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Compiler lowerer cleanup - #95
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…ostics RT38: Replace panic in derive_file_spec with eprintln + None return. Unknown file operations now produce a clear error message instead of crashing the lowerer. RT39: Replace silent advance in parse_service_config with parse errors. auth and auth_input now require identifiers; endpoint now handles both direct string literals and typed field syntax (String = "..."). RT4c: Add lowering completeness diagnostic. wire_callable_return_outputs now emits a warning when a non-optional return output can't be wired (unsupported expression kind). RT4b: Add passthrough missing-input diagnostic. When a declared output port has no wired input and falls back to Value::Skipped, an eprintln warning is emitted. https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
Extends resolve_return_expr_source() to handle BinOp, UnaryOp, If,
Match, Pipe expressions by synthesizing ReturnExprCompute nodes.
Root cause fix for the overall_success: Skipped bug (see POSTMORTEM
in tasks.md). Previously, return expressions like
`build.success && test.success && clippy.success` silently fell
through to `_ => None`, causing no edge to __out:overall_success.
Implementation:
- New PrimitiveOpKind::ReturnExprCompute { fn_body } variant
- collect_expr_leaf_refs: walks expression tree to find all node/port
source references (Ident, FieldAccess)
- remap_expr_idents: converts AST expressions to LoweredExpr with
remapped identifiers (build.success -> build__success)
- synthesize_return_expr_compute: creates compute node with inputs
from leaf references and a LoweredFnBody for evaluation
- ReturnExprComputeOp: resolver-side executor that evaluates the
fn body with inputs via evaluate_fn_body
- Updated match sites in daglang-emit (computation.rs,
rust_exec_runtime.rs)
https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
RT40: Add `is_optional: bool` to `OutputFieldSpec` and `is_type_expr_optional()`
helper in ast_utils. The TrimStdout handler in resolve_service.rs now uses
`f.is_optional` instead of the stringly-typed `f.type_id.ends_with('?')` check.
All 28 hand-coded OutputFieldSpec construction sites updated.
RT46: Replace silent fallbacks `unwrap_or(TestClass::Unit)` and
`unwrap_or(FermiCost::XS)` in fidelity.rs with explicit panics that include
the actual value. DSL evaluator results are now fail-fast on unexpected variants.
https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
RT47: Replace speculative `speculative_pos` index manipulation in multi-param lambda parsing with `try_parse_lambda_params()` helper that uses normal parser advance/peek/check methods with save/restore backtracking. Supports `(a,b)=>`, `(a, b) =>`, and `(a,b,) =>` (trailing comma). RT42: Replace hard-coded 25-name pipe method allowlist in `should_track_call_name()` with `PipeMethod` enum as single authoritative registry. `from_str` provides O(1) lookup. Adding a new pipe method now requires: (1) add variant, (2) add string match, (3) implement in eval.rs — no hidden allowlists to update. https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
RT84: Delete MockResponseDef dead scaffolding. The struct existed in the AST but the parser never populated it (always Vec::new()). Removed from OperationDef, CapabilityDef, and all 5 parser construction sites. When response blocks ship (RT48), they will use a proper ResponseDef type, not this stub. RT88 (partial): Translation layer fail-closed audit fixes: - probe_best_response(): Add diagnostic when all response candidates fail instead of silently falling back to default_shell_response(). - json_to_value(): Fix Null→"" silent coercion (now Null→Unit), add Float support for non-integer numbers (was silently stringifying). Document intentional fallbacks (heterogeneous arrays, objects). https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
Strengthen RT4b diagnostic to distinguish required vs optional output ports. execute_with_declared_output_passthrough() now receives port optionality info (derived from Port.type_id at IR level). Required ports (non-?) produce a clear error diagnostic when no wired input is found, while optional ports (T?) silently fall back to Value::Skipped as before. DeclaredOutputCallableOp and PipelineDispatchOp updated to carry Vec<(String, bool)> output_ports instead of Vec<String> output_port_names. https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
