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feat: full attribute filters on metrics widgets, create_dashboard where/unit/series count - #1388
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…rd where/unit/series count Metrics widgets could only filter a datapoint label by equality, and the executor read just the first attribute filter, ignoring its mode and negation. So a per-state metric like system.cpu.utilization could not be scoped with attr.state != "idle". - Metrics CH queries take the full attributeFilters list (equals, !=, contains, exists, in, numeric), built by the shared buildAttrFilterCondition. A lone span.kind equality still uses the hourly span-metrics rollup. - The query builder lowers every attr.* operator for metrics (cap 5) and accepts OR groups, which are the IN form. - create_dashboard simple specs gain `where`, enumerate `unit` from the widget unit catalog, and accept resource.<key> group_by for metrics. - Validation entries report seriesCount so a group_by split is visible.
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📝 Walkthrough
Merge Risk: 🟡 Moderate · up to Metric filters can include datapoints that lack a valid numeric label, and a quoted service name can change a dashboard filter. Resolve or explicitly accept these risks before merging. Pre-merge checks |
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| Check name | Status | Explanation | Resolution |
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| Docstring Coverage |  |
Docstring coverage is 52.63% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 19 functions across 14 files. (1 skipped:… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title clearly identifies the main changes: full metrics attribute filters and create_dashboard support for where, unit, and series count. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
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Docstring coverage is 52.63% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 19 functions across 14 files. (1 skipped: 1 unsupported.)
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Maple review🟢 Confidence 9/10 · safe to merge Metrics widgets can now filter datapoint labels by any operator, negation and OR groups, and
What was checked
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… options - seriesCount counted a breakdown as 1 series (its groups are rows) and summed chart queries, double-counting formula operands. It now takes the largest query, using rowCount for breakdowns. - Remove attributeKey/attributeValue from the metrics query opts; only tests still used them. attributeFilters is the single way to filter datapoint labels, which also simplifies the span-metrics rollup check. - create_dashboard computes the extra where clause once; its tests read the query draft instead of matching serialized JSON.
…-attr-filters # Conflicts: # apps/ai/src/mcp/tools/create-dashboard.ts
Maple review🟢 Confidence 9/10 · safe to merge Adds full attribute filtering (every operator, OR groups) to metrics widgets, a
What was checked
Observability coverage: 1 of 1 changes observable
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Maple review🟢 Confidence 8/10 · likely safe to merge Metrics queries now lower the full
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Actionable comments posted: 2
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Inline comments:
Review comments at @apps/ai/src/mcp/tools/create-dashboard.ts:
- Around line 147-149: Update the `where` construction to format
`spec.service_name` with the shared `quoteWhereValue` helper instead of
interpolating it inside double quotes, preventing the value from injecting
additional clauses.
Review comments at @packages/query-engine/src/ch/queries/metrics.ts:
- Line 43: Update buildAttrFilterCondition in traces-shared.ts so numeric
predicates exclude labels that cannot be parsed as numbers instead of coercing
them to zero; preserve filtering behavior for valid numeric labels.
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📒 Files selected for processing (12)
apps/ai/src/mcp/lib/dashboard-schema-doc.tsapps/ai/src/mcp/lib/inspect-widget-summary.test.tsapps/ai/src/mcp/lib/inspect-widget.tsapps/ai/src/mcp/tools/create-dashboard.test.tsapps/ai/src/mcp/tools/create-dashboard.tspackages/domain/src/mcp-outputs/dashboards.tspackages/query-engine/src/ch/queries/metrics.test.tspackages/query-engine/src/ch/queries/metrics.tspackages/query-engine/src/query-builder/model.test.tspackages/query-engine/src/query-builder/model.tspackages/query-engine/src/runtime/query-engine.tspackages/query-engine/src/traces-shared.ts
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Drop the unused TIME_PRESETS, bucketSecondsFor and OverviewGrain exports, and register the tool playground vitest config as an apps/ai knip entry.
