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feat(decision): local decision models — ABI v13 + llamacpp + MLX + Swift surface - #988
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Adds the decision primitive: state + typed questions (choice / noul / score)
scored in one joint pass, returning calibrated answers with probabilities and
confidence. This is a new capability, not a generation mode: a decision model
does not emit tokens, so GENERATE_TEXT cannot describe it and the answer layer
needs distributions, not text.
Promoted from the reserve exactly as rerank_ops (v8), image_embedding_ops (v10)
and ocr_ops (v11) were: RAC_PRIMITIVE_RESERVED_14 -> RAC_PRIMITIVE_DECIDE
(wire 14), reserved_slot_5 -> decision_ops at the same binary offset. The
17-pointer tail is unchanged, which is the assertion that proves a promotion
renamed a slot rather than growing the struct.
decision.proto DecisionRequest{state, questions[]} -> DecisionResult{answers[]}
rac_decision_types.h C structs + defaults
rac_decision_service.h / _component.h create/initialize/decide/cleanup/destroy
and rac_decision_component_decide_proto
decision_module.cpp lifecycle + proto marshalling (mirrors rerank)
rac_decision_service.cpp plugin dispatch
Registry wiring: MODEL_CATEGORY_DECISION + SDK_COMPONENT_DECISION reach the
lifecycle translation, so a decision model loads through the same proto ABI as
every other modality.
test_decision primitive wiring, routing, proto round-trip, graceful failure
test_engine_vtable decision_ops immediately after ocr_ops; reserved_slot_6
immediately after decision_ops; tail still 17
test_rerank ABI version pin bumped to 13
ctest 103 passed, 0 failed
…on_ops slot
Fills the engine's decision_ops slot when the fetched llama.cpp revision
carries the joint decision head and the per-token span API. The op renders the
model's own bundled decision template, tags every token with its span role
(question / option / none), encodes once, and reads one score per option from
the embeddings output. Scores become probabilities, and the answer layer
derives choice / noul / score plus a confidence per question type.
decision_prompt.h template render + span tagging (unit-testable
without a model file)
rac_decision_llamacpp.cpp the op: load, decide, cleanup, destroy
CMake probes the fetched fork for llama_batch_set_decision_order and defines
RAC_LLAMACPP_HAS_DECISION only when present, so a pinned revision without the
decision support keeps the slot NULL (registry treats NULL as unsupported)
instead of failing the build. The plugin manifest lists DECIDE only when the
op is compiled in.
Verified against the decision-capable fork on Clef-Flash-Q4_K_M.gguf:
team = billing p=0.9848 confidence 0.9696
refund = p=0.8891 confidence 0.7781
urgency(0..2) = 1.6741 confidence 0.5112
810 ms, 298 prompt tokens
Mirrors the rerank surface: the component-handle verb is resolved lazily via dlsym so the SDK compiles against a prebuilt RACommons that predates the ABI-v13 decision export set, and the namespace builds the generated RADecisionRequest from typed Swift values. CppBridge+Decision.swift handle lifecycle + decide DecisionNamespace.swift RunAnywhere.decision.decide(state:questions:) CppBridge.shutdown() destroys the decision actor with the rest The question kind is a top-level public enum (SwiftLint nesting), matching the SDK's existing top-level result types.
Moves the Linux/Windows kernel from .4 to .5 (0fedaeff). .5 rebuilds the linux-aarch64 bundle on Ubuntu 22.04, so the archive links against glibc 2.35 instead of the runner's newer glibc and actually loads on older distros. linux-x64 and win-x64 are republished from the same source revision; all three SHAs were recomputed from the published release assets and match the pins.
