set_status: consolidate whoami into get_agent_meta with optional name

docs/turn-loop.md

@@ -214,8 +214,17 @@ it as a stdio child via `--mcp-config`. The hyperhive socket name is
   short pointer. Each agent's pending-reminder count is capped
   (default 50, override via `HIVE_REMIND_MAX_PENDING_PER_AGENT`);
   scheduling a new one fails if the cap is already hit.
-- `whoami()` — `{ name, role, pronouns, hyperhive_rev }` for
-  self-identification without scraping the system prompt.
+- `set_status(text)` — set a free-text status string visible on
+  the operator dashboard. Persisted to
+  `{state_dir}/hyperhive-status`; survives harness restarts. Pass
+  an empty string to clear.
+- `get_agent_meta(name?)` — fetch identity + status metadata for
+  an agent: `{ name, role, hyperhive_rev, status_text,
+  status_set_at }`. Pass `name` to query a peer (e.g. check
+  whether a sub-agent is idle before sending it work). Omit
+  `name` to get your own identity stamp — replaces the previous
+  `whoami` tool. Status fields are `None` when the target has
+  never called `set_status` or has cleared it.
 - `request_next_turn()` — ask the harness to start another turn
   immediately after this one ends, even if the inbox is empty. Use for
   multi-turn tasks (long builds, sequential steps) where you want to
@@ -314,10 +323,11 @@ meta's.
   startup crashes, etc.). Pass the plain logical agent name;
   hive-c0re resolves the machine name (`h-<name>`, manager
   `hm1nd`). `lines` defaults to 50, host-capped at 500.
-- `remind` / `get_loose_ends` / `cancel_loose_end` / `whoami` —
-  same as the sub-agent tools above. `get_loose_ends` scopes to
-  the manager's own items by default; pass `agent: "*"` for a
-  hive-wide view, or `agent: "<name>"` to inspect one agent.
+- `remind` / `get_loose_ends` / `cancel_loose_end` / `set_status`
+  / `get_agent_meta` — same as the sub-agent tools above.
+  `get_loose_ends` scopes to the manager's own items by default;
+  pass `agent: "*"` for a hive-wide view, or `agent: "<name>"`
+  to inspect one agent.
   `cancel_loose_end` may cancel any agent's row.
 
 The boundary: lifecycle ops on *existing* sub-agents