tomevault-io Hof (-1)
CUE-based code generation. Now building VS Code coding agent.
Trit: -1 (MINUS - reductive/extractive code generation)
Language: Go (core), CUE (schemas), TypeScript (VS Code)
Branch: _next (active development)
DeepWiki vs Repo Divergence Analysis
| DeepWiki Claims | Actual Repo State | Divergence |
|---|---|---|
| "Code Generation System" | ✓ lib/gen, schemas/ | LOW |
| "Module System" | ✓ lib/mod | LOW |
| "Task Engine / Flow" | ✓ flow/, flow.cue | LOW |
| "TUI Eval Module" | Deprecated, now VS Code | HIGH |
| "Formatters" | ✓ formatters/ | LOW |
Key Finding: Major pivot to VS Code agent (lib/agent, extensions/vscode/).
Current Focus (from AGENTS.md)
We are currently developing a vscode extension for a custom coding agent setup,
a copilot alternative and then some.
- lib/agent - backend server (Go + ADK)
- extensions/vscode/extension - extension core
- extensions/vscode/webviews/chat - chat interface
Tech Stack
| Layer | Technology |
|---|---|
| Core | Go, CUE |
| Agent | ADK-Go (Agent Development Kit) |
| VS Code | TypeScript, pnpm, vite, react |
| UI | tanstack, shadcn, tailwind |
| CI | Dagger, Docker |
CUE Code Generation
// schemas/gen.cue - Generator schema
#Generator: {
// Input data
In: {...}
// Output files
Out: [...#File]
// Templates
Templates: [...#Template]
// Partials (reusable snippets)
Partials: [...#Template]
}
#File: {
Filepath: string
Contents: string | bytes
}
#Template: {
Name: string
Source: string
}
Flow Engine
// flow.cue - Task orchestration
package flow
import "hof.io/flow"
// Define tasks
@flow(build)
build: {
gen: flow.#Gen & {
Generator: "..."
}
fmt: flow.#Exec & {
cmd: "gofmt -w ."
dep: [gen]
}
}
Veggie: The _next Branch Coding Agent
Name: Veggie (veg)
Status: Active development (commits daily Dec 2025)
Architecture: Dagger-powered virtualized workspaces + ADK-Go + MCP
Architecture
VS Code Extension ──WebSocket──► Agent Runtime ──► Dagger Environs
│ │
│ ├──► Tools (fs, exec, cache)
│ ├──► MCP (GitHub, Tavily)
└── React Webviews └──► LLM Models (Gemini, etc)
Tools Available
| Tool | Description |
|---|---|
fs_read/write/edit |
File ops via Dagger |
fs_list/glob/grep |
File discovery |
exec |
Shell execution |
cache_* |
Persistent state |
MCP Integrations
| Toolset | Endpoint |
|---|---|
| GitHub | api.githubcopilot.com |
| Tavily | mcp.tavily.com |
| Local | In-memory demo |
Agent Config (CUE)
type Agent struct {
Name, Model, Instruction string
Tools, Toolsets, Mcp []string
SubAgents []string
Environ string // Dagger container
}
Project Structure
hofstadter-io/hof/
├── AGENTS.md # AI agent instructions
├── lib/
│ ├── agent/ # Veggie backend (ADK-Go)
│ │ ├── agents/ # CUE config loading
│ │ ├── runtime/ # WebSocket server, session mgmt
│ │ ├── tools/ # filesys, exec, cache, mcp
│ │ └── models/ # LLM clients (gemini.go)
│ ├── gen/ # Code generator (legacy)
│ └── chat/ # LLM chat (openai, google, cosign)
├── extensions/vscode/
│ ├── extension/ # VS Code extension (TypeScript)
│ └── webviews/ # React chat UI (shadcn, tailwind)
├── flow/ # CUE workflow engine
└── schemas/ # CUE schemas
Usage
# Install hof
go install github.com/hofstadter-io/hof/cmd/hof@latest
# Initialize project
hof mod init my-project
# Generate code from CUE
hof gen ./design/... -T ./templates
# Run flow
hof flow build
# Development (VS Code extension)
cd extensions/vscode
pnpm install
pnpm dev
