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feat(mcp): render paths query results as a sankey in the mcp ui app - #104832

Merged

trunk-io[bot] merged 92 commits into

masterfrom

posthog/mcp-paths-sankey

Oct 10, 2026

Merged

feat(mcp): render paths query results as a sankey in the mcp ui app#104832
trunk-io[bot] merged 92 commits into
masterfrom
posthog/mcp-paths-sankey

Commits on Oct 7, 2026
- feat(quill-charts): add SankeyChart and use it for MCP cluster journeys
  pauldambra
  committed
  d7604d3
- fix(quill-charts): sankey hit detection and all-zero flow handling
  pauldambra
  committed
  f05b305
- test(quill-charts): make the sankey zero-node hit test catch the regression
  pauldambra
  committed
  5068202
- refactor(quill-charts): share the sankey value formatter
  pauldambra
  committed
  9b9f747
- fix(quill-charts): dim inactive sankey links against their resting color
  pauldambra
  committed
  f2666eb
- fix(mcp_analytics): fix journey sankey sizing and tooltip shares
  pauldambra
  committed
  51f28d2
- fix(mcp_analytics): trim journey tooltip comment to one line
  pauldambra
  committed
  daaa2cf
- fix(quill-charts): align sankey nodes to the right by distance from the sink
  pauldambra
  committed
  0a26879
- feat(quill-charts): sankey tooltip placement and touch taps
  pauldambra
  committed
  36b9ea3
- fix(quill-charts): fire sankey clicks when tooltips are disabled
  pauldambra
  committed
  e32c1dc
- refactor(mcp_analytics): extract journey tooltip
  pauldambra
  committed
  48bcbc6
- fix(quill-charts): clear stale Sankey hover and separate journey nodes
  pauldambra
  committed
  f08e6ba
- perf(quill-charts): skip distant sankey hit checks
  pauldambra
  committed
  8ccbe48
- fix(quill-charts): harden sankey layout inputs
  pauldambra
  committed
  6402cbb
- fix(quill-charts): reset sankey errors on data changes
  pauldambra
  committed
  181c149
- fix(quill-charts): match sankey hit testing to ribbons
  pauldambra
  committed
  0319659
- fix(quill-charts): match the missing sankey node error in its test
  pauldambra
  committed
  93e271e
- fix(quill-charts): brace the duplicate sankey node id guard
  
  pauldambra
  and
  claude
  committed
  9ccc49b
- fix(quill-charts): sample sankey ribbons densely enough to hit thin ones
  
  pauldambra
  and
  claude
  committed
  da584b6
- fix(quill-charts): address sankey review feedback
  
  pauldambra
  and
  claude
  committed
  10c4261
- fix(quill-charts): address second sankey review round
  
  pauldambra
  and
  claude
  committed
  0def4f7
- fix(quill-charts): address sankey triage round
  
  pauldambra
  and
  claude
  committed
  ac2221f
- refactor(quill-charts): apply simplify pass
  
  pauldambra
  and
  claude
  committed
  f2f95a2
- fix(quill-charts): cap sankey node width by column count, not node count
  
  pauldambra
  and
  claude
  committed
  ef9fa52
- fix(quill-charts): address sankey review round
  
  pauldambra
  and
  claude
  committed
  8aee48a
- fix(quill-charts): clear sankey hover on interactive overlays
  
  pauldambra
  and
  claude
  committed
  6415423
- refactor: apply simplify pass
  
  pauldambra
  and
  claude
  committed
  5e5acb3
- chore(quill-charts): cover transparent sankey nodes in the hover pass
  
  pauldambra
  and
  claude
  committed
  1954930
- refactor(quill-charts): share tap tracking between chart interaction hooks
  
  pauldambra
  and
  claude
  committed
  0c628a0
- fix(quill-charts): skip zero-valued sankey links, fall back on an empty palette
  
  pauldambra
  and
  claude
  committed
  68d7676
- chore(quill-charts): cover zero-valued ribbons in the sankey hover pass
  
