[apiology]

Claude: This PR was written by Claude Code on behalf of @apiology.

Problem:

Open PRs are tested only one at a time:

50 castwide/solargraph PRs + 4 apiology/solargraph PRs, each tested only against its own base

A conflict between two of them would surface only after both merge.

Solution:

Merges every PR below into one branch so CI runs on the combination; freshness notes, reverts and re-merges are tracked in the timeline comments.

castwide/solargraph PRs included

1. Infer element types for array literals castwide/solargraph#1223 — Restore tuple/literal element inference and track reassignment (Specious inference in flow-sensitive typing castwide/solargraph#1196)
2. Spec performance fixes castwide/solargraph#1237 — Spec performance fixes
3. Add intersection (A & B) types, including Hash-based record support castwide/solargraph#1231 — Add intersection (A & B), union (|), and grouping ([...]) type syntax
4. Fix raise/fail nil guards, root-scoped is_a?, case/when, ||=, and namespace-scope narrowing in flow-sensitive typing castwide/solargraph#1259 — Fix raise/fail nil guards, root-scoped is_a?, case/when, ||=, and namespace-scope narrowing in flow-sensitive typing
5. Add specs for reverted fixes and uncovered branches castwide/solargraph#1262 — Backfill regression tests for previously-reverted/regressed behavior
6. Stop one unparseable type from aborting the whole typecheck run castwide/solargraph#1263 — Fix Hash<K,V> tag round-trip crash and TypeChecker call-inference error boundary
7. Narrow repeated attr_reader and other pure calls after a nil guard castwide/solargraph#1258 — Narrow repeated calls to the same attr_reader-style accessor
8. [regression fix] Structurally verify RBS interface-typed expectations castwide/solargraph#1266 — Structurally verify RBS interface-typed expectations
9. Fix false positive: Struct.new(keyword_init: true) members are optional castwide/solargraph#1269 — Fix false positive: Struct.new(keyword_init: true) members are optional
10. Stop dropping union members that differ only by type parameter castwide/solargraph#1273 — Fix order-dependent generic resolution for same-class union receivers
11. Keep the generic return type when a method takes a block castwide/solargraph#1274 — Fix @Generic return type lost when method also declares a block param
12. Remove every unioned type flow-sensitive-typing rules out castwide/solargraph#1277 — Give RBS bottom type its own tag instead of collapsing into undefined
13. Stop reporting a duck type's own method as unresolved castwide/solargraph#1280 — Resolve calls to a duck type param's own declared method
14. Improved RBS type alias support castwide/solargraph#1281 — Expand RBS type aliases before conformance checks
15. ensure clause breaks return type inference castwide/solargraph#1285 — Fix return type inference for methods with an ensure clause
16. [regression fix] Fix and re-enable strong-level typechecking in CI castwide/solargraph#1240 — Fix and re-enable strong-level typechecking in CI
17. [regression fix] Fix generic binding and block signature merging through a @!parse stub castwide/solargraph#1288 — Fix generic binding through a cross-file @!parse stub
18. Match trailing keyword arguments to keyword/kwrest parameters, not by position castwide/solargraph#1292 — Match trailing keyword arguments to keyword/kwrest parameters, not by position
19. Narrow via literal-equality, kind_of?, instance_of? and instance_variable_defined? in flow-sensitive typing castwide/solargraph#1297 — Narrow via literal-equality, kind_of?, instance_of? and instance_variable_defined? in flow-sensitive typing
20. Resolve generic type variables against union @param types castwide/solargraph#1299 — Resolve generic type variables against union @PARAM types
21. Apply @!override to constants instead of crashing the typechecker castwide/solargraph#1305 — Apply @!override to constants instead of crashing the typechecker
22. Index X = Class.new(Super) constant assignments as classes castwide/solargraph#1306 — Index X = Class.new(Super) constant assignments as classes
23. Strip nil from or-expression fallbacks in conditional branch values castwide/solargraph#1309 — Strip nil from or-expression fallbacks in conditional branch values
