byoh

Most AI setups hand you a fixed set of tools and say "good luck." BYOH flips that: it interviews you, learns what you actually do, and generates a personalized agent harness — skills, agents, goal pipelines — that fits your workflow out of the box.

Who is this for?

• Developers who want an agent that already knows their stack, test style, and delivery cadence
• Researchers who need literature review, citation tracking, and synthesis wired together
• Creators who want a writing partner that matches their voice and project structure
• Business analysts who need decision frameworks and reporting pipelines, not raw chat

If you've ever thought "I wish my AI actually knew my context" — this is what BYOH does.

How it works in 60 seconds

BYOH is built to be driven by your AI agent — not by you typing commands. Install the plugin, then just talk. The conversation is the interview, the wizard, and the build.

1. Install the plugin      # Claude Code / Codex / agy — auto-installs the binary
2. "Build me a harness"    # your agent interviews you, builds, fills any gaps
                           # itself, and installs — all in conversation

On the next session your host loads the harness automatically — agents, skills, and goal pipelines tuned to you.

Install the plugin (recommended)

Using Claude Code, Codex, or agy? Install the plugin. It bundles the MCP server and auto-installs the binary on first load — no Rust toolchain, no manual setup:

Claude Code:

claude plugin marketplace add epicsagas/BuildYourOwnHarness
claude plugin install byoh@epicsagas

agy (Antigravity):

agy plugin install /path/to/BuildYourOwnHarness
agy plugin enable byoh

Codex:

codex plugin marketplace add /path/to/BuildYourOwnHarness
codex plugin add byoh@epicsagas

Using any other MCP-compatible host?

BYOH speaks MCP, so Cursor, Zed, Continue, and friends work too. Install the binary once, then point your host at the server:

byoh serve   # stdio MCP server

{ "mcpServers": { "byoh": { "command": "byoh", "args": ["serve"] } } }

Note: The repo is currently private. Use the paths above. Once public it will appear in the shared epicsagas/plugins marketplace.

Install the binary directly

Only needed if you're not using the plugin (the plugin auto-installs the binary on first session) or you want BYOH on a non-plugin MCP host. Prebuilt binaries are published for every release — no Rust toolchain required.

macOS / Linux

curl --proto '=https' --tlsv1.2 -LsSf \
  https://github.com/epicsagas/BuildYourOwnHarness/releases/latest/download/install.sh | sh

Windows (PowerShell)

irm https://github.com/epicsagas/BuildYourOwnHarness/releases/latest/download/install.ps1 | iex

From source

cargo install byoh --git https://github.com/epicsagas/BuildYourOwnHarness

byoh --version   # verify

Agent-led mode — the main path

Once your host is connected, you don't type commands — you just talk. Your agent calls BYOH's MCP tools directly, and the conversation is the interview, the build, and the evolve cycle:

You: I'm a backend Go developer shipping a payments API this month. Build me a harness.

Agent: (scans your repo via profile_scan, asks a few targeted questions via profile_interview, locks the genre to developer) → build synthesizes a HarnessBundle and classifies every skill as matched / authored / skeleton → for any skeleton the profile needs (say, a payments-specific verification skill), the agent authors it on the spot via author_skill, then builds again to confirm → installs agents, skills, and a secure-ship goal pipeline into Claude Code. Authored content persists across rebuilds. Done — next session, your agent already speaks your stack.

That same flow, in the suggested tool order:

profile_create → profile_scan → profile_interview → profile_confirm
           → build → (author_skill / author_doc to fill skeletons) → build → install_plugin