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launchdarkly-metric-create

Create a LaunchDarkly metric that measures what matters for an experiment or rollout. Use when the user wants to create a metric, track an event, measure page views, button clicks, conversion, latency, error rate, or any custom numeric or binary outcome. Instruments the event first when needed (including SDK setup and .env), then creates and verifies the metric.

68

Quality

81%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Quality

Content

62%

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

This skill excels at actionability and workflow clarity — it provides concrete MCP tool calls, executable code examples, clear decision trees, and a well-sequenced workflow with explicit validation checkpoints and a confirmation gate. However, it is significantly over-long, explaining many concepts Claude already understands (SDK installation, .env files, CSS selectors) and duplicating information (measure type tables appear twice). The monolithic structure would benefit from splitting instrumentation details and reference tables into separate files.

Suggestions

Cut 40-50% of content by removing explanations of concepts Claude already knows: how .env files work, what CSS selectors are, how to install npm packages, basic SDK initialization patterns. Focus on LaunchDarkly-specific details only.

Extract the instrumentation sub-workflow (Step 2b) into a separate INSTRUMENTATION.md file referenced from the main skill, reducing the main file's cognitive load and improving progressive disclosure.

Remove the duplicated measure type information — the table appears both in Step 4 and in the 'Measure Type Reference' section. Keep one canonical reference.

Condense the 'Two Different Projects' section to 2-3 sentences with the key rule: 'Never assume the local codebase name is a LaunchDarkly project key. If ambiguous, ask explicitly.'

DimensionReasoningScore

Conciseness

The skill is extremely verbose at ~350+ lines. It over-explains concepts Claude already knows (what pageview/click/custom metrics are, how .env files work, how to install npm packages, how SDK initialization works). Many sections could be condensed by 50-70% without losing actionable information. The 'Two Different Projects' section, while useful, is excessively detailed for something Claude can infer. The measure type reference table is duplicated in both Step 4 and a separate section.

1 / 3

Actionability

The skill provides highly concrete, executable guidance throughout: specific MCP tool calls with exact parameter names, real code examples for track() calls and SDK initialization, specific env variable naming conventions per framework, CSS selector examples, and exact API field mappings. The decision tables and templates give Claude clear, copy-paste-ready patterns for every scenario.

3 / 3

Workflow Clarity

The workflow is exceptionally well-sequenced with 6 clearly numbered steps, explicit validation checkpoints (verify events flowing before creating metric, verify metric after creation), feedback loops (re-check list-metric-events after instrumentation), and a hard STOP gate at Step 4 requiring user confirmation before proceeding. The sub-workflow (Step 2b) is clearly delineated with its own numbered steps.

3 / 3

Progressive Disclosure

The content is entirely monolithic — everything is in a single file with no references to supporting documents. Given the length and complexity (SDK setup, instrumentation, metric creation, verification), the instrumentation sub-workflow (Step 2b) and the measure type reference could reasonably be split into separate files. However, the internal structure with clear headers and numbered steps provides decent navigability within the single file.

2 / 3

Total

9

/

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.

This is an excellent skill description that clearly defines its scope (LaunchDarkly metric creation), provides comprehensive trigger terms covering various metric types users might request, and includes an explicit 'Use when' clause. The description also communicates the workflow (instrument first, then create and verify), giving Claude clear understanding of the skill's end-to-end capability.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: create a metric, track an event, measure page views, button clicks, conversion, latency, error rate, custom numeric/binary outcomes, instrument events, SDK setup, .env configuration, and verify the metric.

3 / 3

Completeness

Clearly answers both 'what' (create a LaunchDarkly metric, instrument events, SDK setup, verify the metric) and 'when' (explicit 'Use when' clause listing specific trigger scenarios like creating metrics, tracking events, measuring various outcomes).

3 / 3

Trigger Term Quality

Excellent coverage of natural terms users would say: 'create a metric', 'track an event', 'page views', 'button clicks', 'conversion', 'latency', 'error rate', 'custom numeric', 'binary outcome', 'LaunchDarkly', 'experiment', 'rollout'. These are all terms a user would naturally use.

3 / 3

Distinctiveness Conflict Risk

Highly distinctive due to the specific LaunchDarkly domain, metric creation focus, and the combination of instrumentation + metric creation workflow. Unlikely to conflict with other skills given the clear niche.

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.

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
launchdarkly/ai-tooling
Reviewed

Table of Contents

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