agent/CODEX.md

CODEX.md

Instructions for Codex when working in dappco.re/go/agent.

Read these files in order:

1. CODEX.md
2. .core/reference/RFC-025-AGENT-EXPERIENCE.md
3. .core/reference/docs/RFC.md
4. AGENTS.md

Overview

This repo is the Core ecosystem's agent orchestration service. It is AX-first: predictable names, named Actions, Core primitives, and behaviour-driven tests matter more than terse APIs.

Build And Test

go build ./...
go build ./cmd/core-agent/
go test ./... -count=1 -timeout 60s
go vet ./...

Core Registration Pattern

Register services through core.New and WithService, not ad hoc globals.

c := core.New(
    core.WithOption("name", "core-agent"),
    core.WithService(agentic.ProcessRegister),
    core.WithService(agentic.Register),
    core.WithService(runner.Register),
    core.WithService(monitor.Register),
    core.WithService(brain.Register),
)
c.Run()

Mandatory Conventions

• Use UK English in comments and docs.
• Use core.E("pkg.Method", "message", err) for errors. Never use fmt.Errorf or errors.New.
• Use Core filesystem helpers or package-level fs. Never use raw os.ReadFile, os.WriteFile, or filepath.*.
• Route external commands through s.Core().Process(). Never import os/exec.
• Use Core string helpers such as core.Contains, core.Trim, and core.Split instead of strings.*.
• Prefer core.Result{Value: x, OK: true} over (value, error) return pairs in Core-facing code.
• Comments should show real usage examples, not restate the signature.
• Prefer predictable names such as Config, Service, and Options; avoid abbreviations.
• Add // SPDX-License-Identifier: EUPL-1.2 to Go source files.

AX Quality Gates

Treat these imports as review failures in non-test Go code:

• os
• os/exec
• fmt
• log
• errors
• encoding/json
• path/filepath
• strings
• unsafe

Use the Core primitive or the repo helper instead.

Testing

Use AX test naming:

TestFile_Function_Good
TestFile_Function_Bad
TestFile_Function_Ugly

One source file should have its own focused test file and example file where practical. The test suite is the behavioural spec.

Commits

Use type(scope): description and include:

Co-Authored-By: Virgil <virgil@lethean.io>