feat(n8n): tool call validation, domain verifiers, agent domain routing#125
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…ng, cost table update - Add ToolCascadeValidator integration to LmChatCascadeFlow: validates drafter tool calls (JSON syntax, schema, safety) before accepting; escalates to verifier on failure. Gated behind enableToolCallValidation toggle (default off). - Add per-domain verifier support: each enabled domain can optionally have its own verifier model input port. During escalation, domain-specific verifier is used when available. New verifierToggleName field in DOMAIN_UI_CONFIGS. - Add full domain routing to CascadeFlowAgent: dynamic inputs expression, domain model/verifier getters, generateDomainProperties() reuse from LmChatCascadeFlow. Agent node bumped to version 2. - Add tool cascade validation to CascadeFlowAgentExecutor: validates tool calls before execution, re-generates via verifier on failure. - Update cost estimation table: corrected gpt-4o pricing, added gpt-5-mini, claude-3-5-haiku, claude-haiku-4-5, claude-sonnet-4-5, claude-sonnet-4, claude-opus-4-5.
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Summary
ToolCascadeValidatorbefore accepting them. Failed validation escalates to verifier. Gated behindenableToolCallValidationtoggle (default: off).{Domain} Verifier). During quality-check escalation, the domain-specific verifier is used when available.All new features are opt-in with
default: falsetoggles — fully backwards compatible.Test plan
pnpm test— 7/7 tests pass (2 test files)pnpm build— compiles cleanly (tsc + gulp icons)