Conciseness

The body is dense and prescriptive with no explanation of concepts Claude already knows and no padding — every rule is repo-specific. It is not a 5 because a few sentences (e.g. the OHOS composition bullets) could be tightened further.

Actionability

The Quick Reference table maps each change type to an exact executable command ('./frb_internal precommit-generate', etc.), and rules cite concrete path patterns like 'frb_example/**/rust/src/api/*.rs' and 'frb_codegen/assets/integration_template/**/cargokit'. Guidance is fully executable and covers the common cases.

Workflow Clarity

Sequences are explicit ('Run the narrowest owning generator before broad generation'), validation checkpoints are concrete ('Run the owning generation command a second time and require a clean diff', 'treat the generated outputs as suspect until validated from a clean environment'), and failure recovery is specified ('Restore the original package if create, dependency resolution, code generation, formatting, or the final swap fails'). Full feedback loops are present.

Progressive Disclosure

No bundle files exist, and the body is well-organized into clearly signaled sections with one-level pointers to sibling skills (frb-dev-env, frb-fix-ci, frb-cargokit). It is not a 5 because ~90 lines of inlined detail (the provenance table and OHOS composition rules) would fit better in a references/ file.

Specificity

The description names the domain (flutter_rust_bridge codegen) and one concrete action ("to select generation commands"), but the companion phrase "preserve source-of-truth and convergence rules" is abstract rather than a second concrete action. It matches the anchor 'names domain and 1-2 concrete actions, but not comprehensive' rather than anchor 4's 'several specific actions.'

Completeness

Both 'what' and 'when' are present: an explicit "Use when modifying..." trigger clause plus the embedded action "to select generation commands and preserve source-of-truth and convergence rules". It is not a 5 because the 'what' is tangled inside the 'when' clause rather than clearly stated as the skill's own capability.

Trigger Term Quality

"Rust APIs", "codegen", "generated examples", "platform scaffolds", and "flutter_rust_bridge" are natural phrases a user in this repo would say, giving good keyword coverage. It falls short of anchor 5 because no synonyms or file/path variations are included.

Distinctiveness Conflict Risk

The flutter_rust_bridge codegen niche is clear and triggers are distinct from generic skills. However, closely related sibling skills (frb-fix-ci, frb-cargokit, frb-dev-env) cover adjacent change/CI scenarios, creating minor overlap risk rather than minimal conflict.