Release neuron v0.3.0 · secbear/skelegent

What's New in v0.3.0

This release adds four Pydantic AI-inspired features, a new OpenTelemetry crate, and comprehensive CI improvements.

Usage Limits (UsageLimits) — enforce token, request, and tool-call budgets with configurable limits checked at three points per loop iteration, including streaming
Tool Timeout Middleware (TimeoutMiddleware) — per-tool timeout enforcement via the ToolMiddleware pipeline using tokio::time::timeout
Structured Output Validation (StructuredOutputValidator, RetryLimitedValidator) — JSON Schema validation of model output with ToolError::ModelRetry self-correction loop
OpenTelemetry Instrumentation (neuron-otel crate) — OtelHook implementing ObservabilityHook with tracing spans following GenAI semantic conventions (gen_ai.chat, gen_ai.execute_tool, etc.)

Fixed run_stream() missing usage limit enforcement entirely (3 checkpoints added)
Fixed workspace dependency versions for correct crates.io resolution

neuron-otel — OpenTelemetry instrumentation with opt-in content capture, span hierarchy, and privacy-safe defaults