Issues

• ltm: 24 C-LEARN link scores are identically zero in discovery mode although both endpoints vary

  ltm
  bpowers/simlin#1064 · Filter by author bpowers opened on Sep 11, 2026

• ltm: one causal link read through two reference sites is scored as two split partials (isolated loop scores 0.667, not 1)

  engineltm
  bpowers/simlin#1061 · Filter by author bpowers opened on Sep 10, 2026

• ltm: a model dependency inside a frozen dependency's subscript index is lagged twice in the ceteris-paribus partial

  engineltm
  bpowers/simlin#1060 · Filter by author bpowers opened on Sep 10, 2026

• test: TestProject array_* builders accept a subscript over an undeclared dimension, so a fixture can pass on a model that never compiles

  bpowers/simlin#1058 · Filter by author bpowers opened on Sep 5, 2026

• engine: ltm_discovery_mode is still a salsa input; flipping it discards the other mode's memos

  bpowers/simlin#1056 · Filter by author bpowers opened on Sep 5, 2026

• engine: XMILE 1.0 section 4.7.1 bare <connect to="Input"> (the spec's own module-input spelling; Stella 10.0.6 writer) binds no port -- BadModuleInputDst warning, empty_equation refusal; only Stella's module-qualified to= wires

  bpowers/simlin#1053 · Filter by author bpowers opened on Sep 4, 2026

• engine: SUM(pop[coast]) with coast a subrange the target does not range over is refused as "mismatched_dimensions -- pop" -- the diagnostic names the variable, not the subrange or the *:coast spelling that compiles

  bpowers/simlin#1052 · Filter by author bpowers opened on Sep 4, 2026

• engine: reducer over a scalar-shaped expression is refused (SUM(pop * 2) in an apply-to-all body, SUM(s * 2)) where SUM(pop) * 2 compiles -- the materializer declines a 0-d operand; origin/main computes it x|D|

  bpowers/simlin#1051 · Filter by author bpowers opened on Sep 4, 2026

• engine: variable-vs-dimension name collision is never refused at definition; each spelling resolves it differently (plain read accepted, PREVIOUS/INIT refused, bare read silently yields the element index)

  bpowers/simlin#1050 · Filter by author bpowers opened on Sep 4, 2026

• docs: full verification pass of ltm--loops-that-matter.md against the LTM code (build_partial_equation is gone; recompute passage describes the adapter, not ModuleOverrideCache; module-role taxonomy is prose-only)

  bpowers/simlin#1049 · Filter by author bpowers opened on Sep 4, 2026

• engine: same-instance XMILE <connect> (from=bridge.output to=bridge.input) has no settled meaning; binds nothing + BadModuleInputSrc warning since V9a-2

  bpowers/simlin#1048 · Filter by author bpowers opened on Sep 4, 2026
  1

• test: e2e_mcp_browser asserts a 2s wall-clock propagation budget on a debug build under pre-commit load (flaky)

  bpowers/simlin#1046 · Filter by author bpowers opened on Sep 4, 2026

• engine: a dimension edit recompiles every fragment -- the fragment tier reads project_dimensions_context whole while the parse tier is per-variable

  bpowers/simlin#1045 · Filter by author bpowers opened on Sep 4, 2026

• engine: an iterated-dimension subscript over an undeclared, disjoint-named axis reads by ordinal on the static subscript path and is refused on the dynamic one

  bpowers/simlin#1044 · Filter by author bpowers opened on Sep 4, 2026

• engine: dependency graph carries edges for a variable the bounds tier refuses (min_max_1arg)

  enginetech debt
  bpowers/simlin#1043 · Filter by author bpowers opened on Sep 4, 2026

• ltm: reducer beside a dynamic-index co-source is un-hoisted and every row's link score is the silent delta-ratio stand-in of +-1 (no diagnostic)

  bpowers/simlin#1042 · Filter by author bpowers opened on Sep 4, 2026

• ltm: bare reducer argument in a per-element (Ast::Arrayed) slot is declined loudly -- spell the slot's pinned element so the hoisted node is per slot

  engineenhancementltm
  bpowers/simlin#1041 · Filter by author bpowers opened on Sep 3, 2026

• ltm: --ltm warning order is process-random (model_ltm_variables iterates CausalEdgesResult.edges HashMap)

  engineltm
  bpowers/simlin#1036 · Filter by author bpowers opened on Sep 2, 2026

• engine: ACTIVE INITIAL whose dt and initial equations both hoist a helper is refused as duplicate_variable (no phase discriminator in synthetic_ident)

  bugengine
  bpowers/simlin#1034 · Filter by author bpowers opened on Sep 2, 2026

• engine: stdlib module functions accept any argument count -- SMTH3(5) simulates silently

  bugengine
  bpowers/simlin#1031 · Filter by author bpowers opened on Aug 26, 2026
  1

• diagram: equation-error reasons stop at the FFI, so the app shows only the error code

  enhancementfrontend
  bpowers/simlin#1030 · Filter by author bpowers opened on Aug 26, 2026

• engine: RANK, two-arg MAX/MIN, and n-ary MEAN diverge from XMILE v1.0 section 3.7.1.3 without documentation

  compatengine
  bpowers/simlin#1026 · Filter by author bpowers opened on Aug 25, 2026
  1

• engine: lower plain apply-to-all equations to VM loops instead of compile-time per-element unrolling

  engineenhancement
  bpowers/simlin#1025 · Filter by author bpowers opened on Aug 25, 2026
  1

• ltm: an omitted link-score arm reports 0 where the materialized arm reported NaN -- which is right?

  ltm
  bpowers/simlin#1022 · Filter by author bpowers opened on Aug 10, 2026

• build: the production deploy script never runs verify-deploy-build.sh, so the deploy-assembly checks cover only the staged path

  ci
  bpowers/simlin#1020 · Filter by author bpowers opened on Aug 10, 2026