4 tagged instrumentation, measured the same way as everything else here.
Instructions file
Claude Code instructions for dash0hq/agent-skills, covering agent rules, audience, skill separation of concerns, otel-instrumentation vs otel-collector and keeping skill.md index lists in sync with rule files.
tortastudios/sentry-instrumentation
Instructions file CodexOpenCode
Instructions for tortastudios/sentry-instrumentation, covering agents guide — sentry-instrumentation, what this repo is, this repo has no "skill registry", if you're a codex agent asked to install this skill and skill-enable block (copy into consumer agents.md).
Instructions file
Instructions for Roee-Tsur/mcp-signal, covering claude.md, what this is, commands, architecture — destinations × transports, one contract and entry points — keep them separate.