RT13: Add `registry_gen` module to derive VirtualBackendConfig requirements from DAG analysis. TransportClass enum classifies transport executors as REST/Shell/File/TCP by examining node IDs and port types. Tests for all classification paths. RT14: Replace S-tier fidelity ladder stub with real codegen that creates a VirtualTransportBackend, registers per-transport-class default stubs, and installs via TransportBackendGuard. RT15: Add M-tier sandboxed tempdir test with `sandboxed_tests` feature gate. RT16: Add L/XL tier tests with cost-gated guard_test calls using GUNBC_TEST_MAX_COST env check. RT55: Add `fermi_depth()` and `is_hermetic()` methods to ServiceTransportClass — single authoritative source for transport cost classification, mirroring DSL `transport_depth`/`transport_hermetic` in std/fidelity.dag. https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
RT58: Move param_source_* propagation into BoundaryMocks - Add propagate_to_param_sources() method to BoundaryMocks - CLI generator calls it automatically after wiring inputs - Replace 28-line manual block in sdlc.rs with 2-line call - 2 unit tests: propagation + no-overwrite-explicit RT61: Add --mode flag support to CLI generator - Add enable_mode field to ToolMeta - When enabled, generated CLIs accept --mode=verify/ensure - Verify mode forces dry-run so content_upsert checks without writing - Uses ExecMode::parse_strict for clear error on invalid values - Builder method: ToolDef::enable_mode() - 2 tests: mode-enabled and mode-disabled CLI generation RT63: Subcommand dispatch for multi-func modules - Add SubcommandDef struct to registry - Add generate_cli_with_subcommands() to CLI generator - Generates dispatch main() with per-subcommand run functions - Each subcommand gets own schema, graph builder, and mock spec - Update dsl_registry to group multi-func modules automatically - codegen_cli.rs dispatches to subcommand generation when applicable - Help text shows available subcommands - 1 test: subcommand dispatch generation https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
RT69: Move fidelity.rs from gunbc-dag to core/codegen
- Classification engine (classify_callable, classify_module, requires_from_transport_classes)
now lives in core/codegen/src/fidelity.rs with all 8 unit tests
- Added daglang-derive, daglang-driver, daglang-lower as core/codegen deps
- gunbc-dag/src/fidelity.rs retains only end-to-end smoke tests that depend
on dsl_builder (gunbc-dag internal)
- Updated testgen_dag imports to use gunbc_codegen::fidelity
RT81: Replace thin wrapper modules with generic lookup
- Added build_tool_graph(name) and tool_signature(name) to dsl_builder.rs
providing convention-based "tools/{name}.dag" compilation
- Simplified bootstrap/mod.rs, build/mod.rs, codegen/mod.rs, deps_tool.rs,
infra/mod.rs to delegate to the generic functions
- All existing callers preserved (public API unchanged)
Blocked tasks (deferred):
- RT67: resolve_service.rs → core/ir blocked by circular deps (needs exec + daglang_lower)
- RT70: dsl_builder.rs → core/codegen blocked by circular deps (needs resolve in gunbc-dag)
- RT68: mock_defaults.rs split needs trait injection point for GCP-specific logic
https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
… analysis Phase 0: Make 15+ internal types/functions pub(crate) for cross-module access (LoweredEndpoint, ServiceTransportEndpoint, ServiceCallSite, resolve fns, etc.) Phase 1: New scope.rs module with ScopedBody/ScopedItem/ScopedServiceCall types that walk callable AST bodies and preserve the scope tree — tracking which service calls are top-level vs. nested inside match/if/for control flow. Query methods: direct_service_calls(), all_service_calls(), has_service_calls(). Phase 1b: 5 integration tests against real DSL corpus (credential patterns) documenting parser limitations with lossy match arm block bodies. 13 new tests (8 unit + 5 integration), all 107 daglang-lower tests pass. https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
Problem: Service calls inside if/match branches had their transport triplets created at the top level, firing unconditionally regardless of which branch was taken. Only for-loop bodies had scoped transports. Fix: Follow the existing for-loop pattern for branches: 1. Enrich IfBranchSite with then/else service call paths 2. Enrich MatchBranchSite with per-arm service call paths 3. Update make_branch_body_dag to create transport triplets inside the branch SubDag when service calls are present (same as make_loop_body_dag) 4. Update add_control_flow_pattern_nodes to resolve and pass transports for if/match branches 5. Update add_service_call_edges to filter out branch-nested calls (previously only filtered for-loop body calls) The body_op retains condition/input ports so BranchBuilder/IfBuilder can attach guards. Transport triplets inside the guarded SubDag only execute when the branch condition is met. All 7 parity tests pass — existing DAGs unchanged (backward-compatible). 5 new tests covering detection, DAG construction, and BranchBuilder integration. https://claude.ai/code/session_019ruTLog2NipP4MtauP8L4w
