T81 Foundation

T81 Foundation – Current Status

Source of Truth: This document defines the current operational state of the project (what is true today). For future plans, see ../process/roadmaps-plans/ROADMAP.md. For version history, see CHANGELOG.md.

Last Updated: March 6, 2026 Status: Active development (governance-controlled core with mixed maturity)

1. Snapshot

2. Component Maturity

Component Maturity Spec Version Test Coverage Notes
T81Lang Beta Draft spec / Beta implementation High Implementation maturity is Beta under active drift/governance controls.
TISC Stable v1.1.0 High Binary serialization and opcode matrix complete.
T81VM Beta v1.1 surface High Core execution loop active with continued verification and governance controls; integer/BigInt paths now have explicit runtime materialization, tensor helpers preserve an explicit exact-int/exact-trit subset through integer-safe ops, finite tensors now use canonical fixed backing as the authoritative deterministic storage lane while retaining compatibility host-float views, generic tensor serialization can emit versioned canonical-fixed payloads with legacy-read compatibility, native tensor decode now routes through a shared tensor-native decoder, CanonFS tensor objects accept CanonicalFixed payloads, softmax, attention, rmsnorm, and rope use deterministic fixed math across canonical finite inputs before host-float materialization, and Axion traces emit structured tensor provenance events for storage/numeric-class transitions. Broad tensor/AI determinism claims remain scoped to governed/verified surfaces rather than the entire runtime.
Axion Alpha Draft surface coverage High Policy enforcement active with partial draft-surface coverage.
CanonFS Beta v0.9.x Medium Persistent/In-memory drivers implemented; integrity/performance hardening ongoing.
CLI Beta - Medium run/compile stable; debug/trace improving.
JIT Experimental - Low Threaded Interpreter only (not machine code JIT).
Cognitive Tiers Concept / Experimental Draft Mixed Experimental, non-DCP, non-verified unless promoted through governance.

Maturity Levels:

3. Cognitive Tier Status

Tier Name Status Notes
T1 Symbolic Experimental implementation Non-DCP unless promoted through governance.
T2 Reflective Experimental implementation Non-DCP unless promoted through governance.
T3 Recursive Experimental implementation Non-DCP unless promoted through governance.
T4 Distributed Experimental implementation Non-DCP unless promoted through governance.
T5 Infinite Experimental / partial Non-DCP unless promoted through governance.

4. Supported Toolchains

The following environments are explicitly supported and verified in CI:

Platform OS Compiler Status
Linux (x86_64) Ubuntu 24.04 GCC 14, Clang 18 Primary Tier (Determinism Gate)
Linux (ARM64) Ubuntu 24.04 Clang 18 Primary Tier (Determinism Gate)
macOS (ARM64) macOS 14 Clang (Apple) Supported
macOS (x86_64) macOS 13 GCC 14 Supported
Windows (x86_64) Windows Server 2022 MSVC (VS 2022) Supported (Best Effort)

5. Validation Ritual

cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --parallel
ctest --test-dir build --output-on-failure

Single-threaded safe mode:

cmake --build build --parallel 1
ctest --test-dir build --output-on-failure -j1