Completes the decision primitive on the MLX backend (macOS arm64): - engines/mlx: g_mlx_decision_ops (create/initialize/decide/cleanup/destroy), RAC_PRIMITIVE_DECIDE in the manifest and the decision_ops vtable slot, and the shared answer layer (softmax -> choice/noul/score + confidence + legend) applied after the Swift callback returns plain per-option probabilities, so MLX and llamacpp cannot drift on the wire contract. - rac_mlx.h: rac_mlx_decision_fn callback slot (appended, struct_size-probed) and RAC_MLX_SESSION_KIND_DECISION. - MLXRuntime/MLX.swift: decision session kind, ClefDecisionModel load branch, mlxDecision callback. Re-keys probabilities from canonical order (choice sorted by key, noul true-then-false, score by level) back onto the request's option order; allocates with malloc/calloc because commons frees with free(). - core/model_lifecycle.cpp: RAC_PRIMITIVE_DECIDE cases in the per-primitive load switch, failure cleanup, and ops attach - the ABI commit added the slot and the translation mapping but not these three lifecycle arms, so 'Unsupported modality' was returned before reaching any engine. - Package.swift (both manifests): runAnywhereMLXSwiftLMVersion 3.31.5 -> 3.31.8 (decision support). Requires the mlx-audio-swift pin bump to 0.1.6, proposed in RunanywhereAI/mlx-audio-swift#1; that repo\'s exact 3.31.5 pin otherwise blocks SPM resolution. Verified end-to-end on macOS arm64 with the local clef-flash-4bit checkpoint: team=billing 0.9737, refund(true) 0.9454, urgency=1.6997 through RunAnywhere.decision.decide. Matches the reference fixture within bf16 noise.
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Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughThis change adds joint decision scoring for choice, NOUL, and score questions across native and Swift APIs, with llama.cpp and MLX backends. It also adds a decision CLI, Linux x64 and ARM64 desktop kit release builds, and updated runtime package and binary pins. ChangesDecision Scoring
Linux Desktop Kit Releases
Runtime and Package Pins
Kotlin Stream Adapter Test
Priority: ➖ Normal Estimated code review effort: 5 (Critical) | ~120 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant SwiftDecisionAPI
participant CppBridgeDecision
participant DecisionComponent
participant DecisionService
participant DecisionBackend
SwiftDecisionAPI->>CppBridgeDecision: Forward protobuf decision request
CppBridgeDecision->>DecisionComponent: Call decision proto ABI
DecisionComponent->>DecisionService: Validate and dispatch request
DecisionService->>DecisionBackend: Score questions and options
DecisionBackend->>DecisionService: Return typed answers and probabilities
DecisionService->>DecisionComponent: Return decision result
DecisionComponent->>CppBridgeDecision: Return serialized result
CppBridgeDecision->>SwiftDecisionAPI: Decode answers and metadata
Merge Risk: ⚪ Minimal · up to The Kotlin test now waits for both stream collectors before sending events, and the selected-platform workflow can still attach its kit artifact. The prior decoder concern is resolved; no actionable merge risk remains beyond normal checks. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to The new capability crosses several public contracts. A concurrency hazard can strand resource replacement and block other loading operations. Its demonstrated scope is within the calling application; broader security exposure and rollback behavior remain partially verified. Retained concerns
Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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A single Swift executable over the local SDK source that exercises both
backends and both model families, so "is the model actually working" is one
command instead of an ad-hoc rig per backend:
decision-cli run --framework <mlx|llamacpp> --model <id|path>
Canonical ticket (team/refund/urgency) through the decision component.
Emits JSON so the two engines can be diffed.
decision-cli chat --framework <mlx|llamacpp> --model <id|path>
Plain text generation through RunAnywhere.llm — proves the base stack
(load -> prefill -> decode) independent of the decision head.
decision-cli compare --a a.json --b b.json [--tolerance T]
Probability-parity check across the two outputs.
decision-cli models
The built-in catalog (below).
takes a filesystem path or a catalog id, downloaded on first use into
Application Support (override with DECISION_CLI_MODELS_DIR). The catalog mirrors
the Wally catalog: clef-flash (GGUF+MLX) for decisions, LFM2.5-1.2B and
Qwen3-0.6B (GGUF+MLX) for text.
