Mirror integration spec v0.1: multi-language cascade architecture (math, not vibes)#1
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…spec-v0.1.md — canonical spec for @io/stagefreight contract implementation Cross-repo cascade tick — continues from mirror PR PrPlanIT#1 (the StageFreight substrate-decl preservation PR that merged 2026-06-22 with @io/stagefreight family-root, /narrative species, Mara's canonical wire spec, Seam adversarial review, and release notes). This is the consumer-side substrate-decl preservation spec for the StageFreight Go repository: the typed contract mirror's @io/stagefreight declares, translated into Go type shapes + validation predicates as a thin adapter package (forward-promised: internal/stagefreightmirror/). Substrate-pull-correct discipline: - §1 recognition + multi-repo span made operational - §2 carrier-by-carrier and predicate-by-predicate mirror → Go translation - §3 package layout under existing StageFreight boundary discipline - §4 address derivation (reverse-DNS + projection-kind + OID-short) - §5 narrative projection (v0.1 hedge on crystal task #268) - §6 CI integration (no .gitlab-ci.yml changes at v0.1) - §7 falsification criteria with honest hedges - §8 what this PR does NOT do (5 explicit exclusions) - §9 forward-promises after this spec (6 steps) - §10 pre-AI prior art (Go service patterns; gRPC; IPFS; Cap'n Proto; reverse-DNS Java/Apple/DBus; StageFreight's own substrate) - §11 PR shape (title, branch, diff estimate, forward-promise template) - §12 acknowledgments Honest hedges throughout: - Magic contract/invariant opaque at v0.1 (cross-family bilateral forward-promised on Rust realisation) - Crystal record floor-only at v0.1 (typed-record fields gated on task #268) - Cross-projection consistency falsification gated on sibling species - Bytes-on-wire transport forward-promised (Phase 1 + Phase 4b gates) This PR ships only the spec. Implementation (Go package skeleton) and realisation (mirror Rust side) are explicitly subsequent ticks.
…spec-v0.1.md — Seam C(b)+C(f)+C(i) closures Restores the cross-family @magic bilateral seam dropped from v1: - §2.5 StagefreightAddressable: adds fifth sub-predicate invariant_preserved to the composition chain, threading opaque Contract/Promise through Env. Structural seam preserved. - §2.6 Freight: restores `requires invariant_preserved(c, promise)` in the composition order, with composed-bilateral discharge sketch. Names the cross-family bilateral as BOUNDED-by-default at v0.1 pending Rust realisation. - §3.1 magic.go: opaque struct shape with unexported `_marker` field (Seam's recommendation); typed but unconstructible until realisation. InvariantPreserved no-op stub returns BOUNDED. - §3.1.2 env.go: forward-promise note pinning StoreView → @mirror/store and ProjectionRegistry → @io/stagefreight/<species> registry, closing C(f). - §11.6.1: explicit hedge — consumer-side deferral of the cross-family bilateral is FORWARD-PROMISED, not RATIFIED. Both ratification paths (full deferral / substantive validation) are honored by the v0.1 structure. - §11.4 PR template: adds forward-promises 6 (substantive @magic discharge) and 7 (concrete interface methods) for downstream traceability. Closes Seam C(b), C(f), C(i) (all TIGHT mild). DEFENSIVE → BOUNDED.
