Conciseness

Several sections are pure boilerplate padding: "Working on cpp pro tasks or workflows", "Needing guidance, best practices, or checklists for cpp pro", "The task is unrelated to cpp pro", and "Clarify goals, constraints, and required inputs. Apply relevant best practices and validate outcomes" add zero C++-specific information. It is above 1 because the Focus Areas/Approach/Output sections themselves are lean lists with no concept explanations, but the volume of generic filler fits "noticeably verbose; several unnecessary... padded sections".

Actionability

There is some concrete guidance — "Prefer stack allocation and RAII", "Follow the Rule of Zero/Three/Five", "Profile with tools like perf and VTune", "Unit tests using Google Test or Catch2" — but no code examples, commands, or specific patterns, and the one pointer to detailed examples ("open `resources/implementation-playbook.md`") is a broken path. It is above 2 because specific tools and rules are named, but below 4 because nothing is executable or copy-paste ready and key details are missing.

Workflow Clarity

The Approach section lists six numbered directives, giving a rough sequence, but validation is only a vague "Apply relevant best practices and validate outcomes" with no checkpoint or feedback loop. The skill is not destructive/batch so no cap applies, and it is not 4 because validation is absent rather than a minor gap; it is above 2 because the steps are defined and coherent, just checkpoint-less.

Progressive Disclosure

The bundle contains five reference files (build-tooling.md, concurrency.md, memory-performance.md, modern-cpp.md, templates.md), yet none are mentioned or linked anywhere in the body, and the single reference the body does give — `resources/implementation-playbook.md` — does not exist (wrong directory and filename). Real references are effectively buried/invisible and navigation is broken, matching "minimal structure; ... references are buried"; it is above 1 only because the body itself is sectioned and not a monolithic wall of text.

Specificity

The description lists several concrete capability areas — "RAII, smart pointers, and STL algorithms", "templates, move semantics, and performance optimization" — with only minor gaps. It falls short of 5 because these are topic nouns rather than multiple distinct concrete actions with comprehensive coverage, and it stays above 3 because more than 1-2 specific items are named.

Completeness

The "what" is clear ("Write idiomatic C++ code with modern features... Handles templates, move semantics, and performance optimization") but there is no "Use when..." clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines. It is above 2 because the "what" is specific rather than vague, and below 4 because the "when" is entirely absent rather than merely imprecise.

Trigger Term Quality

Natural user phrases like "C++", "smart pointers", "templates", "move semantics", "performance optimization", and "RAII" are present and would be said by users needing this skill. It is not 5 because common variations users actually say — standard versions (C++11/17/20), "STL", "CMake", "segfault/memory leak" — are missing from the description.

Distinctiveness Conflict Risk

Terms like "RAII", "move semantics", "smart pointers", and "STL algorithms" carve out a distinct modern-C++ niche with only minor overlap risk against general coding or C-programming skills. It is not 5 because the opening "Write idiomatic C++ code with modern features" is broad enough to overlap with any general C++ assistance skill.