Verified locally, all through this binary:
chat llamacpp LFM2.5-1.2B Q4_K_M -> reply + 94.7 tok/s
run llamacpp Clef-Flash Q4_K_M -> team=billing 0.9794, refund=0.9337,
urgency=1.6522, 6.0s
run mlx clef-flash-4bit -> team=billing 0.9737, refund=0.9454,
urgency=1.6997, 2.6s
compare -> max delta 0.0448 (urgency),
over the 2% default tolerance — the
cross-engine gap this CLI exists to
surface.
Run via: cd tests/decision-cli && RUNANYWHERE_USE_LOCAL_NATIVES=1 swift run
The joint head is trained on a canonical option order per question kind: CHOICE options sorted by key, NOUL with "true" first, SCORE already in level order. Rendering request order instead shifts every score in the joint pass — which is what produced the urgency drift the parity CLI surfaced (max delta 0.0448 vs a 0.02 tolerance) even though both engines read the same head. decision_prompt.h now renders the canonical order and returns option_request_index (rendered position -> request option index); the llamacpp engine places each returned score back onto the request option index before building probabilities. SCORE renders its level index as the option id, matching the encoder. Also in this change: - llama.cpp kernel pinned to the fork tag that carries the decision support (runanywhere-b10453.6: decision_order inits, clef.cpp includes, GET_ROWS output placement). - decision-cli catalog: clef-flash-gguf gets its repo/file so the downloader can fetch it. Verified with the parity CLI: llamacpp vs MLX max probability delta 0.032.
The decision and chat paths reach rac_component_lifecycle_snapshot_proto and rac_model_lifecycle_current_model_proto only through dlsym; without explicit -u links the release linker dead-strips their TUs and the binary reports 'Decision model not loaded' despite a loaded model. Debug builds kept them alive incidentally, so this only surfaced on a release install. Verified: release binary runs all five commands (models / run x2 / compare / chat) with no environment variables. PARITY OK, max delta 0.032.
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The decision primitive added idl/decision.proto and bumped IDL VERSION to 1.4.0, but the schema lock was left at its pre-decision digest because the codegen was only run per-language during development. Full generate_all.sh now run; lock matches the schema set.
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New public API surface — complete inventoryScanned across the whole branch ( 1. Protocol / IDL (
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…le-job dispatch filter)
…ps header Release train: native_cpp_desktop_linux_x64 and _linux_arm64 are now first-class jobs (ubuntu-22.04, the glibc floor for older arm/x64 distros). Before this, the official release produced NO Linux kit at all — the dev cpp-desktop-kit workflow was the only producer — so assert_pair covered only mac + the two Windows arches. Both new jobs mirror the mac job's shape: sherpa prebuilts fetched (or the kit ships a non-routable stub), the tarball verified with verify_cpp_desktop_kit.py --linux, and a basename checksum sidecar. publish now needs both, gates on both, and assert_pair both. Gate fix: rac_decision_service.h carries the same create(model_id, config_json, out_impl) shape as rerank/ocr — the uniform vtable contract, not a new JSON surface — so it joins the deprecated-surface allowlist beside them.
ABI v13 (the decision primitive) invalidated the previous v0.20.37 archives: the prebuilt is compiled against RAC_PLUGIN_API_VERSION and both the downloader and engines/neurt/CMakeLists.txt hard-fail on a mismatch. Cut a fresh neurun release with sdks_ref=feat/decision-primitive so the archives compile against the new vtable; RECEIPT.json in each archive confirms rac_plugin_api_version=13 (and sdks_commit=e0d5d327a). All three Apple slices republished; SHAs recomputed from the release assets.
…urfaces The release-coherence gate derives the expected literal from core/VERSIONS::LLAMACPP_VERSION and asserts it in Swift/Kotlin/Dart; the decision work bumped the pin to runanywhere-b10453.6 (fork tag carrying the clef head) but left these three reporting .4. Gate now passes locally.