  pauldambra
  and
  claude
  committed
  84ee30f
- chore(visual): update storybook baselines
  
  posthog[bot]
  and
  pauldambra
  authored
  a325de2
- feat(paths): render user paths with the quill SankeyChart behind a flag
  pauldambra
  committed
  3b95dc7
- fix(quill-charts): reset sankey hover dedup key on layout change
  pauldambra
  committed
  591b64b
- refactor(paths): memoize chart width and dropoff totals
  pauldambra
  committed
  d18ea89
- fix(quill-charts): keep sankey hover reports and overlay in step with the host
  
  pauldambra
  and
  claude
  committed
  d0441ea
- fix(quill-charts): keep emphasized sankey links at least as opaque as at rest
  
  pauldambra
  and
  claude
  committed
  59fd97c
- fix(paths): lazy-load the sankey paths chart and address review
  
  pauldambra
  and
  claude
  committed
  6290e29
- fix(quill-charts): call emphasisForHit in the sankey draw test
  
  pauldambra
  and
  claude
  committed
  2e62824
- fix(paths): mark the node card popover as a chart overlay
  
  pauldambra
  and
  claude
  committed
  ba31e1f
- perf(paths): only check nearby cards when placing a hover-only card
  
  pauldambra
  and
  claude
  committed
  698a1cf
- fix(quill-charts): restore the useRef import and emphasisForHit in sankey tests
  
  pauldambra
  and
  claude
  committed
  a24bb44
- fix(quill-charts): stop emphasized sankey ribbons compounding past their target opacity
  
  pauldambra
  and
  claude
  committed
  39f6d32
- fix(paths): stop drop-off blocks hovering the ribbons beneath them
  
  pauldambra
  and
  claude
  committed
  0ea40e8
- refactor(quill-charts): drop the dead overlay check in sankey hit-testing
  
  pauldambra
  and
  claude
  committed
  832f757
- chore(visual): update storybook baselines
  
  posthog[bot]
  and
  pauldambra
  committed
  7c2ce0f
- feat(mcp): render paths query results as a Sankey in the MCP UI app
  pauldambra
  committed
  ddd9708
- fix(quill-charts): guard sankey nodeColumn pins against NaN and document monotonicity
  pauldambra
  committed
  278208f
- fix(quill-charts): guard sankey collision resolution against empty pinned columns
  pauldambra
  committed
  790f0d4
- fix(mcp): keep paths labels distinct, cap the drawn edges, and list them for screen readers
  pauldambra
  committed
  975a01e
- fix(mcp): share paths transforms with the insight and address review
  
  pauldambra
  and
  claude
  committed
  976ee8e
- fix(mcp): use the default sankey tooltip in the paths app
  
  pauldambra
  and
  claude
  committed
  4d3ee72
- fix(quill-charts): keep sankey labels across the last gap from overlapping
  
  pauldambra
  and
  claude
  committed
  7dc99fb
- fix(mcp): bound paths steps to the chart and count path starts honestly
  
  pauldambra
  and
  claude
  committed
  a7f56a4
- fix(quill-charts): count pinned columns when capping sankey node width
  
  pauldambra
  and
  claude
  committed
  4f1be5f
- fix(mcp): cap sankey scroll width and node width at the laid-out column count
  
  pauldambra
  and
  claude
  committed
  cb03a25
- fix(quill-charts): keep sankey headers on the engine's columns and event labels whole
  
  pauldambra
  and
  claude
  committed
  9816cf2
- refactor(product-analytics): count path origins with the shared helper
  
  pauldambra
  and
  claude
  committed
  a7ce1e5
- fix(mcp): count paths summary steps on the full result
  
  pauldambra
  and
  claude
  committed
  1df0fb0
- fix(quill-charts): show sankey names in full on hover and in narrow charts
  
  pauldambra
  and
  claude
  committed
  4297e71
- fix(quill-charts): size sankey label room from the last column and keep full names
  