…ves author's caching pain Five additive sections (§13-§17) lift the spec from substrate-decl preservation to MVP-shaped intervention. The cascade is the structural move: Purescript → typed-JS → npm-installable artifact → arbitrary downstream npm consumers — one runtime substrate-decl, broad consumer reach, no JS type-soup. JVM/NPM/Python are post-MVP by construction (§14.4 + §14.5); the scope-creep gravity gets a substrate-pull-correct boundary defense. §13 maps the author's MVP-in-flight to mirror primitives explicitly: content-addressed cache IS `splinter.content: oid` (shards/glass.mirror line 222); binary-stash-for-Dockerfile-targeting IS `shard.id: uuid_spectral` + `spectral_coordinate` (line 347 + §4). The Dockerfile FROM-by-spectral_coordinate pattern is concrete. Frame: accelerator of work-already-happening, not new integration burden. §14 draws the MVP boundary. Stage-1 in-scope: native binaries + content-addressed cache + Dockerfile FROM-by-oid + Purescript runtime + npm consumer cascade. Three substrate-pull reasons for Purescript- first: (1) functor/monad/applicative composes with the parametric algebra recognition #51 named; (2) pure functional aligns with substrate-pull-correctness; (3) compiles to JS without inheriting JS type-soup. The cascade dissolves the "we need npm support" pull without committing to raw NPM substrate-decl. §15 names the cascade substrate-decl shape: `purescript_source`, `purescript_module`, `npm_artifact = labeled<purescript_module>` (per recognition #93 H4 — substrate already supports parametric carriers via shift(T)/settle(T) per boot/00-prism.mirror; labeled<v, m> = annotated(v, m) composes immediately). Three actions (compile, bundle, resolve); one composed bilateral (cascade_well_formed) discharging purescript_well_typed AND npm_consumable. Four honest hedges including spago/pulp output-shape difference, module-path-to-oid canonicalization, Dockerfile FROM multi-file payload, and FFI purity boundary. §16 forward-promises a concrete demonstration artifact at `examples/purescript-cascade/`: minimal Purescript module + spago build + mirror cache hit + npm package consuming the typed-JS output. PR-A may ship the skeleton; the working example may land as PR-B once Purescript shards land mirror-side. §17 names the bang: one PR closes the loop on caching, on typed runtimes, on consumer reach, and on the scope-creep gravity — the convergence IS the load-bearing move. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…ily-root; Purescript as Stage-1 instance This is the third Mara enhancement of mirror-integration-spec-v0.1.md on this branch. Mara-1 (commit 092d73a) treated Purescript→npm as THE substrate; Mara-2 surveyed ten typed-alternative stacks at the mirror side. Today's framing shift on the StageFreight PR: the substrate IS the multi-language cascade architecture; Purescript→npm is the Stage-1 INSTANCE of that architecture. Substrate ground: the @cascade family-root landed mirror-side at shards/cascade.mirror (recognition #95 candidate, 2026-06-23). It declares the parametric `cascade<source_grammar, target_grammar>` primitive with `compile`, `measure`, `cascade` actions, the `loss_lens` carrier, and the `cascade_well_defined` composed bilateral. This is the architecture; future cascades are additive species shards. Framing shifts applied (Mara-1's hard work preserved, broadened): - §14 heading: from "Purescript cascade in-scope, other runtimes post-MVP" → "multi-language cascade architecture in-scope; Purescript→npm as Stage-1 instance" - §14.1: broadened to name the @cascade family-root as the architecture (item 4) and Purescript→npm as the Stage-1 species instance (item 5); references Mara's survey - §14.4: rewritten to frame post-MVP cascades as species shards (not architectural changes); per-grammar-pair rationale - §15 heading + intro: rewritten to reference the LANDED shards/cascade.mirror as substrate; Purescript→npm body retained as species discharge New sections added (the "math, not vibes" delivery and the species roadmap): - §16 NEW "Mathematical formalization: loss as substrate primitive" — 5 concrete pieces: loss_lens as measurement instrument; compilation as functor with loss = dimension reduction (per recognition #51); measure() returning imperfect<>; loss as composite of @epistemologic/properties (per Alex's standing feedback); per-program loss as substrate-typed data; connection to @kintsugi (which heals what cascade measures). Honest hedge: per-cascade discharge is at species-altitude. - §17 NEW "Cascade species roadmap" — Stage-1 table (Purescript→npm IN this PR); Stage-2 candidates table (ReScript→npm, Gleam→BEAM+JS dual, F#→NuGet from Mara survey top 3); Stage-3+ list; three honestly-named counterexamples (Crystal/Ruby, Hack/PHP, Oil/Nushell); degenerate sub-pattern (language-internal strictness) - §18 (was §16), §19 (was §17): renumbered; §19 broadened from 4 → 5 convergence points (added the mathematical formalization) Also fixed per Alex's direction (item 1 of "fix as you see fit"): - Sign-off inconsistency: removed §12's "Mara, 2026-06-22" sign-off; consolidated to single 2026-06-23 footer at end of doc; §12 now carries a pointer note Honest hedges self-named: - The architecture is mathematical; per-cascade realisation (the Purescript ↔ JS loss number bit-for-bit) is incremental and forward-promised at the species shard - The labeled<> functor primitive that loss_lens<> rests on is forward-promised at shards/labeled.mirror (per #93 H4 PARTIAL) - Mara-2's survey is N=10; the cascade architecture's universality beyond surveyed instances is conjectural Branch unchanged: still mara/stagefreight-mirror-integration-spec-v0.1. DO NOT push; awaiting Seam adversarial review per Reed's process. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…T + 2 META framing tightenings Seam adversarial review of Mara-3's broadening (c909957) returned BOUNDED-with-revisions: substance sound, framing risks raising author expectation higher than what PR-A ships. 5 TIGHT (load-bearing surface revisions) + 2 META (recommended provenance/honesty additions). All applied per Seam's specific recommendations. REVISIONS APPLIED: 1. §1.2 (TIGHT) — explicit "this PR lands the SPEC; Go adapter is PR-B forward-promised next tick." Distinguishes contract from implementation at the framing altitude. 2. §13.4 NEW (TIGHT) — "What works today vs what's forward-promised" subsection with table. Marks Dockerfile example as forward-promised pattern, not currently executable. Author can structure MVP caching against the typed shape now; live shim follows. 3. §15.1 (TIGHT) — explicit forward-promise note on labeled<> functor per #93 H4 PARTIAL. Substrate-pull-honest about cascade-tick order (shards/labeled.mirror lands before Purescript species shard discharges npm_artifact as load-bearing). 4. §16 (TIGHT) — pulled closing hedge to OPENING as framing note. "Math, not vibes" section now opens with substrate-pull-honest framing (names where math LIVES vs what this spec carries) before the five concrete pieces. Closes Seam's "math is framed-vocabulary- not-discharged" probe. 5. §19 (TIGHT) — explicit "what ships in PR-A is the SPEC naming all five; implementations are forward-promised tail" before the convergence list. Defuses §19 reading as "five things ship now." 6. §12 (META) — added session provenance acknowledgment: the cascade architecture (§§14-§19) was developed same-day 2026-06-23 via Pack- discipline cascade (@cascade substrate-decl, typed-alternatives survey, broadening, this Seam-driven consolidation). Provenance honesty per Seam C10. 7. §17.2 (META) — footnote that Stage-2 candidates pending Pack-peer verification per survey §5.1. Architecture admits them; roadmap commitment requires verification beyond Mara N=1-per-stack. Pack-discipline closure trail: 84f780b → Mara-original canonical spec 092d73a → Mara-1 Purescript cascade enhancement c909957 → Mara-3 multi-language broaden + math formalization [this] → Reed consolidation of Seam BOUNDED findings Branch ready for push to StageFreight origin per Alex 2026-06-23 hedge PrPlanIT#1 resolution ("We stay Pack. Instructions are for AI agents that work with the author of the library; Alex isn't the library author"). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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What this PR ships
The SPEC for the multi-language translation layer.
docs/architecture/mirror-integration-spec-v0.1.md— typed contract;the Go adapter package described herein is the forward-promised next
tick (PR-B).
Why it lands now
Solves the MVP work in flight via substrate-pull-correct typing:
oidkeying (splinter.content: oid)spectral_coordinatereverse-DNS wire addressing@cascadefamily-root(recognition #95 candidate); Purescript→npm as Stage-1 instance;
JVM/F#/Gleam/etc as additive species shards post-MVP
The "math, not vibes" delivery
§16 names the typed surface for loss measurement:
loss_lens<source_grammar, target_grammar>parametric carrier;measure(source, artifact, lens) -> imperfect<artifact, error, information_loss>substrate-typed measurement. Loss as composite of
@epistemologic/propertiesper established discipline — not Shannon, not invented.
Substrate-decl ratified at v0.1; per-cascade computation discharged
at species altitude (forward-promised).
Architecture references (mirror side, landed)
shards/cascade.mirror—@cascadefamily-root (recognition #95 candidate)docs/research/2026-06-23-typed-alternatives-cascade-survey.md— 10-stack surveydocs/specs/recognitions/recognition-93-cogito-cognitive-substrate-candidate.md— H4 `labeled<>` functor primitive (forward-promised at `shards/labeled.mirror`)Pack-discipline cycle (provenance)
Same-day cascade:
@cascadesubstrate-decl (Reed) → typed-alternativessurvey (Mara) → spec broadening (Mara) → Seam adversarial review
(BOUNDED-with-revisions) → Reed consolidation (5 TIGHT + 2 META applied).
Honest hedges (surfaced explicitly in spec)
Counterpart
Twin of mirror PR #1 (
systemic-engineering/mirror).🤖 Generated with Claude Code