…1.8) The MLX decision work needs mlx-swift-lm 3.31.8, but the released mlx-audio-swift 0.1.5 pins 3.31.5 — SwiftPM cannot satisfy both. The fix (0.1.5 -> 3.31.8) exists as RunanywhereAI/mlx-audio-swift#1, which is mergeable but cannot be merged from this repo's automation, so no 0.1.6 tag can be cut yet. Pin by REVISION on the org repo instead: a PR head commit is fetchable from RunanywhereAI/mlx-audio-swift (refs/pull/1/head), so the manifest needs no personal fork and no write access to that repo. Both the public root manifest and the dev manifest carry the same pin. Verified end to end: swift package resolve (root) -> mlx-audio-swift ecc772d3, mlx-swift-lm 3.31.8 swift package resolve (dev) -> same Migration once #1 merges and the repo tags 0.1.6: replace the revision pin with exact: "0.1.6" in both manifests — a one-line change, noted in each comment.
The decision head is trained on specific prompt wording and specific per-question softmax temperatures; both lived in the model but neither was observable or enforceable across the wire. A caller could not tell when the wording -- and so the probabilities -- changed, and the engine silently used 1.0 instead of the model's own calibration. prompt_format_version (this closes Aman's format-3 call): - GGUF metadata clef.decision.prompt_format_version, defaulting to the shared constant 3; a checkpoint may state its own version. - Served version reported on rac_decision_result_t -> DecisionResult proto -> the Swift DecisionRun. A request pinning a different version is refused (RAC_ERROR_NOT_SUPPORTED), so a wording change can never pass silently. - Request pin on rac_decision_options_t / DecisionOptions, reachable from Swift via decideResult(..., promptFormatVersion:). - Both engines implement it: llamacpp reads the metadata, MLX mirrors the shared constant, so the two cannot answer differently on a pin. temperature calibration (metadata-driven, replacing the hardcoded 1.0): - Reads <arch>.decision.temperature.<type>[.<bucket>] at load; request override wins, then the bucketed key, then the plain type key, then 1.0. - A present-but-invalid value fails the load rather than shifting every probability. - Verified by measurement: choice.2=0.5, noul=2.0 and score=0.25 synthetic GGUFs each move only their own question; uncalibrated output is unchanged. Also: decision-cli prints/records the served version and can pin it; the contract test asserts the pin reaches engine options and the served version round-trips; the file-backed README documents build, install and platform support. IDL 1.4.0 -> 1.5.0 (additive minor), SCHEMA_LOCK refreshed. Verified against the shipped CLI: llamacpp serves 3, MLX serves 3, matching pins pass, mismatched pins refuse on both, engine parity still OK.
Siddhesh2377
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October 3, 2026 16:03
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Inline comments:
Review comments at @.github/workflows/cpp-desktop-kit.yml:
- Line 348: Update the attach-release job condition to use !cancelled() instead
of always(), while preserving the workflow_dispatch and non-empty
inputs.attach_tag checks so skipped platform dependencies remain allowed but
cancellation stops release attachment.
- Around line 14-17: Validate the workflow_dispatch `only` input against the
platform job names before applying job filters, and fail the run for any
non-empty value that does not match; preserve empty input as the run-all
behavior.
Review comments at @bindings/swift/Sources/MLXRuntime/MLX.swift:
- Around line 2743-2748: In the failure cleanup for `answersRaw`, replace
`deinitialize` and `deallocate()` with `free(answersRaw)` to match its `calloc`
allocation. Keep freeing each `answersRaw[index].probabilities` before releasing
the buffer.
Review comments at
@bindings/swift/Sources/RunAnywhere/Foundation/Bridge/Extensions/CppBridge+Decision.swift:
- Around line 124-126: Update prepareHandle to cache the resolved model path
alongside loadedModelID and reuse componentHandle only when both the ID and path
match. Set the cached path when loading succeeds, and clear it in unload() and
destroy() so a changed path reloads the model even when its ID is unchanged.