  pauldambra
  and
  claude
  committed
  5a6e9b4
- fix(quill-charts): reject bad sankey pins before the chart has a size
  
  pauldambra
  and
  claude
  committed
  8f332c8
- fix(quill-charts): keep sankey header room when the top margin is overridden
  
  pauldambra
  and
  claude
  committed
  dac8040
- chore(mcp-analytics): snapshot the cluster journey chart in storybook
  
  pauldambra
  and
  claude
  committed
  6733477
- fix(quill-charts): keep a sankey plot when outside labels outgrow narrow charts
  
  pauldambra
  and
  claude
  committed
  ef8f744
- fix(quill-charts): report the sankey node area as the plot to chart overlays
  
  pauldambra
  and
  claude
  committed
  d7788d9
Commits on Oct 8, 2026
Commits on Oct 9, 2026
- Merge remote-tracking branch 'origin/master' into pastori/104591-t1790293818519-40
  pauldambra
  committed
  77761bd
- Merge origin/master into posthog/quill-charts-sankey
  pauldambra
  committed
  7225a88
- Merge posthog/paths-sankey-chart into posthog/mcp-paths-sankey
  pauldambra
  committed
  1557e2e
- Merge posthog/quill-charts-sankey into posthog/paths-sankey-chart
  pauldambra
  committed
  efe6587
- test(mcp): cover the paths visualizer's truncation, step count and scroll width
  
  pauldambra
  and
  claude
  committed
  68ccfcf
- chore(quill-charts): document the sankey accessor methods
  
  pauldambra
  and
  claude
  committed
  1be81e4
- fix(quill-charts): count nodes fed only by zero links as sankey sources
  
  pauldambra
  and
  claude
  committed
  e93d4e7
- Merge posthog/quill-charts-sankey into posthog/paths-sankey-chart
  pauldambra
  committed
  7f9e385
- Merge posthog/paths-sankey-chart into posthog/mcp-paths-sankey
  pauldambra
  committed
  19f2112
- fix(quill-charts): keep sankey emphasis linear and alpha-safe
  
  pauldambra
  and
  claude
  committed
  0e623e3
- fix(paths): report errors caught by the sankey chart boundary
  
  pauldambra
  and
  claude
  committed
  6086604
- Merge posthog/paths-sankey-chart into posthog/mcp-paths-sankey
  pauldambra
  committed
  3e47b61
- fix(quill-charts): keep the sankey hover when the theme rereads an equal palette
  
  pauldambra
  and
  claude
  committed
  e65cfa9
- Merge posthog/quill-charts-sankey into posthog/paths-sankey-chart
  pauldambra
  committed
  8013175
- Merge posthog/paths-sankey-chart into posthog/mcp-paths-sankey
  pauldambra
  committed
  ecd5011
Commits on Oct 10, 2026
- fix(mcp): keep long paths under their step headers and qualify path starts
  
  pauldambra
  and
  claude
  committed
  1787dc1
- chore(visual): update storybook baselines
  
  posthog[bot]
  and
  pauldambra
  authored
  1326358
- chore(visual): update storybook baselines
  
  posthog[bot]
  and
  pauldambra
  authored
  6071cb0
- Merge posthog/quill-charts-sankey into posthog/paths-sankey-chart
  pauldambra
  committed
  a8c9e2f
- Merge posthog/paths-sankey-chart into posthog/mcp-paths-sankey
  pauldambra
  committed
  4adc7f9
- chore(mcp): move sankey pinning rules into the docs and drop the vitest alias
  
  pauldambra
  and
  claude
  committed
  32c9781
- chore(visual): update storybook baselines
  
  posthog[bot]
  and
  pauldambra
  authored
  93450e8
- Merge origin/master into posthog/mcp-paths-sankey
  pauldambra
  committed
  5d858d5

Commits

Commits on Oct 7, 2026

Commits on Oct 8, 2026

Commits on Oct 9, 2026

Commits on Oct 10, 2026