Conciseness

The "ports are dynamic / sub-agents don't need ports" point is repeated four times (Test Map note, Phase 3, and twice under Key Design Decisions), the Key Design Decisions section restates Phase 3–4 content, and "Boolean values must be JSON booleans" is a test-authoring detail that belongs in the sub-skills. Mostly efficient, but several sections could be tightened — matching anchor 3 rather than 4, where over-explanation would be only minor.

Actionability

Every phase supplies copy-paste-ready commands ("node scripts/test-prep.mjs install", "node scripts/test-servers.mjs start/ports/stop", "pnpm build:tgz"), a verbatim sub-agent prompt template with substitution placeholders, and a concrete retry policy with explicit limits. Fully executable guidance covering the common cases; not 4, as there are no real gaps in executable detail.

Workflow Clarity

The Phase 1–7 sequence is clearly ordered with explicit checkpoints ("All must succeed. **Stop on failure.**", 60s server-readiness timeout, 20-minute hard timeout, retry limits, troubleshooting section). However, Phase 5's "**Do NOT poll, do NOT run bash commands to check output files**" directly contradicts Key Design Decisions' "Use `Read` tool on the output_file to check progress", and Phase 5 says to "proceed to Phase 7" without routing through Phase 6's retry decision — matching anchor 4 (minor gaps), not 5.

Progressive Disclosure

The skill is a single self-contained file with well-organized sections (Test Map, phases, design decisions, troubleshooting), and its references to the per-test SKILL.md files are clearly signaled in the Test Map table. Good structure with minor organization gaps — at ~250 lines, content like the troubleshooting section and sub-agent prompt template could arguably live in separate files; not 5, but comfortably above anchor 3's 'content that should be separate is inline'.

Specificity

"Runs all 9 test suites concurrently via Task sub-agents and the iwsdk CLI. Handles build, example setup, dev servers, agent launch, polling, retries, and result aggregation" lists seven concrete actions plus the execution mechanism, matching the comprehensive-coverage anchor. Not 4: there are no minor coverage gaps — the full orchestration lifecycle is enumerated.

Completeness

The "what" is clear ("Parallel test orchestrator. Runs all 9 test suites concurrently... Handles build, example setup, dev servers..."), but there is no "Use when..." clause or equivalent explicit trigger guidance, which the guidelines cap at 3. Not 4: the "when" is entirely absent rather than merely under-specified.

Trigger Term Quality

Natural keywords like "test", "test suites", "build", "dev servers", "retries", and "result aggregation" give good coverage of what a user would say. Not 5: it lacks common synonyms and variations ("run all tests", "regression", "CI"); not 3: keyword coverage is good, not merely 'some relevant keywords'.

Distinctiveness Conflict Risk

"Parallel test orchestrator... all 9 test suites... iwsdk CLI" carves a distinct orchestrator niche, but it overlaps with the closely related per-suite test-* skills it dispatches to, which share the testing trigger space. Not 5: minor overlap risk with those closely related skills; not 3: the orchestrator role is clearly differentiated from running a single suite.