fix(agents): raise maxTurns ceilings that silently truncate swarm deliverables

[midineutron]

Summary

Three agents' maxTurns ceilings are set below what a real 6-phase swarm consumes, so they exhaust their budget mid-report and return truncated final messages.

Found while running /pds:swarm end-to-end on a production repo (a ~1500-line OpenAPI spec resync, 11 acceptance criteria, 2 workers). Measured tool-call counts from that run:

Agent	maxTurns	Tool calls used	Outcome
scout	15	27	Report never reached the orchestrator — Phase 6 deliverable lost
reviewer	25	39	Truncated; recovered after a manual follow-up SendMessage
validator	40	64	Truncated; recovered after a manual follow-up SendMessage

Why it matters

The failure is quiet and it lands on the deliverable, not the work.

The validator and reviewer had both finished their actual work — merging, testing, reviewing — and were cut off while writing it up. A follow-up message retrieved it. The scout was worse: its report never arrived at all, so the orchestrator recorded it as a failed agent and substituted its own observations. scout-report.md is one of the three artifacts the teardown gate checks for, so losing it degrades the gate to a no-op.

Note also that scout runs on haiku, which tends to use more tool calls to reach the same result, against the tightest ceiling in the roster.

Change

scout      15 -> 40
reviewer   25 -> 50
validator  40 -> 80

Sized above observed usage with headroom, and kept proportionate to existing roster values (orchestrator: 100, shepherd: 80, worker: 50).

These are ceilings, not budgets — raising them costs nothing on runs that don't need the turns, while hitting one silently destroys a report.

Scope

Frontmatter only, three one-line changes. No behavioral or prompt changes.

Not included

Other issues from the same run are filed separately rather than bundled here, since they need root-cause discussion rather than a mechanical fix:

• worker.md hardcodes isolation: worktree, which fails with "WorktreeCreate hook failed: hook succeeded but returned no worktree path" — this makes pds:worker unspawnable.
• Agent(name=...) is rejected for teammate-spawned orchestrators, which breaks the named-worker dispatch pattern documented in skills/swarm/SKILL.md Phase 3.

[claude]

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