Know what is stable before you depend on it

Public surfaces

core · browser · docs

Why this is not more stable

• Contract 0.1 is local-only, capped at 50 projects, and FNV integrity is tamper evidence rather than an author signature; cross-device synchronization remains out of scope.
• Collaboration contract 0.1 keeps at most 20 revision snapshots per project, scans only the first 4,096 source characters per file for search, and caps each diff side at 200 displayed changed lines while retaining full counts and hashes.
• Cross-surface handoff is an integrity-protected URL-fragment carrier, not a signature or remote share service; it preserves source, target, seed, dataset, project, learning, and return context without requiring an account.
• The 50-project maximum-capacity ratchet is complete and configured on Windows/Linux Node 20/22; remote matrix evidence for the current candidate remains open.
• The strict privacy-minimized operations export and evaluator are complete; promotion still requires a reviewed real 14-day window with at least 100 sessions and 100 persistence operations.

Promotion gates

Dependencies

multiFileWorkspace

Evidence

28 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · browser · docs

Why this is not more stable

• Contract 0.2 benchmarks local expectation workloads across five optimizers and frozen supervised datasets across the genuinely supported GD/Momentum/Adam set; unsupported supervised optimizers fail instead of being silently downgraded.
• Durations are environment-specific. The local maximum-profile performance ratchet is complete; remote Windows/Linux Node 20/22 conformance evidence for the current candidate remains open.

Promotion gates

Dependencies

trainBlock, experimentRecords

Evidence

14 source references. Open the capability contract for the complete list.

Public surfaces

core · browser · docs

Why this is not more stable

• Contract 0.1 is local-only, capped at 200 records, and has no remote synchronization or cross-device conflict resolution.
• Playground and Quantum AI records are projected into a project activity timeline only when run ids or source hashes match; the projection is capped at 300 events and does not mutate the canonical history.
• The Windows/Linux browser/Node 20/22 migration and maximum-carrier workflow is configured, but remote matrix evidence remains open.

Promotion gates

Dependencies

experimentRecords

Evidence

16 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · lsp · vscode · browser · docs

Why this is not more stable

• NM-RFC-0004 is disabled by default and provides deterministic supervised validation, early stopping, step scheduling, and in-memory best-parameter checkpoint restoration only after explicit feature negotiation.
• Durable exact-GD persistence/resume is a separate NM-RFC-0009 capability; arbitrary validation splits and composed schedulers remain outside this source-syntax slice. A local 8-parameter/100-step maximum-workload ratchet exists; the current candidate still needs a Windows/Linux Node 20/22 parity and performance matrix rerun.

Promotion gates

Dependencies

parser, trainBlock, embeddedQmlDatasets, languageServer

Evidence

26 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · browser · docs

Why this is not more stable

• NM-RFC-0009 is disabled by default and supports durable exact continuation for GD only; Momentum, Adam, SPSA, and QNG optimizer state is rejected instead of reset silently.
• The artifact embeds bounded source and training history, uses FNV-1a integrity for accidental corruption detection rather than cryptographic authenticity, and has no remote object-store transport.

Promotion gates

Dependencies

trainBlock, embeddedQmlDatasets, modelPackages, cli

Evidence

11 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · lsp · vscode · browser · docs

Why this is not more stable

• NM-RFC-0005 is enabled in new CLI, LSP, VS Code, MCP and Playground sessions. Low-level Core and Worker calls retain explicit feature contexts; saved settings are preserved.
• Float sin/cos/sqrt/exp/log/log1p/expm1/tanh/sigmoid/abs/floor/ceil/round share bounded runtime and IDE signatures. Trigonometric inputs use radians; sqrt needs nonnegative input, and its parameter-dependent zero derivative is unsupported. Direct gate math additionally requires classicalFunctions and uses the adjoint chain rule for training.
• The base typed-value slice remains immutable with literal indices. With classicalFunctions, pure helpers additionally support bounded for loops, mutable Int/Float locals and runtime-checked Int indexing. Analytic training supports documented differentiable accumulators and parameter-independent index paths; unsupported parameter-dependent discrete choices report diagnostics. Unbounded loops and recursive calls remain unsupported. The current Windows/Linux Node 20/22 conformance and performance matrix remains open.

Promotion gates

Dependencies

parser, statevectorRuntime, languageServer, qasm3Export

Evidence

30 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · lsp · vscode · browser · docs

Why this is not more stable

• NM-RFC-0006 is disabled by default and requires explicit Core, CLI, LSP, VS Code, Worker, or Playground negotiation.
• Connectivity comparison is exact and max_error uses a versioned bounded reference model, not live hardware calibration. The Windows/Linux Node 20/22 conformance matrix remains open.

Promotion gates

Dependencies

parser, statevectorRuntime, targetNativeLowering, calibratedPlacement, targetScheduling, qasm3Export, languageServer

Evidence

28 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · lsp · vscode · browser · docs

Why this is not more stable

• NM-RFC-0007 is enabled in new CLI, MCP, LSP, VS Code and Playground sessions. Low-level Core and Worker calls retain explicit feature contexts; saved settings are preserved.
• Contract 0.2 supports Result<T, Error> on main with exactly one final top-level ok(value) or bounded symbolic error return; named functions, branch-sensitive returns, propagation operators, free-form errors, and exceptions remain outside this slice. The Windows/Linux Node 20/22 conformance matrix remains open.

Promotion gates

Dependencies

parser, statevectorRuntime, typedClassicalValues, languageServer, qasm3Export

Evidence

33 source references. Open the capability contract for the complete list.

Public surfaces

core · cli · lsp · mcp · vscode · browser · docs

Why this is not more stable

• NM-RFC-0010 is disabled by default. It provides compile-time typed XorOracle and PhaseOracle declarations, bounded modifiers, and deterministic monomorphization; it does not provide runtime-sized registers or dynamic oracle values.
• DJ/BV structural verification supports N <= 99 when the existing stabilizer backend is eligible. Exhaustive verification and Grover remain capped at total width five; generic Simon, QPE, general multi-control synthesis, and statevector ceiling changes remain out of scope.

Promotion gates

Dependencies

parser, statevectorRuntime, stabilizerRuntime, exactImports, languageServer, qasm3Export

Evidence

38 source references. Open the capability contract for the complete list.