HM now mints a random per-agent access token at deploy, injects it into the
agent env (AGENT_ACCESS_TOKEN + HEICODE_AGENT_ID) and returns it to the
deploying client (agent list access_token). Only the owning user receives it,
so only they can drive the agent — closing the gap where any valid sk- could
drive any agent and exfiltrate its mounted resources.
AM authorizes the caller either locally (compare to its env token) or via the
new public POST /api/heicode/agent-access/verify {agent_id, access_token} ->
{valid, user_id} (constant-time compare, no info leak on miss). AM may opt out.
Docs: AM contract §3.1 + client API §6 updated; access_token no longer empty.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>