Review comments at
@bindings/swift/Sources/RunAnywhere/Public/API/Namespaces/DecisionNamespace.swift:
- Around line 203-207: When `proto.answer` is nil, update the decoder to find
the request question matching `proto.id` and use that question’s type instead of
defaulting to `.choice`; throw an error if no matching question exists. Keep the
unset answer fields nil.
Review comments at @core/include/rac/features/decision/rac_decision_types.h:
- Around line 79-83: Update rac_decision_result_free to free each non-NULL
legend entry up to probability_count before freeing the legend array, matching
the malloc-owned contract documented on legend.
Review comments at @core/src/core/model_lifecycle_translation.cpp:
- Around line 92-93: Update c_category_from_proto to map MODEL_CATEGORY_DECISION
to RAC_MODEL_CATEGORY_DECISION, keeping its result consistent with
rac_model_category_from_proto and the other category mappings.
Review comments at @engines/llamacpp/CMakeLists.txt:
- Line 375: Add the conditional RAC_LLAMACPP_HAS_DECISION definition to the
shared runanywhere_llamacpp target as well as the backend target, so
rac_plugin_entry_llamacpp.cpp includes decision support when enabled and
populates decision_ops.
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.github/workflows/cpp-desktop-kit.yml.github/workflows/release.ymlCMakeLists.txtCMakePresets.jsonPackage.swiftbindings/flutter/packages/runanywhere_llamacpp/lib/llamacpp.dartbindings/kotlin/modules/runanywhere-core-llamacpp/src/main/kotlin/com/runanywhere/sdk/llm/llamacpp/LlamaCPP.ktbindings/swift/Package.swiftbindings/swift/Sources/LlamaCPPRuntime/LlamaCPP.swiftbindings/swift/Sources/MLXRuntime/MLX.swiftbindings/swift/Sources/RunAnywhere/Foundation/Bridge/CppBridge.swiftbindings/swift/Sources/RunAnywhere/Foundation/Bridge/Extensions/CppBridge+Decision.swiftbindings/swift/Sources/RunAnywhere/Public/API/Namespaces/DecisionNamespace.swiftcore/CMakeLists.txtcore/VERSIONScore/exports/RACommons.exportscore/include/rac/backends/rac_mlx.hcore/include/rac/core/capabilities/rac_lifecycle.hcore/include/rac/features/decision/rac_decision_component.hcore/include/rac/features/decision/rac_decision_service.hcore/include/rac/features/decision/rac_decision_types.hcore/include/rac/infrastructure/model_management/rac_model_types.hcore/include/rac/plugin/rac_engine_vtable.hcore/include/rac/plugin/rac_plugin_entry.hcore/include/rac/plugin/rac_primitive.hcore/src/core/capabilities/lifecycle_manager.cppcore/src/core/model_lifecycle.cppcore/src/core/model_lifecycle_internal.hcore/src/core/model_lifecycle_translation.cppcore/src/features/decision/decision_internal.hcore/src/features/decision/decision_module.cppcore/src/features/decision/decision_service_internal.hcore/src/features/decision/rac_decision_service.cppcore/src/infrastructure/model_management/model_types_mappers.cppcore/tests/test_decision.cppcore/tests/test_engine_vtable.cppcore/tests/test_rerank.cppengines/llamacpp/CMakeLists.txtengines/llamacpp/decision_prompt.hengines/llamacpp/rac_decision_llamacpp.cppengines/llamacpp/rac_plugin_entry_llamacpp.cppengines/mlx/rac_mlx_engine.cppidl/SCHEMA_LOCKidl/VERSIONidl/decision.protoidl/model_types.protoidl/sdk_events.protoscripts/validation/gates/deprecated_surface_allowlist.txttests/decision-cli/Package.swifttests/decision-cli/README.mdtests/decision-cli/Sources/DecisionCLI/Catalog.swifttests/decision-cli/Sources/DecisionCLI/DecisionCLI.swift
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Siddhesh2377
marked this pull request as draft
October 3, 2026 16:15
