Proofs-first alignment checkpoint — Echo Types accommodation#24
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🔍 Hypatia Security ScanFindings: 119 issues detected
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🔍 Hypatia Security ScanFindings: 119 issues detected
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Folds the approved CI action-pinning into PR #24 (G2/G3 governance). - proof-regression.yml: pin actions/cache@v4 -> @6849a648 (SHA already trusted in rust.yml). Unblocks the Lean proof job so JtvEcho.lean is actually built/verified by CI. - rust.yml: replace unpinned, mis-named dtolnay/rust-action@stable with the trusted dtolnay/rust-toolchain@4be9e76 # stable (×4), and add a permissions: contents: read block. Clears the Hypatia unpinned_action + missing_permissions findings for rust.yml. Note: rust.yml's *build* jobs will still fail — it targets a different project's layout (packages/jtzig, tools/cli, which don't exist here) and the crate depends on the unvendored sibling patacl-core. That is Phase-3 build-truth work; rust-ci.yml is the correctly-configured Rust workflow. https://claude.ai/code/session_01EJLZKDtcF1RGdKx6TcUTQG
🔍 Hypatia Security ScanFindings: 112 issues detected
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🔍 Hypatia Security ScanFindings: 112 issues detected
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]Powered by Hypatia Neurosymbolic CI/CD Intelligence |
🔍 Hypatia Security ScanFindings: 112 issues detected
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Begins moving JtV to AffineScript's maturity/governance position, starting with proofs, and accommodates the echo-types loss taxonomy in the checker. Proofs (first): - jtv_proofs/JtvEcho.lean: formalise JtV's Echo system (spec v2 §8-9) as a bounded join-semilattice (Safe ⊑ Neutral ⊑ Breaking) with the reverse-block admissibility contract (blockEcho_admissible) and the fibre correspondence with the echo-types Agda library (Echo f y := Σ x, f x = y). Wired into lakefile.lean / proof-regression CI. sorry-free. Type checker (accommodate echo-types): - crates/jtv-core/src/echo.rs: executable image of JtvEcho.lean — Echo lattice, join, admissibility, statement classifier (validated against AST stubs). - typechecker.rs: reverse blocks rejected when aggregate echo is Breaking (JtvError::EchoViolation) — realises blockEcho_admissible. + tests. Governance (adopt the AffineScript matrix discipline): - ALIGNMENT-AFFINESCRIPT.adoc: gap analysis + phased roadmap (proofs first). - verification/PROOF-CAPABILITY-MATRIX.adoc: authoritative proof-status matrix. - academic/TODO_GAPS.md: doc-truthing — proofs are sorry-free (PROOF-5 stale). - spec: anchor §8 Echo System to echo-types / JtvEcho.lean / echo.rs. Findings recorded for later phases: jtv-core does not currently compile (ast.rs ControlStmt lacks ReversibleBlock/ReverseToken/AbandonToken used by interpreter/typechecker/cli; unvendored patacl-core path dep) — contradicting STATUS.md "100% complete". https://claude.ai/code/session_01EJLZKDtcF1RGdKx6TcUTQG
Per design decision: reverse blocks accept only EchoSafe; EchoNeutral and EchoBreaking are both rejected (stricter than spec §9, which permits Neutral via residue reversal — deferred until that runtime mechanism exists). - echo.rs: admissible_in_reverse ⇔ Safe; tests + docs updated; rustfmt-clean. - typechecker.rs: EchoViolation message reflects Safe-only policy. - JtvEcho.lean: Echo.admissible is Safe-only; admissible_iff ↔ e = safe. join_admissible / blockEcho_admissible still hold (join is safe ⇔ both safe). - spec §9, ALIGNMENT, PROOF matrix: record the Safe-only policy + the four Echo design decisions (effect-only; Safe-only; infer+@echo; bridge deferred). https://claude.ai/code/session_01EJLZKDtcF1RGdKx6TcUTQG
- Echo source is inference-only (no @echo annotation); lossy numeric widening (Float→Int) carries EchoNeutral. Revises spec §12's "widening independent of echo" — widening may raise the echo dimension but never the value type. - Echo value type (Echo<T>) deferred; AST/Type to be designed so it can be added without rework. - Confirms Safe-only reversal and independent-Lean (no Agda bridge) decisions. https://claude.ai/code/session_01EJLZKDtcF1RGdKx6TcUTQG
Per authoritative Echo design decisions: - Principle: Echo = structured, proof-relevant loss; the semantic object is retained-loss lineage/provenance, not a generic Σ-type or decorative effect. Reframed echo.rs + JtvEcho.lean accordingly (fibre = lineage carrier). - Echo source: infer-by-default + @echo(safe|neutral|breaking) checked annotations (not infer-only; needed at boundaries/foreign/audited APIs). Added @echo to spec §7. - Numeric conversions carry echo (3-way): exact⇒Safe, lossy+residue⇒Neutral, lossy-no-residue⇒Breaking; Float→Int per residue retention. Revised spec §12. - Effect-now/value-later: reserve AST/grammar for value-level Echo<T>. - Formal: JtvEcho.lean authoritative for JtV semantics; Agda↔Lean bridge deferred to Phase 4; grammar v2 not blocked on it. https://claude.ai/code/session_01EJLZKDtcF1RGdKx6TcUTQG
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🔍 Hypatia Security ScanFindings: 105 issues detected
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Summary
A scope-frozen, proofs-first alignment checkpoint for Julia the Viper: it moves JtV toward the
hyperpolymath/affinescriptmaturity/governance posture starting from proofs, and accommodates theecho-typesloss taxonomy in the type checker.This PR is intentionally a checkpoint, not an umbrella — build repair and Echo runtime implementation land in dedicated follow-up PRs (see Follow-ups).
