feat: add Prime Agent harness support

Cargo.toml

@@ -15,6 +15,7 @@ members = [
     "crates/adapter-kimi",
     "crates/adapter-hermes",
     "crates/adapter-pi",
+    "crates/adapter-prime-agent",
     "crates/adapter-muse",
     "crates/adapter-common",
     "crates/adapter-smith",

README.md

@@ -22,9 +22,9 @@ More screenshots and demos: [gallery](gallery.md).
 
 ## Why construct?
 
-- **tmux for agent fleets** — manage Codex, Claude Code, OpenCode, Muse,
-  Antigravity, Grok, and smith sessions from your terminal. Sessions live in
-  the daemon, not your terminal: SSH drops, laptop sleeps — agents keep
+- **tmux for agent fleets** — manage Codex, Claude Code, OpenCode, Prime Agent,
+  Muse, Antigravity, Grok, and smith sessions from your terminal. Sessions live
+  in the daemon, not your terminal: SSH drops, laptop sleeps — agents keep
   working, and you reattach exactly where you left off, scrollback and all.
   Single Rust binary.
 - **Lineage** — sessions branch like ideas do: fork one when you want a
@@ -73,6 +73,8 @@ first:
 - **Antigravity** — install the `agy` CLI and complete its OAuth login.
 - **Grok** — install the `grok` CLI and complete its OAuth login.
 - **Muse** — install the `muse` CLI and run `muse login`.
+- **Prime Agent** — install the `prime-agent` CLI and configure a provider or
+  subscription.
 - **smith** — built in to construct. Talks to OpenAI, Anthropic, Google Gemini,
   or xAI Grok via API key, a local Ollama, a ChatGPT subscription via Codex
   OAuth, a Claude subscription via the authenticated Claude Code CLI, or a Grok
@@ -113,6 +115,7 @@ favorite CLI harness command:
 ```sh
 construct new codex
 construct new claude --model opus
+construct new prime-agent
 construct new muse
 ```