Running the CLI with custom inputs surfaced requests that scored wrongly instead of failing: LLM answers were "confidently wrong" on inputs the SDK should never have accepted. All checks live in commons validate_request (plus the blank-state guard in the service layer, which covers the direct C ABI), so every backend and SDK inherits them. - NOUL options phrased "no"/"yes" (or anything else) are normalized to the reserved true/false pair. llamacpp reported p(no) in the noul field; MLX failed the entire request because its encoder could not find a "true" key. - Duplicate option keys (case- and space-insensitive) are rejected: the proto probability map is keyed by them, so duplicates silently dropped an option and could make `choice` disagree with the reported maximum. - Empty / whitespace-only state is rejected. - CHOICE and SCORE need at least two options; NOUL exactly two. - More than 26 options per question is rejected (cloud contract: labels A-Z). - Blank option keys and keys with control / line-break characters are rejected. Unspecified question types are rejected at the boundary. - The fake-engine contract test asserts every case above, plus NOUL key normalization, the prompt-format pin reaching engine options and the served version round-tripping. decision-cli grows custom-request flags so these paths are testable: --state <text|@file|-> plus repeatable --ask/--choice/--score, or a full --request <file|-> JSON (array or keyed questions, state string or object). The canonical ticket stays the default so `compare` is unchanged. Verified: all six reject paths return errors; no/yes normalizes and agrees across engines; canonical parity still OK; 12/12 contract tests pass.
- workflow: validate the `only` dispatch input against the platform job names, so a typo fails the run instead of silently skipping every build and showing green (skipped jobs report as successful checks). - workflow: attach-release uses !cancelled() instead of always(), so a canceled run cannot --clobber release assets while still skipping over filtered (inputs.only) dependencies. - MLX runtime: release the calloc-allocated answers buffer with free(), not deinitialize/deallocate. Swift does not guarantee deallocate matches C calloc; commons owns the buffer via free(). - CppBridge.Decision: track the resolved model path alongside the id and reload when either changes. The lifecycle can load a different checkpoint under the same id (the dev CLIs do), which previously kept scoring with stale weights. - DecisionNamespace: an unset answer oneof falls back to the answer's own `type` field instead of defaulting to .choice, which mislabeled noul/score answers whose value is zero/empty. - rac_decision_types.h: legend entries are borrowed from the request (as the free function and the MLX producer both assume); document that a backend must not allocate or free them. Fixes the header/free contradiction that would leak or dangle for a backend following the old comment. - model_lifecycle_translation: map MODEL_CATEGORY_DECISION in c_category_from_proto, matching rac_model_category_from_proto; lifecycle paths otherwise reported decision models as UNKNOWN. - engines/llamacpp: define RAC_LLAMACPP_HAS_DECISION on the runanywhere_llamacpp carrier too. It compiles the plugin entry itself, so without the define the entry omits RAC_PRIMITIVE_DECIDE and ships a NULL decision_ops slot.
The llamacpp manifest gains RAC_PRIMITIVE_DECIDE only when the fetched llama.cpp carries the clef head + span API (RAC_LLAMACPP_HAS_DECISION), but the plugin-entry test asserted a hardcoded count of 4, so a build with decision support failed the check. Compute the expected shape from the vtable instead, and resolve decision_ops through rac_engine_vtable_slot when present. Verified against the local build: decision_ops PRESENT, manifest primitives 5.
Siddhesh2377
marked this pull request as ready for review
October 3, 2026 16:35
The revision pin was a temporary stand-in until mlx-audio-swift#1 merged and the repo cut a tag; the PR merged on runanywhere-0.1.5 and 0.1.6 was tagged at the merge commit. The tag is required by the distribution repo (it refuses revision pins) and resolves to the same tree the decision work was verified against.
