentmods.dev/skills/cosmicstack-labs/mercury-agent-skills/negotiation"><img src="https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/negotiation/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/cosmicstack-labs/mercury-agent-skills/negotiation"><img src="https://agentmods.dev/badge/skills/cosmicstack-labs/mercury-agent-skills/negotiation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00040 | $0.04025 |
| Opus 5 | $0.00020 | $0.02013 |
| Sonnet 5 | $0.00008 | $0.00805 |
| Haiku 4.5 | $0.00004 | $0.00402 |
Grade A, and why
negotiation 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 — 411 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Negotiation Skill
Core Principles
Negotiation is not about winning or losing — it is about creating value while protecting your interests. Every negotiation is an information exchange wrapped in a social dynamic. The best negotiators prepare relentlessly, listen more than they speak, and know exactly what they want before they walk in.
The Seven Pillars of Effective Negotiation
-
Preparation is everything. 80% of negotiation success happens before you sit at the table. The 10 minutes you spend preparing determine the outcome more than the hour you spend talking.
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Separate people from the problem. People are emotional, complex, and ego-driven. The problem is a puzzle to solve. Never let personal dynamics cloud the substantive issue.
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Focus on interests, not positions. A position is "I want $100k." An interest is "I want financial security and recognition." The first is rigid; the second opens creative solutions.
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Know your BATNA (Best Alternative To a Negotiated Agreement). This is your leverage. Without a strong BATNA, you have no power. Without knowing your BATNA, you have no anchor.
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Understand the ZOPA (Zone Of Possible Agreement). Where do your ranges overlap? If they don't, no deal is better than a bad deal.
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Information is leverage. The party with better information almost always gets a better outcome. Ask questions, gather data, listen carefully.
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Time pressure favors the patient. Whoever has the tighter deadline usually concedes more. Never appear rushed.
Negotiation Maturity Model
| Level | Name | Description |
|---|---|---|
| 1 | Intuitive | No formal preparation. Negotiates by instinct, reacts emotionally, takes positions personally. Often leaves money on the table. |
| 2 | Aware | Understands basic concepts like BATNA and anchoring. Prepares occasionally but inconsistently. Wins sometimes but can't explain why. |
| 3 | Structured | Consistently prepares using frameworks. Uses principled negotiation techniques. Separates people from problems. Creates value regularly. |
| 4 | Strategic | Proactively shapes the negotiation landscape. Manages information flow. Uses tactical empathy and calibrated questions. Handles multi-party deals. |
| 5 | Master | Negotiates unconsciously competently. Reads room dynamics instantly. Creates win-win outcomes that build long-term relationships. Can negotiate anything with anyone. |
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 · 411 lines · 40 tokens per session scan A e664eb82df83
negotiation is a skill published in the GitHub repository cosmicstack-labs/mercury-agent-skills (471 stars, last pushed 14d ago), licensed MIT. It adds 40 tokens to every session and 4,025 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 2026-08-30.
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