Move get_instruments off the per-exchange Deribit router and onto the
unified interface, without losing the advanced Deribit filtering.
- /mcp/tools/get_instruments now accepts the Deribit-specific filters
(currency, kind, expiry_from/to, strike_min/max, min_open_interest) and
pagination (offset/limit). Venues that list everything (Hyperliquid)
ignore them. Response adds `meta: {deribit: {total, offset, limit,
has_more}}` surfacing per-source pagination.
- Remove /mcp-deribit/tools/get_instruments (endpoint + tool wrapper +
GetInstrumentsReq schema). The DeribitClient.get_instruments METHOD
stays — it's what the unified normalizer calls.
Tests: cover the enriched filters + meta passthrough; app-boot asserts
/mcp-deribit/tools/get_instruments is gone. Docs (API_REFERENCE/README/
CLAUDE) and smoke updated; also fixed the stale Hyperliquid tool count
(14 → 15) found during the doc check.
325 passed, ruff clean. Verified live: kind=option limit=5 → 5/940
has_more=true; /mcp-deribit/tools/get_instruments → 404.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adriano
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