📌 TL;DR
OpenTelemetry Weaver is a powerful tool that brings observability-by-design into practice. It empowers teams to standardize, automate, and maintain telemetry data through semantic conventions—offering type safety, validation, documentation, and deployment in one package ([OpenTelemetry][1]).
Why Weaver Matters
Weaver addresses common issues in telemetry reliability and consistency:
- Broken alerts due to metric name changes
- Hard-to-read queries from inconsistent naming
- Undocumented telemetry leading to confusion
- Missing instrumentation, only discovered in production ([GitHub][2])
By treating telemetry signals (traces, metrics, logs) like code APIs, Weaver ensures they are versioned, consistent, and documented upfront.
Core Features
OTel Weaver supports:
| Capability | Description |
|---|---|
| Schema Definition | Define telemetry schemas via semantic conventions. |
| Validation | Validate telemetry against defined schemas manually or in CI. |
| Type-safe Code Gen | Generate idiomatic client SDKs (Go, Rust, etc.) from those schemas. |
| Documentation Gen | Auto-generate markdown docs for your signals. |
| Live Checking | Integrate in CI or runtime to ensure emitted telemetry conforms ([Honeycomb][3], [GitHub][2], [GitHub][4]). |
How It Works
At its core, Weaver is a CLI and platform tool that uses a schema-first workflow:
- Search or resolve semantic convention registries and schemas.
- Validate schemas via the CLI.
- Generate client SDKs, docs, or dashboards using its built‑in template engine or custom WASM plugins ([GitHub][4]).
Current Maturity & Roadmap
- Versioned as CLI v0.X, Weaver is production-ready with active releases (v0.16.1 as of July 4, 2025) ([GitHub][2])
- Future roadmap includes expanding language support, integrating OTel Arrow Protocol, adding SDK masking, obfuscation, and a richer ecosystem with WASM plugins for data catalogs, privacy compliance, dashboards, and more ([GitHub][4]).
Learn More
Get Better OpenTelemetry with Weaver
Check out the CNCF 2025 presentation “Observability by Design” and the SRECon talk “OpenTelemetry Semantic Conventions and How to Avoid Broken Observability”, both linked in the repo ([GitHub][2]).
💡 Quick Take
OTel Weaver elevates telemetry from artistry to engineering discipline. It helps teams define telemetry as a "public API," bringing consistency, traceability, and automation. Ideal for organizations prioritizing high-quality, maintainable observability at scale.
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