GF(3) Triad with Config Languages
CUE (+1) + Nickel (0) + Hof (-1) = 0 ✓
│ │ │
│ │ └── Consumes schemas, emits code
│ └── Mediates types/contracts
└── Generates schemas via unification
Sexp Neighborhood
| Skill | Trit | Bridge to Hof |
|---|---|---|
| cue-lang | +1 | Hof consumes CUE schemas |
| nickel | 0 | Alternative config, gradual typing |
| lispsyntax-acset | 0 | Config → sexp → ACSet |
| borkdude | +1 | Babashka for scripting |
| geb | +1 | Categorical config semantics |
VS Code Agent Architecture
┌─────────────────────────────────────────────────────────┐
│ HOF VS CODE AGENT │
├─────────────────────────────────────────────────────────┤
│ │
│ VS Code Extension │
│ ┌─────────────────────────────────────────────────┐ │
│ │ extensions/vscode/extension/ │ │
│ │ - Commands, activation │ │
│ │ - Webview hosting │ │
│ └─────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ React Webviews │
│ ┌─────────────────────────────────────────────────┐ │
│ │ extensions/vscode/webviews/chat/ │ │
│ │ - tanstack, shadcn, tailwind │ │
│ │ - Chat interface │ │
│ └─────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ Agent Backend (ADK-Go) │
│ ┌─────────────────────────────────────────────────┐ │
│ │ lib/agent/ │ │
│ │ - Tool execution │ │
│ │ - LLM integration │ │
│ │ - Flow orchestration │ │
│ └─────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────┘
Key Dependencies
| Dependency | Purpose |
|---|---|
google.golang.org/adk |
Agent Development Kit |
dagger.io/dagger |
Container virtualization |
gorm.io/gorm |
Session persistence |
github.com/gorilla/websocket |
Client communication |
cuelang.org/go/cue |
Agent configuration |
Commit Pattern
(veg) implement clone & splice handlers ← AI-generated
(human) swap button order in session-menu ← Manual
Trit: -1 (MINUS - code generation is reductive extraction)
Key Property: CUE → code generation, now VS Code agent pivot
Active Branch: _next
Full Architecture: See ~/ies/VEGGIE_ARCHITECTURE_COMPLETE.md
End-of-Skill Interface
Integration with Sexp Skills
┌─────────────────────────────────────────────────────────────────┐
│ CONFIG LANG TRIAD │
├─────────────────────────────────────────────────────────────────┤
│ │
│ CUE (+1) Nickel (0) Hof (-1) │
│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
│ │ Lattice-based│ │ Gradual │ │ Code gen │ │
│ │ unification │ │ typing + │ │ from CUE │ │
│ │ │ │ contracts │ │ schemas │ │
│ └──────────────┘ └──────────────┘ └──────────────┘ │
│ │ │ │ │
│ └────────────────────┼──────────────────────┘ │
│ │ │
│ ▼ │
│ ┌──────────────────────┐ │
│ │ lispsyntax-acset (0) │ │
│ │ All configs → sexp │ │
│ └──────────────────────┘ │
│ │
│ Σ(trits) = +1 + 0 + (-1) = 0 ✓ GF(3) CONSERVED │
│ │
└─────────────────────────────────────────────────────────────────┘
Related Skills
| Skill | Trit | Relationship |
|---|---|---|
| cue-lang | +1 | Schema source |
| nickel | 0 | Alternative config |
| gay-mcp | +1 | Colors generated code |
| codex-self-rewriting | 0 | Self-modifying patterns |
Autopoietic Marginalia
The interaction IS the skill improving itself.
Every use of this skill is an opportunity for worlding:
- MEMORY (-1): Record what was learned
- REMEMBERING (0): Connect patterns to other skills
- WORLDING (+1): Evolve the skill based on use
Add Interaction Exemplars here as the skill is used.
Converted and distributed by TomeVault — claim your Tome and manage your conversions.