fix: add missing openclaw metadata to 19 skills

[kome12]

Newly added skills (batch-wallet, fund-watch, perp-scan, etc.) were missing the requires/primaryEnv/install metadata and allowed-tools directive that was present in the original skills.

This caused smithery.ai to display them without install/auth context.

Fix: Added the standard openclaw metadata block to all 19 affected SKILL.md files:

metadata:
  openclaw:
    requires:
      env:
        - NANSEN_API_KEY
      bins:
        - nansen
    primaryEnv: NANSEN_API_KEY
    install:
      - kind: node
        package: nansen-cli
        bins: [nansen]
allowed-tools: Bash(nansen:*)

Skills patched: nansen-batch-wallet, nansen-cross-chain-flow, nansen-dca-watch, nansen-defi-exposure, nansen-exit-signal, nansen-fund-watch, nansen-holder-quality, nansen-perp-scan, nansen-perp-trader, nansen-pm-deep-dive, nansen-pm-insider-scan, nansen-polymarket-trader, nansen-portfolio-history, nansen-prediction-market, nansen-sm-trend, nansen-token-discovery, nansen-token-forensics, nansen-wallet-analysis, nansen-wallet-attribution

No logic changes — metadata only.

[nansen-pr-reviewer]

pr-reviewer Summary

✅ No issues found

The code review completed successfully with no findings.

Review effort: 1/5 (Trivial)

Summary

This is a clean, metadata-only fix that adds the missing openclaw frontmatter block to 19 SKILL.md files so they display correctly on smithery.ai. No logic, behavior, or executable code is changed.

The added metadata block is identical across all 19 files and exactly matches the structure present in the original skills (e.g., nansen-alerts/SKILL.md). The one exception — nansen-prediction-market — correctly adds only 12 lines instead of 13 because it already had the allowed-tools: Bash(nansen:*) directive; only the metadata block was missing. All 28 skills in the repo now have complete openclaw metadata confirmed by inspection.

The changeset entry is correct (patch bump). No findings.

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Token usage: 482 input, 2,083 output, 119,612 cache read, 19,325 cache write