echo-types(Agda) defines the echo offatyas the fibreEcho f y := Σ x, f x ≡ y. Echo's semantic object is retained-loss lineage — proof-relevant provenance of collapsed/weakened/sampled/projected/degraded information — not a generic Σ-type or a decorative effect. Levels:EchoSafe ⊑ EchoNeutral ⊑ EchoBreaking.What's here
Proofs first
jtv_proofs/JtvEcho.lean— Echo as a bounded join-semilattice, the reverse-block contractblockEcho_admissible, and the fibre/lineage correspondence withecho-types(injective_fibre_subsingleton,residue_lossy).sorry-free; wired intolakefile.lean/proof-regression.yml. Authoritative for JtV Echo semantics.Type checker (accommodate echo-types)
crates/jtv-core/src/echo.rs— executable image ofJtvEcho.lean(lattice, join, admissibility, statement classifier).typechecker.rs— reverse blocks admit onlyEchoSafe(JtvError::EchoViolation), realisingblockEcho_admissible; + tests.Governance / spec
ALIGNMENT-AFFINESCRIPT.adoc(gap analysis + phased roadmap + decisions of record),verification/PROOF-CAPABILITY-MATRIX.adoc,academic/TODO_GAPS.md(doc-truthing: proofs aresorry-free),spec/jtv_v2_type_system_corrected.adoc(§7@echo, §8 anchored to echo-types, §12 numeric-conversion echo).Settled Echo decisions (now recorded, no longer open)
Echo<T>can be added later without redesign.Neutral/Breakingrejected (stricter than the prior spec; matches current interpreter reality).Neutraladmission later requires an explicit carried Bennett residue.@echo(safe|neutral|breaking)— inferred by default, with checked annotations where needed (boundaries / foreign calls / audited APIs); not infer-only, not annotation-everywhere.Safe; lossy + residue ⇒Neutral; lossy without usable residue ⇒Breaking(Float→Intper residue retention). Value type unaffected.JtvEcho.leanauthoritative now;echo-typesAgda is the conceptual reference; the Agda↔Lean bridge is deferred to Phase 4; grammar v2 is not blocked on it.CI status — the red is pre-existing infra, handled by the build-truth follow-up
This checkpoint deliberately does not repair the repo's pre-existing build/CI breakage — that is the explicit job of the next PR. Known-red and out of scope here:
rust.ymltargets a different project's layout (packages/jtzig,tools/cli) and the crate depends on an unvendored siblingpatacl-core(../patacl) → Check / Clippy / Format / test fail.ast.rs↔ code drift:ControlStmtlacks theReversibleBlock/ReverseToken/AbandonTokenvariants thatinterpreter.rs,typechecker.rs, andjtv-clialready match on → the crate does not build as committed (contradictsSTATUS.md's "100% Complete"). My additions reference only real variants and were validated in isolation.proof-regression.yml(Lean) startup-fails (run created with 0 jobs) — infra, not a proof error.coverage.yml/governance.yml/generator…, missingsecret-scanner.yml, missingtimeout-minutes,curl|sh) and the bannedvscode-extensionTypeScript.Follow-ups (separate PRs, in order)
rust.yml(keeprust-ci.yml), vendor/feature-gatepatacl-core, fix theast.rsvariant drift →jtv-corecompiles and the Lean job actually runs.@echo, thread echo throughinfer_data_expr, numeric-conversion classification, reservedEcho<T>AST node, Lean updates + tests.echo-typesandEchoTypes.jlare in scope (Agda-artifact benches across elaboration / normalization / MAlonzo runtime, scaling along Echo lineage chains; CI tiers).https://claude.ai/code/session_01EJLZKDtcF1RGdKx6TcUTQG
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