Skill

probe-discovery

Find Mozilla telemetry probes and Glean metrics. Use when user asks about: Firefox metrics, Glean probes, telemetry data, accessibility probes, search metrics, or any Mozilla product instrumentation.

Install

npx claudepluginhub akkomar/mozdata-claude-plugin --plugin mozdata

Tool Access

This skill is limited to using the following tools:

WebFetchReadmcp__plugin_mozdata_glean-dictionary__list_appsmcp__plugin_mozdata_glean-dictionary__get_appmcp__plugin_mozdata_glean-dictionary__search_metricsmcp__plugin_mozdata_glean-dictionary__get_metricmcp__plugin_mozdata_glean-dictionary__get_pingmcp__plugin_mozdata_metric-hub__search_metricsmcp__plugin_mozdata_metric-hub__get_metricmcp__plugin_mozdata_metric-hub__list_platforms

Preview

For metric/probe discovery and naming conventions, see [metrics.md](../../knowledge/metrics.md).

SKILL.md

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Last CommitApr 16, 2026

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Mozilla Probe Discovery

For metric/probe discovery and naming conventions, see metrics.md. For data platform architecture, see architecture.md. For external sources (Metric Hub, Confluence, app discovery), see external-sources.md.

Workflow

Clarify the product — ask which Firefox/Mozilla product if not specified

Search using Glean Dictionary MCP (preferred):

mcp__plugin_mozdata_glean-dictionary__search_metrics with app_name (snake_case), query, type, include_expired
mcp__plugin_mozdata_glean-dictionary__get_metric for full metric definitions
mcp__plugin_mozdata_glean-dictionary__get_app for app overview (metrics count, pings, tags)
mcp__plugin_mozdata_glean-dictionary__get_ping for ping details and contained metrics
mcp__plugin_mozdata_glean-dictionary__list_apps to discover available apps

Fallback: ProbeInfo API — only use WebFetch to ProbeInfo API when data is not available via Glean Dictionary MCP. Use kebab-case for product name in URL (e.g., firefox-desktop).

Provide to user:

Metric name, type, description, and which pings contain it
Glean Dictionary link for visual exploration
BigQuery table and column path
Example query if requested

Mozilla Probe Discovery

Workflow

Clarify the product — ask which Firefox/Mozilla product if not specified
Search using Glean Dictionary MCP (preferred):
- mcp__plugin_mozdata_glean-dictionary__search_metrics with app_name (snake_case), query, type, include_expired
- mcp__plugin_mozdata_glean-dictionary__get_metric for full metric definitions
- mcp__plugin_mozdata_glean-dictionary__get_app for app overview (metrics count, pings, tags)
- mcp__plugin_mozdata_glean-dictionary__get_ping for ping details and contained metrics
- mcp__plugin_mozdata_glean-dictionary__list_apps to discover available apps
Fallback: ProbeInfo API — only use WebFetch to ProbeInfo API when data is not available via Glean Dictionary MCP. Use kebab-case for product name in URL (e.g., firefox-desktop).
Provide to user:
- Metric name, type, description, and which pings contain it
- Glean Dictionary link for visual exploration
- BigQuery table and column path
- Example query if requested