Conciseness

The body is dense and purposeful — a decision table, exact package names, and numbered checklists with no explanation of concepts Claude already knows — but it could be tightened: the dual-SDK server/client 7-item lists are near-mirrors that could merge, and `.env`/`.gitignore` handling is repeated across 'Files to modify', 'Environment variable convention', and 'Present the plan'. These are minor instances of over-explanation, matching the 4 anchor rather than the lean 5 anchor, but well above the noticeably-verbose 3 anchor.

Actionability

For an instruction-only planning skill the guidance is fully actionable: exact artifacts (`launchdarkly-react-client-sdk`, `LaunchDarkly.ServerSdk` vs `LaunchDarkly.ClientSdk`, `launchdarkly_flutter_client_sdk`), exact env var names (`LAUNCHDARKLY_SDK_KEY`, `NEXT_PUBLIC_...` client-side IDs), a 14-row SDK decision table, and a numbered presentation format with per-track rules covering the common cases (Next.js, React, .NET, Flutter, Node). Per the rubric's code-vs-instruction note, deferring install commands and init code to the recipes reference is appropriate delegation, not a gap.

Workflow Clarity

The sequence is clear and gated: choose SDK → dual-SDK handling → plan files/code/env → present plan → D6 non-blocking gate → hand off to Apply, with explicit feedback loops ('If the user objects or says something looks wrong, stop and adjust', 'If you cannot name two packages and two entrypoints, you are not done planning') and checklists for the complex dual-SDK case. Blocking vs non-blocking decision points (D6, ambiguous entrypoints, D7/D8 deferred to apply) are explicitly labeled — matching the 5 anchor's validation steps and error-recovery loops.

Progressive Disclosure

The SKILL.md is an overview that pushes detail to well-signaled, one-level-deep references — [SDK recipes](../../references/sdk/recipes.md) with guidance on which section to start with, `snippets/`, the [Observability plugin](../../references/sdk/observability-plugin.md) reference, and sibling detect/apply skills — each linked with a description of what it contains. Inline content (decision table, distinctions) is decision logic that belongs in the main file, and navigation is easy; no nested-reference chains or inlined bulk reference material.

Specificity

The description lists multiple concrete actions — 'Generate a minimal LaunchDarkly SDK integration plan', 'choose SDK type(s)', 'dual-SDK server+client when required', 'files to change', 'env conventions' — giving comprehensive coverage of the planning task with no vague filler. It is not the 4 anchor because nothing material to the task is left as a minor gap; every named capability is concrete.

Completeness

The 'what' is explicit and multi-part (choose SDK types, dual-SDK handling, files to change, env conventions), and the 'when' is explicitly stated via 'follows detect, precedes apply' rather than weakly implied — matching the 4 anchor where both are present but 'when' could be more specific. It is not a 5 because there are no concrete user-need trigger phrases ('Use when...') equivalent to the anchor's 'when the user mentions PDFs, forms...'; it is not a 3 because the sequencing clause explicitly positions the skill rather than leaving 'when' missing or merely implied.

Trigger Term Quality

Good natural keyword coverage: 'LaunchDarkly', 'SDK integration', 'integration plan', 'server+client', 'dual-SDK' — phrases a user setting up LaunchDarkly would actually say. It falls short of the 5 anchor because common synonyms like 'feature flags' and 'onboarding' are absent, which would catch users who describe the goal rather than the mechanism.

Distinctiveness Conflict Risk

A clear niche — 'LaunchDarkly SDK integration plan' nested under 'sdk-install' with explicit sibling positioning ('follows detect, precedes apply') — makes it highly distinguishable from generic planning or SDK skills and from its own detect/apply siblings. Minimal conflict risk with distinct triggers.