- Add dereferenceJsonSchema() that inlines local $ref pointers and strips
$defs/definitions from MCP tool schemas before they reach LLM providers.
Previously, Anthropic's convertTools() extracted only properties/required,
dropping $defs and leaving dangling $ref — the LLM never saw the actual
type definitions (e.g. SourceAnchorInput enum values from nucleus).
- Silence Ajv logger (logger: false) on all three instances that use
strict: false. MCP servers may declare non-standard format keywords
(e.g. "uint") that caused console.warn() to corrupt TUI output.
- Cache compiled Ajv validators per schema object identity in validation.ts,
eliminating redundant recompilation on every tool call.
Co-authored-by: Miroslav Drbal <miroslav.drbal@gendigital.com>