Early access · asynchronous digital design

Design the event, not the clock.

AsyncSilica is an AI-assisted workspace for exploring asynchronous hardware — from handshake intent and CHP through verified STGs, mapped Verilog, and physical layout previews.

An independent project by Prithvi Deyannavar · a research prototype for engineers and researchers building beyond synchronous assumptions.

STG verification·CHP synthesis·structural Verilog·layout preview·STG verification·CHP synthesis

One thread of intent

From handshake to
physical intuition.

Keep the reasoning visible as a design moves through the asynchronous toolchain. Ask for one operation at a time; inspect the artifacts it produces.

01
↯

Describe behavior

Bring a Workcraft STG .g, a circuit .work, or ACT CHP. Start from intent, not a preselected pipeline.

.g · .work · .act
02
⌁

Verify & synthesize

Workcraft handles STG verification and synthesis. ACT handles CHP synthesis, simulation, and the act2v / v2act bridge.

formal · functional · mapped
03
▦

Explore the physical

Follow ACT components through placement and routing, Magic GDSII, Netgen LVS, and KLayout previews.

sky130 · GDSII · LVS

Choose your route

A toolchain you can
read as you go.

Explore the documented paths independently. AsyncSilica does not silently choose a route or chain operations without an explicit request.

ACT NATIVE PATH

Describe channels. Simulate the handshake.

Use ACT tools for CHP synthesis and functional simulation, then export or bridge when the design needs to meet another representation.

CHP .actsynth2 netlistact2v Verilog
InputsACT / CHP programs, channel models
Outputssimulation traces, ACT, structural Verilog

Built for the in-between

Technical depth,
without the black box.

AsyncSilica helps make asynchronous design work legible: the model, the tool call, and the generated artifact stay close together.

Tell us what you are building ↗
01

Agent-guided, not agent-decided

Explicit requests drive each operation. No hidden default workflow or automatic synthesis chain.

02

Real artifacts at every step

Inspect timing diagrams, STGs, mapped Verilog, ACT, GDSII, and reports as they are generated.

03

A bridge for experiments

Structural technology-mapped Verilog is the hand-off between Workcraft synthesis and ACT's native flow.

Research-guided exploration

Explore design
alternatives with care.

AsyncSilica helps compare and carry forward design alternatives through opt-in, evidence-led workflows—not a fully autonomous multi-agent system.

01CHP / STG alternativesResearch-mode variant generation

Sampling-temperature variation generates CHP/STG candidates for generate_and_validate_stg. Each variant goes through the existing self-verifying flow, and the winner is selected by verified structural size.

Structural hints are planned for a future Stage 2; they are not built yet.

02Persistent research memoryOpt-in Archive across local sessions

Adapted to one local Llama model, the workflow can append results to a persistent Archive across sessions. Archive Reviewer notes cover archived results, including non-winning variants, so useful context is not lost after one run.

This is not a literal multi-frontier-agent Station replica.

03On-request reflectionExplicit tools for reusable lessons

archive_and_review_result and run_meta_reflection_now make archival and Meta-Reflection explicit. Archive paths are re-verified before archival, and reflection synthesizes reusable lessons from prior results.

The workflow is opt-in/manual rather than automatic. There is no dashboard Archive browser yet; Archive data is currently kept as JSONL/Markdown on disk.

Inputs / outputs

Bring the design
you already have.

INPUT
STG & circuit models.g · .work · timing diagrams
INPUT
ACT / CHP programs.act · simulation traces · channel models
OUTPUT
Design artifactsstructural Verilog · ACT · GDSII · LVS reports · previews

Physical path

Open tooling.
Concrete targets.

The current physical exploration path is built around the open SKY130 ecosystem, with a design that can grow toward additional PDKs over time.

130nm
SKY130 / sky130l

Currently supported for physical exploration

More PDKs · planned extensibility

Good questions

Start with the
honest version.

Is AsyncSilica production-ready?

No. This is an active research prototype. It is useful for exploring flows and artifacts, but it does not promise autonomous signoff, guaranteed silicon, or production readiness.

Does the agent choose a toolchain for me?

No. AsyncSilica follows the operation you ask for. If a request is ambiguous between Workcraft and ACT routes, the agent should ask you to choose.

What PDKs can I use?

SKY130 / sky130l is the current supported physical target. Additional PDK support is planned as the interfaces mature; unsupported PDKs should not be assumed to work.

Who is early access for?

Researchers, hardware engineers, students, and curious builders working with asynchronous digital design are all welcome. Tell us what you want to explore.

Make the next run count

Help shape the
design workspace.

Leave a note and we will follow up when the next private preview is ready.

Prithvi DeyannavarQuestions, collaboration, early access