MEOK SIGIL

Sovereign Inter-aGent Interchange Language — a compact, deterministic protocol for AI agents to talk to each other faster, with a lossless human-readable translator and a signable audit digest.

V|jarvis|ad6d|+|0.82
   └─ gloss() → "Agent jarvis votes APPROVE on proposal ad6d (confidence 0.82)."
   └─ digest() → 8cc4a6002bb8201a   (sign this → auditable agent log)

• ⚡ Verified compression (real tiktoken BPE): ~27% fewer tokens on already-trimmed dicts → 81% fewer (5.25×) on raw live SOV3 get_system_status output (the fat JSON agents actually pass). The bigger/messier the payload, the bigger the win. python3 -m sigil.sov3_adapter --live reproduces it against the running MCP.
• 🔁 Lossless & deterministic — one line, exactly one parse; encode(parse(x)) == x.
• 👁 Human-readable on demand — gloss() turns any line back into English.
• 🔏 Auditable — digest() gives a stable hash to sign with the MEOK attestation engine → EU AI Act Art 12/14 "verifiable agent communication."
• 🌱 Emergent — agents mint new opcodes at runtime; the language grows and stays legible.

Not David Wynn Miller "Quantum Grammar" (pseudoscience). SIGIL is a real controlled DSL — see SPEC.md.

Quick start

python3 -m sigil.benchmark      # baseline: English vs SIGIL, real tokenizer
python3 -m sigil.emergent_demo  # agents invent new opcodes at runtime
python3 -m sigil.sov3_bench     # baseline + live SOV3 A/B harness
python3 tests/test_sigil.py     # test suite

from sigil import encode, parse, gloss, digest
line = encode({"op": "V", "agent": "jarvis", "prop": "ad6d", "choice": "APPROVE", "conf": "0.82"})
gloss(line)   # human-readable English
digest(line)  # sign for an auditable transcript

Why

Fast agent protocols (Gibberlink, Droidspeak) are opaque — regulators reject that. SIGIL is fast and readable and signed. That's the moat: verifiable agent communication.

© 2026 MEOK AI LTD (CSOAI) · code MIT · spec CC BY 4.0