24. Rebind self in Class.new blocks; nested blocks inherit rebound binders castwide/solargraph#1310 — Class.new block-self yieldreceiver + nested binder inheritance
25. Map Forwardable delegations to method pins castwide/solargraph#1311 — Map Forwardable delegations to method pins
26. pin CLI: resolve paths through method lookup, unsilence messages, fix bare arrows castwide/solargraph#1312 — pin CLI: resolve paths through method lookup, unsilence messages, fix bare arrows
27. Resolve a self return type per union member castwide/solargraph#1314 — Resolve a self return type per union member
28. [regression fix] Make rbs validate a blocking CI check again castwide/solargraph#1317 — Make rbs validate a blocking CI check again
29. [regression fix] Make RuboCop block CI again, and auto-prune .rubocop_todo.yml castwide/solargraph#1260 — Make the rubocop CI job blocking again, automate rubocop-todo
30. [regression fix] Let solargraph-rails spec failures fail CI again castwide/solargraph#1321 — Make the solargraph-rails plugin specs a blocking CI check again
31. Narrow types inside an until loop body castwide/solargraph#1322 — Narrow types inside an until loop body
32. Support blocks with implicit parameters (_1, it) and backtick commands castwide/solargraph#1320 — Support blocks with implicit parameters (_1, it) and backtick commands
33. Keep a block's reassignment of an outer local visible after the block castwide/solargraph#1319 — Keep a block's reassignment of an outer local visible after the block
34. Apply implicitly-returns-nil per signature/overload, rather than per method castwide/solargraph#1316 — Apply implicitly-returns-nil per signature/overload, rather than per method
35. Narrow is_a? checks joined by || to their union type castwide/solargraph#1324 — Narrow is_a? checks joined by || to their union type
36. Resolve instance variable type when assigned only in an ancestor class's method castwide/solargraph#1345 — Resolve instance variable type when assigned only in an ancestor class's method
37. Fix splat target in multiple assignment losing its element type castwide/solargraph#1325 — Fix splat target in multiple assignment losing its element type
38. Fix unresolved method-level generic block parameters castwide/solargraph#1326 — Fix unresolved method-level generic block parameters
39. Synthesize a Struct.new constructor pin for gem-sourced constants castwide/solargraph#1328 — Synthesize a Struct.new constructor pin for gem-sourced constants
40. [regression fix] Show undercover failures as a failed check without blocking merge castwide/solargraph#1047 — Set continue_on_error at job level for undercover and rubocop todo
41. Make RBS first-class pin data source; apply every @!override overload castwide/solargraph#1104 — Make RBS first-class pin data source; apply every @!override overload
42. Degrade an unparseable Struct attribute tag instead of raising castwide/solargraph#1323 — Degrade an unparseable Struct attribute tag instead of raising
43. Regenerate .rubocop_todo.yml and fix newly-flagged offenses castwide/solargraph#1353 — Regenerate .rubocop_todo.yml and fix newly-flagged offenses
44. Infer precise Hash{K => V} types from hash literals castwide/solargraph#1352 — Infer precise Hash{K => V} types from hash literals
45. Fix TypeChecker::Rules#level always returning nil castwide/solargraph#1333 — Fix TypeChecker::Rules#level always returning nil
46. Fix a nil crash and missing nil checks across the parser, type checker and RBS handling castwide/solargraph#1245 — Fix nil-safety, return-value, and dead-code bugs across parser/type-checker/RBS layers
47. Fix generic arguments lost through inherited methods castwide/solargraph#1329 — Leave an unbound namespace generic unresolved instead of erasing to untyped
48. Kernel#send doesn't work with splat blocks castwide/solargraph#1359 — Kernel#send doesn't work with splat blocks
49. Narrow locals and ivars after reassignment in conditions, blocks and rescues castwide/solargraph#1338 — Narrow locals after definite reassignment and in-condition assignment
50. Fix super inferring the union of every ancestor's return type castwide/solargraph#1364 — Fix super inferring the union of every ancestor's return type

apiology/solargraph PRs included (no open castwide/solargraph PR)