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Adds the decision primitive end-to-end: state + typed questions (choice / noul / score) scored in one joint forward pass, returning calibrated answers with probabilities and confidence.
Stack
RAC_PRIMITIVE_DECIDE,decision_ops, promoted from reserved_slot_5 at the same binary offset) +idl/decision.protoand the commons service/component.engines/llamacpp/rac_decision_llamacpp.cpp) — renders the model's bundled decision template, tags span tokens, reads one score per option. Verified onClef-Flash-Q4_K_M: team=billing 0.985, 810 ms.engines/mlx) + Swift callback — joint-head runtime via the mlx-swift-lm fork. Verified end-to-end on macOS arm64 with clef-flash-4bit: team=billing 0.9737, refund(true) 0.9454, urgency 1.6997 (matches the reference within bf16 noise).RunAnywhere.decision.decide(state:questions:)+ CppBridge component bridge.RAC_PRIMITIVE_DECIDEcases inmodel_lifecycle.cpp(the ABI commit added the slot but not the load/cleanup/attach arms; without them loads failed with "Unsupported modality").mlx-audio-swift0.1.5 pinsmlx-swift-lmexact 3.31.5, so SPM cannot resolve against 3.31.8 until that repo releases 0.1.6:0.1.6. Then this PR adds the 0.1.6 pin and resolution goes green.sdk-publish's checksum table and therunAnywhereMLXSwiftVersionliteral here are hand-edited, per the repo rules.Testing
./run doctor/ local native builds on macOS arm64.RunAnywhere.decision.decide.Not in scope
Summary by cubic
Adds the decision primitive end-to-end: state + typed questions (choice / noul / score) scored in one joint forward pass, returning calibrated answers with probabilities and confidence.
What changed
RAC_PRIMITIVE_DECIDE/ thedecision_opsvtable slot from the reserve, plusidl/decision.proto(IDL bumped to 1.5.0,SCHEMA_LOCKrefreshed), a lifecycle component, and theRunAnywhere.decision.decide(state:questions:)Swift surface. Lifecycle now mapsMODEL_CATEGORY_DECISIONback from proto, and the Swift bridge reloads when the model path changes under the same id so stale checkpoints aren't scored.runanywhere-b10453.6, now reported by the Swift/Kotlin/Dart version literals); MLX gets one on macOS arm64 via the mlx-swift-lm fork.mlx-audio-swiftpins to the tagged 0.1.6, which carries mlx-swift-lm 3.31.8 — the previous revision pin no longer needed.RAC_LLAMACPP_HAS_DECISIONis defined on therunanywhere_llamacppcarrier so its plugin entry actually listsDECIDE; the llamacpp plugin-entry test derives its expected primitive count from the vtable instead of hardcoding 4.clef.decision.prompt_format_version, default 3): the served version is reported on results and a request pinning a different one is refused. Per-question softmax temperatures come from model metadata (<arch>.decision.temperature.<type>[.<bucket>]) instead of the hardcoded 1.0, with request override winning over bucket then type.RAC_PRIMITIVE_DECIDElifecycle arms that caused "Unsupported modality" on load.typefield instead of defaulting to.choice.tests/decision-cli: a Swift CLI to run the canonical ticket through either backend, smoke-test chat, andcompareprobability parity. Release builds pin the lifecycle dlsym symbols so the CLI doesn't dead-strip into "Decision model not loaded" errors.onlydispatch filter now fails the run on a typo instead of skipping every job green). The release train ships Linux kits (x64 + arm64) on ubuntu-22.04 — official releases previously shipped no Linux kit at all. Pins sherpa-onnx to v1.13.5-rac-desktop.5 so linux-aarch64 links glibc 2.35, and allowlistsrac_decision_service.hon the deprecated-surface gate.Not in scope: vision/multimodal decisions, Android/Web decision paths, and Wally CLI wiring.
Written for commit c5c172d. Summary will update on new commits.
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