Lean, table-dense reference material that assumes Claude's competence and avoids explaining basic concepts (channels, goroutines, generics); every section earns its tokens with decision tables and operator catalogs.

Provides a complete executable Go example (Pipe2 + Subscribe with all three callbacks and Collect), a concrete `go get` install command, and specific operator/subject names that are copy-paste ready.

Decision guidance (when-to-use table, Common Mistakes, Best Practices) is well organized, but there is no explicit sequenced multi-step workflow with validation checkpoints of the kind the top anchor requires, and pipeline construction is only implicitly sequenced.

SKILL.md is a clear overview with four well-signaled, one-level-deep references (subjects-guide, operators-guide, plugin-ecosystem, patterns), all of which exist as real files, keeping detail out of the main body.

Lists multiple concrete capabilities ('150+ type-safe operators', '5 subject types (Publish, Behavior, Replay, Async, Unicast)', 'declarative pipelines via Pipe', '40+ plugins', 'automatic backpressure, error propagation, and Go context integration') rather than vague language.

Clearly answers both what the skill does and when to use it via an explicit 'Apply when using or adopting samber/ro...' trigger clause.

Covers natural terms users would say ('asynchronous event-driven pipelines, real-time data processing, streams, or reactive architectures in Go') plus a concrete import-path trigger ('codebase imports github.com/samber/ro').

Has a clear niche (ReactiveX streams in Go) and explicitly disambiguates with 'Not for finite slice transforms (→ See `samber/cc-skills-golang@golang-samber-lo` skill)', reducing conflict with sibling skills.