# Task ID: 147

**Title:** Headless coding agent runtime adapter

**Status:** pending

**Dependencies:** 143, 146

**Priority:** medium

**Description:** Implement AgentRuntime adapter that runs a headless coding agent inside the session pod

**Details:**

Create src/mcpd/src/services/agent-runtime/headless-adapter.ts:
1. Implement AgentRuntime interface
2. startSession: create AgentSession, provision pod with coding agent image, inject persona as prompt files in container
3. send: exec into container to send message to agent process (implementation depends on chosen agent's IPC)
4. status: check agent process state via exec or container status
5. result: read agent output (branch, commit, summary) from known output location
6. endSession: stop container, update session state
7. The coding agent handles git, branching, MCP tools, streaming internally
8. Persona delivered via mounted files the agent reads

**Test Strategy:**

Integration tests against test cluster: start session, send simple task, verify branch created and pushed.