Conciseness

The body is dense and skill-specific with essentially no explanation of concepts Claude already knows, but there is trimmable redundancy: the "Recovering one node" section restates retry/send/amend doctrine and refusal codes that references/planning.md's Failure playbook also carries (which the body itself says it omits), and the `detach: false` semantics are explained twice (Running a dag and Run lifecycle).

Actionability

Concrete, executable JS SDK snippets cover define/node/start/wait, the lifecycle verbs, and every recovery call with argument shapes, plus the Python `tool.workflow` fallback with the critical `detach: False` detail. Minor gaps keep it from 5: `sdk.amend(runId, editedDefinition)` never shows how the edited definition is constructed, and the lifecycle example's `run_stub_1` placeholder is not runnable as-is.

Workflow Clarity

The sections follow true execution order with an explicit mandatory-first gate ("Do not call sdk.define... before reading" planning.md), goal binding before start, and hard validation checkpoints ("the run ends when the criteria pass, never when the last node reports completion", TREAT-AS-FALSE evidence verification, mid-run supervision against each node's prompt scope). Error-recovery feedback loops are explicit: retry with refusal remedies, send steering, amend re-runs of only changed nodes, and resume-by-key rules.

Progressive Disclosure

The SKILL.md is a well-signaled ~90-line overview whose single reference (references/planning.md, real and one level deep) is clearly flagged as mandatory reading, and doctrine is appropriately split. The minor gap is doctrinal overlap: the body's recovery section duplicates the failure-playbook material that planning.md owns, leaving both files partially redundant.

Specificity

"Drives dependency-ordered child work through the native workflow tool", "each phase's stages defined up front in one run", and "retry/amend/send recovery" list several concrete, domain-specific actions. It falls short of 5 because coverage has gaps: verification waves, supervision, and journaled resume (all first-class in the body) go unmentioned.

Completeness

Both questions are explicitly answered with concrete trigger phrases: the "what" ("Drives dependency-ordered child work... each phase's stages defined up front in one run, with retry/amend/send recovery") and a specific "Use when..." clause naming three trigger conditions. Third-person voice is used throughout.

Trigger Term Quality

"Use when the user asks for mass-ulw, a DAG of tasks, or fan-out work where some tasks must wait on others" gives good natural keywords (skill name, DAG, fan-out, dependency waiting) users would actually say. A few natural variations are missing (e.g. "dependencies between tasks", "run in order", "pipeline"), keeping it below comprehensive 5.

Distinctiveness Conflict Risk

The mass-ulw/DAG/fan-out-with-dependencies niche is mostly distinct, anchored by the unique skill name trigger. Minor overlap risk remains with sibling orchestration skills (ulw-loop, ulw-execute, generic workflow tooling) since "fan-out work" alone is broad and no negative boundary is given.