feat: improve skill review scores (+21% avg across 5 skills)

[rohan-tessl]

Hey @gate 👋

I ran your skills through tessl skill review at work and found some targeted improvements.

Here's the full before/after:

Skill	Before	After	Change
gate-exchange-affiliate	68%	93%	+25%
gate-exchange-collateralloan	69%	93%	+24%
gate-exchange-referral	69%	93%	+24%
gate-mcp-cursor-installer	69%	87%	+18%
gate-exchange-marketanalysis	69%	84%	+15%

This PR is intentionally scoped to 5 skills to keep the review manageable — more skills can be improved in follow-ups or via automated review on future PRs.

Changes summary

gate-exchange-affiliate (68% → 93%)

• Expanded frontmatter description with specific concrete actions and trigger terms
• Eliminated repeated user_id warnings (stated 5-6 times → once in Critical Rules)
• Made aggregation rules concrete: group by asset type, deduplicate across paginated responses
• Moved bulk API reference, report templates, and validation examples to existing references/ files
• Consolidated error handling into clean table format
• Reduced from 641 lines to 182 while preserving all routing logic

gate-exchange-collateralloan (69% → 93%)

• Expanded description with specific loan actions (create, repay, add/redeem collateral, check LTV)
• Removed duplicate MCP tool listing (already documented in Available MCP Tools table)
• Added concrete JSON examples for all three write operations
• Added post-execution verification step (Step 6)
• Eliminated redundant Judgment Logic Summary and Domain Knowledge sub-flows

gate-exchange-referral (69% → 93%)

• Expanded description with specific actions and added "commission rebate" trigger
• Consolidated Case Routing Map, Judgment Logic, and Workflow into unified 3-step workflow
• Moved detailed product definitions and 14-case routing to references/ via progressive disclosure
• Reduced URL repetition (defined once instead of 7+ times)
• Reduced from 256 lines to 161

gate-mcp-cursor-installer (69% → 87%)

• Expanded description with specific configuration actions
• Consolidated four redundant MCP server listings into single authoritative Resources table
• Removed cross-IDE references (Codex, Claude, OpenClaw) — skill is Cursor-specific
• Added complete mcp.json example showing expected output
• Added verification step with JSON validity checks

gate-exchange-marketanalysis (69% → 84%)

• Rewrote description with action verbs and added trigger terms
• Consolidated triple-redundant sections (Sub-Modules, Routing Rules, Domain Knowledge) into single Scenario Routing table
• Added inline MCP call example for spot liquidity analysis
• Added error handling and degradation steps
• Reduced from 127 lines to 100

Honest disclosure — I work at @tesslio where we build tooling around skills like these. Not a pitch - just saw room for improvement and wanted to contribute.

Want to self-improve your skills? Just point your agent (Claude Code, Codex, etc.) at this Tessl guide and ask it to optimize your skill. Ping me - @rohan-tessl - if you hit any snags.

Thanks in advance 🙏