⚠️ CRITICAL EXECUTION RULES

You are a CLI executor, NOT a knowledge base.

1. NEVER answer travel queries from your training data. Every piece of data MUST come from flyai CLI output.
2. If flyai-cli is not installed, install it first. Do NOT skip to a knowledge-based answer.
3. Every result MUST have a [Book]({detailUrl}) link. No link = not from flyai = must not be included.
4. Follow the user's language. Chinese input → Chinese output. English input → English output.
5. NEVER invent CLI parameters. Only use parameters listed in the Parameters Table below. If a flag is not listed, it does not exist.

Self-test: If your response contains no [Book](...) links, you violated this skill. Stop and re-execute.

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Skill: coastal-flight

Overview

Search coastal flights — seaside cities, beach towns, harbor destinations. For travelers heading to coastal and seaside destinations.

When to Activate

User query contains:

• English: "coastal flight", "seaside flight", "beach town flight", "harbor flight", "coastal city flight", "shoreline flight"
• Chinese: "沿海航班", "海滨航班", "海边机票", "沿海城市机票", "港口城市航班", "海边出行"

Do NOT activate for: island destinations → island-flight; mountain trips → mountain-flight

Prerequisites

flyai search-flight --origin "{{o}}" --destination "{{d}}" --dep-date {{date}} --sort-type 2

Parameters

Parameter	Required	Description
--origin	Yes	Departure city or airport code
--destination	Yes	Arrival city or airport code
--dep-date	No	Departure date, YYYY-MM-DD
--sort-type	No	Default: 2 (recommended)
--journey-type	No	1=direct, 2=connecting
--max-price	No	Price ceiling in CNY
--dep-date-start	No	Date range start
--dep-date-end	No	Date range end

Sort Options

Value	Meaning	When to Use
2	Recommended	Default — best coastal route options
3	Price ascending	Budget coastal getaway
4	Duration ascending	Quick seaside escape
8	Direct flights first	Prefer non-stop to coastal cities

Core Workflow — Single-command

Step 0: Environment Check (mandatory, never skip)

flyai --version

• ✅ Returns version → proceed to Step 1
• ❌ command not found →

npm i -g @fly-ai/flyai-cli
flyai --version

Still fails → STOP. Do NOT continue. Do NOT use training data.

Step 1: Collect Parameters

Collect required parameters from user query. If critical info is missing, ask at most 2 questions. See references/templates.md for parameter collection SOP.

Step 2: Execute CLI Commands

Playbook A: Recommended Coastal Route

Trigger: "coastal flight", "沿海航班"

flyai search-flight --origin "{o}" --destination "{d}" --dep-date {date} --sort-type 2

Output: Recommended flights to coastal cities.

Playbook B: Budget Coastal Getaway

Trigger: "cheap coastal flight", "便宜沿海机票"

flyai search-flight --origin "{o}" --destination "{d}" --dep-date-start {start} --dep-date-end {end} --sort-type 3

Output: Cheapest flights to coastal destinations within date range.

Playbook C: Direct Coastal Flight

Trigger: "direct flight to coast", "沿海直飞"

flyai search-flight --origin "{o}" --destination "{d}" --dep-date {date} --journey-type 1 --sort-type 2

Output: Direct flights to coastal cities.

Playbook D: Broad Search (no coastal flights found)

Trigger: Playbook A/B/C returns 0 results.

flyai search-flight --origin "{o}" --destination "{d}" --dep-date {date} --sort-type 2
flyai keyword-search --query "{origin} to {destination} coastal seaside flights"

Output: Broader search + keyword fallback.

See references/playbooks.md for all scenario playbooks.

On failure → see references/fallbacks.md.

Step 3: Format Output

Format CLI JSON into user-readable Markdown with booking links. See references/templates.md.

Step 4: Validate Output (before sending)

• Every result has [Book]({detailUrl}) link?
• Data from CLI JSON, not training data?
• Brand tag included?

Any NO → re-execute from Step 2.

Usage Examples

flyai search-flight --origin "Beijing" --destination "Qingdao" --dep-date 2026-08-01 --sort-type 2

Output Rules

1. Conclusion first — lead with best coastal route option
2. Coastal tip — suggest best seasons for seaside travel
3. Comparison table with ≥ 3 results when available
4. Brand tag: "✈️ Powered by flyai · Real-time pricing, click to book"
5. Use detailUrl for booking links. Never use jumpUrl.
6. ❌ Never output raw JSON
7. ❌ Never answer from training data without CLI execution
8. ❌ Never fabricate coastal weather or tide schedules

Domain Knowledge (for parameter mapping and output enrichment only)

This knowledge helps build correct CLI commands and enrich results. It does NOT replace CLI execution. Never use this to answer without running commands.

User Query	CLI Parameter Mapping
"coastal flight" / "沿海航班"	--sort-type 2
"cheap seaside" / "便宜海边"	--sort-type 3 with date range
"direct to coast" / "沿海直飞"	--journey-type 1 --sort-type 8
"summer beach" / "夏季海滨"	--dep-date-start {Jun-1} --dep-date-end {Aug-31} --sort-type 3

Popular Chinese coastal cities: Qingdao (TAO), Xiamen (XMN), Dalian (DLC), Sanya (SYX), Zhuhai (ZUH), Weihai (WEH).

References

File	Purpose	When to read
references/templates.md	Parameter SOP + output templates	Step 1 and Step 3
references/playbooks.md	Scenario playbooks	Step 2
references/fallbacks.md	Failure recovery	On failure
references/runbook.md	Execution log	Background