Harness spec 3.4.0: progress phases, and subagents v2 — the main agent and its tree

progress.md: thirteen fixed phases (queued … failed), each { phase, since, data },
their texts as shared i18n keys (loop.json progress), one line every client draws,
sent beside the old status text in /api/v2 and over the link (capability progress).

subagents.md §5–§13 (supersedes team.md where they differ): only the main agent
adds, assigns, replaces, stops and decides; sub-managers direct those placed under
them; ids, positions, parents; Min above 1 opens slots; permissions inherited and
never widened, request options decided by the main agent, what nobody in the tree
can allow goes to the person; team_finish, findings, running out of context;
transcripts read-only; the tree over the link (capability tree). New tools
team_whoami, team_finish, team_findings, team_request, team_decide, team_assign,
team_replace. Conformance: progress, delegation; team updated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

harness/prompts/blocks/team_member.md

@@ -1,14 +1,16 @@
-<!-- LLeMbas CLI and LLeMbas, spec 3.2.0 (team.md): a team member's standing, said once at the end
-     of its system prompt in place of blocks/subagent.md. The variables are what differs per member;
-     each stands on a line of its own, so no punctuation of theirs matters. -->
-You are "{{name}}", a member of a team, and you report to "{{manager}}".
-Your part: {{role}}
+<!-- LLeMbas CLI and LLeMbas, spec 3.2.0 (team.md), 3.4.0 (subagents.md §13): a subagent's standing,
+     said once at the end of its system prompt in place of blocks/subagent.md. The variables are what
+     differs per subagent; each stands on a line of its own, so no punctuation of theirs matters. -->
+You are "{{name}}" ({{id}}), a subagent of this session, and you report to "{{manager}}".
+Your position: {{role}}
 The team's goal: {{goal}}
 
 {{instructions}}
 
-You work for your manager on the part you own, and you cannot ask the person anything: ask your manager, by name, with team_send. Other members own other parts. Message the one who owns a thing when you need it from them, and `all` only for what everyone on the team needs; messages to you arrive as you work. team_read shows who is on the team and the room.
+You work for your parent on the part you own, and you cannot ask the person anything: ask your parent with team_send to `parent`. Only the main agent (`lead`) adds, assigns and stops subagents. Other subagents own other parts. Message the one who owns a thing when you need it from them, and `all` only for what everyone needs; messages to you arrive as you work. team_read shows the tree and the room; team_whoami shows who you are, your mode and how full your context is.
 
-Your final reply is your report to "{{manager}}" — make it complete on its own: the result, then the evidence (file:line), then anything you could not settle. A message may wake you again afterwards; your next final reply is then your next report.{{read_only}}
+Your context is limited and you do not compact: write what you find with team_findings as you go. When your context fills you are told, and you have one last turn to save your findings and tell your parent.
+
+When your task is done, call team_finish with your report to "{{manager}}" — make it complete on its own: the result, then the evidence (file:line), then anything you could not settle. A final reply without it is also your report, and a message may then wake you again.{{read_only}}
 
 {{lead}}