Slipstream Protocol Reference
Overview
Slipstream (SLIP) is a semantic quantization protocol for efficient multi-agent coordination. Instead of transmitting verbose natural language, agents communicate via compact references to a shared semantic codebook (UCR).
Key benefit: 70-80% token reduction vs JSON-wrapped messages.
Wire Format
SLIP v1 <src> <dst> <anchor> [payload...]
SLIP v1- Protocol marker and version<src>- Source agent identifier<dst>- Destination agent identifier<anchor>- UCR semantic anchor (the intent)[payload...]- Optional unquantizable content
Core Anchors (UCR v1.0)
Requests
| Anchor | Description |
|--------|-------------|
| RequestTask | Ask agent to do something |
| RequestPlan | Ask for a plan |
| RequestReview | Ask for code/plan review |
| RequestHelp | Ask for assistance |
| RequestCancel | Request cancellation |
| RequestResource | Request resource allocation |
Information
| Anchor | Description |
|--------|-------------|
| InformComplete | Report task completion |
| InformProgress | Share progress update |
| InformBlocked | Report being blocked |
| InformStatus | General status update |
| InformResult | Share computed result |
Proposals
| Anchor | Description |
|--------|-------------|
| ProposePlan | Suggest a plan |
| ProposeChange | Suggest a modification |
| ProposeAlternative | Suggest alternative approach |
| ProposeRollback | Suggest reverting changes |
Evaluations
| Anchor | Description |
|--------|-------------|
| EvalApprove | Approve/accept something |
| EvalReject | Reject something |
| EvalNeedsWork | Request revisions |
| EvalComplete | Mark as complete |
Meta/Control
| Anchor | Description |
|--------|-------------|
| Accept | Accept a proposal/request |
| Reject | Decline a proposal/request |
| MetaAck | Acknowledge receipt |
| MetaHandoff | Hand off responsibility |
| MetaEscalate | Escalate issue |
| Fallback | Unquantizable (see payload) |
Examples
# Simple request
SLIP v1 alice bob RequestReview
# With payload
SLIP v1 planner executor RequestTask implement_auth_module
# Report completion
SLIP v1 developer team InformComplete user_service
# Approve with note
SLIP v1 reviewer author EvalApprove lgtm
# Fallback for complex content
SLIP v1 devops sre Fallback check kubernetes pods for OOMKilled
Python Usage
from slipcore import slip, decode, quantize, think_quantize_transmit
# Create message directly
wire = slip("alice", "bob", "RequestReview")
# -> "SLIP v1 alice bob RequestReview"
# Think-Quantize-Transmit pattern
wire = think_quantize_transmit(
"Please check the auth code for security issues",
src="dev", dst="reviewer"
)
# -> "SLIP v1 dev reviewer RequestReview"
# Decode
msg = decode(wire)
print(msg.anchor.canonical) # "Request review of work"
UCR Semantic Manifold
Each anchor is a position in a 4-dimensional semantic space:
| Dimension | Range | Meaning | |-----------|-------|---------| | ACTION | 0-7 | observe, inform, ask, request, propose, commit, evaluate, meta | | POLARITY | 0-7 | negative to positive valence | | DOMAIN | 0-7 | task, plan, observation, evaluation, control, resource, error, general | | URGENCY | 0-7 | background to critical |
Extension Layer
Core anchors: 0x0000-0x7FFF (standard, immutable) Extension anchors: 0x8000-0xFFFF (installation-specific)
from slipcore import ExtensionManager
manager = ExtensionManager()
anchor = manager.add_extension(
canonical="Request Kubernetes scaling",
mnemonic="RequestK8sScale",
)
Design Principles
- No special characters - Avoids BPE fragmentation
- Space-separated - Clean tokenization
- CamelCase anchors - Often single tokens
- Semantic not syntactic - Meaning over compression