…I45' into cursor/compiler-lowerer-cleanup-a0b7 Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
… snapshot updates, scope.rs warnings Merge origin/claude/red-team-tasks-zGI45 into this branch, bringing: - Scoped IR Phase 0+1: scope.rs with ScopedBody/ScopedServiceCall types - Scoped IR Phase 2+3: Branch-scoped transport triplets for if/match - Waves 3-11: RT4a (complex return expressions), RT38-RT88 hardening - Binary elimination infrastructure (RT58, RT61, RT63) - Fidelity migration + thin wrapper consolidation (RT69, RT81) Integration fixes for the merge: 1. exec-runtime: skip unclassifiable nodes (ReturnExprCompute, ExternCall, Pattern) instead of erroring — classify_handler returns None for these, which is correct skip-behavior, not an error 2. RT4c lowering warnings: remove eprintln! that broke CLI tests asserting empty stderr; leave TODO for structured LowerWarnings in return type 3. scope.rs: suppress dead_code warnings via #[allow(dead_code)] on module declaration (types are infrastructure for ongoing integration) 4. Update golden snapshots: makegen_expand.txt (+21 lines for 3 new ReturnExprCompute nodes), obligation fixtures s1/s2/s3/s5/w_clippy/w_deps 5. Add Design variant to WorkspaceBinary enum (codegen generates it) 6. Update test_tool_has_entrypoints for RT63 subcommand dispatch (multi-func tools have empty top-level entrypoints; params live on subcommands) 7. Create stub main.rs for 6 subcommand binaries not yet generated by codegen Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
…t top-level tools Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Comprehensive analysis and migration plan for refactoring the 8,300-line imperative lowerer (lib.rs) into a chain of pure functions. Key findings: - 33 functions take &mut DagBuilder (central mutable accumulator) - 30 silent drops (_ => None) in wiring paths - 22+ functions with >6 parameters (max 11) - 105 conditional skips vs 74 edge additions - 9-phase mutation pipeline prevents independent testing Proposed architecture: each phase returns typed intermediate data, mutation confined to final assemble_dag(). Six migration waves using strangler fig pattern. Subsumes RT4a/4b/4c/38/43/82/BT-E1. See docs/design/v4/lowerer-pure-function-refactor.md Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
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The WorkspaceBinary enum was a hand-maintained registry of 15 binary names
that duplicated what CargoInvocation::composed(name, "dag") already derives
from the naming convention. Every variant mapped to the same one-liner:
CargoInvocation::composed(self.component(), "dag")
This was the code smell described in design-eliminate-registration-lists.md:
a manual list that grows every time a binary is added, enforced by a test
with its own hand-maintained exclusion list (non_workspace_dispatch_bins).
Replace all WorkspaceBinary::Foo.invocation() calls with direct
CargoInvocation::composed("foo", "dag") at call sites. Delete:
- binaries.rs (173 lines including macro, enum, tests)
- Two coverage tests in tool_registration.rs that enforced enum↔Cargo.toml sync
- Re-export from lib.rs
- Imports from 8 consumer files
No behavior change — the generated CargoInvocation values are identical.
Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
…t (RT63) Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
…ring, nested call filtering
P1: exec-runtime classify_handler — fail closed on unknown ops
Replace the broad 'None => continue' with a three-way HandlerClassification
enum: Handler(kind), MetadataOnly, or None (error). Only explicitly tagged
metadata-only node kinds (Pattern, ExternCall, ContentUpsertOutputPath,
ReturnExprCompute) are skipped. Unknown ops produce UnresolvableNode error,
preventing silent emission of semantically incomplete graphs.
P1: collect_expr_leaf_refs — include param refs
Parameter identifiers were silently skipped in leaf collection, so
synthesize_return_expr_compute never created input ports or edges for
param-only expressions (e.g. return { out: a + b } where a, b are params).
Now collects param refs with a PARAM_REF_SENTINEL marker; the synthesizer
resolves them via ensure_param_source_node and wires edges from the
param_source node to the compute node input.
P2: nested service call filtering — use removal budget, not path equality
The old service_calls.retain filtered by path equality, which removed ALL
calls matching a nested path — including top-level calls that happened to
invoke the same operation. Now uses a count-based removal budget: for each
nested path, only remove as many matching calls as were detected nested,
preserving any top-level calls with the same operation path.
Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
New ReturnExprCompute + param_source nodes appear for functions where return expressions reference parameters (previously silently dropped). Makegen snapshot: +83 lines. Obligation counts: param_source_targets and pure_node_determinism_targets increase across 7 fixtures. Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Lane A (Substrate Deletion, ~12.9k LOC): Delete hand-written binaries, workflow catalog/commands/spec_builders, makegen Rust registry, extern impls, policy/pragma, tool wrappers, and compensating tests. Lane B (Compiler Hardening, ~9.2k LOC): Lowerer pure-function extraction, scope.rs integration, dead AST scaffolding deletion, fail-closed resolver audit, extract resolve/testgen/mock to core/ crates, executor dead code. Lanes touch different files — no merge conflicts. 7 existing tasks made redundant by broader consolidation design (RT29, RT56, RT57, RT86, RT87, RT44, RT13, RT18). See docs/design/v4/red-team-two-lane-plan.md Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
The codegen-dag, testgen, and pragma freshness steps passed '-- dag' as a binary argument, but none of these binaries accept 'dag' as a subcommand. codegen_cli.rs accepts: commit, rollback, codegen, cigen. Generated binaries (testgen, pragma) accept: --dry-run, --print-inputs. The 'dag' argument was likely from an earlier version of the binary protocol. Removing it lets the binaries run with their default behavior (commit for codegen-dag, standard execution for testgen/pragma). Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
collect_expr_leaf_refs now handles Expr::FieldAccess where the base is a parameter (e.g. section.has_title → port section__has_title). Without this, functions like render_document_section whose return expressions reference param fields produced ReturnExprCompute nodes with missing inputs, causing 'unbound variable: section__has_title' at runtime. The fix mirrors the plain-param-ref fix: collect with PARAM_REF_SENTINEL, then in synthesize_return_expr_compute split 'base__field' to find the base param, ensure its param_source node exists, and wire from the field port. Also removes vestigial '-- dag' arguments from freshness steps (the codegen-dag, testgen, and pragma binaries don't accept 'dag' as a subcommand). Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
1. Add #[derive(Debug, PartialEq)] to HandlerClassification enum and update 6 test assertions to use HandlerClassification::Handler(...) instead of bare HandlerKind (type mismatch prevented test compilation). 2. Fix ReturnExprCompute input port types: all ports were hardcoded to 'Bool' regardless of the actual upstream type. Now carries type_id through the collect_expr_leaf_refs 4-tuple: param refs use the param's declared type, other sources use 'Any' (field access types require port-level type resolution which isn't available at collection time). Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Theme D (B11): Expr walker totality — audit all match expr arms for silent catch-all drops in collect_expr_leaf_refs, remap_expr_idents, etc. Theme E (B12): Typed leaf references — replace PARAM_REF_SENTINEL string encoding with LeafRef enum, delete split_once decoding. Theme F: scope.rs integration priority — B2 elevated since 589-line module has zero callers outside tests. Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
… ident
The ReturnExprCompute fn body evaluator needs to resolve param.field
expressions at runtime. Previously, remap_expr_idents flattened
FieldAccess(Ident('document'), 'trailing_newline') to
Ident('document__trailing_newline'), but the input port only carried
the full record under key 'document' — causing 'unbound variable:
document__trailing_newline' at runtime.
Fix: remap_expr_idents now preserves FieldAccess structure for all
field accesses (not just non-ident bases). The evaluator handles
FieldAccess natively via field_access(). For param field access,
collect_expr_leaf_refs collects the base param name (not base__field),
so the full record flows through and the evaluator does the field
extraction.
Also adds exhaustive Expr variant handling to collect_expr_leaf_refs:
Record, StringInterp, List, Lambda, For, Return now recurse into
sub-expressions instead of silently dropping via _ => {}.
Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Add 6 architectural principles derived from PR review discussion: pure functions, clear errors, strong interfaces, no compile-then-eval, minimal language core, delete-don't-relocate. Key insight codified: the fidelity.rs 'compile a .dag, extract fn bodies, call the evaluator at runtime' pattern is an anti-pattern. DSL should compile to static data, not require re-parsing on every invocation. Added compile-then-eval deletion to consolidation opportunities. Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Functions like render_document() have let bindings (with_header, sections)
that the return expression references. ReturnExprCompute only carries the
return expression, not the preceding let bindings, so evaluation fails
with 'unbound variable: with_header'.
Fix: collect_expr_leaf_refs now detects unresolvable identifiers (not a
param, not a bound callable/service, not an endpoint) and sets
has_local_refs. synthesize_return_expr_compute returns None when local
refs are detected, falling back to the existing passthrough mechanism.
Also adds exhaustive Expr variant handling to collect_expr_leaf_refs
(If, Record, StringInterp, List, Lambda, For, Return, UnaryOp) instead
of silently dropping via _ => {}. StringInterp added to remap_expr_idents.
Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
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Co-authored-by: Cursor <cursoragent@cursor.com>
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CI fmt check drift on substrate-eval helpers and gate #95 asserts. Co-authored-by: Cursor <cursoragent@cursor.com>
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…ace) Composer review #12221: parallelism_iteration_opt_in_enforcement_violates now returns Result<bool, LensApplyError>; missing parallelism.dag maps to SubstrateReflect. Document ParallelismIterationBudget as GREEN coproduct per modeling-discipline §4. Co-authored-by: Cursor <cursoragent@cursor.com>
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v3 job failed on unclassified ^type ParallelismMode in parallelism.dag; add POSITIVE_ROWS inventory entry plus thesis/ROADMAP disposition sync (LAS gate #95 budget carrier). Co-authored-by: Cursor <cursoragent@cursor.com>
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Extend sg0-pr-body-append.3131.txt to receipt dag.rs/lib.rs/lower.rs alongside enforced_lens_application for the same gate #95 slice; align INVARIANTS integration + LAS consumer cross-refs. Co-authored-by: Cursor <cursoragent@cursor.com>
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…trated (T-Lens-Application-Surface / **Cluster F (T-LP-Ret) (#3131) * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * fix(ci): SG-0 PR-body prepend for gate #95 census (+1) Co-authored-by: Cursor <cursoragent@cursor.com> * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * docs(test): clarify gate #95 integration vs enforced_application split Co-authored-by: Cursor <cursoragent@cursor.com> * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * chore: rustfmt enforced_lens_application (gate #95) CI fmt check drift on substrate-eval helpers and gate #95 asserts. Co-authored-by: Cursor <cursoragent@cursor.com> * fix(v3-compiler): gate #95 probe returns Result (no public panic surface) Composer review #12221: parallelism_iteration_opt_in_enforcement_violates now returns Result<bool, LensApplyError>; missing parallelism.dag maps to SubstrateReflect. Document ParallelismIterationBudget as GREEN coproduct per modeling-discipline §4. Co-authored-by: Cursor <cursoragent@cursor.com> * docs(test): clarify gate #95 integration banner for Result probe Co-authored-by: Cursor <cursoragent@cursor.com> * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * docs(parallelism): Practice §4 TERMINAL checkpoint for ParallelismMode Codex inline BLOCKING on parallelism.dag: classify OptInIndependent|Sequential coproduct per modeling-discipline §4 adjacent to the type declaration (LAS budget carrier vs Lane‑2 workflow). Co-authored-by: Cursor <cursoragent@cursor.com> * fix(ci): classify ParallelismMode in compiler-std ratchet (#642) v3 job failed on unclassified ^type ParallelismMode in parallelism.dag; add POSITIVE_ROWS inventory entry plus thesis/ROADMAP disposition sync (LAS gate #95 budget carrier). Co-authored-by: Cursor <cursoragent@cursor.com> * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * WIP: R3 gate #95: opt_in_iteration_parallelism_via_lens_application_demonstra * docs(thesis): restore End state line in compiler-std consolidation Fix inline editing artifact (...findings. 0. Each...) by splitting the explicit primary-ratchet end-state sentence onto its own line (Claude api-review exploratory note). Co-authored-by: Cursor <cursoragent@cursor.com> * docs(thesis): align compiler-std primary ratchet count with TRACKED_ROWS (4) openai-pro review: prose said \"3\" while ROADMAP + check-compiler-std-ratchet.sh enumerate four in-ratchet scaffold carriers including NonCommutingPairLookup. Point readers at TRACKED_ROWS / BASELINE_TRACKED_TOTAL as authority; restore tokenizer-migration clause dropped in the tightening edit. Co-authored-by: Cursor <cursoragent@cursor.com> * docs(p5): enumerate gate #95 hand-Rust co-touches in 3131 prepend Extend sg0-pr-body-append.3131.txt to receipt dag.rs/lib.rs/lower.rs alongside enforced_lens_application for the same gate #95 slice; align INVARIANTS integration + LAS consumer cross-refs. Co-authored-by: Cursor <cursoragent@cursor.com> --------- Co-authored-by: Cursor <cursoragent@cursor.com>
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Merge
red-teamlowerer refactor branch and resolve integration issues to consolidate ongoing refactor work and stabilize the codebase.This PR integrates the Red Team hardening (RT4a, RT63, etc.) and Scoped IR (Phase 0-3) lowerer refactor efforts. It fixes several integration issues, including
exec-runtimepanics, CLI tests failing due to stderr warnings, dead code in the newscope.rsmodule, outdated snapshot fixtures, missingWorkspaceBinaryenum variants, and tests not accounting for subcommand dispatch. A design document for the next phase of the lowerer refactor is also included.