DESIGN.md@specs/graph-agentsA
DESIGN.md@specs/graph-agents from dimetron/pi-go is a DESIGN.md file: the design rules coding agents follow in that repo.
mdr add dimetron/pi-go/specs/graph-agents/DESIGN.md@git:20260811.d4dc255Pins git:20260811.d4dc255 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 14 of 14 checks passed
- Kind
- DESIGN.md file
- Repository
- dimetron/pi-go
- Path
specs/graph-agents/DESIGN.md- Versions recorded
- 1
- Latest version
- git:20260811.d4dc255, committed Aug 11, 2026
- Size
- 17,312 bytes
- Repository stars
- 214
- License
- MIT
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Design: Graph-Based Agents for pi-go ## Overview pi-go already runs on Google ADK Go (`google.golang.org/adk/v2 v2.1.0`) but uses only the **agent loop** (`llmagent` + `runner.Runner` in `internal/agent/agent.go:368-385`). The ADK **workflow graph engine** (`adk/v2/workflow`) ships in the same module and is never imported. Meanwhile pi-go hand-rolls all orchestration as process spawning and prompt-driven JSON pipelines. This design adopts ADK's graph engine as the orchestration layer — **on top of** the existing subprocess spawner, not replacing it. Deterministic pipelines (the `/run` spec workflow, parallel research fan-out, review loops) become declared graphs with retries, joins, routing, and cross-turn persistence. LLM-initiated single spawns stay as-is. The reference checkout is `tmp/adk/adk-go` at v2.2.0-4-g817fdc0 — the same module pi-go pins, four commits past v2.2.0. ## Current State (pi-go) ### What pi-go uses from ADK today - `llmagent.New` — single agent loop (`internal/agent/agent.go:369`) - `runner.Runner` — drives the run loop (`internal/agent/agent.go:385`) - `session` — conversation state + events (`internal/session/store.go`) …
Read the whole file at its exact version.
How to install
mdr add dimetron/pi-go/specs/graph-agents/DESIGN.md@sha256:8c5679e3bc15f8caThe line at the top of this page pins the label git:20260811.d4dc255, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_alm534plsnfjeie2)
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Versions
The registry has recorded 1 version of this file, committed on Aug 11, 2026.
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Source
dimetron/pi-go · 214 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_alm534plsnfjeie2 GET https://markdownregistry.com/api/v1/resolve?ref=dimetron/pi-go/specs/graph-agents/DESIGN.md GET https://markdownregistry.com/api/v1/blob/8c5679e3bc15f8cafa869bbd5e16ac2f62111a5b0a1590ebb6454d8b96bf52a6
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: what DESIGN.md is and how agents use it · which agent file does what.