Group repeated session tool availability and provider capability facts, preserve complete named contracts and ordered limitations, and remove duplicate catalog descriptors. Update consumers and migration guidance.
Validated by all 31 CI jobs, focused source checks, and actual Claude Code/Linux Hopper/native Windows Ghidra small-target workflows on the current integration tree.
Refs #723.
BREAKING CHANGE: binary_session no longer includes server_identity.catalog.tools; tool_availability and provider capabilities use grouped facts documented in docs/mcp-contracts.md.
Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>
Replace empty tuples with a shared empty-array schema. Validate all input
and output schemas against Draft 2020-12 during catalog generation and
packaged MCP verification, with runtime and catalog regression coverage.
Closes#528
Assisted-by: Kogasa (gensokyo-skills:kogasa-surprise-testing)