• [DO NOT MERGE] Refresh gem types when rbs_collection.yaml changes #97 — Rewrite PinCache as an instance-based engine, with wiring and CLI update
• Narrow bare, implicit-self attr_reader-style accessor calls #53 — Narrow bare, implicit-self attr_reader-style accessor calls
• Type destructured block parameters and union-keyed hash pairs #60 — Destructure block parameter groups and keep union-typed tuple elements in one position
• Check keyword arguments passed through a ** splat #63 — Check keyword arguments passed through a ** splat

Heads-up: included commits that will never appear on master

Closed, unmerged PRs whose commits are in this branch; any successor PR rewrote the commits rather than carrying them.

• Allow arguments to satisfy RBS interface-typed parameters castwide/solargraph#1228 — Allow arguments to satisfy RBS interface-typed parameters (superseded by [regression fix] Structurally verify RBS interface-typed expectations castwide/solargraph#1266 with rewritten commits)
• Prefer a block signature that declares parameters #61 — Prefer a block signature that declares parameters (root cause fixed differently in [regression fix] Fix generic binding and block signature merging through a @!parse stub castwide/solargraph#1288)
• Fix flow-sensitive narrowing after raise, make ComplexType#exclude conformance-based #66 — Fix flow-sensitive narrowing after raise, make ComplexType#exclude conformance-based (superseded by Remove every unioned type flow-sensitive-typing rules out castwide/solargraph#1277 with rewritten commits)
• Fix Pin::Base#== missing presence, add regression coverage castwide/solargraph#1293 — Fix Pin::Base#== missing presence
• Fix NoMethodError in UniqueType#to_rbs for empty generic params #43 — Fix NoMethodError in UniqueType#to_rbs for empty generic params

[apiology]

Closing/reopening to force-retrigger CI ��� the push to head 73d3333 never dispatched the RSpec/Typecheck/Plugin/Linting workflows (no run object exists for this SHA), while CodeQL did fire. This looks like a missed webhook delivery, not a code issue.

��� Claude

[apiology]

Claude:

Freshness snapshot, moved out of the body so it can be recalculated from the comment stream. Current branch tip: 1637cb1 (the #60 merge, 2026-09-16).

Merged at some point but not currently in the branch:

• Fix ENV[] typechecking castwide/solargraph#1278 (ENV[] typechecking) — reverted 2026-09-01 (a42b900), not re-applied
• Clear strong-typecheck errors after is_ast_node? guards #117 (narrow is_a? behind wrapper methods and indexed chains) — merged and pushed 2026-09-16, then the branch was rewound past it
• Clear strong-typecheck nil errors on Range.from_node calls #113 (Range.from_node!) — merged and pushed 2026-09-16, rewound with the above
• Clear strong-typecheck errors on op-assign node children #121 (fetch on always-present AST node children) — merged locally 2026-09-16, rewound before/with the above
• integration-only commit 7b65182 (Intersection#transform conjunct renaming + unparseable-tag degrade) — both halves reverted 2026-09-01 (0e97647, 84b940d)

Partially in the branch:

• integration-only commit 4d00c4b (respond_to? guard narrowing) — the flow_sensitive_typing.rb half was reverted 2026-09-01 (77dc333); the ComplexType#narrow_with union-arm selection half remains, which is what the body's entry now describes

[apiology]

Claude:

Correction to the freshness snapshot above: nothing from 4d00c4b survives at the current tip. The flow_sensitive_typing.rb half (process_respond_to and its 4 specs) was reverted by 77dc333, and the duck-type union-arm selection inside ComplexType#narrow_with was replaced by a later castwide#1231 merge carrying its plain conformance version. The respond_to? guard-narrowing work now exists only in this branch's history — no PR on either repo carries it. Its entry has been removed from the body.