Maple review🟢 Confidence 9/10 · safe to merge This head drops three unused infra/query-engine exports and registers the apps/ai tool-playground config and playground specs as knip entries; the substantive metrics attribute-filter work was reviewed at an earlier head. Safe to merge. What was checked
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…in numeric filters A service_name holding a double quote could open a second where clause; it now goes through quoteWhereValue. Numeric attribute filters also require the key to be present, since a missing key read as 0 and matched lt/lte filters.
Maple review🟢 Confidence 9/10 · safe to merge Adds full
What was checked
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1 participant
Problem
You could not build a correct "CPU utilization per host" chart.
system.cpu.utilizationis reported perstate(idle, user, system, ...), so averaging it per host gives roughly 1/number-of-states. Scoping byattr.statewas not possible:attr.state != "idle".runtime/query-engine.ts) read onlyattributeFilters[0]and passed its key and value as a plain equality, ignoringmodeandnegated. So a negated filter arriving through any other path was silently turned into its opposite.create_dashboardsimple widget specs had no filter field and did not list theunitvalues.Changes
Query engine
attributeFilterslist and build each predicate with the sharedbuildAttrFilterConditionon theAttributesmap: equals,!=, contains, exists,in, numeric comparisons, and OR alternatives.attributeKey/attributeValueoptions on those queries are removed; only tests still used them, soattributeFiltersis now the one way to filter metric labels.span.kind = Xfilter still uses the hourly span-metrics rollup. Any other datapoint filter falls back to the raw table.attr.*operator for metrics (cap of 5, the same as traces and logs) and now accepts(a OR b)groups for metrics. An OR group is theIN/ multi-value form; the where-clause grammar has noinkeyword, and adding one was out of scope.MCP
create_dashboardwhere, a whereClause AND-ed withservice_name. It is rejected onlistwidgets rather than dropped. Unsupported clauses are still caught by the existing pre-persist builder-warning gate.unitis now a closed enum built fromWIDGET_UNIT_TOKENSand listed in the parameter description, with the percent (0-1) vs percent_100 (0-100) rule.group_by: "resource.host.name") landed separately in feat(ai): MCP tools for the Infrastructure pages (list_infra, inspect_infra) #1387; this PR adds a test for it.Validation
WidgetInspectionEntrygainsseriesCount: the number of series in the widget's largest successful query (for a table, its number of groups). It is shown in the rendered validation aslooks_healthy, 4 series, so you can confirm agroup_bysplit worked. Taking the largest query rather than the sum keeps a formula and the hidden queries it is built from from being counted several times.Docs
describe_dashboard_schemaqueries section says that OR groups apply to metrics, thatattr.*on metrics takes any operator, and explains the per-state CPU pitfall.Not covered
avg+attr.state = "idle"gives the idle fraction per host. Turning that into busy (1 minus idle) needs a constant in a formula, which is a separate change.in/not inkeyword in the where-clause grammar. The filter schema and SQL already supportmode: "in"; only the text grammar lacks it.Testing
packages/query-engine:metrics.test.ts(negated andINSQL, span.kind rollup kept, negated filter falls back to raw) andmodel.test.ts(negated attr, multiple filters, OR groups, mixed-group rejection). 308 tests pass, including the benchmark SQL catalog and runtime tests.apps/ai:create-dashboard.test.ts(where AND-ing, list rejection, resource group_by),inspect-widget-summary.test.ts(seriesCount for charts with formulas and for tables),registry.contract.test.ts, and the schema-doc and docs-drift tests pass.@maple/query-engine,@maple/domain,@maple/cliand@maple/local-ui(the other callers of the metrics queries). oxlint is clean on all changed files.@maple/aireports only the existing unbuilt-lib/module errors, none in changed files.Need help on this PR? Tag
@codesmith-botwith what you need. Autofix is disabled.Summary by CodeRabbit
New Features
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