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testland/flag-state-coverage-builder

Workflow-driven skill that builds a flag-state coverage matrix from the project's flag inventory and risk register. Walks through: inventorying flags (grep for flag-evaluation calls), classifying each (boolean / multi-variant / kill-switch / experiment), choosing the coverage strategy (per-flag-isolation / pairwise / full / risk-driven per feature-flag-test-matrix-reference), generating the test matrix (PICT for pairwise; manual for risk-driven), and emitting test skeletons. Use when introducing flag-test coverage to a new codebase or when a flag-related incident exposes a coverage gap.

73

Quality

92%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

Overview
Quality
Evals
Security
Files

Quality

Content

80%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A dense, actionable body with concrete commands, code, and well-organized tables across a clear seven-step sequence. It is held back by the absence of an explicit validation checkpoint in the generation workflow and by a monolithic inline structure with no bundle files for progressive disclosure.

Suggestions

Add an explicit verification step (e.g., Step 4.5: run the emitted test skeletons and confirm every flag in the Step 1 inventory appears in flag-coverage.yaml) to satisfy the validation-checkpoint requirement for batch file generation.

Split per-platform SDK setup (launchdarkly/unleash/flagsmith/growthbook) and the PICT pairwise detail into reference files under references/ and link to them one level deep, turning the monolithic body into a true overview.

Make the cross-skill references in the body resolve to concrete bundle paths (e.g., references/feature-flag-test-matrix-reference.md) so navigation is verifiable rather than name-only.

DimensionReasoningScore

Conciseness

Lean and table-driven — classification and strategy tables, compact grep/PICT/test code blocks — with no padding explaining concepts Claude already knows; the brief Overview prose ('the combinatorics explode') earns its place. Matches the level-3 'lean and efficient' anchor rather than the level-2 'mostly efficient but could be tightened'.

3 / 3

Actionability

Provides copy-paste-ready artifacts: concrete grep commands, a PICT input file and invocation, a YAML inventory schema, and complete TypeScript test skeletons, matching the level-3 'fully executable code/commands' anchor rather than the pseudocode level-2 anchor.

3 / 3

Workflow Clarity

The seven numbered steps give a clear sequence, but there is no explicit validation/verification checkpoint (e.g., run the generated tests, confirm the matrix covers every inventoried flag) in a workflow that batch-generates files; per the rubric this caps the score at 2 rather than the level-3 'explicit validation steps' anchor.

2 / 3

Progressive Disclosure

Well-sectioned with a References list, but no bundle files exist in references/scripts/assets and all detail lives inline in one ~230-line file; cross-skill references are signaled but content that could be split (per-platform SDK setup, PICT detail) is not offloaded, matching the level-2 'content that should be separate is inline' anchor rather than the level-3 'appropriately split' anchor.

2 / 3

Total

10

/

12

Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, third-person description that concretely enumerates the workflow steps and provides an explicit 'Use when' trigger tied to realistic scenarios. It is specific, complete, and unlikely to conflict with adjacent skills.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'inventorying flags (grep for flag-evaluation calls)', 'classifying each', 'choosing the coverage strategy', 'generating the test matrix (PICT for pairwise)', 'emitting test skeletons' — matching the level-3 anchor of several specific concrete actions.

3 / 3

Completeness

Explicitly answers both what ('builds a flag-state coverage matrix... Walks through:...') and when via an explicit 'Use when introducing flag-test coverage to a new codebase or when a flag-related incident exposes a coverage gap' clause, matching the level-3 anchor.

3 / 3

Trigger Term Quality

Includes natural terms a user would say — 'flag-test coverage', 'new codebase', 'flag-related incident exposes a coverage gap' — giving good coverage; not merely technical jargon, so it clears the level-3 bar rather than the level-2 'some relevant keywords' anchor.

3 / 3

Distinctiveness Conflict Risk

Occupies a clear niche (flag-state coverage matrix construction) with distinct triggers unlikely to fire for unrelated testing skills, matching the level-3 'clear niche with distinct triggers' anchor rather than the overlapping level-2 anchor.

3 / 3

Total

12

/

12

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Reviewed

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