[backport core/1.49] feat(first-run-tour): read tour roles off an unpinned graph - #14664
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> **Stack — 6 of 6.** Rebuilt from scratch after the review on #13725, split into short PRs. > Based on #13290 (coachmark engine); each PR stacks on the one before it. > > 1. #14140 — engine: canvas targets for the coachmark tour > 2. #14141 — Getting Started screen + entry gating > 3. #14142 — role pins + live drift guard > 4. #14143 — the tour itself + e2e walk > 5. #14144 — post-tour nudge > 6. #14145 — unpinned workflows (share / template links) ← this PR ## Summary Pins cover the eight templates the grid can show. This covers everything else — a shared workflow, or a template URL nobody curated — by reading the roles off the graph itself. Simon asked that any-workflow generality land as its own stacked PR with adversarial tests rather than riding along untested; this is that PR. ## Changes - `heuristicRoles` finds the source, prompt and sink on an unpinned graph. Pins still win where they exist; anything else falls through to here, so the heuristics are the default path rather than dead code. - Prompt selection is ranked, not matched: labels are normalised for case and separators, wiring to a `positive` input outranks a label saying so, and `negative` / `system` disqualify. A tie returns nothing rather than guessing. - `?share=` and `?template=` links offer the tour once their workflow is actually on canvas. ## Review focus The tests are adversarial by design — negative-before-positive ports, a node carrying both boxes, disagreeing sinks, bypassed nodes, ties, a 50-node graph — all built on real `LGraph` instances rather than copied templates. That was the condition for bringing heuristics back at all. --------- Co-authored-by: pythongosssss <125205205+pythongosssss@users.noreply.github.com> Co-authored-by: GitHub Action <action@github.com> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Co-authored-by: AustinMroz <austin@comfy.org> Co-authored-by: Maanil Verma <maanil@comfy.org> Co-authored-by: bymyself <cbyrne@comfy.org>
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🎭 Playwright: ✅ 1786 passed, 0 failed · 2 flaky📊 Browser Reports
🎨 Storybook: ✅ Built — View Storybook📦 Bundle Size
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Codecov Report❌ Patch coverage is
@@ Coverage Diff @@
## core/1.49 #14664 +/- ##
=============================================
+ Coverage 78.58% 78.59% +0.01%
=============================================
Files 1788 1789 +1
Lines 104332 104420 +88
Branches 31984 32881 +897
=============================================
+ Hits 81994 82074 +80
- Misses 21908 21916 +8
Partials 430 430
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Approving — final backport of the first-run tour stack (#14145), reviewed and approved on main. CI green: 49 success.
This completes the feature on 1.49. It carries heuristicRoles.ts and its test, which are the last files the release branches were missing.
Its earlier auto-backport attempts failed twice, both times because the PRs beneath it were not yet on the branch — the bot cherry-picks each PR of a stack independently. Once #14144's backport landed, this one was produced cleanly on the first try. That pattern held at all four levels, so it is a property of the workflow rather than anything about this code.
Two things worth passing to whoever owns PR Backport:
- The manual
workflow_dispatchis broken — it fails validation with "PR not found or inaccessible" because itsgh pr viewcalls lack repo context. Already tracked in open PR #13699. - The working re-trigger is the
labeledevent — remove and re-addneeds-backporton the merged PR.
Findings on this PR remain tracked as #14623 and #14625, neither blocking, and both now have fixes in flight.
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Backport of #14145 to
core/1.49Automatically created by backport workflow.