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quest: drop the route inductive invariant - #8704

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quest-complete/drop-route-inductive
Nov 14, 2026
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quest-complete/drop-route-inductive

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Deletes quest/m1/route-inductive.md, abandoned.

Summary

The quest wanted an inductive invariant for the route model (RouteHandoff.tla). Nothing can check one:

  • Apalache reads the model but cannot step even one transition (#8564, now closed).
  • No Rust TLA+ checker agrees with TLC well enough to use (#8600, #8669).
  • The maintainer wants no more JVM model checking here.

So TLC's bounded runs stay what keeps the route model honest, as they do today.

The mentions in route-trace-validation.md, route-exhaustive-sim.md, and the cluster-routes epic's item 28 lose their link. Item 28 had rejected "deleting it" on 2026-11-12; it now records the reversal.

Decisions

Impact

None: quest files only.

Review

Skipped on head 64ea43f: a quest deletion with three unlinked mentions; nothing builds or runs it.

🤖 Generated with Claude Code

(Written by Claude Opus 5.5)

No checker can step the route model: Apalache stalls on the first
transition (#8564), no Rust TLA+ checker qualifies (#8600, #8669), and
the maintainer wants no more JVM model checking here.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Reviewing files that changed from the base of the PR and between a026b71 and 64ea43f.

Files selected for processing: 4

  • quest/m1/route-inductive.md
  • quest/m1/route-trace-validation.md
  • quest/m2/cluster-routes/README.md
  • quest/m2/cluster-routes/route-exhaustive-sim.md
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@kixelated
kixelated enabled auto-merge November 14, 2026 03:29

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✅ No new issues found.

Reviewed changes: the full diff of a quest-file-only deletion.

  • Delete quest/m1/route-inductive.md: the abandoned quest is removed.
  • Unlink mentions: route-trace-validation.md, route-exhaustive-sim.md, and item 28 of the cluster-routes README no longer link to the deleted file. Item 28 records the reversal. A repo-wide grep finds no remaining route-inductive references.

Pullfrog  | View workflow run | Using claude-sonnet-5-5 | 𝕏

@kixelated
kixelated added this pull request to the merge queue Nov 14, 2026
Merged via the queue into main with commit 31b215b Nov 14, 2026
5 checks passed
@kixelated
kixelated deleted the quest-complete/drop-route-inductive branch November 14, 2026 03:36
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