# Retro: 063 dynamic delegation contract

Merged SHA: `f1dca26`
Closed backlog: `063`
Branch: `deliver/063-dynamic-delegation-contract`

## Shipped

Harness Kit now makes roster-backed delegation an explicit workflow-skill
contract. The shipped change strengthened `scripts/check-agent-roster.py`,
added runtime references for Claude Code, Codex, Antigravity CLI, and Pi, and
updated the core workflow skills so the lead agent owns orchestration,
synthesis, evidence, and final verification rather than doing substantive work
solo by default.

## Evidence

- `dagger call check --source=.` passed on the shipping branch after the
  backlog archive and on the pre-archive merge-ready commit.
- `python3 scripts/check-agent-roster.py` reported `skills/: 19 delegation
  floor(s) valid` and `harnesses/: 4 runtime delegation reference(s) valid`.
- Roster receipts for `063` included Claude and Antigravity final audit lanes;
  Claude's checkbox-hygiene finding was accepted and fixed before merge.

## Learnings

- The contract is now visible and gated, but the first gate is still mostly
  phrase/keyword based. That is acceptable for this ship because the live skill
  text was tightened and reviewed, but it should be hardened with a negative
  fixture so future boilerplate cannot pass by accident.
- Antigravity remains useful as an alternate audit lane when the prompt is
  followed, but prior receipts show zero-exit irrelevant outputs are possible;
  transcript inspection remains mandatory.
- No harness mutation should land directly on `master` from reflection. The
  only applied reflect output here is a backlog hardening ticket.

## Follow-Up

- Created `backlog.d/074-tighten-delegation-floor-linter.md`.
